Eaton 93PS-8(20)-20-2x7Ah-LL-6 User Manual

USER’S AND INSTALLATION

GUIDE

Eaton 93PS UPS

8-40 kW

P-164000493

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

Original instructions _X_ / Translation of the original instructions ___

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Contents

Contents ..................................................................................................................... 2

1 How to read this manual ................................................................................ 6

1.1 Safety-related signs .......................................................................... 6

1.2 Safety symbols ................................................................................. 6

1.2.1 Hazard symbols ................................................................... 6

1.2.2 Prohibited action symbols .................................................... 7

1.2.3 Mandatory action symbols ................................................... 7

1.3 Conventions used in this document ................................................. 7

2 Safety instructions ........................................................................................... 8

2.1 Audience .......................................................................................... 11

2.2 CE marking ....................................................................................... 11

2.3 User precautions .............................................................................. 11

2.4 Environment ..................................................................................... 12

2.5 Symbols on the UPS and accessories .............................................. 13

2.6 For more information ........................................................................ 13

3 Introduction to Eaton UPS ............................................................................. 14

3.1 Looking inside the UPS system ........................................................ 16

3.2 UPS operating modes ...................................................................... 18

3.2.1 Normal operating modes...................................................... 18

3.2.2 Stored energy and battery mode .......................................... 22

3.2.3 Bypass mode ....................................................................... 24

3.3 UPS features .................................................................................... 26

3.3.1 Advanced Battery Management ........................................... 26

3.3.2 Powerware Hot Sync ........................................................... 26

3.3.3 Power Conditioner ............................................................... 27

3.3.4 Frequency Converter ........................................................... 28

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

3.4 Software and connectivity features .................................................. 28

3.4.1 User interface ...................................................................... 28

3.4.2 Power Management Software ............................................. 28

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

4 UPS installation plan and unpacking ............................................................ 33

4.1 Creating an installation plan .............................................................. 33

4.2 Installation checklist ......................................................................... 33

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 .................................................................................. 50

5.1 Steps to install the UPS .................................................................... 50

5.2 Battery system installation ............................................................... 54

5.2.1 Battery trip wiring ................................................................ 54

5.3 Installing UPS external battery cabinet and battery power cabling .... 56

5.4 Installing a remote EPO switch ........................................................ 56

5.5 Installing interface connections ........................................................ 57

5.5.1 Installing customer input signal interface ............................. 58

5.5.2 Battery breaker wiring interface ........................................... 58

5.5.3 Relay output interface connections ...................................... 59

5.5.4 Industrial Relay Card interface connections .......................... 59

5.5.5 MiniSlot interface connections ............................................. 60

5.5.6 Installing signal interface connections in a parallel

system ................................................................................. 61

5.6 Wiring parallel 93PS UPS systems ................................................... 61

5.6.1 Power wiring overview ........................................................ 61

5.6.2 Control signals overview ...................................................... 64

5.6.3 Installing bypass control wiring ............................................ 64

5.7 UPS system interface wiring preparations ........................................ 67

6 Communication interfaces ............................................................................. 69

6.1 MiniSlot cards .................................................................................. 71

6.2 Intelligent Power Software ............................................................... 73

6.3 Signal input monitoring ..................................................................... 74

6.4 General purpose relay contact .......................................................... 74

6.5 Configuring relays ............................................................................ 74

7 UPS operating instructions ............................................................................. 79

7.1 UPS controls and indicators .............................................................. 80

7.1.1 Control panel ....................................................................... 80

7.1.2 Status indicators .................................................................. 81

7.1.3 System events ..................................................................... 83

7.1.4 Menu structure of the 93PS UPS ......................................... 83

7.2 Signing in ......................................................................................... 87

7.3 System control instructions .............................................................. 87

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

7.3.1 Starting the UPS system in the double conversion

mode ................................................................................... 87

7.3.2 Starting the UPS system in the bypass mode ...................... 89

7.3.3 Transferring from the double conversion mode to the

bypass mode ....................................................................... 90

7.3.4 Transferring from the bypass mode to the double

conversion mode ................................................................. 90

