Vertiv EXS 0010kTH1AFN01, Liebert EXS 20kVA, EXS 0015kTH1AFN01, EXS 0010kTH1AFN02, EXS 0020kTH1AFN01 User Manual

...

Liebert® EXS 10-20kVA

User Manual

EXS 10-20kVA

UNINTERRUPTIBLE POWER SUPPLY

USER MA

10H52260UM60 – rev. 1

NUAL

EXS

All rights, including rights of translation, reproduction in any form or other usage of this document, or any part of it, are reserved. Transgressors will be liable for damages. All rights, including rights deriving from the granting of patent or registration of utility, model or design, are reserved. Delivery subject to availability. The Manufacturer reserves the right to make changes and/or improvements to the product without prior notice and without incurring obligations.

EXS ma

2 User Manual 10H52260UM60 - Rev. 1 - 10/2017

differ from the model displayed on the front cover.

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Special Declaration

Safety of Personnel

1. This product must be installed by qualified professionals, engineers appointed by the manufacturer or an

authoriz

personnel.

2.Take the time to read this product manual and the safety precautions thoroughly before inst

commissioni

the safety of personnel.

3. This product is not intended for use with life support system

4. Ne

inju

Product Safety

ed agent. Failure to observe this condition may result in product malfunction, and compromise the safety of

ng this product. Failure to observe this condition may result in product malfunction, and compromise

ver attempt to dispose of the internal and external batteries in fire as they may explode, leading to seri

ries, or even death.

alling and

ous

1. If the product is to be stored or unused for extended periods, place the equipment in a clean, dry environment

within the specified temper

2. This product should be used in an appropriate operating environment. Consult the Site Preparation section for

ormation about the ideal operating and maintenance environment for this product

inf

3. This product is not designed for use in conditions and/or environments where:

 The temperature and relative humidity are outside the specified limits

 It is subject to vibration or shocks

 It is exposed to the presence of conductive dust, corrosive gases, salts, or inflammable gases

 It is exposed to heat sources or strong electro-magnetic interference

Disclaimer

VERTIV may not be held accountable or responsible for defects and malfunctions arising for the following reasons:

 Application range or operating environment outside the specified limits

 Unauthorized modification, incorrect installation or operation

 Force majeure

 Other actions not in compliance with the instructions in this manual

ature range

User Manual 10H52260UM60 - Rev. 1 - 10/2017 3

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Safety Precautions

Always observe the following safety symbols!

Used to alert the user to the risk of death or severe injury should the unit be used improperly.

Used to alert the user to the risk of injury or damage to the equipment should the unit be used improperly.

Used for instructions that the user must read carefully and observe, even if failure to do so may not result in damage.

This manual contains information concerning the installation and operation of single UPS modules and parallel systems of the Vertiv EXS 10kVA-20kVA UPS.

Read this manual thoroughly before installing, using and servicing the UPS.

Warning

This UPS has been designed for use in commercial and industrial environments. Installation restrictions or additional measures may be required to prevent disturbances.

Conformity and standards

This product complies with the Directives 2014/35/EU (low voltage safety) and 2014/30/EU (EMC), and the following UPS product standards: * IEC/EN62040-1+A1:2013 General safety requirements for UPS * IEC/EN62040-2:2006 EMC * IEC/EN62040-3 Performance requirements and test methods For more details, refer to Chapter 10 . Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved accessories only.

Warning: high earth leakage current

The unit must be connected to earth before it is connected to its AC mains input and battery power supplies. This equipment is fitted with an EMC filter. The earth leakage current ranges from 0 to 1000 mA. Transient and steady state earth leakage currents, which may occur when the equipment is started, should be taken into account when se4lecting the instantaneous RCCB or RCD devices. RCCB devices that are sensitive to unidirectional DC pulses (Class A) and immune to transient state current pulses must be selected. It is also necessary to take into account that the load earth leakage currents will be borne by the RCCB or RCD. The equipment must be earthed in compliance with the local electrical code of practice.

Warning

When selecting the UPS system upstream distribution protection devices, ensure that comply with the specifications indicated in 3.1.4 , and with the local electrical regulations.

Warning: backfeed protection

This UPS is fitted with a dry contact for use with an external automatic disconnecting device (not supplied) in order to prevent the UPS voltage from being fed back to the input terminals through the rectifier or bypass static switch circuit. A label must be placed on or near the all external primary input supply disconnecting devices to warn service personnel that the circuit is connected to a UPS. The text of the label must have the following meaning: Risk of voltage backfeed! Isolate the UPS, then check for hazardous voltages between all terminals, including the protective earth, before working on this circuit.

4 User Manual 10H52260UM60 - Rev. 1 - 10/2017

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ral safety precautions (For users)

Gene

Like other types of large power equipment, the UPS and battery circuit breaker box/battery cabinet contain high voltages.

This equipment meets the IP20 standard, and other safety panels are fitted inside the equipment.

The UPS may be operated in complete safety, provided the general instructions and the steps recommended in this manual

are followed.

Multip

le power inputs (For users)

This UPS system receives power from more than one source. All DC and AC power sources must be disconnected before

servicing.

This UPS includes several circuits that are energized by high AC as well as DC voltages. Check for voltage with both AC and

DC voltmeters before working inside the UPS.

User serviceable compon

All equipment maintenance and servicing procedures involving internal access require the use of a tool and should be carried

out by trained personnel only. There are no user-serviceable parts behind the covers that require a /key for removal.

Batt

ery voltage: 320Vdc - 540Vdc (For service personnel)

All battery maintenance and servicing procedures require the use of tools and should be carried out by trained personnel only.

Take special care when working with the batteries associated with this UPS. When connected together, the battery terminal

voltage will exceed 320Vdc and is potentially lethal.

Battery manufacturers supply details of the necessary precautions to be observed when working on, or in the vicinity of, a

large bank of battery cells. These precautions should be followed scrupulously at all times. Special attention should be paid to

the recommendations concerning local environmental conditions and the provision of protective clothing, first aid and fire-

fighting facilities.

