Table of Contents
- Contents
- 1 How to read this manual
- 2 Safety instructions
- 3 Introduction to Eaton UPS
- 4 UPS installation plan and unpacking
- 5 UPS system installation
- 6 Communication interfaces
- 7 UPS operating instructions
- 7.1 UPS controls and indicators
- 7.2 Signing in
- 7.3 System control instructions
- 7.3.1 Starting the UPS system in the double conversion mode
- 7.3.2 Starting the UPS system in the bypass mode
- 7.3.3 Transferring from the double conversion mode to the bypass mode
- 7.3.4 Transferring from the bypass mode to the double conversion mode
- 7.3.5 Transferring from the double conversion mode to the Energy Saver System mode
- 7.3.6 Transferring from the Energy Saver System mode to the double conversion mode
- 7.3.7 Transferring from the double conversion mode to the Variable Module Management System mode
- 7.3.8 Transferring from the Variable Module Management System mode to the double conversion mode
- 7.3.9 Shutting down the UPS system and critical load
- 7.3.10 De-energizing the critical load
- 7.4 UPS control instructions
- 7.5 UPM control instructions
- 7.6 Using the Remote Emergency Power-off switch
- 7.7 Turning the UPS from the double conversion mode to the maintenance bypass mode
- 7.8 Turning the UPS from the maintenance bypass mode to the double conversion mode
- 8 UPS maintenance
- 9 Technical data
- 10 Warranty
- 11 Appendix A: Recommended secure hardening guidelines
Eaton 91PS-15+15(30)-30-4x9Ah-LL-SB-6 User Manual
Displayed below is the user manual for 91PS-15+15(30)-30-4x9Ah-LL-SB-6 by Eaton which is a product in the Uninterruptible Power Supplies (UPSs) category. This manual has pages.
Related Manuals
User's and installation
guide
Eaton 91PS/93PS UPS 8–40 kW
P-164000493
Copyright © 2018 Eaton Corporation plc. All rights reserved.
This manual contains important instructions that you should follow during installation and
maintenance of the UPS and batteries. Please read all instructions before operating the
equipment and save this manual for future reference.
This is a product for commercial and industrial application in the second environment.
Installation restrictions or additional measures may be needed to prevent disturbances.
The contents of this manual are the copyright of the publisher and may not be reproduced
(even extracts) without the written approval of Eaton Corporation. Every care has been
taken to ensure the accuracy of the information contained in this manual, but no liability
can be accepted for any errors or omission. The right to make design modifications is
reserved.
Unauthorized copying and lending are prohibited.
Eaton Power Quality Oy
Address: Koskelontie 13
FI-02920 Espoo
FINLAND
Internet: www.eaton.eu
Approvals and version history
Revision Date Description of change Approved by
001 17.04.2015 First issue Otto Asunmaa
002 06.07.2015 Minor updates Otto Asunmaa
003 14.07.2016 Updated to cover 93PS 8–20 kW UPS
C-model
Otto Asunmaa
004 28.05.2018 Minor updates. Recommended secure
hardening guidelines added.
Otto Asunmaa
005 12.09.2018 91PS addition Otto Asunmaa
Original instructions _X_ / Translation of the original instructions __
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 2 (117)
Contents
1 How to read this manual.......................................................................... 7
1.1 Safety-related signs.................................................................... 7
1.2 Safety symbols............................................................................7
1.2.1 Hazard symbols............................................................. 7
1.2.2 Prohibited action symbols..............................................7
1.2.3 Mandatory action symbols............................................. 8
1.3 Conventions used in this document............................................ 8
1.4 Glossary......................................................................................8
2 Safety instructions..................................................................................10
2.1 Audience................................................................................... 12
2.2 CE marking............................................................................... 12
2.3 User precautions.......................................................................12
2.4 Environment..............................................................................13
2.5 Symbols on the UPS and accessories......................................13
2.6 For more information.................................................................14
3 Introduction to Eaton UPS......................................................................15
3.1 Looking inside the UPS system................................................ 17
3.2 UPS operating modes...............................................................19
3.2.1 Normal operating modes............................................. 20
3.2.2 Stored energy and battery mode................................. 23
3.2.3 Bypass mode............................................................... 25
3.3 UPS features.............................................................................27
3.3.1 Advanced Battery Management.................................. 27
3.3.2 Powerware Hot Sync................................................... 27
3.3.3 Power Conditioner....................................................... 28
3.3.4 Frequency Converter................................................... 28
3.4 Software and connectivity features........................................... 28
3.4.1 User interface.............................................................. 28
3.4.2 Power Management Software..................................... 29
3.5 Options and accessories...........................................................29
3.5.1 Maintenance Bypass Switch (optional)........................29
3.5.2 Field Installed UPM (accessory).................................. 29
3.6 Battery system.......................................................................... 30
3.7 Basic system configurations..................................................... 30
4 UPS installation plan and unpacking......................................................33
4.1 Creating an installation plan......................................................33
4.2 Installation checklist.................................................................. 34
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 3 (117)
4.3 Site preparations.......................................................................34
4.3.1 Environmental and installation considerations.............35
4.3.2 UPS system power wiring preparations.......................39
4.4 Unpack and unload the UPS.....................................................50
5 UPS system installation......................................................................... 55
5.1 Steps to install the UPS............................................................ 55
5.2 Battery system installation........................................................ 58
5.2.1 Battery trip wiring......................................................... 58
5.3 Installing UPS external battery cabinet and battery power
cabling............................................................................................. 59
5.4 Installing a remote EPO switch ................................................ 60
5.5 Installing interface connections.................................................61
5.5.1 Installing customer input signals interface................... 61
5.5.2 Battery breaker wiring interface................................... 61
5.5.3 Relay output interface connections..............................62
5.5.4 Industrial Relay Card interface connections................ 62
5.5.5 MiniSlot interface connections..................................... 63
5.5.6 Installing signal interface connections in a parallel
system................................................................................ 63
5.6 Wiring parallel 91PS/93PS UPS systems................................. 64
5.6.1 Power wiring overview................................................. 64
5.6.2 Control signals overview..............................................66
5.6.3 Installing parallel control wiring....................................67
5.7 UPS system interface wiring preparation..................................70
6 Communication interfaces......................................................................71
6.1 Native signal terminals..............................................................73
6.2 MiniSlot cards........................................................................... 74
6.3 Intelligent Power Software........................................................ 76
6.4 Signal input monitoring............................................................. 76
6.5 General purpose relay contact..................................................76
6.6 Configuring relays..................................................................... 77
7 UPS operating instructions.....................................................................81
7.1 UPS controls and indicators......................................................81
7.1.1 Control panel............................................................... 81
7.1.2 Status indicators.......................................................... 82
7.1.3 System events............................................................. 84
7.1.4 Menu structure of the 91PS/93PS UPS.......................84
7.2 Signing in.................................................................................. 88
7.3 System control instructions....................................................... 88
7.3.1 Starting the UPS system in the double conversion
mode...................................................................................88
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 4 (117)
7.3.2 Starting the UPS system in the bypass mode............. 89
7.3.3 Transferring from the double conversion mode to
the bypass mode................................................................ 90
7.3.4 Transferring from the bypass mode to the double
conversion mode................................................................ 90
7.3.5 Transferring from the double conversion mode to
the Energy Saver System mode.........................................91
7.3.6 Transferring from the Energy Saver System mode
to the double conversion mode.......................................... 91
7.3.7 Transferring from the double conversion mode to
the Variable Module Management System mode...............91
7.3.8 Transferring from the Variable Module
Management System mode to the double conversion
mode...................................................................................92
7.3.9 Shutting down the UPS system and critical load......... 92
7.3.10 De-energizing the critical load..................................... 93
7.4 UPS control instructions............................................................93
7.4.1 Starting a single UPS...................................................93
7.4.2 Shutting down a single UPS........................................ 94
7.4.3 Enabling and disabling the battery charger................. 94
7.5 UPM control instructions........................................................... 95
7.5.1 Starting the UPMs........................................................95
7.5.2 Shutting down the UPMs............................................. 95
7.6 Using the Remote Emergency Power-off switch.......................96
7.7 Turning the UPS from the double conversion mode to the
maintenance bypass mode..............................................................96
7.8 Turning the UPS from the maintenance bypass mode to
the double conversion mode............................................................98
8 UPS maintenance................................................................................ 100
8.1 Important safety instructions................................................... 100
8.2 Preventive maintenance......................................................... 101
8.2.1 Daily maintenance..................................................... 101
8.2.2 Monthly maintenance.................................................102
8.2.3 Periodic maintenance................................................ 102
8.2.4 Annual maintenance.................................................. 102
8.2.5 Battery maintenance..................................................102
8.3 Recycling the used UPS or batteries...................................... 103
8.4 Maintenance training...............................................................105
9 Technical data......................................................................................106
9.1 Directives and standards........................................................ 106
9.2 UPS system input................................................................... 106
9.3 UPS system output................................................................. 107
9.4 UPS environmental specifications.......................................... 108
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 5 (117)
9.5 Battery specification................................................................108
10 Warranty...............................................................................................110
10.1 General................................................................................... 110
10.2 Whom to contact in case of Warranty..................................... 111
11 Appendix A: Recommended secure hardening guidelines.................. 112
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 6 (117)
1 How to read this manual
1.1 Safety-related signs
The following table explains the safety-related signs used in this document.
DANGER DANGER indicates a hazard with a high level of risk which, if
not avoided, will result in serious injury or death.
WARNING
WARNING indicates a hazard with a medium level of risk which,
if not avoided, could result in serious injury or death, or damage
to your machine.
CAUTION
CAUTION indicates a hazard with a low level of risk which, if not
avoided, could result in minor or moderate injury, or damage to
your machine.
Note: Notes are used to indicate important information and useful tips.
1.2 Safety symbols
1.2.1 Hazard symbols
These symbols indicate a hazardous situation or action. Symbols are used to
warn of situations, which may cause environmental damage and personal injury.
General warning sign Explosion and fire hazard
Electrical hazard Corrosive hazard
Battery hazard
1.2.2 Prohibited action symbols
These symbols are used to indicate an action that should not be taken.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 7 (117)
General symbol for pro-
hibited action
No smoking
Limited or restricted ac-
cess
1.2.3 Mandatory action symbols
These symbols are used to indicate an action that must be taken.
General symbol for man-
datory action
Disconnect from power
source
Read the manual or in-
structions
1.3 Conventions used in this document
This document uses the following type conventions:
•Bold type highlights important concepts in discussions, key terms in
procedures and menu options, or represents a command or option that you
type or enter at a prompt.
•
Italic type
highlights notes and new terms when they are defined.
•Screen type represents information that appears on the screen or LCD.
1.4 Glossary
Eaton documentation uses these acronyms to refer to Eaton UPS products or
their parts:
Table 1: Glossary of acronyms
ABM Advanced Battery Management
BIS Bypass Input Switch
EAA Energy Advanced Architecture
EBC External Battery Cabinet
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 8 (117)
EMBS External Maintenance Bypass Switch
EPO Emergency Power-off
ESS Energy Saver System
FI-UPM Field Installed UPM
IPM Intelligent Power Manager
IPP Intelligent Power Protector
MBP Maintenance Bypass
MBS Maintenance Bypass Switch
MCB Miniature Circuit Breaker
MIS Maintenance Isolation Switch
MOB Module Output Breaker
REPO Remote Emergency Power-off
RIS Rectifier Input Switch
SCR Silicon-controlled Rectifier
SNMP Simple Network Management Protocol
STSW Static (bypass) Switch
UPM Uninterruptible Power Module
UPS Uninterruptible Power Supply
VMMS Variable Module Management System
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 9 (117)
2 Safety instructions
DANGER
Important safety instructions!
Keep these instructions!
This document contains important instructions that must be obeyed during the
installation, operation and maintenance of the UPS and the batteries. Read all of
the instructions before operating the equipment. Keep this manual for future
reference. These instructions are also available for download at www.eaton.eu/
91psand93ps.
DANGER
Operations in the UPS must be done by an authorized Eaton Customer
Service Engineer or by other qualified service personnel authorized by Eaton.
There are no user-serviceable parts inside the UPS.
The UPS operates with mains, battery or bypass power. It contains components
that carry high currents and voltage. A properly installed enclosure is earthed
and IP20 rated against electrical shock and foreign objects. However, the UPS
is a sophisticated power system and only qualified personnel can install and
service it.
DANGER
This UPS carries lethal voltages. All repairs and service must be done by
authorized personnel only. There are no user-serviceable parts inside the
UPS.
WARNING
The UPS is powered by its own energy source (batteries). The output
terminals may be energized even when the UPS is disconnected from an AC
source. To reduce the risk of fire or electric shock, install this UPS in a
temperature and humidity controlled, indoor environment that is free of
conductive contaminants.
The ambient temperature must not exceed 40 °C (104 °F). Do not operate the
UPS near water or excessive humidity (95% maximum). The system is not
intended for outdoor use.
Before you start any installation or service work, make sure that all AC and
DC power sources are disconnected. Power may come from multiple sources.
Also ensure system grounding / PE continuity.
In a parallel system, the output terminals may be energized even when the
UPS is turned off.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 10 (117)
WARNING
Batteries present a risk of electrical shock or burn from high short-circuit
current. Obey the precautions.
Electric energy hazard. Do not attempt to alter any battery wiring or
connectors. Attempting to alter wiring can cause injury.
Do not open or mutilate batteries. Released electrolyte may be toxic and is
harmful to the skin and eyes.
Batteries may contain HIGH VOLTAGES, and CORROSIVE, TOXIC and
EXPLOSIVE substances. Because of the battery string the output receptacles
may carry high voltage even when the AC supply is not connected to the
UPS. Read the shutdown instructions carefully.
IMPORTANT: The battery may consist of multiple parallel strings. Make sure
that you disconnect all strings before installation.
CAUTION
Only qualified service personnel knowledgeable of batteries and the required
precautions can do installation or service work on batteries. Keep
unauthorized personnel away from the batteries. Before you install or replace
batteries, obey all the warnings, cautions, and notes concerning appropriate
handling. Do not disconnect the batteries when the UPS is in the Battery
mode.
Make sure that your replacement batteries are of the same number and type
as the battery that was originally installed in the UPS. See more accurate
instructions on the UPS.
Before you connect or disconnect battery terminals, disconnect the charging
source by opening the corresponding battery circuit breaker.
Examine if the battery is inadvertently grounded. If it is, remove the source of
the ground. Contacting any part of a grounded battery can cause a risk of
electric shock. If you disconnect the grounding connection before you work on
the batteries, the risk of an electric shock is less likely.
Discard batteries according to your local disposal requirements. Do not
dispose of batteries in a fire. When exposed to flame, batteries may explode.
To ensure proper cooling airflow and to protect personnel from dangerous
voltages inside the unit, keep the UPS door closed and the front panels
installed.
Do not install or operate the UPS system close to gas or electric heat
sources. Keep the operating environment within the parameters stated in this
document.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 11 (117)
CAUTION
Keep the surroundings of the UPS uncluttered, clean, and free from excess
moisture.
Obey all DANGER, CAUTION, and WARNING notices affixed to the
equipment.
2.1 Audience
The intended audience of this document are as follows:
• People who plan and perform the installation of the UPS
• People who use the UPS
This document provides guidelines for how to check the UPS delivery and how
install and operate the UPS.
The reader is expected to know the fundamentals of electricity, wiring, electrical
components and electrical schematic symbols. This document is written for a
global reader.
CAUTION
Read this document before you start to operate or perform work on the UPS.
2.2 CE marking
The product has a CE marking in compliance with the following European
directives:
• LVD Directive (Safety) 2014/35/EU
• EMC Directive 2014/30/EU
• RoHS Directive 2011/65/EU
Declarations of conformity with UPS harmonized standards and directives EN
62040-1 (Safety), EN 62040-2 (EMC) and EN 50581 (RoHS) are available at
www.eaton.eu
or by contacting your nearest Eaton office or authorized partner.
2.3 User precautions
The only permitted user operations are as follows:
• Startup and shutdown of the UPS, excluding the commissioning startup.
• Use of the LCD control panel and the Maintenance Bypass Switch (MBS).
• Use of optional connectivity modules and their software.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 12 (117)
Follow the precautions and only perform the described operations. Any deviation
from the instructions can be dangerous to the user or cause accidental load
loss.
DANGER
Do not open any other screws in the unit than those holding the cover plates
of the MiniSlots and the MBS locking plate. Failure to recognize the electrical
hazards can prove fatal.
CAUTION
The 8-40 kW models are available as a C2 UPS product in regard to
emissions and a C3 UPS product in regard to immunity. The UPS can be
placed both in residential and commercial or industrial environments. When
included in a residential environment, this product may cause radio
interference, in which case you may have to take additional preventive
measures.