7.3.5 Transferring from the double conversion mode to the

Energy Saver System Mode ................................................ 91

7.3.6 Transferring from the Energy Saver System mode to

the double conversion mode ................................................ 91

7.3.7 Shutting down the UPS system and critical load .................. 92

7.3.8 De-energizing the critical load .............................................. 92

7.4 UPS control instructions ................................................................... 93

7.4.1 Starting a single UPS ........................................................... 93

7.4.2 Shutting down a single UPS ................................................. 94

7.4.3 Enabling and disabling the battery charger ........................... 94

7.5 UPM control instructions .................................................................. 95

7.5.1 Starting the UPMs ............................................................... 95

7.5.2 Shutting down the UPMs ..................................................... 96

7.6 Using the Remote Emergency Power-off switch .............................. 96

7.7 Turning the UPS from the double conversion mode to

maintenance bypass ......................................................................... 97

7.8 Turning the UPS from the maintenance bypass mode to the

double conversion mode .................................................................. 100

8 UPS maintenance ............................................................................................ 102

8.1 Important safety instructions ............................................................ 102

8.2 Performing preventive maintenance ................................................. 104

8.2.1 Preventive maintenance plan ............................................... 104

8.2.2 Daily maintenance ............................................................... 105

8.2.3 Monthly maintenance .......................................................... 105

8.2.4 Periodic maintenance ........................................................... 105

8.2.5 Annual maintenance ............................................................ 106

8.2.6 Battery maintenance ............................................................ 106

8.3 Recycling the used UPS or batteries ................................................ 106

8.4 Maintenance training ........................................................................ 108

9 Technical data .................................................................................................. 109

9.1 Standards ......................................................................................... 109

9.2 UPS system input............................................................................. 110

9.3 UPS system output .......................................................................... 111

9.4 UPS environmental specifications .................................................... 112

9.5 Battery specification ......................................................................... 112

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

10 Warranty ........................................................................................................... 114

10.1 General ............................................................................................ 114

10.2 Whom to contact in case of Warranty .............................................. 115

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 symbol

Explosion and fire

hazard

Electrical hazard

Corrosive hazard

Battery hazard

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

1.2.2 Prohibited action symbols

These symbols are used to indicate an action that should not be

taken.

General symbol for

prohibited action

No smoking

Limited or restricted

access

1.2.3 Mandatory action symbols

These symbols are used to indicate an action that must be taken.

General symbol for

mandatory action

Disconnect from

power source

Read the manual or

instructions

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.

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.

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.

.

DANGER

Operations inside the UPS must be performed by a service engineer

from the manufacturer or from an agent authorized by the

manufacturer.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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

circuit current.

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.

IMPORTANT:

The battery may consist of multiple parallel strings.

Make sure that you disconnect all strings before installation.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

2.1 Audience

The intended audience of this document is 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 to 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) 2006/95/EC

• EMC Directive 2004/108/EC

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 batteries and they must be disposed of

properly. For more information, contact your local

recycling / reuse or hazardous waste center.

This symbol indicates that you must not discard waste

electrical or electronic equipment (WEEE) in the trash.

For proper disposal, contact 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 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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

3 Introduction to Eaton UPS

Figure 1. Eaton 93PS UPS 8-20 kW and 93PS UPS 30-40 kW

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 20 kW rated

uninterruptible power modules (UPMs). 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 or 40 kW.

A UPM includes a rectifier, inverter, battery converter, and independent

controls. Each UPM is able to operate independently from the other

power modules.

NOTE: Startup and operational checks must be performed by an

authorized Eaton Customer Service Engineer, or the warranty terms

specified in the Warranty (see Chapter 10) become void. This service is

offered as part of the sales contract for the UPS. Contact service in

advance (usually a two-week notice is required) to reserve a preferred

startup date.

Eaton 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 8-20 kW

Figure 3. Looking inside the Eaton 93PS UPS 30-40 kW

1.

Control panel

2.

Door latch

3.

Power module (UPM)

4.

Internal battery

5.

Communications area

6.

Input switch

7.

Battery breaker

8.

Maintenance bypass switch

(optional)

The system level static bypass in the Eaton 93PS UPS cabinet

determines the attainable output power of the UPS. The static bypass

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

line consists of a static switch and a backfeed protection isolation device

connected in series. In addition, there is a system level control unit that

constantly monitors the power delivered through the bypass line or to

the input of the UPS. Transfers to static bypass are 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 8-20 kW 93PS UPS includes one UPM and internal batteries. It can

include a 20 kW or 40 kW rated static bypass. The 30-40 kW 93PS UPS

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.