Warning

When the internal fuse of the UPS is damaged, it must be replaced with fuse having the same electric parameters by qualified

personnel.

Important

The area housing the communication board contains static sensitive components, therefore it is necessary to adopt all the

appropriate ESD-proof measures before accessing this area.

ents (For service personnel)

Warning

In order to satisfy the conditional short circuit current rating, Icc at 10kA symmetrical rms, the specified upstream breakers

must comply with an IEC 60947 series standard.

User Manual 10H52260UM60 - Rev. 1 - 10/2017 5

This Manual describes the following devices

Product Model

Liebert EXS 10kVA (Standrad UPS) EXS 0010kTH1AFN01

Liebert EXS 15kVA (Standard UPS) EXS 0015kTH1AFN01

Liebert EXS 20kVA (Standard UPS) EXS 0020kTH1AFN01

Liebert EXS 10kVA (UPS with side cabinet) EXS 0010kTH1AFN02

Liebert EXS 15kVA (UPS with side cabinet) EXS 0015kTH1AFN02

Liebert EXS 20kVA (UPS with side cabinet) EXS 0020kTH1AFN02

EXS

6 User Manual 10H52260UM60 - Rev. 1 - 10/2017

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Contents

Chapter 1 Overview ......................................................................................................................................................................................................... 9

1.1 Features .......................................................................................................................................................................................................................................................................... 9

1.2 Design Conce

1.3 Parallel System ......................................................................................................................................................................................................................................................... 12

1.4 Operating Modes .................................................................................................................................................................................................................................................... 13

1.5 Battery Management

1.6 Battery Pro

pt ......................................................................................................................................................................................................................................................... 9

............................................................................................................................................................................................................................................ 15

tection .................................................................................................................................................................................................................................................. 16

Chapter 2 Mechanical Installation ............................................................................................................................................................................ 1

2.1 Precautions

2.2 Transportation ......................................................................................................................................................................................................................................................... 17

2.3 Tools .............................................................................................................................................................................................................................................................................. 18

2.4 Unpacking .................................................................................................................................................................................................................................................................. 19

2.5 Initial Inspection ..................................................................................................................................................................................................................................................... 21

2.6 Environmental Requirements

2.7 Mechanical Requirements

2.8 Installation Drawings .......................................................................................................................................................................................................................................... 23

Chapter 3 Electrical Installatio n ............................................................................................................................................................................... 2

3.1 Connecting the Power Ca

3.2 Wiring the Signal Cables .................................................................................................................................................................................................................................... 31

Chapter 4 Operator Control and Dis play Panel ................................................................................................................................................... 35

4.1 Introduction .............................................................................................................................................................................................................................................................. 35

4.2 LCD Menu Structure

4.3 LCD Screen Types .............................................................................................................................................................................................................................................. 40

4.4 Prompt Window ..................................................................................................................................................................................................................................................... 46

4.5 UPS Alarm Messa

bles ........................................................................................................................................................................................................................ 25

ge List .................................................................................................................................................................................................................................. 46

Chapter 5 Oper ating Procedure s ............................................................................................................................................................................. 5

5.1 Brief Introduction ................................................................................................................................................................................................................................................... 50

5.2 UPS Start-up Procedures

5.3 Procedures for Transferring Between Opera

5.4 UPS Shut-down Procedures ........................................................................................................................................................................................................................... 58

5.5 REPO ............................................................................................................................................................................................................................................................................ 58

5.6 Automatic Re

5.7 Language Selection ............................................................................................................................................................................................................................................. 59

5.8 Changing the Current Da

5.9 Setting the Password .......................................................................................................................................................................................................................................... 61

Chapter 6 Battery ......................................................................................................................................................................................................... 6

6.1 Introduction .............................................................................................................................................................................................................................................................. 65

6.2 Safety ........................................................................................................................................................................................................................................................................... 65

6.3 UPS Ba

6.4 Precautions For Installation Design ........................................................................................................................................................................................................... 68

6.5 Battery Installation Environment a

6.6 Battery Pro

User Manual 10H52260UM60 - Rev. 1 - 10/2017 7

start ................................................................................................................................................................................................................................................ 59

ttery .............................................................................................................................................................................................................................................................. 67

ting Modes............................................................................................................................................................... 54

te And Time ..................................................................................................................................................................................................... 60

nd Number of Batteries ......................................................................................................................................................... 68

6.7 Battery Installation and Connections ........................................................................................................................................................................................................ 69

6.8 Designing the Battery Room .......................................................................................................................................................................................................................... 70

6.9 Battery Maintena

6.10 Disconnecting or Connecting Internal Battery Terminals ........................................................................................................................................................... 71

6.11 Disposal of Used Batteries ............................................................................................................................................................................................................................. 72

Chapter 7 Para llel System and LBS System .......................................................................................................................................................... 7 3

7.1 General ......................................................................................................................................................................................................................................................................... 73

7.2 System Installation Procedures

7.3 Operating Procedures for Parallel Systems ........................................................................................................................................................................................... 75

7.4 LBS System .............................................................................................................................................................................................................................................................. 78

nce .......................................................................................................................................................................................................................................... 70

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Chapter 8 Opti ons ......................................................................................................................................................................................................... 8

8.1 List of Options ......................................................................................................................................................................................................................................................... 82

8.2 Option Introduction ............................................................................................................................................................................................................................................. 82

Chapter 9 Service And Maintena nce ...................................................................................................................................................................... 9

9.1 Fan Maintenance ................................................................................................................................................................................................................................................... 98

9.2 Battery Maint

9.3 Cleaning the UPS .................................................................................................................................................................................................................................................. 99

9.4 Checking the UPS Status ................................................................................................................................................................................................................................. 99

9.5 Checking the UPS Functions ......................................................................................................................................................................................................................... 99

Chapter 10 Specifications ........................................................................................................................................................................................ 100

10.1 Conformity and sta

10.2 Environmental Characteristics................................................................................................................................................................................................................. 100

