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
8 UPS maintenance
9 Technical data
10 Warranty
- 10.1 General
- 10.2 Whom to contact in case of Warranty

Eaton 93PS User Manual

Displayed below is the user manual for 93PS by Eaton which is a product in the Uninterruptible Power Supplies (UPSs) category. This manual has pages.

Related Manuals

Eaton 93PS Manual

User's and installation

guide

Eaton 93PS UPS 8–40 kW

P-164000493

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

Original instructions _X_ / Translation of the original instructions __

Eaton 93PS UPS 8–40 kW User's and installation guide

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...............................................................18

3.2.1 Normal operating modes............................................. 19

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

3.3.5 Sync Control................................................................ 28

3.4 Software and connectivity features........................................... 29

3.4.1 User interface.............................................................. 29

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

Eaton 93PS UPS 8–40 kW User's and installation guide

4.2 Installation checklist.................................................................. 34

4.3 Site preparations.......................................................................34

4.3.1 Environmental and installation considerations.............35

4.3.2 UPS system power wiring preparations.......................38

4.4 Unpacking and unloading the UPS........................................... 45

5 UPS system installation......................................................................... 49

5.1 Steps to install the UPS............................................................ 49

5.2 Battery system installation........................................................ 52

5.2.1 Battery trip wiring......................................................... 52

5.3 Installing UPS external battery cabinet and battery power

cabling............................................................................................. 53

5.4 Installing a remote EPO switch ................................................ 54

5.5 Installing interface connections.................................................54

5.5.1 Installing customer input signals interface................... 55

5.5.2 Battery breaker wiring interface................................... 55

5.5.3 Relay output interface connections..............................56

5.5.4 Industrial Relay Card interface connections................ 56

5.5.5 MiniSlot interface connections..................................... 57

5.5.6 Installing signal interface connections in a parallel

system................................................................................ 57

5.6 Wiring parallel 93PS UPS systems...........................................58

5.6.1 Power wiring overview................................................. 58

5.6.2 Control signals overview..............................................60

5.6.3 Installing bypass control wiring.................................... 61

5.7 UPS system interface wiring preparation..................................64

6 Communication interfaces......................................................................65

6.1 MiniSlot cards........................................................................... 66

6.2 Intelligent Power Software........................................................ 68

6.3 Signal input monitoring............................................................. 69

6.4 General purpose relay contact..................................................69

6.5 Configuring relays..................................................................... 69

7 UPS operating instructions.....................................................................73

7.1 UPS controls and indicators......................................................73

7.1.1 Control panel............................................................... 73

7.1.2 Status indicators.......................................................... 74

7.1.3 System events............................................................. 76

7.1.4 Menu structure of the 93PS UPS.................................76

7.2 Signing in.................................................................................. 80

7.3 System control instructions....................................................... 80

7.3.1 Starting the UPS system in the double conversion

mode...................................................................................80

Eaton 93PS UPS 8–40 kW User's and installation guide

7.3.2 Starting the UPS system in the bypass mode............. 81

7.3.3 Transferring from the double conversion mode to

the bypass mode................................................................ 82

7.3.4 Transferring from the bypass mode to the double

conversion mode................................................................ 82

7.3.5 Transferring from the double conversion mode to

the Energy Saver System mode.........................................83

7.3.6 Transferring from the Energy Saver System mode

to the double conversion mode.......................................... 83

7.3.7 Shutting down the UPS system and critical load......... 83

7.3.8 De-energizing the critical load..................................... 84

7.4 UPS control instructions............................................................85

7.4.1 Starting a single UPS...................................................85

7.4.2 Shutting down a single UPS........................................ 86

7.4.3 Enabling and disabling the battery charger................. 86

7.5 UPM control instructions........................................................... 86

7.5.1 Starting the UPMs........................................................86

7.5.2 Shutting down the UPMs............................................. 87

7.6 Using the Remote Emergency Power-off switch.......................87

7.7 Turning the UPS from the double conversion mode to the

maintenance bypass mode..............................................................88

7.8 Turning the UPS from the maintenance bypass mode to

the double conversion mode............................................................90