In the 30-40 kW units, the UPMs are paralleled internally.

The rectifier input switch and battery breaker are available as standard

for all the models. The internal MBS is available as option for all the

models.

If utility power is interrupted or falls outside the parameters specified in

Chapter 9, the UPS uses a backup battery supply to maintain power to

the critical load for a specified period of time or until the utility power

returns. For extended power outages, the UPS allows you to either

transfer to an alternative power system (such as a generator) or shut

down your critical load in an orderly manner. The UPS bypass consists of

a continuous-duty static switch and a backfeed protection isolation

device. All the models also include an internal fuse in the bypass line.

The backfeed protection and bypass fuse are located in series with the

static switch.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 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 98.6%, 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

3.2.1.1 Double conversion mode

Figure 4 shows the path of electrical power through the UPS system

when the UPS is operating in the double conversion mode.

Figure 4. Path of current through the UPS in the double conversion mode

A

Static switch

1

Bypass input

Main power flow

B

Rectifier

2

Rectifier input

Energized

C

Inverter

3

Output

De-energized

D

Battery

converter

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 derives regulated DC from the rectifier and uses multilevel

converter technology with IGBT devices and pulse-width modulation

(PWM) to produce a regulated and filtered AC output.

If the utility AC power is interrupted or is out of specification, the UPS

automatically switches to the battery mode to support the critical load

without interruption. When utility power returns, the UPS returns

automatically to the double conversion mode.

If the UPS becomes overloaded or unavailable, the UPS seamlessly

switches to the bypass mode and continues supplying the load through

the static bypass. The UPS automatically returns to the double

conversion mode when the abnormal condition, such as an extended

time overload, is cleared and the system operation is restored within the

specified limits.

If a UPM within the UPS suffers an internal failure, the remaining UPMs

continue to support the load in the double conversion mode. The UPS is

automatically internally redundant when the UPS is not operating at full

load. However, if internal redundancy between the UPMs is not possible

due to high load, the UPS switches automatically to the bypass mode

and remains in that mode until the failure is corrected and the UPS is

back in operation.

In an external parallel redundant system, each UPS can be isolated from

the system for service while the remaining UPSs support the load in the

double conversion mode.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

3.2.1.2 Energy Saver System mode

Figure 5 shows the path of electrical power through the UPS system

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

Figure 5. Path of current through the UPS in the Energy saver System mode

A

Static switch

1

Bypass input

Main power flow

B

Rectifier

2

Rectifier input

Energized

C

Inverter

3

Output

De-energized

D

Battery

converter

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

to supply the critical load through its inverter. In case of a complete

utility outage or if the input power is outside the tolerances of the

system, the UPS transfers to the battery mode and continues to supply

conditioned, clean power to the critical load.

When operating in the ESS mode, the UPS's superior detection and

control algorithms continuously monitor the incoming power quality and

allow fast engagement of the power converters. Typical transition time

to the double conversion mode is less than 2 milliseconds, which is

practically seamless.

When the power conditions are within acceptable limits, the UPS

operates as a high efficiency, energy-saving system, providing surge

protection for IT equipment and making sure that clean power is

delivered to the facility. The energy saver system increases system

efficiency up to 98.6% when supplying 20-100% of nominal load,

reducing energy losses by up to 80%.

3.2.2 Stored energy and battery mode

When running normally in the double conversion or ESS mode, the UPS

automatically transfers to supply the load from batteries or some other

stored energy source if a utility power outage occurs, or if the utility

power does not conform to the specified parameters. The UPS status

indicated on the display is On Battery, and the UPM status is Active.

In the battery mode, the battery provides emergency DC power, which

is converted to regulated output power by the inverter.

Figure 6 shows the path of electrical power through the UPS system

when operating in the battery mode.

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 input

Main power flow

B

Rectifier

2

Rectifier input

Energized

C

Inverter

3

Output

De-energized

D

Battery

converter

4

Battery

breaker

Closed

E

Battery

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 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

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.