10.3 Mechanical Specifications .......................................................................................................................................................................................................................... 100

10.4 Electrical Specifications (Inpu

10.5 Electrical Specifications (Intermediate DC Circuit) ....................................................................................................................................................................... 101

10.6 Electrical Specifications (Inverter Output) ........................................................................................................................................................................................ 102

10.7 Electrical Specifications (Bypass Input) .............................................................................................................................................................................................. 102

Appendix 1 LCD Parameter Settings .................................................................................................................................................................... 103

enance .......................................................................................................................................................................................................................................... 98

ndards .......................................................................................................................................................................................................................... 100

t Rectifier) ............................................................................................................................................................................................ 101

Appendix 2 Glossary .................................................................................................................................................................................................. 1

Appendix 3 Haz ardous Substances And Content ............................................................................................................................................ 106

8 User Manual 10H52260UM60 - Rev. 1 - 10/2017

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Chapter 1 Overview

This section provides a short introduction to the Liebert EXS 10kVA - 20kVA UPS (hereafter referred to as “the

UPS”), covering features, design concept, parallel system, operating mode, battery management and battery

protection.

1.1 Features

The UPS is connected between a critical load (e.g. a computer) and the mains power supply to provide high quality

power for the loads. The UPS provides the following advantages:



Increased power quality

The UPS protects its output against the variations in the input power supply by means of the intelligent controller.



Improved noise rejection

Due to the use of AC-DC-AC conversion, noise on the input power supply is effectively filtered, so that the load is

provided with a “clean” power supply.



Mains failure protection

If the input power fails, the UPS switches to battery operating mode so that the power supply to the loads is not

interrupted.



Compatible with two output modes

3-in 3-out (factory default) and 3-in 1-out (by installing an optional 3-in 1-out copper bar kit). Only authorized

personnel are permitted to change the wiring method and modify the corresponding parameters using the VERTIV

setting software.

1.2 Design Concept

System Design

This section introduces the working principle of the single UPS module. The UPS adopts AC-DC-AC conversion (as

shown in Figure 1-1). The first stage conversion (AC-DC) uses a three-phase, high frequency rectifier to convert the

three-phase input voltage into a stable DC bus voltage.

User Manual 10H52260UM60 - Rev. 1 - 10/2017 9

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Input

Output

Bypass input

Mains input

Rectifier input switch

Maintenance bypass switch

Static switch

Bypass input switch

Rectifier

Battery

Figure 1-1 Block diagram illustrating the working principle of a UPS single module

Battery charger

Inverter

Automatic inverter switch

Maintenance bypass

UPS output

Output switch

The UPS has its own battery charger and adopts advanced temperature compensation technology to effectively

prolong the battery service life. The inverter is principally based on the use of large power IGBTs, and adopts

advanced SVPWM control technology to reconvert the DC bus voltage to AC voltage.

When the mains is normal, the rectifier and inverter work together to supply the loads and charge the battery.

When the mains is outside normal limits, the rectifier stops working, and the battery supplies power to the loads

through the inverter. If the battery voltage falls to end of discharge (EOD) voltage and the mains has not yet

returned within the normal limits, the UPS will shut down (if the system uses split bypass configuration and the

bypass is normal, the system will transfer to bypass). The battery EOD voltage is pre-set. When the mains is

abnormal, the battery will continue to supply the UPS until the battery voltage reaches to EOD level, whereupon the

UPS shuts down; this period is known as the 'Backup Time'. The duration of the backup time depends on the battery

capacity and the loads.

Bypass

Thanks to the intelligent control function provided by the ‘Static Switch’ module (as shown in Figure 1-1), which

includes the controllable electronic switch, the loads may be supplied either by the inverter or the bypass. Under

normal operating conditions, the loads are supplied by the inverter, in which case the automatic inverter switch on

the inverter side is closed. In the event of an overload (after the overload delay period has elapsed) or inverter

failure, the inverter switch is opened, and the 'Static Switch' module transfers the loads automatically to the bypass.

In normal operating state, in order to guarantee the uninterrupted transfer between inverter and bypass, the inverter

output must be synchronized with the bypass.

Therefore, when the bypass frequency is within the synchronization range, the inverter control circuit will

synchronize the inverter output frequency with the bypass frequency and phase.

The UPS is also equipped with a manual maintenance bypass switch that can be used to shut the UPS down during

maintenance. In this condition, the bypass will supply the critical loads directly via the maintenance bypass.

Note

When the load is supplied by the bypass or maintenance bypass, the power quality & availability will be unregulated.

10 User Manual 10H52260UM60 - Rev. 1 - 10/2017

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System Control Principle

Normal operation

Normal mode: In this condition, the UPS mains input supply is within normal limits, the rectifier and inverter operate

normally, the load is supplied by the inverter, the battery circuit breaker is closed, and the battery is in the stable

floating charge state.

(Parallel System) Note: As the individual UPS module outputs are connected in parallel, the system checks that the

inverter control circuits are perfectly synchronized with one another and with the bypass in terms of both frequency

and phase, and that the output voltages are the same. The current supplied to the load is automatically divided

among the UPS units. A warning message appears while synchronization is in progress.

Mains abnormal

When the mains fails or is abnormal, the rectifier will stop working automatically, and the system will transfer to

battery output (through the inverter). The length of the operation time in battery mode depends on the load and the

battery capacity. During this period, if the battery voltage falls to the EOD level before the mains supply has

returned within normal limits, the inverter will stop working automatically, and the UPS operator control and display

panel will display the corresponding alarm messages. If the system uses split bypass configuration and the bypass is

normal, the system will transfer to bypass.

Mains recovery

When the mains returns within normal limits within the permissible time, the rectifier will start automatically (at this

point its output power will increase gradually) and supply the load and charge the battery again. This means that

the power supply to the load will not be interrupted.

Disconnecting the battery

To disconnect the external battery from the UPS system during maintenance, use the external isolation device. In

this condition, the battery backup function will not be available in the event of a mains failure, but none of the other

UPS functions and performance will be affected.