2.4 Environment
The UPS must be installed according to the recommendations in this document.
Never install the UPS in an airtight room, in the presence of flammable gases, or
in an environment exceeding the specifications.
Excessive amount of dust in the operating environment of the UPS may cause
damage or lead to malfunction. Always protect the UPS from the outside
weather and sunshine. In order to maximize internal battery service life time, the
recommended operating temperature range is from +20 ºC to +25 ºC.
WARNING
During charge, float charge, heavy discharge, and overcharge, hydrogen and
oxygen gases are emitted from lead-acid and NiCd batteries into the
surrounding atmosphere. Explosive gas mixture may be created if the
hydrogen concentration exceeds 4% by volume in air. Ensure the necessary
air flow rate for the ventilation of the UPS location.
2.5 Symbols on the UPS and accessories
The following are examples of symbols used on the UPS or its accessories. The
symbols are used to alert you of important information.
RISK OF ELECTRIC SHOCK
Indicates that a risk of electric shock is present and the associated
warning should be observed.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 13 (117)
CAUTION: REFER TO OPERATOR'S MANUAL
Refer to your operator's manual for additional information, such as
important operating and maintenance instructions.
This symbol indicates that you may not discard the UPS or the UPS
batteries in the trash. This product involves sealed, lead-acid batter-
ies and they must be disposed of properly. For more information,
contact your local recycling / reuse or hazardous waste center.
This symbol indicates that you may not discard waste electrical or
electronic equipment (WEEE) in the trash. For proper disposal, con-
tact your local recycling / reuse or hazardous waste center.
2.6 For more information
Address any inquiries about the UPS and the battery cabinet to the local office
or an agent authorized by the manufacturer. Quote the type code and the serial
number of the equipment.
Call your local service representative if you need help with any of the following:
• scheduling initial startup
• regional locations and telephone numbers
• a question about any of the information in this manual
• a question that this manual does not answer
Note: For more information about the installation space, safe operation and
working, see IEC 62485-2: Safety requirements for secondary batteries and
battery installations.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 14 (117)
3 Introduction to Eaton UPS
Figure 1. 15/20 kW C-model frame, 15/20 kW standard frame and 30/40 kW frame
The Eaton® 91PS/93PS uninterruptible power supply (UPS) is a true online,
continuous-duty, transformerless, double-conversion, solid-state single-phase
(91PS) or three-phase (93PS) system. It supplies conditioned and
uninterruptible AC power to critical load and protects it from power failures.
The UPS is used to prevent loss of valuable electronic information, minimize
equipment downtime, and minimize the adverse effect on production equipment
due to unexpected power problems.
The Eaton UPS continually monitors incoming electrical power and removes the
surges, spikes, sags, and other irregularities that are inherent in commercial
utility power. Working with a building’s electrical system, the UPS system
supplies clean, consistent power that sensitive electronic equipment require for
reliable operation. During brownouts, blackouts, and other power interruptions,
batteries provide emergency power to safeguard operation.
The UPS system is housed in a single, free-standing cabinet with safety shields
behind the door for protection against hazardous voltage. Each UPS cabinet has
a centralized system static bypass. The available static bypass ratings are 15
and 30 kW for 91PS and 20 kW and 40 kW for 93PS. The static bypass size is
chosen according to UPS system power. For example, if a future requirement is
to upgrade the UPS capacity, the UPS bypass rating has to be selected
accordingly. In addition, the bypass ratings of all the UPS cabinets in a parallel
system need to be matched.
Eaton 91PS/93PS output power ratings are based on 15 kW or 20 kW rated
uninterruptible power modules (UPMs).
91PS/93PS is also available as a C-model, which consists of the electrical part
of the 91PS/93PS UPS 15/20 kW frame without the battery compartment.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 15 (117)
UPS frame Position in Figure
9
Number of UPMs Ratings
91PS 15 kW A and B 1 8, 10, 15 kW
91PS 30 kW C 1 or 2 8, 10, 15, 20, 30 kW
93PS 20 kW A and B 1 8, 10, 15 or 20 kW
93PS 40 kW C 1 or 2 8, 10, 15, 20, 30 or
40 kW
A UPM includes a rectifier, inverter, battery converter, and independent controls.
Each UPM is able to operate independently from the other power modules.
Note: Startup and operational checks must be done by an authorized Eaton
Customer Service Engineer or by other qualified service personnel authorized
by Eaton, or the terms specified in the Warranty (see Chapter
10
) become
void. This service is offered as part of the sales contract for the UPS. Contact
service in advance (usually a two-week notice is required) to reserve a
preferred startup date.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 16 (117)
3.1 Looking inside the UPS system
Figure 2. Looking inside the 15/20 kW standard and C-model frames
Figure 3. Looking inside the 30/40 kW frame
1. Control panel 6. Input switch (optional in some regions)
2. Door latch 7. Battery breaker for internal batteries *
3. Power module (UPM) 8. Maintenance bypass switch (optional)
4. Internal battery (not included in the C-
model)
*In the C-model for external batteries
5. Communications area
The system level static bypass in the UPS cabinet determines the attainable
output power of the UPS. The static bypass line consists of a static switch and a
backfeed protection isolation device connected in series. In addition, there is a
system level control unit that constantly monitors the power delivered through
the bypass line or to the input of the UPS. Transfers to static bypass are
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 17 (117)
seamless and performed automatically by the system as needed, for example,
in case of an extended system overload.
Each UPM includes a rectifier, battery converter, inverter and independent
controls. Each UPM is able to operate and share the load independently,
despite the status of the other UPMs.
In addition, the system can have a UPS-internal maintenance bypass switch as
a factory-installed option.
Table 2: UPS configurations
UPS frame Number of UPMs Static switch [kW] Internal battery
93PS 20 kW 1 20 Yes
93PS 20 kW
C-model
1 20 No
93PS 40 kW 1 or 2 40 Yes
91PS 15 kW 1 15 Yes
91PS 15 kW
C-model
1 15 No
91PS 30 kW 1 or 2 30 Yes
WARNING
Hazardous voltage can exist in the battery circuit until disconnected from
external battery source.
In the 30/40 kW frame, the two UPMs are paralleled internally.
The rectifier input switch and battery breaker are available as standard for all the
models. The internal MBS is available as option for all the models.
If utility power is interrupted or falls outside the parameters specified in Chapter
9
, the UPS uses a backup battery supply to maintain power to the critical load
for a specified period of time or until the utility power returns. For extended
power outages, the UPS allows you to either transfer to an alternative power
system (such as a generator) or shut down your critical load in an orderly
manner. The UPS bypass consists of a continuous-duty static switch and a
backfeed protection isolation device. All the models also include an internal fuse
in the bypass line. The backfeed protection and bypass fuse are located in
series with the static switch.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 18 (117)
3.2 UPS operating modes
Table 3: UPS operating modes
UPS operating mode Description
Normal operating modes:
Double conversion mode Critical load is supplied by the inverter,
which derives its power from rectified utility
AC power. In this mode, the battery charg-
er also provides charging current for the
battery, if needed.
Variable Module Management System
(VMMS) mode
Critical load is supplied by the inverter. The
inverter derives its power from rectified util-
ity AC power, identically to double conver-
sion mode. In the VMMS mode, the UPS
system is able to optimise the load level
per power module: the operating efficiency
is significantly improved when operating
load is below 50% of UPS capacity. The
UPS system will automatically place the re-
dundant power modules to suspended
mode. In case of any anomalies in utility or
a sudden load increase, the suspended
power modules are able to transfer to on-
line mode with less than 2 ms transition
time.
Energy Saver System (ESS mode) Critical load is supported securely by utility
power through the static bypass switch with
double conversion available on-demand
with typically less than a 2 ms transition
time, should any abnormal condition be de-
tected in the utility. When operating in the
ESS mode, the load is protected with inher-
ent surge suppression. Operating the UPS
in the ESS mode increases system effi-
ciency up to 99%, allowing significant sav-
ings in energy losses without compromis-
ing system reliability.
Other operating modes:
Stored energy mode Energy is drawn from a DC backup power
source and converted to AC power by the
UPS inverter. Most commonly VRLA bat-
teries are introduced to the system for this
purpose, and the mode of operation is
called the battery mode.
Bypass mode Critical load is supported directly by utility
power through the UPS static switch.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 19 (117)
3.2.1 Normal operating modes
During normal UPS operation, power for the system is derived from a utility input
source. Unit Online is displayed on the front panel, indicating that the
incoming power is within voltage and frequency acceptance windows.
3.2.1.1 Double conversion mode
Figure
4
shows the path of electrical power through the UPS system when the
UPS is operating in the double conversion mode.
Figure 4. Path of current through the UPS in the double conversion mode
A Static
switch
1 Bypass in-
put
Main power flow
B Rectifier 2 Rectifier in-
put
Energized
C Inverter 3 Output De-energized
D Battery con-
verter
4 Battery
breaker
Trickle current
E Battery Closed Open
Three-phase AC input power is converted to DC using a multilevel converter
with IGBT devices to produce a regulated DC voltage to the inverter. The UPS
status indicated on the display is Unit Online and the UPM status is Active.
The battery converter derives its input from the regulated DC output of the
rectifier and provides regulated charge current to the battery. The battery is
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always connected to the UPS and ready to support the inverter should the utility
input become unavailable.
The inverter produces a single-phase or three-phase AC output to the critical
load. The inverter uses multilevel converter technology with IGBT devices and
pulse-width modulation (PWM) to produce a regulated and filtered AC output.
If the utility AC power is interrupted or is out of specification, the UPS
automatically switches to the battery mode to support the critical load without
interruption. When utility power returns, the UPS returns automatically to the
double conversion mode.
If the UPS becomes overloaded or unavailable, the UPS seamlessly switches to
the bypass mode and continues supplying the load through the static bypass.
The UPS automatically returns to the double conversion mode when the
abnormal condition, such as an extended time overload, is cleared and the
system operation is restored within the specified limits.
If a UPM within the UPS suffers an internal failure, the remaining UPMs
continue to support the load in the double conversion mode. The UPS is
automatically internally redundant when the UPS is not operating at full load.
However, if internal redundancy between the UPMs is not possible due to high
load, the UPS switches automatically to the bypass mode and remains in that
mode until the failure is corrected and the UPS is back in operation.
In an external parallel redundant system, each UPS can be isolated from the
system for service while the remaining UPSs support the load in the double
conversion mode.
3.2.1.2 Variable Module Management System mode
When Variable Module Management System (VMMS) mode is enabled, the load
is powered by UPMs in double conversion mode. The UPS status indicated on
the display is Unit Online VMMS and the UPM status is Active.
UPS efficiency varies according to the load level at which the UPS operates.
VMMS technology enables achieving optimised system efficiency by
automatically optimising the UPM load level. As an example, when the load is
very low, a minimum of one UPM is online. This enhances the UPS system
efficiency by several percentage points.
The remaining UPMs are ready to switch to double conversion mode
instantaneously, if the load increases. The load will remain protected by double
conversion UPS the entire time, even during and after a load step.
It is possible to configure VMMS mode to include power module redundancy at
all times, so that a number of additional redundant UPMs are always online.
When the UPMs are in ready state, the IGBT converters are constantly
powered, since the rectifier input and inverter output contactors are closed. The
DC link is also powered. Only the IGBT gate signals are suspended. The only
step needed to come out of ready state is to gate the IGBT switches. Since DC
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voltage is constantly present, the inverter is able to start instantaneously: the 2
ms transfer to double conversion is practically seamless.
3.2.1.3 Energy Saver System mode
Figure
5
shows the path of electrical power through the UPS system when the
UPS is operating in the Energy Saver System (ESS) mode.
Figure 5. Path of current through the UPS in the Energy saver System mode
A Static
switch
1 Bypass in-
put
Main power flow
B Rectifier 2 Rectifier in-
put
Energized
C Inverter 3 Output De-energized
D Battery con-
verter
4 Battery
breaker
Trickle current
E Battery Closed
Open
In the ESS mode, the UPS safely provides mains current directly to the load
when the input is within the acceptable limits by its voltage and frequency. The
UPS status indicated on the display is Unit Online ESS, and the UPM status
is Active. Surge protection and some filtering is also provided, making sure
that clean power is delivered to the load equipment. In case any disturbances
are detected in the incoming power, the UPS switches to the double conversion
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mode and continues to supply the critical load through its inverter. In case of a
complete utility outage or if the input power is outside the tolerances of the
system, the UPS transfers to the battery mode and continues to supply
conditioned, clean power to the critical load.
When operating in the ESS mode, the UPS's superior detection and control
algorithms continuously monitor the incoming power quality and allow fast
engagement of the power converters. Typical transition time to the double
conversion mode is less than 2 milliseconds, which is practically seamless.
When the power conditions are within acceptable limits, the UPS operates as a
high efficiency, energy-saving system, providing surge protection for IT
equipment and making sure that clean power is delivered to the facility. The
energy saver system increases system efficiency when supplying 20...100% of
nominal load, reducing energy losses by up to 80%.
3.2.2 Stored energy and battery mode
When running normally in the double conversion or ESS mode, the UPS
automatically transfers to supply the load from batteries or some other stored
energy source if a utility power outage occurs, or if the utility power does not
conform to the specified parameters. The UPS status indicated on the display is
On Battery, and the UPM status is Active. In the battery mode, the battery
provides emergency DC power, which is converted to regulated output power by
the inverter.
Figure
6
shows the path of electrical power through the UPS system when
operating in the battery mode.
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Figure 6. Path of current through the UPS in the battery mode
A Static
switch
1 Bypass in-
put
Main power flow
B Rectifier 2 Rectifier in-
put
Energized
C Inverter 3 Output De-energized
D Battery con-
verter
4 Battery
breaker
Trickle current
E Battery Closed Open
During a utility power failure, the rectifier no longer has an AC utility source from
which to supply the DC output current required to support the inverter. The input
relay K1 opens and the UPS output is powered from the batteries through the
inverter. As the inverter operates uninterrupted through the transition, the load
remains supported continuously without disturbance. If the UPS static bypass is
supplied from the same source as the UPS rectifier, the backfeed protection
contactor K5 also opens. The opening of K1 and K5 prevent system voltages
from bleeding backwards and re-entering the input source through the static
switch or rectifier.
If the input power fails to return or is not within the acceptance windows required
for normal operation, the battery continues discharging until a DC voltage level
is reached where the inverter output can no longer support the connected loads.
The UPS issues a Low Battery alarm to indicate that the battery voltage level is
running low. The UPS continues to discharge the batteries until the battery
voltage reaches the threshold level of the Low Battery alarm. If the bypass is
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available, the UPS transfers the load to the static bypass switch when the
Battery DCUV Trip Imminent alarm activates.
If the input power becomes available again at any time during the battery
discharge, K1 and K5 close and the UPS returns to normal operation. The UPS
also starts to recharge the batteries to restore the capacity.
3.2.3 Bypass mode
CAUTION
The critical load is not protected while the UPS is in bypass mode.
The UPS automatically switches to the bypass mode if it detects an overload,
load fault, or internal failure. The bypass source supplies the commercial AC
power to the load directly. The UPS can also be commanded to transfer to the
bypass mode manually through the display. The UPS status indicated on the
display is On Bypass.
The UPS will return from the bypass mode back to online mode, if the condition
(for example overload) that caused the transfer is cleared. If there is a condition
that will not clear by itself (for example UPS internal failure), the UPS will remain
on bypass operation.
Figure
7
shows the path of electrical power through the UPS system when
operating in the bypass mode.
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Figure 7. Path of current through the UPS in the bypass mode
A Static
switch
1 Bypass in-
put
Main power flow
B Rectifier 2 Rectifier in-
put
Energized
C Inverter 3 Output De-energized
D Battery con-
verter
4 Battery
breaker
Trickle current
E Battery Closed Open
In the bypass mode, the output of the system is provided with AC power directly
from the system input. While in this mode, the output of the system is not
protected from voltage or frequency fluctuations or power outages from the
source. Some power line filtering and transient protection is provided to the load,
but no active power conditioning or battery support is available to the output of
the system in the bypass mode.
The static bypass consists of a solid-state, silicon-controlled rectifier (SCR)
static switch (STSW) and a backfeed protection isolation device K5. The static
switch is rated as a continuous-duty device that is used anytime the inverter is
unable to support the applied load. The static switch is wired in series with the
backfeed protection. As the static switch is an electronically-controlled device, it
can be turned on immediately to pick up the load from the inverter without
interruption. The backfeed protection is normally always closed, ready to
support the static switch unless the bypass input source becomes unavailable.
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3.3 UPS features
The Eaton UPS has many features that provide cost-effective and consistently
reliable power protection. The feature descriptions provide a brief overview of
the UPS standard features.