Figure 7 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 input

Main power flow

B

Rectifier

2

Rectifier input

Energized

C

Inverter

3

Output

De-energized

D

Battery

converter

4

Battery

breaker

Closed

E

Battery

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 the 93PS

product specification, except when the conditions below apply.

When in the Power Conditioner mode, the UPS has the following

functionality and limitations:

1. Run in the double conversion mode.

2. Because there is no battery, loss of utility 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

the 93PS product specification, except when the conditions below apply.

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 single 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 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 6 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 6 for more

information.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 30-40 kW 93PS UPS 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.

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

includes one 20 kW UPM, it is possible to add another 20 kW UPM to it.

For a listing of the upgradeable configurations, see Table 1.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

CAUTION

Only qualified service personnel are allowed to install 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.

In addition, external battery cabinets can be introduced to the system to

allow extended autonomy. Internal and external batteries can be used in

parallel.

For detailed battery specifications, see Chapter 9.

3.7 Basic system configurations

UPS power rating

The maximum attainable UPS system power rating is determined by the

size of the UPS cabinet frame. The number of UPM power modules

determines the nominal power rating of the UPS. If upgradeability is

required, the system static bypass should be chosen according to the

future maximum load rating, and the number of UPMs is chosen

according to the Day 1 capacity requirements.

The following UPS configurations with different static bypass sizes and

number of UPMs are possible:

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Table 1. UPS configurations

Description

System

power

[kW]

Power

modules

[kW]

Static

switch

[kW]

Internal battery

Single system configurations in a 20 kW frame size

93PS-8(20)-20

8

1*8

20

Yes/No

93PS-8(20S)-20

8

1*8

40

Yes/No

93PS-10(20)-20

10

1*10

20

Yes/No

93PS-10(20S)-20

10

1*10

40

Yes/No

93PS-15(20)-20

15

1*15

20

Yes/No

93PS-15(20S)-20

15

1*15

40

Yes/No

93PS-20(20)-20

20

1*20

20

Yes/No

93PS-20(20S)-20

20

1*20

40

Yes/No

Single system configurations in a 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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

With a 30-40 kW 93PS UPS, a single UPS frame can house a maximum

of 2 UPM power modules, 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 an 8-20 kW 93PS UPS, a single UPS

frame can house only one power module.

UPS options and accessories

The following table shows different standard and optional UPS features

and the models where they apply.

Table 2. 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 IS

Standard

Internal battery breaker BB

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 the warranty terms

specified in the Warranty (see Chapter 10) become void. This service is

offered as a part of the sales contract for the UPS. Contact service in

advance (usually a two-week notice is required) to reserve a preferred

startup date.

4.1 Creating an installation plan

Before you install the UPS system, read and understand how these

instructions apply to the system that you are going to install. Use the

procedures and illustrations in Section 4.3 and Chapter 5 to create a

logical plan for installing the system.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Action

Yes/No

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.

The area around the installed UPS system is clean and dust-free (it

is recommended that the UPS is installed on a level floor suitable

for computer or electronic equipment).

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

equipment.

The Remote Emergency Power-off (REPO) device is mounted in its

installed 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

installed location and its wiring is terminated inside the UPS and

battery cabinet.

(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 operating environment must meet the height,

clearance, and environmental requirements specified.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

4.3.1 Environmental and installation considerations

The UPS system can be installed where there is TN or TT power

distribution system.

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.

The UPS equipment operating environment must meet the weight

requirements shown in Table 4, and the size requirements shown in

Table 3.

Table 3. Dimensions

8-20 kW

[mm]

30-40 kW

[mm]

Shipping dimensions

(WxDxH)

540 x 857 x 1,460

750 x 820 x 1,975

Cabinet dimensions

(WxDxH)

335 x 750 x 1,300

480 x 750 x 1,750

Table 4. UPS cabinet weights with cardboard packaging

8-20 kW

30-40 kW

Shipping weight

293 kg

558 kg

Installed weight

280 kg

532 kg

Floor loading

1,007 kg/m2

1,478 kg/m2

* Note that maximum internal batteries are included with all the models.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 5.

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

for incorporation in larger equipment.

Table 5. UPS cabinet minimum clearances

8-20 kW

30-40 kW

From the top of the cabinet

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

Figure 8. UPS cabinet clearances. See Table 5.