UPS module failure

In the event of an inverter failure, automatic inverter switch failure, or if the output fuse blows, the load will

automatically transfer to the bypass, and the output power supply will not be interrupted. Should this condition

occur, please contact your local VERTIV customer service centre for technical support.

(Parallel System) In the event of a fault on a UPS module, it will automatically exit the parallel system. If the system

is still capable of providing the power required by the load, the remaining modules will continue to supply the load

without interruptions. If the remaining modules are no longer capable of fulfilling the power requirements, the load

will automatically transfer to the bypass.

Overload

If the inverter is overloaded or the inverter current remains outside the specifications (refer to Table 10-6) longer

than the specified time, the load will automatically transfer to the bypass without any interruption in the power

supply to the load. If both the overload and the current are reduced to a level within the specified range, then the

load will be re-transferred to the inverter. In the event of an output short circuit, the load will be transferred to the

bypass, and the inverter will shut down. The transfer is determined primarily by the characteristics of the system

protection device.

In both the situations listed above, the UPS operator control and display panel will display the corresponding alarm

messages.

(Parallel System) The control logic system constantly monitors load requirements and controls the power supplied

by each UPS module. If an overload condition persists for longer than a pre-set period and the number of active

modules is unable to satisfy load requirements, the load will transfer to the bypass. The load is re-transferred to the

inverter if the power is reduced to a value that can be sustained by the number of active modules in the system.

User Manual 10H52260UM60 - Rev. 1 - 10/2017 11

Maintenance bypass

The UPS is equipped with a second bypass circuit, known as the maintenance bypass, which provides a safe

working environment for the engineers to carry out regular maintenance or repair the UPS system, while providing

unregulated mains supply to the loads. The maintenance bypass can be activated manually selected by closing the

maintenance bypass switch, and disconnected by setting the switch to OFF.

Warning

If the UPS system consists of two or more UPS modules, and the load capacity exceeds the single module capacity, do not

use the internal maintenance bypass switch.

UPS Power Supply Switch Configuration

Figure 1-2 illustrates the block diagram of the UPS module. The UPS may be connected in split bypass (where the

bypass is supplied by a separate mains input source) or common input configuration. In the split bypass

configuration, the static bypass and maintenance bypass share the same independent bypass power supply. Where

a separate power source is not available, the input supply connections of the bypass input switch (Q2) and rectifier

input switch (Q1) should be linked together (these terminals are linked before delivery) so that the bypass input and

rectifier input use mains power from the same source.

During the normal UPS operation, all switches should be closed, with the exception of the maintenance bypass

switch Q3.

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Figure 1-2 UPS power supply switch configuration

Circuit Breaker

The external battery shall be connected to the UPS via the circuit breaker.

1.3 Parallel System

Up to four UPS modules may be parallel-connected to form a parallel system and increase the system capacity and

reliability. The load is shared equally between the parallel connected UPS modules.

Also, two UPS modules or parallel system may be used to form a dual bus system (LBS). Each UPS module or

parallel system has an independent output. Output synchronization is achieved through the LBS cable, thus

enabling seamless load transfer between the two systems.

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Parallel System Features

1. The hardware and software of a parallel system are identical to those of the individual modules. The parallel

system is configured by modifying the respective settings in the configuration software or via the control panel.

2. Parallel cables are connected in a ring, providing both system reliability and redundancy. LBS cables are

connected between any two UPS modules of each bus. The intelligent parallel logic provides the user with maximum

flexibility. For example, the UPS modules in a parallel system can be shut down or started up in any order. Transfers

between normal mode and bypass mode of operation are seamless and self-recoverable, i.e, when the overload is

cleared the system will revert automatically to its original operating mode.

3. The total load of the parallel system can be queried from the LCD screen on each UPS

Parallel System Requirements

A group of paralleled modules behave as if it were one large UPS with the advantage of providing increased

reliability. To ensure that all modules are utilised equally and to comply with relevant wiring rules, the following

requirements apply:

All UPS modules must be of the same rating and must be connected to the same bypass sour

2.The bypass a

If any RCD devices are installed they must be set-up appropriately and located upstream of the common neutra

line i

nput terminal. Alternatively, the device must monitor the protective earth current of the system. Refer to

nd rectifier input sources must be connected to the same neutral line input te

Warning: high earth leakage current before Contents.

module.

ce.

rminal.

1.4 Operating Modes

The UPS features the following operating modes:



Normal mode



Battery mode



Bypass mode



Maintenance mode



ECO mode



Parallel redundancy mode (system expansion)



LBS system mode



Common battery string mode

Normal mode

As shown in Figure 1-3, the mains is rectified by the UPS rectifier and then inverted by the inverter to supply

uninterrupted AC power to the loads. At the same time, the charger will charge the battery.

Mains input

Rectifier input switch

Rectifier

Inverter

Automatic inverter switch

UPS output

Output switch

Battery

User Manual 10H52260UM60 - Rev. 1 - 10/2017 13

Battery charger

Figure 1-3 Normal operating mode line diagram

Battery mode

As shown in Figure 1-4, the operating mode where the battery provides the backup power supply to the loads

through the rectifier and inverter is called battery mode. In the event of a mains failure, the system will transfer

automatically to battery mode with no interruption in the power supply to the load. When the mains power supply is

restored, the system will re-transfer automatically to normal operating mode without any manual intervention, and

with no interruption in the power supply to the load.

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Rectifier

Battery

Note

The battery cold start function may be used to switch the UPS on in Battery (charged) mode directly during mains failure. This means that the battery power supply can be used independently to improve the availability of the UPS.

Inverter

Figure 1-4 Battery operating mode line diagram

Automatic inverter switch

UPS output

Output switch

Bypass mode

As shown in Figure 1-5, in normal mode, in the event of an inverter failure, inverter overload or inverter manual shut

down, the static switch will transfer the load from the inverter side to bypass side, with no interruption in the power

supply to the load. In this case, if the inverter and bypass are not synchronized, there will be a transitory interruption

in the power supply to the load (not exceeding 20ms).