8 UPS maintenance.................................................................................. 92

8.1 Important safety instructions..................................................... 92

8.2 Performing preventive maintenance......................................... 93

8.2.1 Daily maintenance....................................................... 94

8.2.2 Monthly maintenance...................................................94

8.2.3 Periodic maintenance.................................................. 94

8.2.4 Annual maintenance.................................................... 94

8.2.5 Battery maintenance....................................................95

8.3 Recycling the used UPS or batteries........................................ 95

8.4 Maintenance training.................................................................97

9 Technical data........................................................................................98

9.1 Directives and standards.......................................................... 98

9.2 UPS system input..................................................................... 98

9.3 UPS system output................................................................... 99

9.4 UPS environmental specifications.......................................... 100

9.5 Battery specification................................................................100

10 Warranty...............................................................................................102

10.1 General................................................................................... 102

Eaton 93PS UPS 8–40 kW User's and installation guide

10.2 Whom to contact in case of Warranty..................................... 103

Eaton 93PS UPS 8–40 kW User's and installation guide

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 93PS UPS 8–40 kW User's and installation guide

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

This document uses the following acronyms to refer to Eaton UPS products or

their parts:

Table 1: Glossary of acronyms

ABM Advanced Battery Management

BIB Bybass Input Breaker

EBC External Battery Cabinet

EMBS External Maintenance Bypass Switch

Eaton 93PS UPS 8–40 kW User's and installation guide

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

RIB Rectifier Input Breaker

SCR Silicon-controlled Rectifier

STSW Static Switch

UPM Uninterruptible Power Module

UPS Uninterruptible Power Supply

VMMS Variable Module Management System

Eaton 93PS UPS 8–40 kW User's and installation guide

2 Safety instructions

DANGER

Important safety instructions!

Save these instructions!

This document contains important instructions that must be followed 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/

93ps.

DANGER

Operations inside the UPS must be performed 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 are allowed to

install and service it.

DANGER

This UPS carries lethal voltages. All repairs and service must be performed

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 93PS UPS 8–40 kW User's and installation guide

WARNING

Batteries present a risk of electrical shock or burn from high short-circuit

current. Observe proper 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 are allowed to perform installation or service work on batteries.

Keep unauthorized personnel away from the batteries. Before you install or

replace batteries, consider 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.

Check 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.

Dispose of 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 93PS UPS 8–40 kW User's and installation guide

CAUTION

Keep the surroundings of the UPS uncluttered, clean, and free from excess

moisture.

Observe all DANGER, CAUTION, and WARNING notices affixed to the inside

and outside of 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:

• LV Directive (Safety) 2014/35/EU

• EMC Directive 2014/30/EU

Declarations of conformity with UPS harmonized standards and directives EN

62040-1 (Safety) and EN 62040-2 (EMC) 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 93PS UPS 8–40 kW User's and installation guide

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 93PS UPS 8–40 kW User's and installation guide

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 93PS UPS 8–40 kW User's and installation guide

3 Introduction to Eaton UPS

Figure 1. Eaton 93PS UPS 20 kW C-model frame, 93PS UPS 20 kW standard frame and

93PS UPS 40 kW frame

The Eaton® 93PS uninterruptible power supply (UPS) is a true online,

continuous-duty, transformerless, double-conversion, solid-state, three-phase

system that 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 20

kW and 40 kW. 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 93PS output power ratings are based on 15 kW and 20 kW rated

uninterruptible power modules (UPMs). With the small 20 kW frame, a single

UPS cabinet can house one UPM module to get ratings of 8 kW, 10 kW, 15 kW

or 20 kW. With the large 40 kW UPS frame, a single UPS cabinet can house

one or two UPM modules to get ratings of 8 kW, 10 kW, 15 kW, 20 kW, 30 kW

Eaton 93PS UPS 8–40 kW User's and installation guide

or 40 kW. 93PS is also available as a C-model, which consist of the electrical

part of the 93PS UPS 20 kW frame without the battery compartment.

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 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

)

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 93PS UPS 8–40 kW User's and installation guide

3.1 Looking inside the UPS system

Figure 2. Looking inside the Eaton 93PS UPS 20 kW standard and C-model frames

Figure 3. Looking inside the Eaton 93PS 40 kW frame

1. Control panel 6. Input switch

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 Eaton 93PS 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

Eaton 93PS UPS 8–40 kW User's and installation guide

bypass are 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.