• X = clearance at the back of the UPS cabinet

• Y = clearance at the top of the UPS cabinet

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 6.

Table 6. 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

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

Figure 9. 93PS 8-40 kW UPS dimensions

4.3.2 UPS system power wiring preparations

NOTE: If you are installing a maintenance bypass, provide one of the

following:

•

a minimum of 2 separate feeds with upstream feeder breakers

•

a single feed with 2 upstream feeder breakers: one for the UPS or

rectifier input breaker and one for the maintenance bypass input.

Do not use a single feed or a single feeder breaker to supply

•

the maintenance bypass and the UPS, or

•

the maintenance bypass and the rectifier input breaker.

If a bypass input breaker is installed in the maintenance bypass and a

single-feed UPS is being installed, a single feed to the maintenance

bypass is acceptable for supplying both the UPS and the bypass.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 7. 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Table 7. 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*16

4*25

Rectifier fuse [A]

20

32

40

63

80

Bypass fuse [A]

20

32

40

63

80

PE cable [mm2]

1*6

1*10

1*16

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 8. 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*35

Battery fuse [A]

63

160

PE cable [mm2]

1*16

NOTE: Note that 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

º

C rated copper cables.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

When connecting external batteries to 93PS UPS, Eaton recommends

that you use the following NZM series molded case circuit breakers:

TYPE

ARTICLE No

With 93PS 8-20 kW

NZM1-A63

259083

With 93PS 30-40 kW

NZM1-A160

281234

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

Table 9. Rated and maximum currents for rated power and voltage

Rated

power

Rated

voltage

Rectifier input

UPS output /

bypass

Battery

[kW]

[V}

Rated

current

[A]

Maximum

current

[A]

Rated

current

[A]

Maximum

current

[A]

Rated

current

[A]

Maximum

current

[A]

8

380

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

Rated

power

Rated

voltage

Rectifier input

UPS output /

bypass

Battery

[kW]

[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% continuous 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.

See Figure 10 and Figure 11 for power cable terminations.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 10. 93PS UPS 8-20 kW power cable terminals

1.

X1: rectifier input, N

2.

X1: rectifier input L1

3.

X1: rectifier input L2

4.

X1: rectifier input L3

5.

X2: bypass input, N

6.

X2, bypass input, L1

7.

X2: bypass input L2

8.

X2, bypass input L3

9.

X3: UPS output, N

10.

X3: UPS output, L1

11.

X3: UPS output, L2

12.

X3: UPS output, L3

13.

X4: external battery cable +

14.

X4: external battery cable –

15.

TB20, external battery trip

16.

PE

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 11. 93PS UPS 30-40 kW power cable terminals

1.

X1, rectifier input, N

2.

X1, rectifier input,L1

3.

X1, rectifier input, L2

4.

X1, rectifier input, L3

5.

External battery +

6.

Bypass input, N

7.

Bypass input, L1

8.

Bypass input, L2

9.

Bypass input, L3

10.

External battery –

11.

UPS output, N

12.

UPS output, L1

13.

UPS output, L2

14.

UPS output, L3

15.

TB20, external battery trip 1

16.

TB21, external battery trip 2

17.

PE

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 11.

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

is required by codes. Refer to Table 7 for wiring requirements. If a

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Table 10. UPS power cable terminal torques

UPS frame

Function

Tightening torque

93PS 8-20 kW

X1, X2, X3: L1, L2, L3, N

1.6

X4: battery +/-

3.0

PE (ground)

3.0

93PS 30-40 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 9 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 9. The recommended line-to-line load unbalance is 50% or less.

Source protection for the AC input to bypass must suit the

characteristics of the load and take into account effects such as inrush or

starting current.

Bypass input and output overcurrent protection and bypass, output and

accessory disconnect switches must be provided by the user.

4.4 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

3.

Open the UPS package. The

roof of the package is used as a

ramp for moving the UPS off

the pallet.

4.

Place the ramp on the floor and

attach it to the pallet with nails

or screws so that it can be

safely used for wheeling the

UPS off the pallet.

5.

If the leveling feet are not fully

retracted, turn them until they

are retracted.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

After you have removed the shipping brackets and retracted the leveling

feet, do not use a forklift to move the unit while it is still on the pallet.