Static switch

Bypass input

Bypass input switch

Output switch

UPS output

Figure 1-5 Bypass operating mode line diagram

Maintenance mode

As shown in Figure 1-6, if it is necessary to service the UPS or carry out maintenance work on it, you may use the

manual maintenance bypass switch to transfer the load to maintenance bypass, with no interruption in the power

supply to the load. This maintenance bypass switch is fitted in all UPS modules and rated for full load of one module.

Maintenance bypass switch

Bypass input

Figure 1-6 Maintenance operating mode line diagram

Maintenance bypass

UPS output

ECO mode

If ECO mode is selected, all the power switche

s and the circuit breaker are closed, and the system selects the

bypass as the preferred source of power for the load, in order to save energy. When the bypass supply frequency

and voltage are within normal limits (adjustable), the load is powered by the bypass, with the inverter on stand-by;

when the bypass voltage and/or frequency is outside these pre-defined and adjustable limits, the system will

transfer to the inverter output. In this mode, the system can charge the battery normally.

14 User Manual 10H52260UM60 - Rev. 1 - 10/2017

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Bypass input

Mains input

Rectifier input switch

Static switch

Bypass input switch

InverterRectifier

UPS output

Output switch

Automatic inverter switch

Battery

Figure 1-7 ECO operating mode line diagram

Warning

The load is not protected against distortion on the mains voltage waveform in ECO mode.

Battery charger

Parallel redundancy mode (system expansion)

For higher capacity or higher reliability, or both, the outputs of multiple UPS modules can be programmed for

directly paralleling while a built-in parallel controller in each UPS module ensures automatic load sharing. The

parallel system may consist of up to four UPS modules. For the operating principle diagram of parallel redundancy

mode, see Figure 7-1.

LBS mode

A dual bus system consists of two independent UPS systems, each containing one or more parallel UPS modules.

The dual bus system provides high reliability, which makes it suitable for use with loads having multiple input

terminals. In the case of single-input loads, an STS may be installed to power the load. For the operating principle

diagram of LBS mode, see Figure 7-4.

Common battery string mode

In this mode, when the UPS modules (up to four UPS units) are connected in parallel, they share the same battery

string thus providing cost and space savings.

Note

Never use batteries having different brands, type or capacities in the same system. Common battery string mode is suitable

for parallel systems only, and is not compatible with LBS mode.

1.5 Battery Management

The following battery management functions are set by the service engineer using the VERTIV setting software.

Normal Function

1. Constant current boost charge

Uses a constant current (within battery charging limit) to charge the battery. This function can be used for fast

battery capacity recovery. It is possible to modify the value of the charge current.

2. Constant voltage boost charge

Uses a constant voltage to charge the battery. This function can be used for fast battery capacity recovery. In the

case of VRLA batteries, the maximum boost charge voltage should not exceed 2.4V/cell.

3. Float charge

User Manual 10H52260UM60 - Rev. 1 - 10/2017 15

This charging method is used for maintaining the battery at full capacity. The float charge voltage is generally low.

This function can be used to compensate for capacity loss due to battery self-discharging, and to recover battery

capacity.

In the case of VRLA batteries, the float charge voltage should be between 2.2V/cell and 2.3V/cell.

4. Automatic transfer to float charge

When the charge current is less than the 'Threshold of Equalize Charge to Float Charge’ value, the charger will

automatically transfer from boost charge to float charge. When the boost charge time exceeds the 'Equalize Charge

Protect Time Limit', the charger will be forcibly transferred to float charge in order to protect the battery.

5.Float charge temperature compensation (o

This fu

nction must be used together with the battery temperature detection device. The VERTIV battery

temperature sensor is a standard option designed to satisfy your requirements.

EOD

protecti

When the batte

is disconnected in order to avoid further battery discharge. The EOD voltage may be set to between 1.6V/cell and

1.85V/cell (VRLA).

ttery low pre-warning time

The battery low pre-warning time may be set to between 2min and 30min. The default setting is 2min.

mum battery discharge time

Maxi

When the battery is discharged at low current levels for extended periods, it will result in excessive discharge and

may even cause irreparable damage, for this reason it is essential to set-up a maximum battery discharge time in

order to protect it. This limit value is set-up by the service engineer using the VERTIV setting software.

9. Maximum boost charge protection ti

o protect against the battery overcharge damage caused by long time boost charge, it is essential to set-up a

protection time a protect time limit This limit value is set-up by the service engineer using the VERTIV setting

software.

ry voltage falls to the EOD level, the the battery converter shuts down automatically and the battery

ptional)

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Battery Temperature Compensation

The UPS system also features a battery charge temperature compensation function. When the ambient temperature

is increased, the DC bus voltage (which charges the battery) will be reduced correspondingly to provide optimal

charging voltage for the battery, thus prolonging the battery service life time. This function must be used together

with the VERTIV battery temperature detection device (standard option).

1.6 Battery Protection

The following battery protection functions are set by the service engineer using the VERTIV setting software.

Battery low pre-warning

The battery low pre-warning occurs before the EOD. The time can be set to between 2min and 30min.

EOD protection

When the battery voltage falls to the EOD level, the battery converter shuts down automatically. The EOD voltage

may be set to between 1.6V/cell and 1.85V/cell (VRLA).

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Chapter 2 Mechanical Installation

This section provides a brief introduction to the UPS mechanical installation procedures, including the precautions,

initial inspection before installation, environmental requirement, mechanical requirement and installation diagram.

2.1 Precautions

This section describes the environmental and mechanical requirements and mechanical considerations that must be

taken into account when planning the positioning and cabling of the UPS equipment.

Because no two sites are the same, this section does not provide the detailed installation procedures, and is only

intended to act as a guide for the general procedures and practices that should be carried out by the installing

engineer, so that they can handle the specific situation at the site correctly.