The 93PS UPS 20 kW frame includes one UPM and internal batteries. It can

include a 20 kW or 40 kW rated static bypass. The 93PS UPS 20 kW C-model

frame contains only the electrical part of the 93PS UPS and no internal

batteries. It can also include a 20 kW or 40 kW rated static bypass. The 93PS

UPS 40 kW frame includes one or two UPMs, internal batteries and a 40 kW

rated static bypass. In addition to the internal batteries, external batteries can

also be connected.

WARNING

Hazardous voltage can exist in the battery circuit until disconnected from

external battery source.

In the 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

, 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.

3.2 UPS operating modes

The UPS operating modes are as follows:

• Normal operating modes:

• In the double conversion mode, the critical load is supplied by the

inverter, which derives its power from rectified utility AC power. In this

mode, the battery charger also provides charging current for the battery,

if needed.

• In the Energy Saver System (ESS) mode, the 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

Eaton 93PS UPS 8–40 kW User's and installation guide

time, should any abnormal condition be detected in the utility. When

operating in the ESS mode, the load is protected with inherent surge

suppression. Operating the UPS in the ESS mode increases system

efficiency up to 98.8%, allowing significant savings in energy losses

without compromising system reliability

• In the stored energy mode, energy is drawn from a DC backup power source

and converted to AC power by the UPS inverter. Most commonly VRLA

batteries are introduced to the system for this purpose, and the mode of

operation is called the battery mode.

• In the bypass mode, the critical load is supported directly by utility power

through the UPS static switch.

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

shows the path of electrical power through the UPS system when the

UPS is operating in the double conversion mode.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

always connected to the UPS and ready to support the inverter should the utility

input become unavailable.

The inverter produces a 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 Energy Saver System mode

Figure

shows the path of electrical power through the UPS system when the

UPS is operating in the Energy Saver System (ESS) mode.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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 up to 98.8% 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

shows the path of electrical power through the UPS system when

operating in the battery mode.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

When this event occurs, the UPS issues a set of audible and visual alarms

indicating that the batteries have a minimal capacity left and a system shutdown

is imminent. Unless utility power is restored, the output can be supported for a

Eaton 93PS UPS 8–40 kW User's and installation guide

maximum of 2 minutes before the output of the system shuts down. If the

bypass source is available, the UPS transfers to the bypass mode instead of

shutting down.

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

shows the path of electrical power through the UPS system when

operating in the bypass mode.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 three-phase 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 48 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 (user-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 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

6. The Power Conditioner mode is available in both 3 and 4 wire

configurations.

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.

3.3.5 Sync Control

The Eaton® Sync Control maintains the critical load outputs of two separate

UPS systems in synchronization. Use of the Eaton Fixed Master Sync Control

provides uninterrupted transfer of the load from one load bus to another by

means of downstream, dual-source, solid-state transfer switches. Without the

load sync option, the two system output (critical load) buses can become out of

phase with each other. This condition occurs when suitable bypass sources are

not available or when the bypass sources feeding each system are not in sync

with each other. Examples of this condition are two systems supplied by

Eaton 93PS UPS 8–40 kW User's and installation guide

separate generator sets, or situation where the bypass sources for the two

systems are lost.

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

for additional information.

3.4.2 Power Management Software

Intelligent Power software products offer tools for monitoring and managing

power devices across the network. See Chapter

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 completely bypass

and isolate the UPS so that the UPS can be safely serviced or replaced without

interrupting power to critical systems.

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 breakers: one for the rectifier inputs (RIB) and another

for bypass inputs (BIB). It may also include auxiliary contacts to report the status

of the switchgear to the UPS.

For external MBS installation instructions, see a separate manual.

3.5.2 Field Installed UPM (accessory)

With a 93PS UPS in a 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

In order to install an FI-UPM, the UPS cabinet needs to have upgradeability,

which is determined by the power rating of the static bypass. For example, if the

static switch is rated for 40 kW and the UPS contains one 20 kW UPM, it is

possible to add another 20 kW UPM to it.