Note that the UPS cabinet is heavy and there are casters under the

cabinet.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

qualified service personnel such as a licensed service engineer from the

manufacturer or from an agent authorized by the manufacturer.

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 12 and

Figure 13.

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. 93PS UPS 8-20 kW gland plate and connector locations

Figure 13. 93PS UPS 30-40 kW gland plate and connector locations

1.

Connectors

2.

Gland plate

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

1.

To gain access to the terminal

blocks, remove the screws

securing the gland plate at the

back of the UPS.

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 10

and Figure 11.

5.

Route the communication

cables through the oval hole at

the top of the unit to the front

of the unit.

6.

Connect the communication cables to the respective terminals and

peripherals. For detailed information, see Figure 22 and Sections 5.4

and 5.5.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

9.

Connect the internal batteries.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

If 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

other battery types are to be used, 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 energized (controlled) through connectors TB20 and TB21

(TB21 available only in the 30-40 kW UPS). The default voltage of the

shunt trip coil is 24 Vdc.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 14. Battery trip wiring, TB20

Figure 15. Battery trip wiring, TB21

A

External battery breaker

1

Pin 1, shunt trip coil +

2

Pin 2, shunt trip coil -

3

Pin 3, AUX contact

4

Pin 4, AUX contact return

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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.

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 10 and Figure 11.

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

instructions given in Section 4.3.2. See Table 7 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 16 shows the NO and NC connections of the EPO switch.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

EPO connector (front view):

• A = Normally open

• B = Normally closed

Figure 16. Connections of the EPO switch

Table 11. Remote EPO wire terminations

From remote

EPO switch

To user interface terminal block

EPO in UPS cabinet

Remarks

NO

3-4

NC

1-2

Wire jumper between 1-2

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 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 signal interface

These inputs are located behind the UPS door, in the top section of the

UPS. See Figure 22 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 by a service engineer to be activated by various

events.

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 6. For installation and setup of a MiniSlot card, please contact

your Eaton representative.

To install wiring to the connections:

1. If not already installed, install the LAN drops.

2. Open the front door of the UPS.

3. To remove the MiniSlot cover plate, remove the 2 screws securing

the plate.

4. To install the MiniSlot communication device, push it all the way in.

5. Secure the MiniSlot communication device with 2 screws.

6. Route and install the LAN and other cables to the appropriate

MiniSlot cards. The cable route is through the signal cable canal in

the top section of the UPS.

7. For operator instructions, refer to the manual supplied with the

MiniSlot card.

8. When all the wiring is completed, close the front door and secure it

with the latch.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 in parallel units which are equipped with an internal

Maintenance Bypass Switch (MBS).

5.6.1 Power wiring overview

See Section 4.3.2 for the recommended cable and external fuse sizes

and installation practices.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

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 18 shows the principles of paralleled UPS systems

including MOBs and outputs from UPSs.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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)

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 20 and Figure 22).

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

A

External parallel connectors TB6-8

*)

First and last UPS are terminated with a jumper

**)

Shield connected 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 preparations

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 14.

• 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

• 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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 22. 93PS UPS 8-20 kW communication interfaces

1.

TB11, not used

2.

TB10, not used

3.

TB9, not used

4.

TB8, external CAN termination

5.

TB7, external CAN

6.

TB6, pull chain bus

7.

USB1, USB host (connection to

accessories)

8.

USB2, USB device (connection

to computer)

9.

MiniSlot 1

10.

TB1, signal input 1-5

11.

TB2, not used

12.

TB3, not used

13.

Serial COM port RS-232

14.

MiniSlot 2

15.

TB4, EPO

16.

TB5, relay output

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 23. 93PS UPS 30-40 kW communication interfaces

1.

MiniSlot 1

2.

MiniSlot 2

3.

TB6, pull chain bus

4.

TB7, external CAN

5.

TB8, external CAN termination

6.

TB9, not used

7.

TB10, not used

8.

TB11, not used

9.

USB1, USB host (connection to

accessories)

10.

USB2, USB device (connection

to computer)

11.

TB1, signal input 1-5

12.

TB2, not used

13.

TB3, not used

14.

Serial COM port RS-232

15.

TB4, EPO

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

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

5 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 93PS UPS 8-40 kW User’s and Installation Guide

Eaton UPS during a power outage that lasts longer than your available

battery runtime. Intelligent Power Protector can be remotely supervised

and managed by the Intelligent Power Manager (IPM) application.