Warning: professional installation required

1. Do not dismantle the packaging without the permission of an authorised service engineer.

2. The UPS should be installed by an authorised engineer in accordance with the information provided in this section.

Warning: battery danger

Take special care when installing batteries. When connecting batteries, the battery terminal voltage will reach 320Vdc,

which is fatal to human beings.

1. Always wear safety glasses to protect the eyes from being damaged by arcing.

2. Remove all the metal items, including finger rings, watch, etc.

3. Use tools with insulated handles.

4. Wear rubber gloves.

5. If batteries are damaged or leak electrolyte they must be replaced. Place the battery into the container that can withstand

sulphuric acid and dispose of it according to the local regulations.

6. In the event of contact with electrolyte, wash the affected are with abundant clean water immediately.

2.2 Transportation

Rail and sea shipping are the recommended transportation methods. If road transportation is unavoidable, choose

roads that are less bumpy in order to protect the equipment.

The UPS cabinet is heavy (see Table 10-3 for the weight). We recommend using mechanical equipment such as an

electric forklift to unload and move the equipment to the place closest to the installation site.

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2.3 Tools

Warning

1. For reasons of safety, all installation tools used on live components must be insulated.

2. The tools listed in Table 2-1 are for reference only; please adapt to the actual requirements for on-site installation and

connection.

Name Drawing Name Drawing

Electric hand drill

Slotted screwdriver

Stepladder

Drill

Claw hammer

Table 2-1 Tools

Adjustable wrench

Cross head screwdriver

Forklift

Wire cutting pliers

Diagonal cutting pliers

Insulating shoes

Electrician’s knife

Insulating tape

Crimping pliers

Insulated torque wrench

Multimeter

Antistatic gloves

Cable ties

Insulating gloves

Heat shrinkable tube

Torque screwdriver

Clip-on ammeter

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2.4 Unpacking

Unpack the UPS and battery packages under the supervision of an authorized service engineer.

Proceed as follows:

emove the cart

1. R

emove the packing strap and lift the whole carton upwards, as shown in Figure 2-1.

on.

Removing carton from standard UPS

Removing carton from UPS with side cabinet

Figure 2-1 Removing cartons

2. Remove the fixing structural parts from the bottom pallet (see Figure 2-2), do not throw them away. Next, use the

orklift (inserting the forks at the points illustrated in Figure 2-2) to move the cabinet close the installation site.

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Remove the fixing structural parts

Inserting direction

Standard UPS UPS with side cabinet

Figure 2-2 Removing the bottom pallet

Remove the fixing structural parts

Inserting

3. After moving the cabinet to the installation site, you raise the adjustable feet and use the castors to move the

cabinet to its final installation position, finally, rotate the adjustable feet until they are in contact with the floor. See

Figure 2-3 for the finished installation.

Note

1. It is not necessary to install the fastening structural parts of the bottom pallet in the case of UPS with side cabinet

2. In the case of standard UPS with internal batteries, simply secure the fastening structural parts removed

in step 2 to the cabinet bottom (See right drawing); in the case of standard UPS without internal batteries,

install the fastening structure parts to both the left and right hand sides (See left drawing) based on the

right drawing to avoid tipping.

UPS without internal batteries UPS with internal batteries

Figure 2-3 Completed installation

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2.5 Initial Inspection

Before installing the UPS, carry out the following inspections:

1.Ensure that the UPS equipment room meets the environmental requirements specified in the product te

specifications, especially the ambient temper

Unpack the U

and out

side of the UPS and battery for any shipping damage. If there is any damage, report it to the carrier

immediately.

3.Verify the UPS label and confirm that the UPS model conforms to the information indicated on it

ttached to the rear of the door. The UPS model, capacity and the main parameters are marked on the label.

PS and battery under the supervision of an authorized service engineer. Visually inspect the

2.6 Environmental Requirements

Selecting the UPS Location

The UPS should be located in a cool, dry, clean-air indoor environment with adequate ventilation, and should be

located on concrete or other non-flammable, flat surfaces. The surrounding environment should be free from

conductive powders (such as metallic powder, sulphide, sulphur dioxide, graphite, carbon fibre, conductive fibre,

etc.), acid mist or other conductive media (strongly ionized substances). The environmental specifications should

comply with relevant international standard & specifications and the operating range (see Table 10-2) specified in

this manual.

The UPS uses forced cooling by internal fans. Cooling air enters the UPS through the ventilation grills at the front of

the cabinet and is expelled through the ventilation grills at the back of the cabinet. Do not obstruct the ventilation

holes (ventilation grills). The rear of the UPS should be kept a distance at least 200mm from the wall to avoid

blocking the UPS heat dissipation, thus reducing the UPS internal temperature and improving the UPS life.

If necessary, install indoor extractor fans to aid cooling-air flow and avoid temperature build-up in the installation

area.

chnical

ature, ventilation conditions, and the levels of dust.

inside

. The UPS label is

Note

Note 1: When the battery cabinet is installed near the UPS, the maximum allowable ambient temperature is dependent on the battery rather than the UPS. Note 2: If the UPS is operating in ECO mode, the power consumption will be less than in Normal mode. A proper air conditioning system shall be selected according to the normal operating mode.

Selection the Battery Location

Batteries generate a certain amount of hydrogen and oxygen at the end of the charging cycle, so the fresh air

volume of the battery installation environment must meet the EN50272-2001 requirements.

The ambient temperature is the main factor that affects the battery capacity and life. The normal operating

temperature of the battery is 20°C. If the ambient temperature is higher than 20°C, the battery life will be reduced. If

it is lower than 20°C, the battery capacity will be reduced. Under normal operating conditions, the acceptable

ambient temperature for the battery is 15°C to 25°C. The ambient temperature of the battery must be maintained

constant, and the battery must be kept away from heat sources and air outlets.

The battery may be installed inside the dedicated battery cabinet, which shall be positioned close to the UPS. If the

battery is placed on the raised floor, brackets shall be installed under the floor, just as for the UPS. In the case of

rack-mounted batteries or batteries that are installed remotely from the UPS, the battery circuit breaker shall be

installed close to the battery, and the cable lengths shall be kept to a minimum.