3.3.1 Advanced Battery Management
The Advanced Battery Management technology uses sophisticated sensing
circuitry and a three-stage charging technique that extends the useful service
life of UPS batteries while optimizing the battery recharge time. ABM also
protects batteries from damage caused by high current charging and inverter
ripple currents. Charging at high currents can overheat and damage batteries.
In the
charge mode
, the batteries are recharged. Charging lasts only as long as
it takes to bring the battery system up to a predetermined float level. Once this
level is reached, the UPS battery charger enters the
float stage
and the charger
operates in the constant voltage mode.
The
rest mode
begins at the end of the charge mode; that is, after 96 hours of
float charging (user-adjustable). In the rest mode, the battery charger is
completely turned off. The battery system receives no charge current during this
rest period of approximately 28 days (adjustable). During the rest mode, the
open circuit battery voltage is monitored constantly, and battery charging is
resumed when necessary.
3.3.2 Powerware Hot Sync
The Eaton Powerware Hot Sync technology is an algorithm that eliminates the
single point of failure in a parallel system and therefore enhances system
reliability. The Hot Sync technology is incorporated in all Eaton 91PS/93PS
UPSs, and it is utilized in both multi-module internal parallel and external parallel
systems.
The Hot Sync technology enables all UPMs to operate independently in a
parallel system, even without inter-module communications. The power modules
utilizing the Hot Sync technology are completely autonomous; each module
monitors its own output independently to remain in complete synchronization
with the other modules. The UPM power modules share the load perfectly even
in changing capacity or load conditions.
The Powerware Hot Sync technology combines digital signal processing and an
advanced control algorithm to provide automatic load sharing and selective
tripping in a parallel UPS system. The load share control algorithms maintain
synchronization and load balance by constantly making minute adjustments to
variations in the output power requirements. The modules conform to demand
and are not in conflict with each other for the load. The Powerware Hot Sync
systems are capable of paralleling for both redundancy and capacity.
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3.3.3 Power Conditioner
The Power Conditioner mode is characterized by the UPS running in the double
conversion mode without batteries connected. In the Power Conditioner mode,
the UPS provides conditioned output voltage and frequency. The UPS can also
support high nonlinear loads without ITHD on the input. The UPS meets the
qualifications outlined in this product specification, except for the conditions
below.
When in the Power Conditioner mode, the UPS has the following functionality
and limitations:
1. The UPS runs in the double conversion mode.
2. Because there is no battery, loss of utility power results in the UPS losing
power and shutting down.
3. The UPS sustains up to -50% input voltage tolerance, unless the current
limit is reached.
4. If the rectifier is turned off, the UPS attempts a transfer to the bypass
mode.
5. The ESS mode is not available.
3.3.4 Frequency Converter
The Frequency Converter mode is characterized by the UPS running without the
bypass mode available. The output frequency can be configured to be different
from the standard input frequency (e.g. 60 Hz output, 50 Hz input). The UPS
can also support high nonlinear loads without iTHD on the input. The UPS
meets the qualifications outlined in this product specification, except for the
conditions below.
When in the Frequency Converter mode, the UPS has the following functionality
and limitations:
1. Operation is the same as when in the double conversion mode with no
bypass available.
2. Bypass alarms are suppressed.
3.4 Software and connectivity features
3.4.1 User interface
MiniSlot Communication Bays — there are 2 communication bays for MiniSlot
connectivity cards. MiniSlot cards are quickly installed and are hot-pluggable.
See Chapter
6
for additional information.
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3.4.2 Power Management Software
Intelligent Power software products offer tools for monitoring and managing
power devices across the network. See Chapter
6
for more information.
3.5 Options and accessories
Contact your Eaton sales representative for more information about the
available options and accessories.
3.5.1 Maintenance Bypass Switch (optional)
The Maintenance Bypass Switch (MBS) enables power to bypass and isolate
the drive train of the UPS so that it can be safely serviced or replaced without
interrupting power to critical systems. Utilization of an external MBS enables
power to completely bypass the UPS, allowing a total isolation of the UPS.
An internal Maintenance Bypass Switch is provided as a factory-installed option.
Alternatively, MBS solutions are also available in an external enclosure as
accessory items.
External Maintenance Bypass Switch Panel (accessory)
The external MBS is enclosed in its own separate, wall-mounted cabinet. The
EMBS contains a rotary switch (MBP & MIS) to change the source that supplies
the load between the UPS output and the mechanical bypass. It may
additionally include two switches: one for the rectifier inputs (RIS) and another
for bypass inputs (BIS). It may also include auxiliary contacts to report the status
of the switchgear to the UPS.
For external MBS installation instructions, see the installation instruction shipped
with the unit.
3.5.2 Field Installed UPM (accessory)
With a 91PS/93PS UPS in a 30/40 kW frame that has only one UPM installed, a
Field Installed UPM (FI-UPM) can be installed in the cabinet any time in the
future when power needs change. This enables the UPS system to grow with
the business, thus lowering the initial investment required for the system on Day
1.
For a listing of the upgradeable configurations, see Tables
3.7
and
5
.
CAUTION
Only an authorized Eaton Customer Service Engineer or other qualified
service personnel authorized by Eaton are allowed to install an FI-UPM.
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Note: Examine the cable and fuse rating before power upgrades!
3.6 Battery system
The battery system provides short-term emergency backup power to safeguard
operation during brownouts, blackouts, and other power interruptions. By
default, UPS is configured to use VRLA batteries. If other type of batteries or
other energy storage means need to be connected, consult a certified service
technician prior to proceeding with the installation.
The Eaton 91PS/93PS 8–40 kW UPS are equipped with internal batteries to
provide full load runtime of 5–60 minutes depending on the UPS rating. This
does not apply to the C-model, which has no internal batteries. In addition,
external battery cabinets can be introduced to the system to allow extended
autonomy. Internal and external batteries can be used in parallel.
For detailed battery specifications, see Chapter
9
.
3.7 Basic system configurations
UPS power rating
The maximum attainable UPS system power rating is determined by the size of
the UPS cabinet frame. The number of UPM power modules determines the
nominal power rating of the UPS. If upgradeability is required, the system static
bypass should be chosen according to the future maximum load rating, and the
number of UPMs is chosen according to the Day 1 capacity requirements.
The following UPS configurations with different static bypass sizes and number
of UPMs are possible.
Table 4: 93PS UPS configurations
Description System
power
[kW]
Power
modules
[kW]
Static
switch
[kW]
Internal battery
Single system configurations in the 93PS 20 kW frame size*
93PS-8(20)-xx 8 1*8 20 Yes/No
93PS-10(20)-xx 10 1*10 20 Yes/No
93PS-15(20)-xx 15 1*15 20 Yes/No
93PS-20(20)-xx 20 1*20 20 Yes/No
Single system configurations in the 93PS 40 kW frame size
93PS-8(40)-xx 8 1*8 40 Yes/No
93PS-8+8(40)-yy 8 8+8 40 Yes (separate)/No
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Description System
power
[kW]
Power
modules
[kW]
Static
switch
[kW]
Internal battery
93PS-10(40)-xx 10 1*10 40 Yes/No
93PS-10+10(40)-yy 10 10+10 40 Yes (separate)/No
93PS-15(40)-xx 15 1*15 40 Yes/No
93PS-15+15(40)-yy 15 15+15 40 Yes (separate)/No
93PS-20(40)-xx 20 1*20 40 Yes/No
93PS-20+20(40)-yy 20 20+20 40 Yes (separate)/No
93PS-30(40)-yy 30 2*15 40 Yes (common)/No
93PS-40(40)-yy 40 2*20 40 Yes (common)/No
*Applies to the 93PS 8-20 kW C-model as well.
xx = 15, 20 ([kW] Maximum power rating with existing hardware (1 power module))
yy = 30, 40 ([kW] Maximum power rating with existing hardware (2 power modules))
Table 5: 91PS UPS configurations
Description System
power
[kW]
Power
modules
[kW]
Static
switch
[kW]
Internal battery
Single system configurations in the 91PS 15 kW frame size*
91PS-8(15)-15 8 1*8 15 Yes/No
91PS-10(15)-15 10 1*10 15 Yes/No
91PS-15(15)-15 15 1*15 15 Yes/No
Single system configurations in the 91PS 30 kW frame size
91PS-8(30)-15 8 1*8 30 Yes/No
91PS-8+8(30)-30 8 8+8 30 Yes (separate)/No
91PS-10(30)-15 10 1*10 30 Yes/No
91PS-10+10(30)-30 10 10+10 30 Yes (separate)/No
91PS-15(30)-15 15 1*15 30 Yes/No
91PS-15+15(30)-30 15 15+15 30 Yes (separate)/No
91PS-20(30)-30 20 2*10 30 Yes (common)/No
91PS-30(30)-30 30 2*15 30 Yes (common)/No
*Applies to the 91PS 8-15 kW C-model as well.
With a 93PS UPS 40 kW frame, a single UPS frame can house a maximum of 2
UPMs, resulting in the maximum power rating of 40 kW. In addition, up to 4 UPS
frames can be connected in parallel to create even larger systems. With a 93PS
UPS 20 kW frame, a single UPS frame can house only one power module. Both
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15 kW and 20 kW UPMs are available. For 91PS, the frame sizes are 15 kW or
30 kW. Only 15 kW UPMs are available.
UPS options and accessories
The following table shows different standard and optional UPS features and the
models where they apply.
Table 6: Standard and optional UPS features
Feature 91PS/93PS 8-40 kW
Smart touch screen display for system control and monitoring Standard
SNMP web interface Standard
Internal MBS Optional
Rectifier input switch S1 Standard
Internal battery breaker CB1 Standard
Battery start Standard
Integrated backfeed protection Standard
Additional options and accessories are also available. These include different
software and connectivity options and external switchgear and power
distribution options.
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4 UPS installation plan and unpacking
Use the following basic sequence of steps to install the UPS:
1. Create an installation plan for the UPS system.
2. Prepare your site for the UPS system.
3. Inspect and unpack the UPS cabinet.
4. Unload and install the UPS cabinet and wire the system.
5. Complete the installation checklist provided in Section
4.2
.
6. Have authorized service personnel perform the preliminary operational
checks and startup.
Note: Startup and operational checks must be performed by an authorized
Eaton Customer Service Engineer or by other qualified service personnel
authorized by Eaton, or the terms specified in the Warranty (see Chapter
10
)
become void. This service is offered as a part of the sales contract for the
UPS. Contact service in advance (usually a two-week notice is required) to
reserve a preferred startup date.
4.1 Creating an installation plan
Before you install the UPS system, read and understand how these instructions
apply to the system that you are going to install. Use the procedures and
illustrations in Section
4.3
and Chapter
5
to create a logical plan for installing the
system.
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4.2 Installation checklist
Action Yes / No
All packing materials and restraints are removed from each cabinet.
Each cabinet in the UPS system is placed in its installed location.
A cabinet grounding kit / mounting kit is installed between any cabinets
that are bolted together.
All conduits and cables are properly routed to the UPS and any ancillary
cabinets.
All power cables are properly sized and terminated.
Neutral conductors are installed and bonded to ground according to the
requirements.
A ground conductor is properly installed.
Battery cables are terminated and connected to battery connectors.
Battery Shunt trip and Aux contact signal wiring is connected from the
UPS to the battery breaker.
LAN drops are installed.
All LAN connections are completed.
Air conditioning equipment is installed and operating correctly.
There is adequate workspace around the UPS and other cabinets.
Adequate lighting is provided around all the UPS equipment.
A 230 VAC service outlet is located within 7.5 meters of the UPS equip-
ment.
The Remote Emergency Power-off (REPO) device is mounted in its in-
stalled location and its wiring is terminated inside the UPS cabinet.
If EPO is used in the NC configuration, a jumper is installed on the EPO
between pins 3 and 4
(OPTIONAL) Alarm relays and signal outputs are wired appropriately.
(OPTIONAL) A remote battery disconnect control is mounted in its instal-
led location and its wiring is terminated inside the UPS and battery cabi-
net.
(OPTIONAL) Accessories are mounted in their installed locations and
their wiring is terminated inside the UPS cabinet.
Start-up and operational checks are performed by an authorized Eaton
Customer Service Engineer.
4.3 Site preparations
For the UPS system to operate at peak efficiency, the installation site must meet
the environmental parameters outlined in these instructions. If the UPS needs to
be operated at an altitude higher than 1,000 m, contact your service
representative for important information about high altitude operation. The
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operating environment must meet the height, clearance, and environmental
requirements specified.
4.3.1 Environmental and installation considerations
The UPS system installation requires a TN, TT or IT power distribution system
(the IT distribution system shall include a neutral wire).
The UPS system installation must meet the following guidelines:
• The system must be installed on a level floor suitable for computer or
electronic equipment. The floor must be suitable for heavy weight and
wheeling.
• The system must be installed in a temperature and humidity controlled
indoor area that is free of conductive contaminants.
• The cabinet can be installed in line-up-and-match or standalone
configurations.
If you do not obey these guidelines your warranty may become void.
CAUTION
Do not stack anything on top of the UPS cabinet.
Do not stack the UPS 91PS/93PS C-model cabinet on top of any other similar
cabinet(s).
If installed on a shelf, use suitable supports to prevent the UPS from tipping
or dropping.
The UPS equipment operating environment must meet the weight requirements
shown in Table
8
, and the size requirements shown in Table
7
.
Table 7: Dimensions
C-model 8-20 kW
[mm]
15/20 kW frame
[mm]
30/40 kW frame
[mm]
Shipping dimen-
sions (WxDxH) 540 x 857 x 705 540 x 857 x 1460 750 x 820 x 1975
Cabinet dimensions
(WxDxH) 335 x 750 x 645 335 x 750 x 1300 480 x 750 x 1750
Table 8: UPS cabinet weights with cardboard packaging
C-model 8-20 kW
frame
15/20 kW
frame
30/40 kW
frame
Shipping weight 98 kg 293 kg 558 kg
Installed weight 86 kg 280 kg 532 kg
Floor loading 310 kg/m21,007 kg/m21,478 kg/m2
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C-model 8-20 kW
frame
15/20 kW
frame
30/40 kW
frame
Note: Maximum number of internal batteries are included with all the models (except the
C-model, which has no internal batteries).
The UPS cabinets use forced air cooling to regulate internal component
temperature. By default, air inlets are in the front of the cabinet and outlets are
in the back. Allow clearance in front of and behind each cabinet for proper air
circulation.
The clearance required around the UPS cabinet is shown in Table
9
.
Note: This equipment is not intended for building-in, rack-mounting or for
incorporation in larger equipment.
Table 9: UPS cabinet minimum clearances
15/20 kW frame* 30/40 kW frame
From the top of the cabinet 500 mm 500 mm
From the front of the cabinet 650 mm 650 mm
From the back of the cabinet 150 mm 250 mm
From the side of the cabinet 0 mm 0 mm
* Applies to the 20 kW C-model frame as well.
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• X = clearance at the back of the UPS cabinet
• Y = clearance at the top of the UPS cabinet
Figure 8. UPS cabinet clearances.
The basic environmental requirements for the operation of the UPS system are
as follows:
• Ambient temperature range: from +0 to +40 °C
• Recommended operating range: from +20 to +25 °C
• Maximum relative humidity: 95%, non-condensing
It is required that ventilation of the UPS room is arranged. Sufficient amount of
air cooling is needed to keep the maximum room temperature rise at the desired
level:
• Temperature rise of +5 °C maximum requires the airflow of 600 m3 per 1 kW
of losses.
• Temperature rise of +10 °C maximum requires the airflow of 300 m3 per 1
kW of losses.
An ambient temperature from +20 °C to +25 °C is recommended to achieve a
long life of the UPS and batteries. The cooling air that enters the UPS must not
exceed +40 °C. Avoid high ambient temperature, moisture, and humidity.
For ventilation requirements, see 93PS heat rejection in Table
10
.
Table 10: 93PS Air conditioning or ventilation requirements during full load operation
Heat rejection
(BTU/h x 1,000)
Heat rejection
(kW)
Air flow
(l/s)
8 kW 1.17 0.3 70
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Heat rejection
(BTU/h x 1,000)
Heat rejection
(kW)
Air flow
(l/s)
10 kW 1.46 0.4 70
15 kW 2.19 0.6 70
20 kW 2.92 0.9 100
30 kW 4.38 1.3 140
40 kW 5.84 1.7 200
Table 11: 91PS Air conditioning or ventilation requirements during full load operation
Heat rejection
(BTU/h x 1,000)
Heat rejection
(kW)
Air flow
(l/s)
8 kW 1.4 0.4 70
10 kW 1.7 0.5 70
15 kW 2.7 0.8 70
20 kW 3.1 0.9 140
30 kW 4.8 1.4 140
Battery locations and enclosures must be ventilated to maintain the hydrogen
concentration below the 4%vol safety limit. Adequate air ventilation must be
provided to locations where the UPS and batteries are located. For the 15/20kW
frame with internal batteries, the minimum air flow is 3 m3/hour and the
minimum free area of opening for inlet and outlet is 84 cm2 when natural
ventilation is used. For the 30/40 kW frame with internal batteries, the minimum
air flow is 6 m3/hour and the minimum free area of opening for inlet and outlet is
168 cm2 when natural ventilation is used. For larger batteries, the ventilation air
flow must be recalculated.