Intelligent Power Software is delivered on a CD with the UPS.

Alternatively, you can download it from the Eaton web page. Some of

the advanced features of IPM require a license, contact your Eaton

representative for details.

6.3 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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

.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

Figure 29. Options for relay outputs configuration

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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

mode (see Figure 29).

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 31. Relays

1.

Cable exit opening for up to 12

mm (½”) conduit

2.

Signal input connector with

voltage supply

3.

K1 thru K5 terminal connections

for relay contacts to operator's

monitoring equipment

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 warnings.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 12. Status indicators

Indicator

Status

Description

Green symbol for normal

operation

On

The UPS is operating normally and

supplying power 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 battery mode is a normal

condition of the UPS, the green

indicator for normal operation also

remains illuminated.

Yellow symbol for bypass

mode

On

The UPS is in the bypass mode. The

critical load is supported by the bypass

source. The green indicator 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 immediate attention. The

screen shows the highest priority 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.

7.1.2.1 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 below the display.

Since the battery mode is a normal

condition of the UPS, the green symbol

for normal operation is also illuminated

below the display.

Bypass mode

Alarm

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 13. Menu structure of the 93PS UPS

Main menu

Submenu

Functions

Home

-

An overview of the UPS operation,

including information on load, efficiency

and consumption.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Main menu

Submenu

Functions

Meters

summary

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 meters.

Output meters

Detailed information on UPS or system

output meters.

UPM Power

Battery meters

Detailed information on UPS or system

battery meters.

Controls

System controls

Go Online

Go to bypass

Turn Off Charger

Load Off

UPS controls

Run battery test

Shut down UPS

Module controls

Start charger

Run battery test

Shut down module / Start module

UPM 1:

• Charger

• Battery test

• UPM status

UPM2:

• Charger

• Battery test

• UPM status

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Main menu

Submenu

Functions

EAA controls

ESS:

• Enable

• Disable

• Configure

VMMS:

• Enable

• Disable

• Configure

Enable High Alert

Clear Status

ABM:

• Enable

• Disable

• Configure

Clear Alarms

Clear Logs

Mimics

UPS mimics

An overview of the UPS operation,

including information on load, efficiency

and consumption. If there is an error, an

error indicator is displayed next to the

affected part. Active events log can be

opened by tapping the error indicator.

UPS module

map

Module map shows the status of each

UPM.

System

overview

System overview shows the status and

meters summary for each UPS.

ESS

The ESS mimic screen shows the

approximated consumption 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Main menu

Submenu

Functions

Statistics:

UPS, Battery

Statistics

summary

A summary of UPS statistics.

Statistics details

Details are available by pressing on

different statistics.

Settings

User

Configuration

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 14. 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 15. 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.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Setting

Description

Bypass Limits

Change the bypass voltage or bypass frequency.

Screen Saver

Timeout

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 button IMAGE 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.

There are 3 attempts to input 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

To start the UPS system:

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 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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. 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 front door.

5. Close the UPS input feeder circuit breaker.

6. Close the UPS bypass input feeder circuit breaker.

7. Wait for the UPS control panel to become active and indicate logic

power.

8. Repeat steps 1-7 for each single UPS in the system.

9. In the home screen, press

Controls

.

The System controls screen appears.

10. In the System Controls screen, check that the system status is

shown as SHUTDOWN.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

7.3.3 Transferring from the double conversion mode to the

bypass mode

CAUTION

In the bypass mode, the critical load is not protected from mains

power interruptions and abnormalities.

To transfer the critical load to the bypass mode, perform the following

procedure:

1. In the home screen, press

Controls

.

The System controls screen appears.

2. In the System controls screen, press the

Go to bypass

button.

The UPS system transfers to the bypass mode and the critical load

is immediately supplied by the bypass source. If the bypass source

is not available, the power processor remains on and an alarm

sounds.

The UPS system is now operating in the bypass mode and the yellow

bypass status indicator is illuminated. The UPM status is shown as

Ready. The system status is shown as ON BYPASS.

7.3.4 Transferring from the bypass mode to the double

conversion mode

To transfer the critical load to the double conversion mode, perform the

following procedure:

1. In the home screen, press

Controls

.