Storage

Should the UPS not be installed immediately, it must be stored in its original packaging in a location where it is

protected against excessive humidity and heat sources (see Table 10-2). The battery must be stored in a dry and

cool place with good ventilation. The most suitable storage temperature is between 20°C and 25°C.

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Warning

Recharge the battery at regular intervals during storage in accordance with the manufacturer’s instructions. During the

charge process, connect the UPS temporarily to the mains and activate the battery by recharging it.

2.7 Mechanical Requirements

Moving the Cabinet

Warning

1. Ensure that the load capacity of the lifting equipment used to move the UPS cabinet is sufficient.

2. The UPS is fitted with castors. When removing the UPS from the shipping pallet, take care to prevent it from sliding.

Ensure that sufficient personnel and lifting equipment are available when removing the shipping pallet.

3. Due to the weight of the UPS cabinet, the castors may only be suitable for use on flat surfaces.

4. The centre of gravity of the UPS cabinet is high, take care to prevent it tipping over when moving it

5. The cabinet must never be suspended vertically.

Caution

Take special care when moving the battery cabinet with the batteries installed, making sure that each battery string has

been secured and keeping movements to a minimum.

Ensure that the UPS weight does not exceed the load capacity of the lifting equipment. For information about the

weight of the UPS, refer to Table 10-3.

The UPS may be moved using a forklift truck or similar lifting equipment.

The castors may be used when it is necessary to move it over short distances.

Clearance

Because the UPS is not fitted with lateral grilles, there is no special clearance requirement on either side.

In addition to any local regulations, in order provide sufficient space for routine operations, such as tightening the

power terminals inside the UPS, it is recommended that clearance around the front of the UPS should be sufficient

to enable free passage of personnel with the door fully open. In addition, it is necessary to leave a clearance of at

least 200 mm at the rear of the cabinet in order to permit adequate circulation of the hot air expelled by the UPS.

Cable Access Mode

UPS cable access is from the rear of the cabinet.

For details, refer to 3.1.10 and 3.2.8 .

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2.8 Installation Drawings

Figure 2-4 Front/side/bottom view of the standard UPS (unit: mm)

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Figure 2-5 Front/side/bottom view of the UPS with side cabinet (unit: mm)

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Chapter 3 Electrical Installation

This section principally introduces the UPS electrical installation procedures, including the power cable and signal

cable connecting procedures and methods.

Once the mechanical installation procedure is complete, it is necessary to connect the power and signal cables to

the UPS. All signal cables, whether or not they are shielded, must be kept away from the power cables.

Warning

1. Do not switch the UPS on before the authorised service engineer arrives.

2. The UPS should be routed by an authorised engineer in accordance with the information provided in this section.

3.1 Connecting the Power Cables

System Configuration

The system power cable dimensions shall meet the following requirements:

UPS input cable

The UPS input cable dimension differs depending on the UPS power ratings and input AC voltages, provided that it

meets the requirement of maximum input current, including the maximum battery charge current, see Table 3-1.

UPS bypass and output cable

The UPS bypass and output cable size differs depending on the UPS power rating and output AC voltages, provided

that it meets the requirement of nominal output or bypass current, as shown in Table 3-1.

Battery cable

Each UPS is connected to the respective battery positive pole, negative pole and neutral line by three cables . The

battery cable dimension differs depending on the UPS power ratings, provided that it meets the battery discharge

current requirement when the battery voltage nears the EOD level, as shown in Table 3-1.

Maximum Steady State AC and DC Currents

The power cable must be selected according to the current and voltage values indicated in Table 3-1, as well as the

local wiring regulations, as well as taking environmental conditions (temperature and physical media) into

consideration; refer to Table 3B in IEC 60950-1.

Table 3-1 Max. steady state AC and DC currents

Rated current (A)

UPS power

(kVA)

10 (3-in 3-out ) 22 16 15 14 35/35/15 M6 3

10 (3-in 1-out ) 22 48 45 42 35/35/15 M6 3

15 (3-in 3-out ) 33 23 22 21 52/52/25 M6 3

15 (3-in 1-out ) 33 69 66 63 52/52/25 M6 3

20 (3-in 3-out ) 44 31 29 28 70/70/30 M6 3

20 (3-in 1-out ) 44 93 87 84 70/70/30 M6 3

Max. input

current

Output/bypass current

1,2

at full load

380V 400V 415V

Battery discharge

current (+, -, N) at

min. battery voltage

Bus stud bolt/nut

specification

Input/batte

ry/output/

bypass

cable

Recommende

d torque

(N.m)

When selecting the battery cables, a max. volt drop of 4Vdc is permissible at the current ratings given in Table 3-1. Avoid coiling

the cables as this would increase the electromagnetic interference (EMI).

1. Input mains current for rectifier and bypass.

User Manual 10H52260UM60 - Rev. 1 - 10/2017 25

2. Non-linear load (like switch power) affects the design of output and bypass neutral line. The neutral line current may exceed

the rated phase current, at most 1.5 times of the rated phase current.

Recommended CSA of UPS Cables

The recommended CSA of the UPS cables is listed in Table 3-2.

Table 3-2 Recommended CSA of the UPS cable (unit: mm2, ambient temperature: 25°C)

Model Input Output Bypass Neutral line Earth cable Battery

10 (3-in 3-out ) 10 10 10 10 10 10

10 (3-in 1-out ) 10 10 10 10 10 10

15 (3-in 3-out ) 10 10 10 10 10 10

15 (3-in 1-out ) 10 16 16 16 16 10

20 (3-in 3-out ) 10 10 10 10 10 16

20 (3-in 1-out ) 10 25 25 25 25 16

When the system is in common input configuration and in 3-in 1-out mode, because phase A powers the load, the input cable of

phase A must be selected according to Table 3-2. Input cables of phase B and phase C may refer to Table 3-2.