For the dimensions of the 91PS/93PS UPS cabinets, see Figure
9
.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 38 (117)
Figure 9. The dimensions of the Eaton 91PS/93PS UPS frames
Cabinet A in the illustration is the 91PS/93PS C-model.
4.3.2 UPS system power wiring preparations
Note: If you are installing a maintenance bypass, provide one of the following:
- a minimum of 2 separate feeds with upstream feeder breakers
- a single feed with 2 upstream feeder breakers: one for the UPS or rectifier
input breaker and one for the maintenance bypass input.
Do not use a single feed or a single feeder breaker to supply
- the maintenance bypass and the UPS, or
- the maintenance bypass and the rectifier input breaker.
If a bypass input breaker is installed in the maintenance bypass and a single-
feed UPS is being installed, a single feed to the maintenance bypass is
acceptable for supplying both the UPS and the bypass.
An additional single feed kit (P-103002165 KIT 93PS-20 SINGLE FEED) is
available for the 93PS 8–20 kW cabinet. Maximum conductor cross section of
the single feed is 35 mm2.
WARNING
Do not install units with three-phase input and single-phase output with a
single feed for rectifier (three-phase) input and bypass (single-phase) input.
When you plan and perform the installation, read and understand the following
notes:
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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• Refer to the national and local electrical codes for acceptable external wiring
practices.
• To allow for future kVA upgrades (software and/or hardware), consider using
conductors that are sized for the full bypass rating of the UPS.
• Material and labor for external wiring requirements must be provided by
designated personnel.
• For external wiring, use copper cable rated for 70 °C at minimum. See the
appropriate information in Table
12
. Cable sizes are based on using the
specified breakers.
• If cables are run in an ambient temperature greater than 30 °C, higher
temperature cable and/or larger size cable may be necessary.
• The bypass feed into 93PS uses four wires. The bypass feed into 91PS uses
two wires. The rectifier feed uses three or four wires. The phases must be
symmetrical about ground (from a Wye source) for proper equipment
operation.
• The rectifier needs a neutral line from the supply that feeds the rectifier. In
91PS this neutral is connected to the bypass neutral input terminal with a
wire suitable for the bypass rating of the unit.
• A readily accessible disconnect device must be incorporated in all fixed input
wiring.
WARNING
Do not disconnect the bypass neutral without disconnecting the bypass
phases at the same time.
Table 12: Minimum recommended multi-core cable and fuse sizes for rectifier and bypass
input and UPS output cables (3-phase input, 3-phase output models)
93PS UPS rating (kW) 8 10 15 20 30 40
Cable [mm2]* 4*2.5 4*4 4*10 4*10 4*16 4*25
Rectifier fuse [A] 20 20 32 40 63 80
Bypass fuse [A] 20 20 32 40 63 80
PE cable [mm2]1*6 1*6 1*10 1*10 1*16 1*16
Maximum conductor cross
section
20 kW frame and 20 kW C-model: solid/stranded wire 16
mm2, stranded wire with ferrule: 10 mm2
40 kW frame: solid wire: 70 mm2, stranded wire with ferrule:
50 mm2
* Minimum recommended
Table 13: Minimum recommended multi-core cable and fuse sizes for rectifier and bypass
input and UPS output cables (3-phase input, 1-phase output models)
91PS UPS rating (kW) 8 10 15 20 30
Rectifier cable [mm2]* 2,5 4 10 10 16
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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91PS UPS rating (kW) 8 10 15 20 30
Rectifier fuse [A] 20 20 32 40 63
Bypass, output cable [mm2]10 16 25 35 70
Bypass fuse [A] 50 63 80 100 160
PE cable [mm2]10 16 16 16 35
Maximum conductor cross
section
15 kW frame and 15 kW C-model: solid/stranded wire
16 mm2, stranded wire with ferrule: 10 mm2
Bypass/output: solid wire: 70 mm2, stranded wire with
ferrule: 50 mm2
30 kW frame: Rectifier: solid wire 70 mm2, stranded
wire with ferrule: 50 mm2
Bypass/output: solid wire 95 mm2, stranded wire with
ferrule: 95mm2
CAUTION
Make sure that prospective short-circuit current resulting at the input terminals
of the UPS is equal or less than conditional short-circuit current declared on
the ratings label of the UPS.
Table 14: Minimum recommended cable and fuse sizes for external battery bank
UPS rating (kW) 8 10 15 20 30 40
Pos. & neg. line [mm2]* 1*16 1*16 1*16 1*16 1*35 1*35
Battery fuse [A] 63 63 63 63 160 160
PE cable [mm2]1*16 1*16 1*16 1*16 1*16 1*16
Maximum conductor cross
section
20 kW frame, 20 kW C-model and 40 kW frame with sepa-
rate battery: solid wire: 25 mm2, stranded wire with ferrule:
16 mm2
40 kW frame with common battery: solid wire: 90 mm2,
stranded wire with ferrule: 70 mm2
* Minimum recommended
Note: UPS power upgrading is possible only if the sizing of the external
cables is sufficient. Alternatively, the external cabling must be upgraded as
well. Fuses are of the type gG.
Cable sizing is based on the standard IEC 60364-5-52 table B.52.2 and IEC
60364-5-54 table B.54.2. Sizing is for 70 ºC rated copper cables.
When you connect external batteries to 91PS/93PS UPS, Eaton recommends
that you use the following NZM series molded case circuit breakers.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 41 (117)
Type Article No Nominal battery
voltage
12V VRLA
Blocks
With 91PS/
93PS 8-20
kW
NZM1–A63 259083
(P-122000209)
336–432 V 28–36
NZMH2–A63 259097 444–480 V 37–40
With 93PS
30-40 kW
NZM1–A160 281234
(P-122000199)
336–432 V 28–36
NZMN2-A160 259092 444–480 V 37–40
With 91PS
20-30 kW
NZMN1-A125 259086 336-432 V 28-36
NZMN2-A125 259091 444-480 V 37-40
NOTE: Maximum string length for the 91PS/93PS C-model is 36 blocks, 216 cells (432
V)
Note: Contact your Eaton sales representative for more information about the
circuit breakers, or if you need help choosing the right model for your UPS
system.
For NZM1 series breakers, use the following 24 V shunt release with early-make
auxiliary contact together with the above circuit breakers.
Type Article No
NZM1-XAHIVL24AC/DC 259792
(P-152001062)
Note: In 93PS UPS C-model, the internal and external circuit breakers
function in cooperation with each other.
Table 15: 93PS rated and maximum currents for rated power and voltage (3-phase input,
3-phase output models)
Rectifier input UPS output / bypass Battery
Rated
power
[kW]
Rated
voltage
[V]
Rated
current
[A]
Maximum
current
[A]
Rated
current
[A]
Maximum
current
[A]
Rated
current
[A]
Maximum
current
[A]
8380 13 15 12 18 22 26
400 12 14 12 17 22 26
415 12 14 11 16 22 26
10 380 16 19 15 22 27 33
400 15 18 15 21 27 33
415 15 17 14 20 27 33
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Rectifier input UPS output / bypass Battery
Rated
power
[kW]
Rated
voltage
[V]
Rated
current
[A]
Maximum
current
[A]
Rated
current
[A]
Maximum
current
[A]
Rated
current
[A]
Maximum
current
[A]
15 380 24 28 23 34 41 49
400 23 27 22 32 41 49
415 22 26 21 31 41 49
20 380 32 37 31 45 55 66
400 30 36 29 42 55 66
415 29 34 28 41 55 66
30 380 48 56 46 67 82 98
400 45 53 44 64 82 98
415 44 51 43 61 82 98
40 380 64 75 62 89 110 131
400 60 71 59 85 110 131
415 58 69 57 82 110 131
Notes:
1. Maximum rectifier current calculated at the -15% voltage tolerance and 102% con-
tinuous overload.
2. Maximum output/bypass current calculated at continuous 125% overload and at
-15% voltage tolerance.
3. Maximum battery current calculated at rated load and 1.67 V cell voltage for the
default 32 block string length.
Table 16: 91PS rated and maximum currents for rated power and voltage (3-phase input,
1-phase output models)
Rectifier input UPS out-
put / bypass
Battery
Rated pow-
er
[kW]
Rated voltage
[V]
Rated cur-
rent
[A]
Maximum cur-
rent
[A]
Rated cur-
rent
[A]
Rated cur-
rent
[A]
8380 18 18 36 22
400 17 18 35 22
415 17 18 33 22
10 380 21 22 45 28
400 20 22 43 28
415 19 22 42 28
15 380 29 29 68 42
400 28 29 65 42
415 27 29 63 42
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Rectifier input UPS out-
put / bypass
Battery
Rated pow-
er
[kW]
Rated voltage
[V]
Rated cur-
rent
[A]
Maximum cur-
rent
[A]
Rated cur-
rent
[A]
Rated cur-
rent
[A]
20 380 38 38 91 55
400 36 38 87 55
415 35 38 83 55
30 380 57 57 136 83
400 54 57 130 83
415 52 57 125 83
Notes:
1. Maximum rectifier current calculated at the minimum voltage tolerance.
Figure 10. Power cable terminals in the 91PS 15 kW frame
X1 Rectifier input X4/- External battery -
X2 Bypass input TB20 External battery trip and aux sig-
nal (N.O.)
X3 UPS output PE Protective earth
X4/+ External battery +
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Figure 11. Power cable terminals in the 93PS 20 kW frame
X1 Rectifier input X4/- External battery -
X2 Bypass input TB20 External battery trip and aux sig-
nal (N.O.)
X3 UPS output PE Protective earth
X4/+ External battery +
A
Connection information sticker
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Figure 12. Power cable terminals in the 91PS 30 kW frame with a common battery
X1 Rectifier input X4/- External battery -
X2 Bypass input TB20 External battery trip and aux sig-
nal (N.O.)
X3 UPS output PE Protective earth
X4/+ External battery +
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Figure 13. Power cable terminals in the 91PS 30 kW frame with a separate battery
(option)
X1 Rectifier input X4/2/- External battery - for UPM1
X2 Bypass input X4/4/- External battery - for UPM2
X3 UPS output TB20 External battery trip and aux sig-
nal (N.O.) for UPM1
X4/1/+ External battery + for UPM1 TB21 External battery trip and aux sig-
nal (N.O.)
X4/3/+ External battery + for UPM2 PE Protective earth
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Figure 14. Power cable terminals in the 93PS 40 kW frame with a common battery
X1 Rectifier input X4/- External battery -
X2 Bypass input TB20 External battery trip and aux sig-
nal (N.O.)
X3 UPS output PE Protective earth
X4/+ External battery +
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
© Eaton Corporation plc 2018. All rights reserved. Revision: 005 Document ID: P-164000493 48 (117)
Figure 15. Power cable terminals in the 93PS 40 kW frame with a separate battery
(option)
X1 Rectifier input X4/2/- External battery - for UPM1
X2 Bypass input X4/4/- External battery - for UPM2
X3 UPS output TB20 External battery trip and aux sig-
nal (N.O.) for UPM1
X4/1/+ External battery + for UPM1 TB21 External battery trip and aux sig-
nal (N.O.) for UPM2
X4/3/+ External battery + for UPM2 PE Protective earth
Note: External overcurrent protection is not provided by this product, but is
required by codes. Refer to Table
12
for wiring requirements. If a lockable
output disconnect is required, it must be supplied by the user.
Table 17: UPS power cable terminal torques
UPS rating Function Tightening torque [Nm]
93PS 8-20 kW X1, X2, X3: L1, L2, L3, N 1.6
X4: battery +/- 3.0
PE (ground) 10 Nm for 16-35 mm2 wire
6 Nm for 4-10 mm 2 wire
4 Nm for 2.5 mm 2 wire
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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UPS rating Function Tightening torque [Nm]
93PS 8-40 kW X1, X2, X3: L1, L2, L3, N 6.0
X4: battery +/- 6.0
PE (ground) 10 Nm for 16-35 mm2 wire
6 Nm for 4-10 mm 2 wire
4 Nm for 2.5 mm 2 wire
91PS 8-15 kW X1 1.6
X2, X3 7
X4 3
PE (ground) 10 Nm for 16-35 mm2 wire
6 Nm for 4-10 mm 2 wire
4 Nm for 2.5 mm 2 wire
91PS 8-30 kW X1 6
X2, X3 17
X4 6
PE (ground) 7 Nm (X1, X2, X3)
3.5 Nm (X4)
CAUTION
To reduce the risk of a fire, connect only to a circuit that is provided with
maximum input circuit breaker current ratings from Table
15
in accordance
with the national and local installation rules.
The line-to-line unbalanced output capability of the UPS is limited only by the full
load per phase current values for AC output to critical load shown in Table
15
.
The recommended line-to-line load unbalance is 50% or less.
Source protection for the AC input to bypass must suit the characteristics of the
load and take into account effects such as inrush or starting current.
Bypass input and output overcurrent protection and bypass, output and
accessory disconnect switches must be provided by the user.
4.4 Unpack and unload the UPS
Before you start to unpack and unload the UPS, look at the TipNTell indicator on
the package surface. When you have unpacked and unloaded the UPS, look at
the DropNTell indicator on the back of the UPS. If the equipment has been
correctly transported in the upright position, the indicators should be intact. If the
TipNTell indicator arrow has turned all blue or the arrow head(s) of the
DropNTell are black, contact the appropriate parties to report inappropriate
transportation.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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WARNING
The UPS cabinet is heavy. If the unpacking instructions are not obeyed, the
cabinet can tip over and cause serious injury.
Do not tilt the UPS cabinet more than 10 degrees from the vertical or the
cabinet can tip over.
For transportation purposes, the UPS cabinet is bolted onto a wooden pallet. To
remove the pallet, do the following:
1. Before you unload the cabinet
from the pallet, use a forklift or
other material handling
equipment to move the cabinet
to the installation area. Insert
the forks of the forklift between
the skids on the bottom of the
unit.
2. Make a visual inspection and
examine that there are no signs
of shipping damages. Examine
the TipNTell and refer to the
instructions next to the indicator
on the package. The DropNTell
indicator is located on the rear
panel of the UPS and can be
verified after the next step.
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3. Open the UPS package. The
roof of the package is used as a
ramp for moving the UPS off the
pallet.
4. Place the ramp on the floor and
attach it to the pallet with nails
or screws so that it can be
safely used for wheeling the
UPS off the pallet.
5. If the leveling feet are not fully
retracted, turn them until they
are retracted.
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6. Open the UPS front door.
7. Remove the bolts that fasten
the shipping brackets to the
UPS cabinet and to the pallet.
8. Remove the shipping brackets.
The brackets may differ from
what is shown in the illustration.
Note: After you have removed the shipping brackets, move the unit
immediately away from the pallet.
After you have removed the shipping brackets and retracted the leveling feet,
do not use a forklift to move the unit while it is still on the pallet. Note that the
UPS cabinet is heavy and there are casters under the cabinet.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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9. Slowly roll the cabinet toward
the ramp edge. Be careful not to
push the cabinet too much or
too fast since it may cause the
cabinet to tip over. Note that the
cabinet is heavy. Make sure that
you have enough manpower to
handle and support the unit
while rolling it off the pallet.
10. Roll the cabinet to its final
installation location.
11. To secure the UPS cabinet in
position, lower the leveling feet
until the cabinet is not resting on
the casters and the cabinet is
level.
With the 15/20 kw frame,
reattach the shipping brackets
to the UPS cabinet to provide
extra support. There are 2
options for positioning the
shipping brackets: on both sides
of the unit or on the front and
rear of the unit.
Note: If you remove the cabinet from its original installation location and
transfer it to a new location on a pallet, lower the leveling feet until the cabinet
is not resting on the casters. In addition, attach the shipping brackets to the
cabinet and the pallet.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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5 UPS system installation
The operator has to supply the wiring to connect the UPS to the local power
source. The installation of the UPS must be made by a locally qualified
electrician. The electrical installation procedure is described in the following
section. The installation inspection and the initial start-up of the UPS and
installing an extra battery cabinet must be carried out by an authorized Eaton
Customer Service Engineer or by other qualified service personnel authorized
by Eaton.
CAUTION
To avoid physical injury or death, or damage to the UPS or the load
equipment, follow these instructions during the UPS system installation.
CAUTION
In case of condensed moisture inside the UPS cabinet, dry the cabinet with a
blower before starting up the system.
5.1 Steps to install the UPS
Power and control wiring are routed through the rear of the cabinet with
connections made to easily accessible terminals, see Figure
16
and Figure
17
.