The System controls screen appears.

2. In the System controls screen, press the

Go online

button.

The UPS system transfers to the double conversion mode. If there

is not enough UPM capacity available, the system remains in the

bypass mode and an alarm sounds.

The UPS is now operating in the double conversion mode. The green

status indicator for normal operation is illuminated. The system status is

shown as UNIT ONLINE.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 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 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 latch.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 (

UPS 1

/

UPS 2

).

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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 (

UPM 1

/

UPM 2

).

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

To use the EPO switch:

1. Press the EPO pushbutton switch.

The input, output, and bypass backfeed relays open, the battery

breaker or disconnect is tripped, and the power module is turned off

immediately, without asking for verification.

To restart the UPS after using the EPO pushbutton, reset the EPO

switch and then follow the procedure in Section 7.3.1 or Section 7.3.2.

WARNING

Do not attempt to restart the system after using the EPO switch until

the conditions for safe start-up have been confirmed.

7.7 Turning the UPS from the double conversion mode to

maintenance bypass

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 integral 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

To turn the UPS to maintenance bypass:

1. Follow the normal start position:

Figure 33. Normal positions of the MBS switches and rectifier disconnect switch

(must be located in the site wiring

)

A

Maintenance bypass input

1

Maintenance Bypass Switch

(MBS)

B

Static bypass input

C

Rectifier input

D

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 and then

to the Bypass position.

4. Perform the LOAD OFF procedure as described in Section 7.3.7.

5. Turn off the rectifier switch to disconnect the UPS rectifier input.

6. 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

Maintenance bypass input

1

Maintenance Bypass Switch

(MBS)

B

Static bypass input

C

Rectifier input

D

Out

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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

Maintenance bypass input

1

Maintenance Bypass Switch

(MBS)

B

Static bypass input

C

Rectifier input

D

Out

2. Turn on the rectifier switch to connect rectifier input to the UPS.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

Figure 36. Double conversion mode

A

Maintenance bypass input

1

Maintenance Bypass Switch

(MBS)

B

Static bypass input

C

Rectifier input

D

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

CAUTION

An additional warning label, shown in Figure 37, 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.

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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

• 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 0 and Section 8.2.3 are allowed to be performed by the user.

8.2.1 Preventive maintenance plan

Year

Description

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Washing the

air filter

x x x x x x x x x x x x x x x x x x x x

Replacing

the fan

x x

Replacing

the battery

x x x x x x x x x x x x x x x

Capacitor

board

x x

* Timing of the battery replacement depends on the battery type and model.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

8.2.2 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 9.

4. Check that the UPS is in the normal operation mode (the green

status indicator for normal operation is illuminated). If the red alarm

status indicator is illuminated or the green status indicator for

normal operation is not illuminated, contact your service

representative.

8.2.3 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.

8.2.4 Periodic maintenance

Inspect the UPS periodically to determine if components, wiring, and

connections exhibit evidence of overheating. Pay particular attention to

bolted connections.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

8.2.5 Annual maintenance

CAUTION

Only authorized personnel that are familiar with the maintenance and

servicing of the UPS system are allowed to perform annual preventive

maintenance. Contact your service representative for more information

about service offerings.

8.2.6 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.

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

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.

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 Standards

Safety

IEC 62040-1: Uninterruptible power

systems (UPS) - Part 1: General and

safety requirements for UPS

IEC 60950-1: Information technology

equipment - Safety - Part 1: General

requirements (as referred through the

IEC 62040-1)

EMC

IEC 62040-2: Uninterruptible power

systems (UPS) - Part 2:

Electromagnetic compatibility (EMC)

requirements / Ed.2

• Emissions: category C2

• Immunity: category C3

Performance & tests

IEC 62040-3: Uninterruptible power

systems (UPS) - Part 3: Method of

specifying the performance and test

requirements

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 hazardous substances

in electrical and electronic equipment

WEEE

2012/19/EU on waste electrical and

electronic equipment (WEEE)

Eaton 93PS UPS 8-40 kW User’s and Installation Guide

ECO Design Directive

2009/125/EC establishing a

framework for the setting of eco-

design requirements for energy-

Eaton 93PS-8(20)-20-2x7Ah-LL-6 User Manual

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