For a listing of the upgradeable configurations, see Table

CAUTION

Only an authorized Eaton Customer Service Engineer or other qualified

service personnel authorized by Eaton are allowed to install an FI-UPM.

Note: Check 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 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

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

The following UPS configurations with different static bypass sizes and number

of UPMs are possible:

Table 2: UPS configurations

Description System

power

[kW]

Power

modules

[kW]

Static

switch

[kW]

Internal battery

Single system configurations in the 20 kW frame size*

93PS-8(20)-20(-C) 8 1*8 20 Yes/No

93PS-8(20S)-20(-C) 8 1*8 40 Yes/No

93PS-10(20)-20(-C) 10 1*10 20 Yes/No

93PS-10(20S)-20(-C) 10 1*10 40 Yes/No

93PS-15(20)-20(-C) 15 1*15 20 Yes/No

93PS-15(20S)-20(-C) 15 1*15 40 Yes/No

93PS-20(20)-20(-C) 20 1*20 20 Yes/No

93PS-20(20S)-20(-C) 20 1*20 40 Yes/No

Single system configurations in the 40 kW frame size

93PS-8(40)-20 8 1*8 40 Yes/No

93PS-8+8(40)-40 8 8+8 40 Yes (separate)/No

93PS-10(40)-20 10 1*10 40 Yes/No

93PS-10+10(40)-40 10 10+10 40 Yes (separate)/No

93PS-15(40)-20 15 1*15 40 Yes/No

93PS-15+15(40)-40 15 15+15 40 Yes (separate)/No

93PS-20(40)-20 20 1*20 40 Yes/No

93PS-20+20(40)-40 20 20+20 40 Yes (separate)/No

93PS-30(40)-40 30 2*15 40 Yes (common)/No

93PS-40(40)-40 40 2*20 40 Yes (common)/No

*Applies to the 93PS 8–20 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.

UPS options and accessories

Eaton 93PS UPS 8–40 kW User's and installation guide

The following table shows different standard and optional UPS features and the

models where they apply.

Table 3: Standard and optional UPS features

Feature 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

)

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

to create a logical plan for installing the

system.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 1 and 2.

(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

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

Failure to follow these guidelines may void your warranty.

CAUTION

Do not stack anything on top of the 93PS UPS cabinet.

Do not stack the UPS 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

, and the size requirements shown in Table

Table 4: Dimensions

20 kW frame

[mm]

20 kW frame

C-model

[mm]

40 kW frame

[mm]

Shipping dimen-

sions (WxDxH)

540 x 857 x 1,460 540 x 857 x 705 750 x 820 x 1,975

Cabinet dimensions

(WxDxH)

335 x 750 x 1,300 335 x 750 x 645 480 x 750 x 1,750

Table 5: UPS cabinet weights with cardboard packaging

20 kW

frame

20 kW C-model

frame

40 kW

frame

Shipping weight 293 kg 98 kg 558 kg

Installed weight 280 kg 86 kg 532 kg

Eaton 93PS UPS 8–40 kW User's and installation guide

20 kW

frame

20 kW C-model

frame

40 kW

frame

Floor loading 1,007 kg/m2310 kg/m21,478 kg/m2

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

Note: This equipment is not intended for building-in, rack-mounting or for

incorporation in larger equipment.

Table 6: UPS cabinet minimum clearances

20 kW frame* 40 kW frame

From the top of the cabinet 500 mm 500 mm

From the front of the cabinet 500 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 93PS 20 kW C-model frame as well.

Eaton 93PS UPS 8–40 kW User's and installation guide

• 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

Table 7: Air conditioning or ventilation requirements during full load operation

Heat rejection

(BTU/h x 1,000)

Heat rejection

(kW)

8 kW 1.17 0.3

Eaton 93PS UPS 8–40 kW User's and installation guide

Heat rejection

(BTU/h x 1,000)

Heat rejection

(kW)

10 kW 1.46 0.4

15 kW 2.19 0.6

20 kW 2.92 0.9

30 kW 4.38 1.3

40 kW 5.84 1.7

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 93PS

UPS 8–20kW 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 93PS UPS 40 kW, 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 93PS UPS cabinets, see Figure

Figure 9. The dimensions of the Eaton 93PS UPS 20 kW C-model frame, the 93PS UPS

20 kW frame, and the 93PS UPS 40 kW frame, respectively.