To install and connect the power cabling of the external battery to the UPS, see
Section
5.2
.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Figure 16. Gland plate and connector locations in the 15-20 kW standard and C-model
frames
Figure 17. Gland plate and connector locations in the 30-40 kW frame
1Connectors 2Gland plate
1. To gain access to the terminal
blocks, remove the screws
securing the gland plate at the
back of the UPS.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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2. Install suitable cable glands into the gland plate.
3. Route the cables through the glands.
4. Connect the cables to the respective terminal blocks, see Figures in
section
4.3.2
.
5. Route the communication
cables to the front of the unit
through the cable clips at the
back of the unit and through the
oval hole at the top.
6. Connect the communication cables to the respective terminals and
peripherals. For detailed information, see Figures
26
and
27
and
Sections
5.4
and
5.5
.
7. Assemble the internal batteries
into the battery trays. Connect
the battery blocks in series
within the battery tray. Only use
cables specified by Eaton. Note
that the battery trays may differ
from the illustration.
8. Slide the internal battery trays
into place and mount the locking
brackets.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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9. Connect the internal batteries.
5.2 Battery system installation
DANGER
This UPS may have internal batteries. The batteries are designed to deliver a
large amount of energy and an incorrect connection may lead to a short
circuit and cause serious injuries to the personnel or damages to the
equipment. In order to avoid damages to the equipment or injuries to
personnel, only commissioning personnel are allowed to perform the
connection of these batteries.
Note: The 91PS/93PS UPS C-model does not have internal batteries. In the
C-model, the internal battery breaker CB1 is used for disconnecting external
batteries from the UPS power module. See Section
5.3
for instructions on
how to install an external battery cabinet.
If you are installing a customer-supplied battery system, install the battery
system according to the battery and battery system manufacturer’s instructions
and all the applicable national codes and regulations. Only qualified personnel
may install the battery system. Battery cables must be protected against current
and thermal overload, that is, the battery system must include proper fuses or
breaker with protection function. Ground the external battery cabinet to the UPS.
The default battery settings of the UPS are for 12 V VRLA batteries. If you need
to use any other type of batteries, contact your Eaton representative. For the
battery specification, see Section
9.5
.
5.2.1 Battery trip wiring
The 91PS/93PS UPS units are always equipped with an internal battery
breaker, which affects only the UPS internal batteries. The external battery
breaker is a crucial part of the external battery cabinet or rack and must be
placed in it. With the external battery breaker, signal cabling is important.
Both internal and external battery breakers can be tripped (switched off) by
energizing its shunt trip coil. The shunt trip coils of external battery breakers are
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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energized (controlled) through connectors TB20 and TB21 (TB21 available only
in the separate battery 30/40 kW frame). The voltage of the shunt trip coil is 24
Vdc.
Figure 18. Battery trip wiring, TB20
Figure 19. Battery trip wiring, TB21
AExternal battery breaker 3Pin 3, AUX contact
1Pin 1, shunt trip coil + 4Pin 4, AUX contact return
2Pin 2, shunt trip coil -
5.3 Installing UPS external battery cabinet and battery
power cabling
For the 91PS/93PS, there are two different battery cabinets: EBC-A and EBC-B.
The UPSs use 32 battery blocks per string.
CAUTION
If you connect the C-model 91PS/93PS UPS to an external battery cabinet,
note that you have to install supplementary fuses or a supplementary breaker
in addition to the internal battery breaker to ensure safe operation.
Note: Do not connect battery strings with different battery quantity and voltage
in parallel.
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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Power and control wiring for the EBC-A and EBC-B cabinets are supplied with
the cabinets. The battery cabinet can be located freely of the UPS cabinet. All
the wiring goes through the back wall of the UPS cabinet.
For instructions on how to install the external battery cabinet and battery power
cabling, see the instruction manual provided with the external battery cabinet.
Earth the external battery cabinet / customer-supplied battery system to the PE
terminal 16 shown in the Figures in section
4.3.2
.
Note: If batteries are wired outside the cabinets, obey the installation
instructions given in section
4.3.2
. See Table
10
and
11
for the recommended
cable and fuse sizes.
5.4 Installing a remote EPO switch
A remote EPO switch can be used in case of an emergency to shut down the
UPS and remove power to the critical load from a location away from where the
UPS is installed.
EPO is connected to the UPS's top front panel, on connector EPO. Figure
20
shows the NO and NC connections of the EPO switch.
EPO connector (front view):
Figure 20. Connections of the EPO switch
ANormally open BNormally closed
Table 18: Remote EPO wire terminations
From remote
EPO switch
To user interface ter-
minal block EPO in
UPS cabinet
Remarks
NO 3-4
NC 1-2 Wire jumper between 3-4 must be installed for
proper functions
Eaton 91PS/93PS UPS 8–40 kW User's and installation guide
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5.5 Installing interface connections
91PS/93PS UPS contains a total of 5 signal input connectors for operators
which can be used for giving remote control commands to the UPS. User
interface connector TB1 can be used for these purposes. Each input is a dry
relay contact input and requires two-wire signaling. None of the inputs are pre-
programmed but need to be separately programmed by qualified service
personnel.
When you use an external battery system (either the original 91PS/93PS battery
cabinet or a customer-sourced battery cabinet/rack), it is recommended to
connect the external signaling wiring for the battery breaker.
One general alarm relay output is also on the front panel. This output is either
normally open (NO) or normally closed (NC). The polarity selection is made with
a wiring connection. By default, the general alarm relay activates when a system
alarm is active, that is, any
ALARM
condition is active in the system.
Alternatively, it can be activated with any particular event, but this must be
programmed separately by qualified service personnel. The alarm relay is
designed for signal level (ELV or SELV) voltages only, not for utility use. For
higher signaling circuit voltage requirements, please use an industrial relay
adapter in the MiniSlot.
5.5.1 Installing customer input signals interface
These inputs are located behind the UPS door, in the top section of the UPS.
See Figures
26
and
27
for the connector locations.
Tie points with strain relief for the communication cables are located on the right
and left side of the cable conduit.
Signal inputs can be configured to different functions. Normally these functions
are either informative or functional (for example, a remote “Go to bypass”
command).
5.5.2 Battery breaker wiring interface
When using the original accessory battery cabinet from the manufacturer, the
battery breaker interface wiring is provided with the cabinet. Connecting it
requires only routing the wires from the cabinet to terminal TB20 (and TB21). In
15/20 kW frame the connector for the battery circuit breaker monitoring signal
and battery circuit breaker trip signal is on the left side of the power cabling.
When using a third-party battery system, the breaker must be equipped with
auxiliary signal and should have a 24 V shunt trip for remote opening of the
breaker, when needed.
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Wire entry for the battery breaker signal wiring is located in the middle of the
UPS cabinet. Punch holes are located on the left or right side panel, back wall or
bottom plate.
See Section
5.2.1
for installation instructions.
5.5.3 Relay output interface connections
The general alarm relay is a dry relay signal output. The relay can be used for
informing the operators about UPS alarm conditions, for example through a
building management system. By default, the relay is configured to activate
when the UPS general alarm is active, that is, any event when the
ALARM
status is active. The relay can also be configured to activate by some other
event, but this needs to be done by authorized service personnel. The relay
rating is 30 V AC or DC, 5 A.
Relay signal wiring can be installed only through the signal cabling canal, from
back to front, in the top section of the UPS.
Additional relay outputs are available with mini-slot cards. Relay outputs can be
configured to be activated by various events. Configuration can be done by an
authorized Eaton Customer Service Engineer or by other qualified service
personnel authorized by Eaton.
5.5.4 Industrial Relay Card interface connections
Relays K1 through K5 are identical in function. Each output contact function can
be assigned by the user. The UPS information may also be configurable.
To install the INDRELAY-MS:
1. Check that the ancillary equipment system is turned off and all the power
sources are removed. Refer to the appropriate operation manual of any
ancillary equipment for shutdown instructions.
2. Install wiring from the IRC to the monitoring equipment using appropriate
conduits through the cable exit opening in the IRC.
3. Connect wiring between the IRC terminal blocks and the monitoring
equipment using terminations. Connect one wire to COM (Common) and
another to either NC or NO to select the Normally Open or Normally Closed
option.
4. Install the INDRELAY-MS into an open MiniSlot communication bay in the
UPS cabinet.
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Figure 21. Industrial Relay Card INDRELAY-MS
5.5.5 MiniSlot interface connections
For MiniSlot accessories and communication devices selection, see Chapter
6
.
For installation and setup of a MiniSlot card, please contact your Eaton
representative.
To install wiring to the connections:
1. If not already installed, install the LAN drops.
2. Open the front door of the UPS.
3. To remove the MiniSlot cover plate, remove the 2 screws securing the
plate.
4. To install the MiniSlot communication device, push it all the way in.
5. Secure the MiniSlot communication device with 2 screws.
6. Route and install the LAN and other cables to the appropriate MiniSlot
cards. The cable route is through the signal cable canal in the top section
of the UPS.
7. For operator instructions, refer to the manual supplied with the MiniSlot
card.
8. When all the wiring is completed, close the front door and secure it with the
latch.
5.5.6 Installing signal interface connections in a parallel system
The installation of the signal interface connections in a parallel system is done
by following the aforementioned instructors. The signal polarity must be taken
into account when putting signal inputs and EPO wiring in parallel. Signal inputs
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can be paralleled between the units, that is, the same contact can be used for
several units’ signal input signaling. This concerns also the EPO signal.
5.6 Wiring parallel 91PS/93PS UPS systems
The outputs of multiple UPS systems can be connected in parallel. Up to 4 units
can be paralleled. The UPS static bypass power rating needs to be identical
among all the paralleled units. However, paralleled UPS cabinets can be housed
with different number of UPM power modules.
The outputs are paralleled to increase the load capacity of the power system
and for redundancy. The system is paralleled for (N+1) redundancy as long as
there is always one or more UPS online than required to support the load. The
system is paralleled for capacity if all UPSs in a system are required to support
the load.
Communication between the UPSs is required for system metering and mode
control. The system level communication and control are accomplished using a
Controller Area Network (CAN). A pull-chain signal in each UPS, connected to
the other UPSs in parallel and tied to the bypass status relay in each UPS, is
used for a secondary communication path. This arrangement ensures bypass
control even if the CAN bus is lost.
WARNING
Do not connect units equipped with an internal Maintenance Bypass Switch
(MBS) or internal transformers in parallel.
5.6.1 Power wiring overview
See Section
4.3.2
for the recommended cable and external fuse sizes and
installation practices.
Input feed
The input feed is defined as the power source connected to the UPS rectifier.
The feed to all UPS’s inputs must be derived from the same source.
Bypass feed
The bypass feed is defined as the power source connected to the UPS bypass.
The feed to all UPS’s bypass must be derived from the same source. The
shortest length of power wire from the source to the UPS must be a minimum of
95% of the length of the longest wire.
Output
The neutrals of all the UPSs must be connected. The shortest length of wire
from the source to the UPS must be a minimum of 95% of the length of the
longest wire. The measurement is with respect to where the UPS’s outputs are
tied.
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Dual source
The input feed and bypass feed may be separate sources. The sources must
share a common neutral.
Battery connection
A separate battery shall be connected to each UPS, and the battery capacity for
each UPS must be identical. If a common battery for multiple UPS frames is
needed, contact Eaton Technical Support.
MOBs
Module Output Breakers (MOBs) allow the output of an UPS to be disconnected
from other UPSs and the system load for maintenance and service. Design
considerations assume that each UPS has a Module Output Breaker (MOB).
The breaker should also disconnect the neutral for improved safety during
maintenance.
The MOB must have a Form “C” auxiliary contact. The N.C contact is connected
to the corresponding UPS’s input used for signal input. The N.O. contact is used
to disconnect the bypass pull-chain when the MOB is open. Figure
22
shows the
principles of paralleled UPS systems including MOBs and outputs from UPSs.
MOB override
Users without MOBs installed can simply leave the MOB signal input disabled.
The user should be aware that systems without MOB have limited maintenance
capability.
Parallel system cabling
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Figure 22. Principle of paralleled UPS systems
A Bypass inputs to UPSs 1 UPS 1 7 Battery
B Outputs from UPSs 2 UPS 2 8 Battery
C Load 3 UPS 3 9 MOB1
4 UPS 4 10 MOB2
5 Battery 11 MOB3
6 Battery 12 MOB4
The required parallel system wiring length must be equal to ensure
approximately equal current sharing when in the bypass mode.
For proper operation, the following must be true: 1A+1B=2A+2B=3A+3B=4A
+4B.
Any differences in wire length result in decreased capacity and improper
operation of the UPS system while in the bypass mode.
5.6.2 Control signals overview
2 controls signals (External CAN Network, Bypass Pull-Chain) are required for
external paralleling. Both of these control signals are fault-tolerant and alarmed
when disconnected.
External CAN (ECAN)
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ECAN provides means for communication between the UPS’s in a parallel
system. When this network fails, the system continues to share load and protect
the load.
Bypass Pull-Chain
Bypass Pull-Chain is an open collector signal that goes low when the bypass
static switch of any UPS is online. When External CAN (ECAN) is down, the
pull-chain is low and the UPS is online, the UPS locks to and transfers to the
bypass mode. Service can manually short this signal in some rare failure modes
to force a system transfer to bypass.
Signal Inputs Actions
Each UPS has a maximum of 7 signal inputs, 5 native and one in each MiniSlot
when using a suitable connectivity device. These inputs can be configured with
action items. The following action items affect all the UPSs in the system. When
an action item is active on a UPS and the MOB is closed, the action item is
transmitted on the ECAN to all the UPSs.
Wiring the EPO switch in parallel
It is recommended to use separate EPO circuits for each parallel unit.
5.6.3 Installing parallel control wiring
1. During the installation, follow all the safety instructions given in this
document.
2. Terminal blocks TB6, TB7 and TB8 are for external parallel control signals
(see Figure
26
and Figure
27
).
3. The Phoenix Contact FRONT-MSTB 2,5/2-STF-5,08 and 2,6/4-SFT-5,08
plug components are used for cable wiring termination.
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Figure 23. Simplified CAN and Pull-Chain wiring for parallel UPS system
A UPS 1 1 CAN
B UPS 2 2 Pull chain
C UPS 3 (if installed)
D UPS 4 (if installed)
Note: This drawing is for distributed bypass wiring purposes and it is not a
floor layout plan. UPSs can be placed in any physical order.
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Figure 24. CAN and Pull-Chain wiring for parallel UPS with MOBs
Figure 25. CAN and Pull-Chain wiring for parallel UPS without MOBs
AExternal parallel connectors TB6–8 6TB7:1: Earth
1TB6:2: Pull chain 7TB8:1: CAN Termination 2
2TB6:1: Pull chain RTN 8TB8:2: CAN Termination 1
3TB7:4: CAN High *) Terminate the first and last UPS
4TB7:3: CAN Low with a jumper.
5TB7:2: CAN GND **) Connect the shield on one end only.
Note: NC and NO designations on MOB AUX contacts are defined with the
breaker in the OFF (open) position. If the MOB contacts have pigtail leads,
use the same wire gauge to connect to the UPS and use the correct crimp
connections for the wire gauge. External CAN connections between the UPS
cabinets require shielded twisted pair wire. Use twisted pair wiring between
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the UPS and MOB AUX contacts. Always confirm contact operation prior to
wiring.
5.7 UPS system interface wiring preparation
Control wiring for features and options should be connected at the user interface
terminal blocks located on top front of the UPS, behind the door.
Note: Do not connect relay contacts directly to the mains-related circuits.
Reinforced insulation to the mains is required.
When you are planning and performing the installation, make sure you
understand the following notes:
• All the interface wiring is provided by the operator.
• When installing internal interface wiring to MiniSlot terminals, route the wiring
through the internal opening in the MiniSlot communication bay.
• All signal inputs or remote features require an isolated normally-open
contact or switch (rated at 24 VDC, 20 mA minimum) connected between the
alarm input and the common terminal. All control wiring and relay and switch
contacts are supplied by the operator. Use twisted-pair wires for each alarm
input and common.
• The signal inputs can be programmed to display the alarm's functional
name.
• LAN drops for use with MiniSlot cards are provided by facility planners or the
operator.
• The UPS Battery Aux and 24 VDC Shunt Trip signal wiring from the UPS
must be connected to the DC source disconnect device. See Figure
18
.
• Battery Aux and 24 VDC Shunt Trip wiring must be a minimum of 1.5 mm2.
• The Remote EPO feature opens all switchgear in the UPS cabinet and
isolates power from your critical load. Local electrical codes may also require
tripping upstream protective devices to the UPS.
• The Remote EPO switch must be a dedicated switch that is not tied to any
other circuits.