Selecting the UPS I/O Switch

Table 3-3 indicates the recommended UPS I/O switch capacity, the user may select it as required.

EXS

Table 3-3 Selecting the UPS I/O switch

Model Input port External input switch

(3-in 3-out )

(3-in 1-out )

(3-in 3-out )

(3-in 1-out )

(3-in 3-out )

(3-in 1-out )

Terminal block 32A (3P) 50A Terminal block 25A (3P)

Terminal block 32A (3P) 50A Terminal block 63A (1P)

Terminal block 50A (3P) 63A Terminal block 32A (3P)

Terminal block 50A (3P) 63A Terminal block 80A (1P)

Terminal block 63A (3P) 80A Terminal block 50A (3P)

Terminal block 125A (3P) 80A Terminal block 125A (1P)

Distance Between the UPS Connection Point and the Floor

See Table 3-4 for details.

Table 3-4 Min. distance between UPS connection point and floor

UPS connection point

Circuit breaker

Min. distance（mm）

Output port

External

output switch

Rectifier input 1000

Bypass input 1000

AC Output 1100

Battery 1100

PE terminal 1100

Notes

The following points are provided for general guidance only. If there are corresponding local regulations, such

regulations shall prevail.

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1. The protective earth cable dimension shall be selected according to the AC power failure level, cable length and

otection type. The grounding wire connection must use the shortest possible connection route.

2. In the case of cables that are required to handle large current, it may be easier to use multiple smaller cables in

allel.

par

3. When selecting the battery cable dimension, it is important to take the current value in Table 3-1 into account and

mind that the maximum permissible voltage drop is 4 Vdc.

bear in

Avoid coiling the cables as this would increase the electromagnetic interfer

Power Cable Connecting Terminal

The rectifier input, bypass input, output and battery power cables are connected to the corresponding terminals, as

shown in Figure 3-2.

Protective Earth

The protective earth cable must be connected securely to the PE input terminal (see Figure 3-2) using the fastening

bolt. All the cabinets and cable troughs shall be earthed according to the local regulations. The earthing wires shall

be secured in order to prevent them coming loose from the fastening screws if they are pulled.

Warning

Failure to earth the various elements as directed may result in EMI, electric shock or fire risk.

ence (EMI).

External Protective Device

To ensure safety, it is necessary to install external circuit breakers on the UPS input and battery lines. Because no

two installations are the same, this section is only intended to provide general practical guidelines for installation

engineers. Qualified installation engineers should be aware of the local wiring regulations and any other related

information

Rectifier and bypass input power supply

overcurrent and short circuit protection

1. Input

Install suitable protective devices on the mains input supply distribution line. The protective devices should provide

functions such as overcurrent protection, short circuit protection, isolation protection and tripping upon backfeed.

When selecting the protective devices, consider the power cable current-carrying capacity, system overload

capacity (see Table 10-6 and Table 10-7) and the short circuit capacity of the upstream power distribution.

2. Split bypass configurat

If the UPS

adopts the split bypass configuration, independent protective device shall be installed on both the

ion

rectifier input and bypass input distribution lines.

Note

1. The rectifier input and bypass input must use the same neutral line.

2. In the case of IT grid systems, a 4-pole protective device must be installed on the UPS external power distribution line.

3. Earth fault protection

If the ups

tream input power supply his fitted with an RCD, it is important to take the transient state and steady state

earth leakage current upon the start-up of the UPS into account.

The RCCB shall meet the following requirements:



Be sensitive to DC unidirectional pulses (class A) in the power distribution network



Be immune to transient current pulses



Have an average sensitivity of 0.3A - 3A (adjustable)

The R

CCB symbols are shown in Figure 3-1.

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Figure 3-1 RCCB symbols

The UPS is fitted with an internal EMC filter, therefore the protective earth cable leakage current is 0 - 1000mA. We

recommend confirming the RCD sensitivity of the upstream input power distribution and downstream power

distribution (to the load) lines.

External battery

The circuit breaker must be installed in order to protect external battery.

This circuit breaker is extremely important for the battery maintenance, and is generally installed close to the battery.

System output

The UPS output distribution line must be fitted with a protective device. The protective device must be different

from the input distribution protection switch and be able to provide overload protection (refer to Table 10-6 and

Table 10-7 ) .

Power Cable Connection Steps

For the UPS cable access mode, refer to 2.7.3 .

Connection terminals and cable routing method

Figure 3-2 shows the UPS power cable connection terminals. Figure 3-3 shows the power cable entry and routing

methods.

Note

1. Open the appropriate holes on the rear protective cover before routing the power cables. Install cable guards around the

rims of the hole to protect power cables against cutting.

2. Feed the power cables through the holes, then connect them to the corresponding terminals.

Figure 3-2 Power cable connection terminals (rear view)

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Figure 3-3 Power cables wiring diagram (rear cable access)

Warning

1. Before connecting the cables, make sure that all the external and internal UPS power switches are set to OFF, and post the

appropriate warning signs to prevent inadvertent operation of the switches.

2. Measure the voltages between the UPS terminals, and the voltages between the terminals and earth.

rning

1. The earth cables and neutral line must be connected in accordance with local and national codes of practice.

2. Failure to observe this condition may result in electric shock or fire risk.

Power distribution mode

Based on the user's requirements, it is possible to select one of the following I/O cable connection configurations:

 3-in 3-out, common input configuration (factory default)

 3-in 3-out, split bypass configuration

 3-in 1-out, common input configuration

 3-in 1-out, split bypass configuration

Connecting th

1. 3

-in 3-out, common input configuration (factory default)

e system input

Refer to Figure 3-4, connect the AC input cables to the three copper shorting bars between the rectifier input

terminals (mA-mB-mC) and the bypass input terminals (bA-bB-bC) in the cabinet. Connect the input neutral line to

the terminal N in the cabinet. Make sure that the phase rotation is correct.

User Manual 10H52260UM60 - Rev. 1 - 10/2017 29

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