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

Eaton 93PS UPS 8–40 kW User's and installation guide

- 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 8–20 kW cabinet. Maximum conductor cross section of the

single feed is 35 mm2.

When you plan and perform the installation, read and understand the following

notes:

• 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

. 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 this equipment uses four cables. The rectifier feed into

this equipment uses three or four cables. The phases must be symmetrical

about ground (from a Wye source) for proper equipment operation.

• If the load requires a neutral, a bypass source neutral must be provided. If

the load does not require a neutral and there is no neutral conductor

connected at the bypass input, a neutral must be installed to source star

point.

• 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 8: Minimum recommended multi-core cable and fuse sizes for rectifier and bypass

input and UPS output cables

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

Eaton 93PS UPS 8–40 kW User's and installation guide

UPS rating (kW) 8 10 15 20 30 40

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

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 type plate of the UPS.

Table 9: 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 connecting external batteries to 93PS UPS, Eaton recommends that you

use the following NZM series molded case circuit breakers:

Type Article No Nominal battery

voltage

12V VRLA

Blocks

With 93PS

8–20 kW

NZM1–A63 259083

(P-122000209)

336–432 V 28–36

NZMH2–A63 259097 444–480 V 37–40

Eaton 93PS UPS 8–40 kW User's and installation guide

Type Article No Nominal battery

voltage

12V VRLA

Blocks

With 93PS

30–40 kW

NZM1–A160 281234

(P-122000199)

336–432 V 28–36

NZMN2-A160 259092 444–480 V 37–40

NOTE: Maximum string length for the 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.

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 10: Rated and maximum currents for rated power and voltage

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

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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]

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 10. Power cable terminals in the 93PS 20 kW frame

Figure 11. Power cable terminals in the 93PS 40 kW frame

Eaton 93PS UPS 8–40 kW User's and installation guide

1X1: rectifier input, N 12 X3: UPS output, L3

2X1: rectifier input L1 13 X4: external battery cable + **

3X1: rectifier input L2 14 X4: external battery cable – ***

4X1: rectifier input L3 15 TB20: external battery trip

5X2: bypass input, N 16 TB21: external battery trip *

6X2, bypass input, L1 17 PE

7X2: bypass input L2 18 X4:1: external battery cable + *

8X2, bypass input L3 19 X4:2: external battery cable - *

9X3: UPS output, N *Only in models with the separate battery

option

10 X3: UPS output, L1 ** X4:3 in models with the separate battery

option

11 X3: UPS output, L2 *** X4:4 in models with the separate battery

option

For the external separate battery option, there are separate terminals for both

battery banks (cabinets). These terminals replace terminals 5 and 10 shown in

Figure

Note: External overcurrent protection is not provided by this product, but is

required by codes. Refer to Table

for wiring requirements. If a lockable

output disconnect is required, it must be supplied by the user.

Table 11: UPS power cable terminal torques

UPS frame Function Tightening torque

93PS 20 kW X1, X2, X3: L1, L2, L3, N 1.6

X4: battery +/- 3.0

PE (ground) 3.0

93PS 40 kW X1, X2, X3: L1, L2, L3, N 6.0

X4: battery +/- 6.0

PE (ground) 3.0

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

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

The recommended line-to-line load unbalance is 50% or less.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 Unpacking and unloading the UPS

Before you start to unpack and unload the UPS, check the TipNTell / DropNTell

indicator on the package surface (see step 2 below). If the equipment has been

correctly transported in the upright position, the indicator should be intact. If the

indicator arrow has turned all blue, contact the appropriate parties to report

inappropriate transportation.

WARNING

The UPS cabinet is heavy. If the unpacking instructions are not closely

followed, the cabinet may tip over and cause serious injury.

Do not tilt the UPS cabinet more than 10 degrees from the vertical or the

cabinet may tip over.

For transportation purposes, the UPS cabinet is bolted onto a wooden pallet. To

remove the pallet, perform the following procedure:

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

2. Make a visual inspection and

check that there are no signs of

shipping damages. Check the

indicators. See the instructions

next to the indicators on the

package.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

5. If the leveling feet are not fully

retracted, turn them until they

are retracted.