• If the normally-closed (NC) Remote EPO contact is used, a jumper wire must
be connected between pins 3 and 4 on connector EPO.
• Remote EPO wiring should be a minimum of 0.75 mm2 and a maximum of
2.5 mm2.
• The distance between the Remote EPO and the UPS cannot exceed 150
meters.
• Alarm relay contacts have a maximum current rating of 5 A and a switched
voltage rating of 30 VAC (RMS) and 30 VDC.
• Alarm relay wiring must be a minimum of 0.75 mm2.
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6 Communication interfaces
This section describes the communication features of the Eaton 91PS/93PS
UPS.
CAUTION
All the communication interfaces are SELV circuits. When connecting to other
equipment, make sure that you maintain this characteristic.
The UPS has the following communication interfaces:
1. MiniSlot 1
2. MiniSlot 2
3. USB device (connection to computer)
4. Communication cable conduit
5. Emergency Power Off (EPO)
6. Relay output
7. USB host (connection to accessories)
8. Signal inputs
9. RS-232 port for service
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Figure 26. Communication interfaces in the 15/20 kW standard and C-model frames
Figure 27. Communication interfaces in the 30/40 kW frame
1TB11, not used 9MiniSlot 1
2TB10, not used 10 TB1, signal input 1-5
3TB9, not used 11 TB2, not used
4TB8, external CAN termination 12 TB3, not used
5TB7, external CAN 13 Serial COM port RS-232
6TB6, pull chain bus 14 MiniSlot 2
7USB1, USB host (connection to
accessories)
15 TB4, EPO
8USB2, USB device (connection to
computer)
16 TB5, relay output
See Figure
26
and Figure
27
for the location of communication interfaces in
91PS/93PS UPS.
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6.1 Native signal terminals
Table 19: Native signal terminals
Terminal Pins
TB6 Pull chain Pin 1: EXT Pullchain return
Pin 2: External pullchain
TB7 External CAN
connection Pin 1: CAN cable shield grounding
Pin 2: CAN GND
Pin 3: CANBL
Pin 4: CANBH
TB8 CAN termina-
tion jumper Pin 1: CAN termination 1
Pin 2: CAN termination 2
TB1 Customer
alarm, input Pin 1: Signal input 5 return
Pin 2: Signal input 5
Pin 3: Signal input 4 return
Pin 4: Signal input 4
Pin 5: Signal input 3 return
Pin 6: Signal input 3
Pin 7:Signal input 2 return
Pin 8: Signal input 2
Pin 9: Signal input 1 return
Pin 10: Signal input 1
TB4 EPO Pin 1: EPO normal closed
Pin 2: EPO normal closed return
Pin 3: EPO normal open
Pin 4: EPO normal open return
Note: There must be a jumper between Pin 3 and Pin 4 when a
normal closed EPO signal is used.
TB5 Relay, output
(30 Vac / 30Vdc, 5
A)
Pin 1: Relay normal open
Pin 2: Relay normal closed
Pin 3: Relay COM
The output relay configurations are shown in Figure
31
.
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6.2 MiniSlot cards
The Eaton 91PS/93PS UPS has 2 MiniSlot communication bays. To install a
MiniSlot card, follow the instructions in Section
5.5.5
.
The UPS is compatible with the following MiniSlot cards:
• Network Card-MS
Provides remote monitoring through a Web browser interface, e-mail, and a
network management system (NMS) using SNMP and connects to a twisted-
pair Ethernet (10/100BaseT) network.
Figure 28. Network Card - MS
• PX Gateway Card
Provides remote monitoring through a Web browser interface, e-mail, and a
network management system (NMS) using SNMP and connects to a twisted-
pair Ethernet (10/100BaseT) network. The card also provides direct
integration of UPS information (meters and status) to a Building
Management System (BMS) using the Modbus RTU and TCP protocols as
well as BACnet protocols.
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Figure 29. PX Gateway Card
Note: PX Gateway Card is not compatible with 91PS units.
• Industrial Relay Card-MS
The MiniSlot Industrial Relay Card provides a way of connecting the 91PS/
93PS to industrial and electrical monitoring systems. It also enables a wide
range of control applications by allowing up to 250 volts and 8 Amperes
through its 5 relay connections. By connecting wires to the corresponding
places in its terminal blocks, you can choose Normally Open or Normally
Closed setup for each output.
For information on how to configure Industrial Relay Card-MS, see Section
6.6
.
Figure 30. Industrial Relay Card-MS
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6.3 Intelligent Power Software
Intelligent Power Software are productivity tools for UPS power management.
These software solutions enhance the protection provided by a UPS by shutting
down applications and operating systems, triggering disaster recovery
procedures and migrating virtual machines in case of an extended power
outage. They also help in reducing downtime and increasing the reliability of the
UPS by alarming the operators of issues and monitoring vital meters. The
software can also be used to view the usage characteristics of power equipment
across the enterprise and use the data to optimize the use of the facilities.
Intelligent Power Software is web-based, which means that the information can
be accessed through any device that has a web browser.
On one hand, Intelligent Power Manager (IPM) is a monitoring system that can
concentrate the data and alarms of hundreds of UPS, ePDU and other devices
into a single view. On the other hand, it provides a link to virtualization through
management systems, such as VMware vCenter. This way an administrator
gets a single pane of glass to manage both IT equipment and the supporting
infrastructure. IPM provides the shutdown, migration, disaster recovery and load
shedding features in virtualized environments.
Intelligent Power Protector (IPP) is a shutdown agent with basic monitoring and
alarming capability. It provides automatic, graceful shutdown of computers and
virtual machines or servers powered by an Eaton UPS during a power outage
that lasts longer than your available battery runtime. Intelligent Power Protector
can be remotely supervised and managed by the Intelligent Power Manager
(IPM) application.
Intelligent Power Software is delivered on a CD with the UPS. Alternatively, you
can download it from the Eaton web page. Some of the advanced features of
IPM require a license, contact your Eaton representative for details.
6.4 Signal input monitoring
This standard feature lets you connect smoke detectors or over-temperature
alarms to your signal inputs. The user interface terminals for external
connections are located inside the UPS. Use twisted-pair wires for each alarm
input and common.
The signal inputs can be programmed to display the alarm functional name.
6.5 General purpose relay contact
One general purpose relay contact is provided as a standard feature on the
UPS. An alarm contact is also provided. The output relay configurations are
shown in Figure
31
.
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NO NC
123
123
Figure 31. Connections of the relay contacts
You can use a normally-closed or normally-open contact. If the state of the
contact changes from the state you specify as normal, a signal is issued. You
can connect this contact to equipment at your facility (such as a light or an alarm
bell) to let you know when an alarm is active on the UPS. This feature is useful if
the UPS is located in a remote area where the UPS horn may not be heard
immediately.
Note: Do not operate the contacts in excess of 30 VAC (RMS) and 30 VDC at
5 A maximum.
6.6 Configuring relays
91PS/93PS offers one native relay output. Additionally, each of the 2 MiniSlots
can be equipped with a relay card, including 5 relays. The instructions guide you
through the relay configuration.
Currently the relay configuration can be done only using the display. The service
tool does not yet have support for nodebit functions.
The maximum voltage of the native relay is 30 V. Examine the voltage and
current specifications of the other cards from the previous sections.
The process for relay configuration is the following.
1. In the home screen of the display, click the lock icon in the top right corner
to type in the service password.
2. In the sign in window, click the password field containing the 4 dots.
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Figure 32. Sign in window with the password field
3. Enter the password 0101 and press .
4. Select Continue.
5. Select Configuration and then Relays Outputs.
Figure 33. Selecting Relay Outputs in the Configurations screen
6. Select out of the following options:
• Native (Alarm) relay
It is possible to set 8 different events for the native relay. If any of the
set events occurs, the relay is activated
• MiniSlot 1
• MiniSlot 2
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Figure 34. Options for relay outputs configuration
7. Enter the code(s) of the function(s) that you want to trigger the relay when
they become active.
8. Press OK and Save to save the changes.
Figure 35. Entering the codes of the functions that will trigger the relay
9. If you selected one of the MiniSlots, the following default values are
available:
• Relay 1: #262 On Line (LED is lit)
• Relay 2: #260 On Battery (LED is lit)
• Relay 3: #416 Alarm (LED is lit)
• Relay 4: #261 On Bypass (LED is lit)
• Relay 5: #15 Low Battery warning
Alternatively, you can configure the relays with any event you want.
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10. You can test the relays by selecting any of the options in the test mode
(see Figure
34
).
Figure 36. Relays
1Cable exit opening for up to 12 mm (½”)
conduit
3K1 thru K5 terminal connections for relay
contacts to operator's monitoring
equipment
2Signal input connector with voltage supply
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7 UPS operating instructions
This section describes how to operate the UPS.
CAUTION
Before you operate the UPS, make sure that all the installation tasks are
completed and a preliminary startup has been performed by authorized
service personnel. The preliminary startup verifies all the electrical
interconnections to make sure that the installation was successful and the
system operates properly.
Before you operate any of the controls, read these instructions and have a
thorough understanding of the UPS operation.
The UPS is configured to operate with one of the following nominal voltages:
220/380, 230/400, or 240/415 VAC. Before you start to operate the UPS,
confirm the UPS nominal voltage and frequency from the display by selecting
Settings > Information. If the UPS need to be operated with another voltage
or frequency, contact your closest Eaton office or Eaton authorized partner.
Note: The UPS is not a measuring device. All the displayed measurements
are approximate values only.
7.1 UPS controls and indicators
7.1.1 Control panel
The control panel, located on the UPS front door, contains a color touch screen
display. It is used to display the status of the UPS system and to control the
operation of the UPS.
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Figure 37. Parts of the display
The display consists of the following parts:
1 Status bar The status bar displays the UPS name, state, current
date and time, meters information, and a sign in/out
button. It also shows any active alarms and warn-
ings.
2 Main navigation Select a screen by tapping on its name.
3 Content area This is the main area for showing information on the
UPS status and operations.
4 Status indicators See Section
7.1.2
.
7.1.2 Status indicators
The four symbols below the display are status indicators. They are colored light
emitting diode (LED) lamps, and they work in conjunction with the alarm horn to
let you know the operating status of the UPS.
Table 20: Status indicators
Indicator Status Description
Green symbol for normal
operation
On The UPS is operating normally and supplying pow-
er to the critical load.
Off The UPS is turned off.
Yellow symbol for battery
mode
On The UPS is in the battery mode. Because the bat-
tery mode is a normal condition of the UPS, the
green indicator for normal operation also remains
illuminated.
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Indicator Status Description
Yellow symbol for bypass
mode
On The UPS is in the bypass mode. The critical load is
supported by the bypass source. The green indica-
tor for normal operation is not illuminated when the
system is in the bypass mode.
Red symbol for active
alarm
On The UPS has an active alarm and requires imme-
diate attention. The screen shows the highest pri-
ority active alarms. All alarms are accompanied by
an audible horn. To silence the horn, press any
control panel button once. The alarm indicator may
be illuminated along with other indicators.
LED Power Show (optional)
The optional LED Power Show (LPS) consists of two rows of LEDs located on
the left and right sides of the UPS cabinet door. The LEDs are red, green and
yellow (RGY). The color of the LED is used to indicate the condition of the UPS.
The most urgent condition is always the one shown. Only one color is shown at
a time. The table below defines which color is shown.
Color LED indicators (screen and door) UPS status
Normal operation
Battery mode
The green LEDs on the sides of the UPS
cabinet door are blinking and the yellow
symbol for battery mode is illuminated be-
low the display. Since the battery mode is
a normal condition of the UPS, the green
symbol for normal operation is also illumi-
nated below the display.
Bypass mode
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Color LED indicators (screen and door) UPS status
Alarm
7.1.3 System events
When the UPS system is running in the double conversion mode, it continually
monitors itself and the incoming utility power. In the battery or bypass mode, the
UPS may issue alarms to let you know exactly what event caused the change
from the double conversion mode. System events on the UPS can be indicated
by horns, lights, messages, or all three.
Select Logs in the home screen to look at any currently active events.
• System event horn
The system event horn beeps to alert the user that an alarm activates.
• System event indicators
The status indicators on the UPS control panel and the event horn let you
know when the UPS system is operating in any mode other than the double
conversion mode. Only the green indicator for normal operation is visible
during normal UPS system operation. The other indicators illuminate to
indicate alarms or events. When an alarm occurs, first check these indicators
to see what type of event has taken place.
• System event messages
When a system event occurs, a message appears in the status bar of the
display. This message is also written to the Active Events log. The alarms
are accompanied by an audible horn. To silence the horn, press the touch
screen.
7.1.4 Menu structure of the 91PS/93PS UPS
The following table shows the menu structure of the 91PS/93PS UPS.
Table 21: Menu structure of the 91PS/93PS UPS
Main menu Submenu Functions
Home - An overview of the UPS operation, including informa-
tion on load, efficiency and consumption.
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Main menu Submenu Functions
Meters Meters summa-
ry
A summary of the UPS or system meters.
Input meters Detailed information on UPS or system input meters.
Bypass meters Detailed information on UPS or system bypass me-
ters.
Output meters Detailed information on UPS or system output me-
ters.
UPM Power
Battery meters Detailed information on UPS or system battery me-
ters.
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Main menu Submenu Functions
Controls System controls Go Online
Go to bypass
Turn Off Charger
Load Off
UPS controls Run battery test
Shut down UP
Module controls Start charger
Run battery test
Shut down module / Start module
UPM 1:
• Charger
• Battery test
• UPM status
UPM 2:
• Charger
• Battery test
• UPM status
EAA controls ESS:
• Enable
• Disable
• Configure
VMMS:
• Enable
• Disable
• Configure
Enable High Alert
Clear status
ABM:
• Enable
• Disable
• Configure
Clear Alarms
Clear Logs
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Main menu Submenu Functions
Mimics UPS mimics An overview of the UPS operation, including informa-
tion on load, efficiency and consumption. If there is
an error, an error indicator is displayed next to the af-
fected part. Active events log can be opened by tap-
ping the error indicator.
UPS module
map
Module map shows the status of each UPM.
System over-
view
System overview shows the status and meters sum-
mary for each UPS.
ESS The ESS mimic screen shows the approximated con-
sumption and energy savings of the ESS mode.
Logs Active events All active events are displayed.
System log A log of all system events.
Service log A detailed log of UPS operations.
Change log A log of all changed settings and their values.
Statistics:
UPS, Battery
Statistics sum-
mary
A summary of UPS statistics
Statistics details Details are available by pressing on different statis-
tics.
Settings User Configura-
tion Service
Configurable user settings. For details, see Section
7.1.4.1
.
7.1.4.1 User settings
The UPS includes information for the user. Some settings are user-modifiable.
In the Home screen, select Settings.
Table 22: User settings (non-modifiable)
Setting Description
Information Information on the UPS model, including the CTO number and
serial number.
About Firmware version information.
To modify the Configuration settings, you need to sign in.
Table 23: Configuration settings
Setting Description
Language Change the user interface language.
Unit Name Change the unit name.
Clock Change the date and time, change the clock format or enable/
disable NTP clock setup.
GSM GSM modem.
Call Service Send automatic e-mail to the service center in case of a failure.
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Setting Description
Signal Input Select signal input name and function or change contact polarity.
Relay Outputs Configure the relay outputs.
Battery test Change the power level and duration for battery test.
Bypass Limits Change the bypass voltage or bypass frequency.
Screen Saver Time-
out
Change the screen saver timeout.
Meters Change the meters format.
Lamp Test Enable the lamp test.
HMI backlight Adjust the backlight brightness.
Control P/W level 1 Change the level 1 password, or remove the password on level 1.
The default value is 1111.
Control P/W level 2 Change the level 2 password. The default value is 0101.
Reset statistics Reset all statistics.
Minimum required
kVa
Change the minimum required kVa.
7.2 Signing in
If the level 1 password is enabled, you need to sign in.
1. Press the lock icon in the top right corner of the screen.
2. Type in your password and press OK.
You are signed in.
3. Press Continue to return to the previous screen.
You have 3 attempts to type in the password. If an incorrect password is given
more than 3 times, you need to wait for 30 minutes before trying again.
To modify the user settings, you need to enter the level 2 password. For the
default passwords, see Section
7.1.4.1
.
7.3 System control instructions
7.3.1 Starting the UPS system in the double conversion mode
The UPS system can consist of a single UPS or several parallel UPSs. UPSs
with their MOB open are not considered as part of the system.
To start the UPS system:
1. Open the UPS front door.
2. Check that the rectifier input switch S1 closed.
3. Check that the battery breaker CB1 is closed.
4. Close the UPS front door.
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5. Close the UPS input feeder circuit breaker.
6. Close the UPS bypass input feeder circuit breaker.
7. Wait for the UPS control panel display to become active and to indicate
logic power.