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.

Note: After you have removed the shipping brackets, move the unit

immediately away from the pallet.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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 93PS 8-20 kW UPS,

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 93PS UPS 8–40 kW User's and installation guide

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

and Figure

To install and connect the power cabling of the external battery to the UPS, see

Section

5.2

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 12. Gland plate and connector locations in the 93PS UPS 20 kW standard and C-

model frames

Figure 13. Gland plate and connector locations in the 93PS UPS 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 93PS UPS 8–40 kW User's and installation guide

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 Figure

and

Figure

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

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.

8. Slide the internal battery trays

into place and mount the locking

brackets.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 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 93PS 8-40 kW 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 93PS UPS 8–40 kW User's and installation guide

energized (controlled) through connectors TB20 and TB21 (TB21 available only

in the 40 kW UPS frame). The default voltage of the shunt trip coil is 24 Vdc.

Figure 14. Battery trip wiring, TB20

Figure 15. 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 93PS product line, there are two different battery cabinets: EBC-S and

EBC-L. The 93PS 8-40 kW UPSs use 32 battery blocks per string.

CAUTION

If you connect the C-model 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.

Power and control wiring for the EBC-S and EBC-L cabinets are supplied with

the cabinets. The battery cabinet can be located freely of the 93PS UPS

cabinet. All the wiring goes through the back wall of the UPS cabinet.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 Figure

and Figure

Note: If batteries are wired outside the cabinets, follow the installation

instructions given in Section

4.3.2

. See Table

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

shows the NO and NC connections of the EPO switch.

EPO connector (front view):

Figure 16. Connections of the EPO switch

ANormally open BNormally closed

Table 12: 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

5.5 Installing interface connections

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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 using an external battery system (either the original 93PS battery cabinet

or a customer-sourced battery cabinet/rack), external signaling wiring is

recommended to be connected.

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 Figure

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 (for example, “On Generator”) 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

93PS 8-20 kW UPS, 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.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 17. Industrial Relay Card INDRELAY-MS

5.5.5 MiniSlot interface connections

For MiniSlot accessories and communication devices selection, see Chapter

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 instructions. Signal inputs 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

5.6 Wiring parallel 93PS UPS systems

The outputs of multiple 93PS 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.

Dual source

Eaton 93PS UPS 8–40 kW User's and installation guide

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. A common battery for all UPSs is not supported.

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

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

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 18. 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)

Eaton 93PS UPS 8–40 kW User's and installation guide

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. All the UPSs react in the same

manner as if the action item was active on that UPS.

Wiring the EPO switch in parallel

It is recommended to use separate EPO circuits for each parallel unit.

5.6.3 Installing bypass 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

and Figure

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 19. 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 20. CAN and Pull-Chain wiring for parallel UPS with MOBs

Figure 21. 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

the UPS and MOB AUX contacts. Always confirm contact operation prior to

wiring.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

• 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 1 and 2 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

6 Communication interfaces

This section describes the communication features of the Eaton 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

See Figure

and Figure

for the location of communication interfaces in

93PS UPS 8–40 kW. The numbered parts are explained after the figures.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 22. Communication interfaces in the 93PS UPS 20 kW standard and C-model

frames

Figure 23. Communication interfaces in the 93PS UPS 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

6.1 MiniSlot cards

The Eaton 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

Eaton 93PS UPS 8–40 kW User's and installation guide

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 24. 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.

Figure 25. PX Gateway Card

• Industrial Relay Card-MS

The MiniSlot Industrial Relay Card provides a way of connecting the 93PS to

industrial and electrical monitoring systems. It also enables a wide range of

control applications by allowing up to 250 volts and 6 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

6.5

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 26. Industrial Relay Card-MS

6.2 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

6.3 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.

6.4 General purpose relay contact

One general purpose relay contact is provided as a standard feature on the

UPS. An alarm contact is also provided.

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.

6.5 Configuring relays

93PS offers one native relay output. Additionally, each of the 2 MiniSlots can be

equipped with a relay card, including 5 relays. The following 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 relay is 30 V. Check the voltage and current

specifications of the other cards from the previous sections.

The process for relay configuration is as follows:

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 27. 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 28. 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

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 29. 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 30. 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: #352 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

10. You can test the relays by selecting any of the options in the test mode

(see Figure

Figure 31. 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

Eaton 93PS UPS 8–40 kW User's and installation guide

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:

380, 400, or 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 32. 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 13: 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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 event requiring

attention is taking place.

• 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. Some notices

and alarms may be accompanied by an audible horn. To silence the horn,

press any button once.

7.1.4 Menu structure of the 93PS UPS

The following table shows the menu structure of the 93PS UPS.

Table 14: Menu structure of the 93PS UPS

Main menu Submenu Functions

Home - An overview of the UPS operation, including informa-

tion on load, efficiency and consumption.

Eaton 93PS UPS 8–40 kW User's and installation guide

Main menu Submenu Functions

Meters Meters summa-

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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 has the following settings that are user-modifiable. In the Home

screen, select Settings.

Table 15: User settings

Setting Description

Information Information on the UPS model, including part number and serial

number.

About Version information.

To modify the Configuration settings, you need to sign in.

Table 16: 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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.

5. Close the UPS input feeder circuit breaker.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 rectifier and inverter turn on. The DC voltage continues to ramp up to

full voltage. Once the DC link reaches full voltage and the battery breaker

is closed, the UPS output relay K3 closes and the static switch turns off.

Power is now supplied to the critical load in the double conversion mode. It

takes approximately 20 seconds for the UPS system to achieve the double

conversion mode.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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 Service 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 Service 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 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

2. Perform the LOAD OFF procedure (see Section

7.3.8

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. If included in the UPS system, 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.

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.

7.3.8 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 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 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 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 rectifier and inverter turn on. The DC voltage continues to ramp up to

full voltage. Once the DC link reaches full voltage and the battery breaker

is closed, the UPS output relay K3 closes. Power is now supplied to the

critical load in the double conversion mode. It takes approximately 20

seconds for the UPS system to achieve the double conversion mode.

The UPS system is now operating in the double conversion mode and the green

status indicator for normal operation is illuminated.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

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:

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 33. 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

7.3.7

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:

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 34. 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 35. 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

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 36. Double conversion mode

A Static bypass input 1 Maintenance Bypass Switch (MBS)

B Rectifier input

C Out

Eaton 93PS UPS 8–40 kW User's and installation guide

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

, 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 37. 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 Performing 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 performed by service

personnel qualified by Eaton. Only the actions described in Section

8.2.1

and

Section

8.2.2

are allowed to be performed by the user.

See the Eaton 93PS UPS 8–40 kW Service Manual for further information.

Eaton 93PS UPS 8–40 kW User's and installation guide

8.2.1 Daily maintenance

Perform the following steps every day:

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

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.

Eaton 93PS UPS 8–40 kW User's and installation guide

8.2.5 Battery maintenance

WARNING

Only authorized personnel are allowed to perform battery replacement and

maintenance. Contact your service representative for battery maintenance.

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:

Eaton 93PS UPS 8–40 kW User's and installation guide

Figure 38. WEEE symbol

Figure 39. 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.

Eaton 93PS UPS 8–40 kW User's and installation guide

8.4 Maintenance training

For more information about training and other services, contact your Eaton

representative.

Eaton 93PS UPS 8–40 kW User's and installation guide

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.

• 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

Eaton 93PS UPS 8–40 kW User's and installation guide

Number of input phases (rectifier & bypass) 3 phases, N

Input power factor 0.99

Rated mains input current

Maximum mains input current

See Table

Input current distortion at rated input cur-

rent, iTHD 8 kW, 10 kW: resistive load <3%, non-line-

ar load <5%

15–40 kW: resistive load <3%, non-linear

load <4%

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, 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

100 % non-linear load

< 1.5%

< 3.5%

Output frequency variation +/- 0.1 Hz (with 1 UPM), +/- 0.15 Hz (with 2

UPMs)

Slew rate 1 Hz/s

Output current See Table

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

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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!

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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

Eaton 93PS UPS 8–40 kW User's and installation guide

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

Table of Contents

Eaton 93PS User Manual

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