8. Repeat steps 1-7 for each individual UPS in the system.
9. In the home screen, press Controls.
The System controls screen appears.
10. In the System controls screen, check that the system status is SHUTDOWN.
11. In the System controls screen, press the Go online button.
If Auto Bypass is enabled (factory default), the critical load is immediately
supplied by the bypass source, in the bypass mode, until the inverter turns
on and the UPS transfers to the double conversion mode. The status
indicator on the UPS control panel indicates that the UPS is in the bypass
mode. If auto bypass is not enabled, the UPS output remains off until the
UPS system transfers to double conversion mode.
12. Wait for the following messages to appear sequentially on the System
controls screen:
STARTING
ONLINE
The UPS system is now operating in the double conversion mode. The green
status indicator for normal operation is illuminated in all the UPSs in the system.
7.3.2 Starting the UPS system in the bypass mode
CAUTION
In the bypass mode, the critical load is not protected from mains power
interruptions and abnormalities.
If the inverter output of the UPS is not available and the critical load needs to be
energized, perform the following procedure:
1. Open the UPS front door.
2. Check that the rectifier input switch S1 is closed.
3. Check that the battery breaker CB1 is closed.
4. Close the front door.
5. Close the UPS input feeder circuit breaker.
6. Close the UPS bypass input feeder circuit breaker.
7. Wait for the UPS control panel to become active and indicate logic power.
8. Repeat steps 1-7 for each single UPS in the system.
9. In the home screen, press Controls.
The System controls screen appears.
10. In the System Controls screen, check that the system status is shown as
SHUTDOWN.
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11. In the System controls screen, press the Go to bypass button.
The critical load is immediately supplied by the bypass source, in the
bypass mode.
The UPS system is now operating in the bypass mode. The yellow bypass
status indicator is illuminated.
7.3.3 Transferring from the double conversion mode to the bypass
mode
CAUTION
In the bypass mode, the critical load is not protected from mains power
interruptions and abnormalities.
To transfer the critical load to the bypass mode, perform the following
procedure:
1. In the home screen, press Controls.
The System controls screen appears.
2. In the System controls screen, press the Go to bypass button.
The UPS system transfers to the bypass mode and the critical load is
immediately supplied by the bypass source. If the bypass source is not
available, the power processor remains on and an alarm sounds.
The UPS system is now operating in the bypass mode and the yellow bypass
status indicator is illuminated. The UPM status is shown as Ready. The system
status is shown as ON BYPASS.
7.3.4 Transferring from the bypass mode to the double conversion
mode
To transfer the critical load to the double conversion mode, perform the following
procedure:
1. In the home screen, press Controls.
The System controls screen appears.
2. In the System controls screen, press the Go online button.
The UPS system transfers to the double conversion mode. If there is not
enough UPM capacity available, the system remains in the bypass mode
and an alarm sounds.
The UPS is now operating in the double conversion mode. The green status
indicator for normal operation is illuminated. The system status is shown as
UNIT ONLINE.
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7.3.5 Transferring from the double conversion mode to the Energy
Saver System mode
Note: Note that the Energy Saver System mode commands are displayed
only if enabled at the factory or by an authorized Eaton Customer Service
Engineer .
To transfer the critical load to the Energy Saver System mode:
1. In the home screen, press Controls.
2. Select EAA Controls.
3. Select Enable ESS.
The entire UPS system transfers to the Energy Saver System mode and
the critical load is supplied by the bypass source. If the bypass source is
not available or the conditions are not correct for the ESS mode, the power
module remains on and an alarm sounds. The green status indicator for
normal operation is illuminated. The UPS status is shown as UNIT
ONLINE, ESS. The UPM status is shown as READY.
7.3.6 Transferring from the Energy Saver System mode to the
double conversion mode
Note: Note that the Energy Saver System mode commands are displayed
only if enabled at the factory or by an authorized Eaton Customer Service
Engineer.
To transfer the critical load to the double conversion mode:
1. In the home screen, press Controls.
2. Select EAA Controls.
3. Select Disable ESS.
The UPS system transfers to the battery mode and then to the double
conversion mode. If the power module is not available, the system remains
in the bypass mode and an alarm sounds. The green status indicator for
normal operation is illuminated. The UPS status is shown as UNIT
ONLINE. The UPM status is shown as ACTIVE.
7.3.7 Transferring from the double conversion mode to the Variable
Module Management System mode
Note: Note that the Variable Module Management System mode commands
are displayed only if enabled at the factory or by an authorized Eaton
Customer Service Engineer .
To transfer the critical load to the Variable Module Management System mode:
1. In the home screen, press Controls.
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2. Select EAA Controls.
3. Select Enable VMMS.
The entire UPS system transfers to the Variable Module Management
System mode and the critical load is supplied by the bypass source. If the
bypass source is not available or the conditions are not correct for the
VMMS mode, the power module remains on and an alarm sounds. The
green status indicator for normal operation is illuminated. The UPS status
is shown as UNIT ONLINE, VMMS. The UPM status is shown as READY.
7.3.8 Transferring from the Variable Module Management System
mode to the double conversion mode
Note: Note that theVariable Module Management System mode commands
are displayed only if enabled at the factory or by an authorized Eaton
Customer Service Engineer.
To transfer the critical load to the double conversion mode:
1. In the home screen, press Controls.
2. Select EAA Controls.
3. Select Disable VMMS.
The UPS system transfers to the battery mode and then to the double
conversion mode. If the power module is not available, the system remains
in the bypass mode and an alarm sounds. The green status indicator for
normal operation is illuminated. The UPS status is shown as UNIT
ONLINE. The UPM status is shown as ACTIVE.
7.3.9 Shutting down the UPS system and critical load
To perform maintenance or service on the critical load, shut down the power to
the load by performing the following procedure:
1. Turn off all the equipment that is powered by the UPS system.
2. Perform the LOAD OFF procedure (see Section
7.3.10
).
The input, output, and bypass backfeed contactors open, the battery
breaker or disconnect is tripped, and the power module is turned off.
3. Open the UPS front door.
4. Open the rectifier input switches.
5. Check that the battery breaker is open.
6. Close the UPS front door.
7. Open the UPS input and bypass feeder circuit breakers.
8. Repeat steps 3–7 for all the UPSs in the system.
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DANGER
Power is still present inside each UPS cabinet until the upstream feeder
circuit breaker is opened, and in case of a parallel system, the output is
isolated or parallel units are shut down as well.
7.3.10 De-energizing the critical load
Initiate a UPS system Load Off by pressing the Load Off button in the Controls >
System Controls screen. This button can be pressed to control the UPS output.
The Load Off button de-energizes the critical load and shuts down the UPS
system. The UPS system (including bypass) remains off until it is restarted.
1. Press Load Off.
The shutdown screen appears, providing a choice to proceed or abort the
shutdown.
2. To shut down the UPS, press Load Off. To abort the shutdown, press
Abort.
Note: All power to the critical load is lost when Load Off is selected. Only
use this feature when you want to de-energize the critical load.
When Load Off is selected, the input, output, and bypass backfeed contactors
open, the battery breaker CB1 or disconnect is tripped, and all the UPSs in the
system are turned off.
To restart the UPS system, follow the procedure in Section
7.3.1
or Section
7.3.2
.
CAUTION
Do not attempt to restart the system after Load Off until you have identified
and cleared the cause of the shutdown.
7.4 UPS control instructions
7.4.1 Starting a single UPS
Make sure that the load level does not exceed the single UPS capacity.
To start the UPS:
1. Open the UPS front door.
2. If included inside the UPS system, check that the rectifier input switch S1 is
closed.
3. Check that the battery breaker CB1 is closed.
4. Close the UPS front door.
5. Close the UPS input feeder circuit breaker.
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6. Close the UPS bypass input feeder circuit breaker.
7. Wait for the UPS control panel display to become active and indicate logic
power.
8. In the home screen, press Controls.
9. Press the UPS controls button.
In the UPS controls screen, the system status is shown as SHUTDOWN.
10. In the UPS controls screen, press the GO online button.
If Auto Bypass is enabled (factory default), the critical load is immediately
supplied by the bypass source in the bypass mode, until the inverter turns
on and the UPS transfers to the double conversion mode. The yellow
status indicator on the UPS control panel indicates that the UPS is in the
bypass mode. If auto bypass is not enabled, the UPS output remains off
until the UPS system transfers to the double conversion mode.
11. In the UPS control screen, press the GO online button.
12. Wait for the following messages to appear sequentially on the UPS status
line:
STARTING
ONLINE
The UPS system is now operating in the double conversion mode and the green
status indicator for normal operation is illuminated.
7.4.2 Shutting down a single UPS
A single UPS in the system can be shut down only if it is redundant. In practice,
this means that a UPS is not allowed to be shut down if doing so would lead to
an overload condition in the remaining UPSs in the system.
To shut down a single UPS:
1. In the home screen, press Controls.
The System controls screen is displayed.
2. In the System controls screen, press UPS controls.
3. In the UPS control screen, select Shut down UPS.
7.4.3 Enabling and disabling the battery charger
To turn the battery charger on or off, perform the following procedure:
1. In the home screen, press Controls.
The System controls screen appears.
2. In the System controls screen, press UPS controls.
3. Press the Turn on / Turn off button.
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7.5 UPM control instructions
7.5.1 Starting the UPMs
Make sure that the load level does not exceed the single UPM capacity.
To start an individual power module in the double conversion mode:
1. Open the UPS front door.
2. If included inside the UPS system, check that the rectifier input switches
are closed.
3. Check that the battery breaker is closed.
4. Close the UPS front door.
5. Close the UPS input feeder circuit breaker.
6. Close the UPS bypass input feeder circuit breaker.
7. Wait for the UPS control panel to become active and indicate logic power.
8. In the home screen, press Controls.
The System controls screen is displayed.
9. In the System controls screen, check that the UPS status is shown as
SHUTDOWN.
10. Check that there are no active alarms.
11. In the System controls screen, press Module controls.
The Select module screen is displayed.
12. Select the UPM you want to start.
The UPM control screen is displayed. The UPM status is shown as
SHUTDOWN.
13. In the UPM control screen, select Start module.
14. Wait for the following messages to appear sequentially on the UPM status
line:
READY
ACTIVE
The UPM rectifier and inverter turn on and the UPM transfers to the double
conversion mode and supplies the critical load.
7.5.2 Shutting down the UPMs
A single UPM in the system can be shut down only if it is redundant. In practice,
this means that a UPM is not allowed to be shut down if doing so would lead to
an overload condition in the remaining UPMs or UPSs in the system.
To shut down a single UPM:
1. In the home screen, press Controls.
The System controls screen is displayed.
2. In the System controls screen, press Module controls.
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The Select module screen is displayed.
3. Select the UPM you want to shut down.
4. In the UPM control screen, select Shut down module.
7.6 Using the Remote Emergency Power-off switch
A UPS emergency power-off is initiated by the EPO pushbutton switch. In case
of an emergency, you can use this switch to control the UPS output. The EPO
switch de-energizes the critical load and powers down the UPS immediately
without asking for verification. The UPS, including the static bypass switch,
remains off until it is restarted.
CAUTION
When the EPO switch is activated, all power to the critical load is lost. Use
this feature only in case of emergency.
Note: The following instructions are for the EPO switch supplied by Eaton
Corporation. If you are using a customer-supplied EPO switch, it may not
activate in the same way. For operating instructions, see the documentation
provided with the switch.
To use the EPO switch:
1. Press the EPO pushbutton switch.
The input, output, and bypass backfeed relays open, the battery breaker or
disconnect is tripped, and the power module is turned off immediately,
without asking for verification.
To restart the UPS after using the EPO pushbutton, reset the EPO switch and
then follow the procedure in Section
7.3.1
or Section
7.3.2
.
WARNING
Do not attempt to restart the system after using the EPO switch until the
conditions for safe start-up have been confirmed.
7.7 Turning the UPS from the double conversion mode to
the maintenance bypass mode
Only trained personnel who are familiar with the behavior and functions of the
UPS are allowed to operate the internal MBS. A full UPS wiring diagram with
MBS switch is presented in the schematic diagram.
Note: The internal MBS and static bypass must be supplied by the same
source.
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The MBS has 3 positions: UPS, Test and Bypass. When the MBS is turned to
the Test position, the UPS is already turned to maintenance bypass and it no
longer provides protected input to the load, but enables testing of the UPS
internal functionality.
To turn the UPS to maintenance bypass:
1. Follow the normal start position:
Figure 38. Normal positions of the MBS switches and rectifier disconnect switch
(must be located in the site wiring)
A Static bypass input 1 Maintenance Bypass Switch (MBS)
B Rectifier input
C Out
2. Perform the transfer from the double conversion mode to the bypass mode
as instructed in Section
7.3.3
. Remember to verify the transfer before
proceeding to the next step.
3. Turn the MBS from the UPS position to the Test position.
4. Perform the LOAD OFF procedure as described in Section
7.3.9
.
5. Turn the MBS from the Test position to the Bypass position.
6. Turn off the rectifier switch to disconnect the UPS rectifier input.
7. Turn off the static bypass switch to disconnect the UPS bypass input.
The UPS is now in the maintenance bypass mode:
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Figure 39. Maintenance bypass mode
A Static bypass input 1 Maintenance Bypass Switch (MBS)
B Rectifier input
C Out
7.8 Turning the UPS from the maintenance bypass mode
to the double conversion mode
To turn the UPS back to the double conversion mode:
1. Follow the normal start position:
Figure 40. Maintenance bypass mode
A Static bypass input 1 Maintenance Bypass Switch (MBS)
B Rectifier input
C Out
2. Turn on the rectifier switch to connect rectifier input to the UPS.
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3. Turn on the static bypass switch to connect bypass input to the UPS.
4. Turn the MBS from the bypass position to the test position.
5. Perform the UPS start-up procedure (bypass mode) in Section
7.3.2
.
6. Turn the MBS from the test position to the UPS position.
7. Perform the transfer from the bypass mode to the double conversion mode
as described in Section
7.3.4
.
The UPS is now in the double conversion mode.
Figure 41. Double conversion mode
A Static bypass input 1 Maintenance Bypass Switch (MBS)
B Rectifier input
C Out
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8 UPS maintenance
The components inside the UPS cabinet are secured to a sturdy metal frame. All
repairable parts and assemblies are located for easy removal with very little
disassembly. This design allows authorized service personnel to perform routine
maintenance and servicing quickly. Schedule periodic performance checks of
your UPS system to keep it running properly. Regular routine checks of the
operation and system parameters enable your system to function efficiently for
many trouble-free years.
8.1 Important safety instructions
Remember that your UPS system is designed to supply power EVEN WHEN IT
IS DISCONNECTED FROM THE UTILITY POWER. The UPS module interiors
are unsafe until the DC power source is disconnected and the electrolytic
capacitors are discharged.
After disconnecting the utility power and the DC power, authorized service
personnel must wait at least 5 minutes for capacitor bleed-off before attempting
internal access to the UPS module.
DANGER
LETHAL VOLTAGE. Do not operate the UPS system without the cabinet
doors or protective panels secured. Do not make any assumptions about the
electrical state of any cabinet in the UPS system.
WARNING
All service and maintenance work must be performed only by service
personnel qualified and authorized by Eaton.
CAUTION
An additional warning label, shown in Figure
42
, must be installed at the UPS
input terminals and all the primary power isolators used to isolate the UPS
unit if the UPS input is connected through external isolators that, when
opened, isolate the neutral. These warning labels can be obtained from your
local service representative.
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Figure 42. Warning label
Since each battery string is an energy source in itself, opening the battery circuit
breaker does not de-energize the voltage within the battery string.
DANGER
Do not attempt to access any internal area of the battery string yourself.
Voltages are always present in the battery strings. If you suspect that a
battery string needs service, contact your service representative.
Observe these precautions when working on or around batteries:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves and boots.
• Do not lay tools or metal parts on top of batteries or battery cabinets.
• Prior to connecting or disconnecting terminal, disconnect the charging
source.
• Determine if the battery is inadvertently grounded. If it is, remove the source
of the ground. Contact with any part of a grounded battery can result in an
electrical shock. The likelihood of such a shock is reduced if such grounds
are removed during installation and maintenance.
• When replacing batteries, use the same number of sealed, lead-acid
batteries.
• Dispose of batteries according to your local codes for disposal requirements.
8.2 Preventive maintenance
The UPS system requires very little preventive maintenance. However, inspect
the system periodically to verify that the units are operating normally and that
the batteries are in good condition.
The majority of the service and maintenance work must be done by service
personnel qualified by Eaton. Only the actions described in Section
8.2.1
and
Section
8.2.2
are can be done by the user.
8.2.1 Daily maintenance
Perform the following steps every day:
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1. Check the area surrounding the UPS system. Make sure that the area is
not cluttered, allowing free access to the unit.
2. Check that the air intakes (vents on the front doors) and exhaust opening
(the back of the UPS cabinet sections) are not blocked.
3. Make sure that the operating environment is within the parameters
specified in Section
4.3.1
and Chapter
9
.
4. Check that the UPS is in the normal operation mode (the green status
indicator for normal operation is illuminated). If the red alarm status
indicator is illuminated or the green status indicator for normal operation is
not illuminated, contact your service representative.
8.2.2 Monthly maintenance
Perform the following steps once a month:
1. Check the system parameters on the control panel (see Section
7.1.4
).
2. If the optional air filters are installed, check them (located behind the front
doors) and wash or replace them, if needed. Contact your service
representative for replacement filters. To replace the filters:
a. Open the UPS front door.
b. Replace the filters.
c. Close the UPS front door.
3. Record the check results and any corrective actions in a service log.
8.2.3 Periodic maintenance
Inspect the UPS periodically to determine if components, wiring, and
connections exhibit evidence of overheating. Pay particular attention to bolted
connections. Bolted connections must be re-torqued periodically.
8.2.4 Annual maintenance
WARNING
Only authorized personnel that are familiar with the maintenance and
servicing of the UPS system are allowed to perform annual preventive
maintenance. Contact your service representative for more information about
service offerings.
8.2.5 Battery maintenance
WARNING
Only authorized personnel are allowed to perform battery replacement and
maintenance. Contact your service representative for battery maintenance.
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8.3 Recycling the used UPS or batteries
Remove the battery bank before disposing of the UPS or its battery cabinet.
Follow the local requirements regarding battery recycling or disposal.
WARNING
Only authorized personnel are allowed to remove the batteries due to the risk
caused by high energy and voltage.
Do not discard waste electrical or electronic equipment in the trash. For proper
disposal, contact your local collecting/recycling/reuse or hazardous waste center
and follow the local legislation.
The following symbols indicate a product requiring special handling:
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Figure 43. WEEE symbol
Figure 44. Recycling batteries symbol
When handling waste from electrical and electronic equipment, use proper local
collecting centers that meet local legislation.
WARNING
HAZARDOUS MATERIALS.
Batteries may contain high voltages and caustic, toxic and flammable
substances. If used improperly, batteries can injure or kill people and damage
equipment.
Do not discard of unwanted batteries or battery material in the public waste
disposal system. Follow all the applicable local regulations regarding the
storage, handling and disposal of batteries and battery materials.
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8.4 Maintenance training
For more information about training and other services, contact your Eaton
representative.
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9 Technical data
For a complete technical specification, contact your Eaton representative. Due
to continuous product improvement programs, specifications are subject to
change without notice.
9.1 Directives and standards
Safety IEC 62040-1: Uninterruptible power systems (UPS) - Part
1: General and safety requirements for UPS
IEC 60950-1: Information technology equipment - Safety -
Part 1: General requirements (as referred through the IEC
62040-1)
EMC IEC 62040-2: Uninterruptible power systems (UPS) - Part
2: Electromagnetic compatibility (EMC) requirements / Ed.
2
• Emissions: category C2
• Immunity: category C3
Performance & tests IEC 62040-3: Uninterruptible power systems (UPS) - Part
3: Method of specifying the performance and test require-
ments
Environmental IEC62040-4: Uninterruptible Power Systems (UPS) - Part
4: Environmental Aspects - Requirements and Reporting
IEC 62430: Environmentally conscious design for electrical
and electronic products
RoHS 2011/65/EU on the restriction of the use of certain hazard-
ous substances in electrical and electronic equipment
WEEE 2012/19/EU on waste electrical and electronic equipment
(WEEE)
ECO Design Directive 2009/125/EC establishing a framework for the setting of
eco-design requirements for energy-related products
Batteries 2006/66/EC on batteries and accumulators and waste bat-
teries and accumulators
Packaging 94/62/EC on packaging and packaging waste
9.2 UPS system input
Rated input voltage 220/380 V; 230/400 V; 240/415 V
Voltage tolerance, (Rectifier input) 230 V -15% / +20%
Voltage tolerance, (Bypass input) 230 V -15% / +10%
Rated input frequency 50 or 60 Hz
Frequency tolerance 40 to 72 Hz
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Number of input phases (rectifier) 3 phases, N
Number of input phases (bypass) 3 phases, N or 1 phase, N
Input power factor 0.99
Rated mains input current
Maximum mains input current
See Table
15
Input current distortion at rated input cur-
rent, iTHD 93PS: 8 kW, 10 kW: resistive load <3%,
non-linear load <5%
93PS: 15-40 kW: resistive load <3%, non-
linear load <4%
91PS: 8-10 kW: resistive load <4%, non-
linear load <6.5%
91PS: 15-30 kW: resistive load <3.5%,
non-linear load <5.5%
Rectifier ramp-up, rectifier start and load
step 10 A/s (default), configurable.
Min 1A/s
Backfeed protection Yes, for rectifier and bypass lines
9.3 UPS system output
Number of output phases 3 phases, or 1 phase, N
Rated output voltage 220/380 V; 230/400 V; 240/415 V, configu-
rable
Rated output frequency 50 or 60 Hz, user configurable
Total voltage harmonic distortion:
100 % linear load 1.5%
100 % non-linear load 3.5%
Output frequency variation +/- 0.1 Hz (with 1 UPM), +/- 0.15 Hz (with 2
UPMs)
Slew rate 0.4 Hz/s
Output current See Table
15
Overload capability at ambient 40 °C (in
the double conversion mode) 102 – 110 % rated power for 10 min
111 – 125 % rated power for 60 s
126 – 150 % rated power for 10 s
> 150% rated power for 300 ms
Overload capability at ambient 40 °C (in
the stored energy mode) 102 – 110 % rated power for 10 min
111 – 125 % rated power for 60 s
126 – 150 % rated power for 10 s
> 150% rated power for 300 ms
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Overload capability at ambient 40 °C (in
the bypass mode) Continuous ≤ 125% load
Transient ≤ 1000% RMS current for 20 ms
Note! Bypass fuses may limit the overload
capability
Load power factor (rated) Nominal 1.0
Load power factor (permitted range) From 0.8 lagging to 0.8 leading
Max ambient temperature without de-rating 40 °C
9.4 UPS environmental specifications
Acoustic noise at 1 m 40 kW unit: <55 dB at 75% load
40 kW unit: <60 dB at 100% load
Ambient storage temperature From -25 °C to +55 °C in the protective
package
Transportation temperature 1) From -25 °C to 60 °C
Ambient operating temperature range From 0 °C to +40 °C*
Relative humidity range 5 to 95%, no condensation allowed
Maximum service altitude 1,000 m (3,300 ft) above sea level at +40
°C
Maximum 2,000 m (6,600 ft) with 1% de-
rating per each additional 100 m above
1,000 m.
Maximum storage time with internal batter-
ies
6 months without recharge
* Maximum recommended operating and storage temperature for UPS with internal bat-
teries is +25 °C. Higher storage temperature will shorten the maximum storage time
without recharging.
1) The maximum recommended operational and storage temperature with VRLA batter-
ies is 25 °C.
9.5 Battery specification
Battery type VRLA, 12 VDC
Battery quantity Default 32 blocks, 192 cells per battery
string
External battery 28–40 blocks, 168–240
cells per battery string
Note! Do not connect battery strings with
different battery quantity and voltage in
parallel!
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Battery voltage 384 V (32 blocks), 336 V (28 blocks), 480
V (40 blocks)
Recharge profile Constant voltage, constant current charg-
ing (U-I characteristics), ABM or float
charge
End of discharge voltage 1.67 VPC to 1.75 VPC, configurable or au-
tomatic (load adaptive)
Charge current Configurable:
8–20 kW units (one UPM) Configurable 0...25 A:
1…25 A with the 20 kW UPM (at > 80%
load limited to 15 A)
1…18 A with the 15 kW UPM (at > 80%
load limited to 10 A)
8–40 kW units (two UPMs) Configurable 0...50 A (at > 80% load auto-
matically limited to 30 A)
0… 36 A with the 15 kW UPM (at > 80%
load limited to 20 A)
Note: the maximum charge current is 25 A
per one 20 kW UPM and 18 A per one 15
kW UPM
Battery start option Yes
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10 Warranty
10.1 General
The product is warranted against defects in materials and workmanship for a
period of twelve (12) months from its original date of purchase. The local office
or distributor may grant a warranty period different to the above. Please refer to
local terms of liability as defined in the supply contract.
The UPS manufacturer is not responsible for:
• Any costs resulting from a failure if the installation, commissioning, repair,
alternation, or ambient conditions of the equipment do not fulfill the
requirements specified in the documentation delivered with the unit and
other relevant documentation.
• Equipment subjected to misuse, negligence or accident.
• Equipment comprised of materials provided or designs stipulated by the
purchaser.
The warranty is only valid if the installation inspection and initial startup of the
UPS unit is carried out by an authorized Eaton Customer Service Engineer or by
other qualified service personnel authorized by Eaton. Service and maintenance
of the UPS shall also be performed only by an authorized Eaton Customer
Service Engineer or by other qualified service personnel authorized by Eaton.
Otherwise the warranty will be voided.
If the product fails to meet its published specifications due to a defect in material
and workmanship, covered by this warranty, the seller will repair or replace the
warranted product. Such repair or replacement will be made by Eaton or by a
service provider approved by Eaton. Repair or replacement during the warranty
period does not extend the original warranty. Warranty does not cover taxes,
which will be due in connection with replacement or repair of the product.
Batteries are warranted against failures in material and workmanship, not
against the normal aging and reduction of ampere-hour capacity. The product
storage environment has to meet manufacturer's specifications, failure to do this
will cause the warranty to be voided.
Under no circumstances shall the manufacturer, its suppliers or subcontractors
be liable for special, indirect, incidental or consequential damages, losses or
penalties.
The technical data, information and specifications are valid at the time of
printing. The UPS manufacturer reserves the right to modifications without prior
notice.
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10.2 Whom to contact in case of Warranty
In case of Warranty, or while unsure if the unit in question is covered by
warranty, contact the respective sales organization where the unit was
purchased. Have the following information available:
• Purchase order number and purchase order date
• Installation date
OR
• Serial number and part number of the unit (information available on the unit's
label)
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11 Appendix A: Recommended secure hardening
guidelines
The UPS has been designed with cybersecurity as an important consideration.
Number of cybersecurity features are now offered in the product which, if
implemented as per the recommendations in this section, would minimize the
cybersecurity risk to the UPS. The “secure configuration” or “hardening”
guidelines provide information to the users to securely deploy and maintain their
product to adequately minimize the cybersecurity risks to their system.
Our company is committed to minimizing the cybersecurity risk in its products
and deploys cybersecurity best practices and latest cybersecurity technologies
in its products and solutions, making them more secure, reliable and competitive
for our customers. Our company also offers Cybersecurity Best Practices
whitepapers to its customers that can be referenced at www.eaton.com/
cybersecurity.
Table 24: Secure configuration guidelines
Category Description
Asset identification and in-
ventory Keeping track of all the devices in the system is a pre-
requisite for effective management of cybersecurity of a
system. Make sure that you maintain an inventory of all
the components in your system in a manner in which you
uniquely identify each component. To facilitate this, the
UPS supports the following identifying information: manu-
facturer, type, serial number, f/w version number, and lo-
cation.
Users can extract device information at locations men-
tioned below:
• Product number, serial number and UPS name are lis-
ted on the Information screen
• Firmware versions can be found on the About screen
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Category Description
Physical protection Industrial Control Protocols do not offer cryptographic pro-
tections at protocol level, at physical ports and at control-
ler mode switches, leaving them exposed to cybersecurity
risk. Physical security is an important layer of defense in
such cases. The UPS is designed with the consideration
that it would be deployed and operated in a physically se-
cure location.
• Physical access to the communication lines should be
restricted to prevent any attempts of wiretapping or
sabotage. It is a best practice to use metal conduits
for the communication lines running from one cabinet
to another cabinet.
• An attacker with unauthorized physical access to the
device could cause serious disruption of the device
functionality. A combination of physical access con-
trols to the location should be used, such as locks,
card readers, and/or guards.
• The UPS supports the following physical access ports:
RS232, USB and slots for communication cards. Ac-
cess to them must be restricted.
• Do not connect an unauthorized USB device, CD/DVD
or SD card for any operation (for example, firmware
upgrade, configuration change and boot application
change).
• Before connecting any portable device through USB,
CD/DVD or SD card slot, scan the device for mal-
wares and viruses.
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Category Description
Authorization and access
control It is extremely important to securely configure the logical
access mechanisms provided in the UPS to safeguard the
device from unauthorized access. Our company recom-
mends that the available access control mechanisms be
used properly to ensure that access to the system is re-
stricted to legitimate users only. And, such users are re-
stricted to only the privilege levels necessary to complete
their job roles/functions.
• Ensure that default credentials are changed upon first
login. The UPS should not be commissioned for pro-
duction with default credentials. It is a serious cyber-
security flaw as the default credentials are published
in the manuals.
• No password sharing - Make sure that each user gets
their own password for that desired functionality in-
stead of sharing the passwords. Security monitoring
features of the UPS are created with the view of each
user having their own unique password. Security con-
trols will be weakened as soon as the users start shar-
ing the password.
• Restrict administrative privileges - Threat actors are
increasingly focused on gaining control of legitimate
credentials, especially those associated with highly
privileged accounts. Limit privileges to only those nee-
ded for a user’s duties.
• Perform periodic account maintenance (remove un-
used accounts).
• Change passwords and other system access creden-
tials whenever there is a personnel change.
Access to service screen and configuration screen is ac-
cess-controlled. Access to UPS features is restricted
based on roles:
1. Configuration screen can be accessed by the User
role.
2. Service screen can be accessed only by the Service
engineer role.
The following are the access levels in the UPS:
• Level 1: Control password for User
• Level 2: Configure password for User
• Level 3: Service password for an authorized Eaton
Customer Service Engineer or qualified service per-
sonnel authorized by Eaton
Users are recommended to change default passwords on
first use of the system. The default session timeout is 10
minutes.
The UPS does not enforce any account policies. Custom-
ers need to enforce their account policies.
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Category Description
Logging and event manage-
ment Best practices:
• Our company recommends that all administrative and
maintenance activities are logged.
• Ensure that logs are backed up. Retain the backups
for a minimum of 3 months or as per the organiza-
tion’s security policy.
• Perform log review at a minimum every 15 days.
The UPS supports the following logging mechanisms:
• The UPS logs all active events, alarms and notices
• Configuration changes made are logged (language
change, modify UPS name, etc.)
Secure maintenance Best practices:
Apply firmware updates and patches regularly.
Due to increasing cyber attacks on industrial control sys-
tems, our company implements a comprehensive patch
and update process for its products. Users are encour-
aged to maintain a consistent process to promptly monitor
for fresh firmware updates, implement patching and up-
dates as and when required or released.
Our company will upgrade the UPS firmware from time to
time. If any site needs to upgrade firmware, they can con-
tact the service center for upgrade.
Our company also has a robust vulnerability response
process. In the event of any security vulnerability getting
discovered in its products, our company patches the vul-
nerability and releases an information bulletin through its
cybersecurity web site: http://eaton.com/cybersecurity.
Conduct regular cybersecurity risk analyses of the organi-
zation/system.
Our company has worked with third-party security firms to
perform system audits, both as part of a specific custom-
er’s deployment and within our company’s own develop-
ment cycle process. Our company can provide guidance
and support to your organization’s effort to perform regular
cybersecurity audits or assessments.
Plan for business continuity/cybersecurity disaster recov-
ery.
It is a cybersecurity best practice for organizations to plan
for business continuity. Establish an OT business continui-
ty plan, periodically review and, where possible, exercise
the established continuity plans. Make sure offsite back-
ups include:
• A backup of the most current configurations
• Documentation of the most current user list
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References:
1. Cybersecurity Considerations for Electrical Distribution Systems
(WP152002EN):
http://www.eaton.com/ecm/groups/public/@pub/@eaton/@corp/
documents/content/pct_1603172.pdf
2. Cybersecurity Best Practices Checklist Reminder (WP910003EN):
http://www.cooperindustries.com/content/dam/public/powersystems/
resources/library/1100_EAS/WP910003EN.pdf
3. NIST SP 800-82 Rev 2, Guide to Industrial Control Systems (ICS) Security,
May 2015.
https://ics-cert.us-cert.gov/Standards-and-References
4. National Institute of Technology (NIST) Interagency “Guidelines on
Firewalls and Firewall Policy, NIST Special Publication 800-41”, October
2009.
http://nvlpubs.nist.gov/nistpubs/Legacy/SP/
nistspecialpublication800-41r1.pdf
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Copyright © 2018 Eaton Corporation plc. All rights reserved. Unauthorized copying and lending are prohibited.
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