GE Digital Energy SitePro 400 VAC CESeries 7 User manual

GE Consumer & Industrial
Power Protection
SP_060_S7_UPS_GE_01
Operating Manual
Uninterruptible Power supply
Digital Energy™
SitePro
60 kVA
400 VAC CE / Series 7
Manufactured by:
GE Digital Energy
General Electric Company
CH – 6595 Riazzino (Locarno)
Switzerland
T +41 (0)91 / 850 51 51
F +41 (0)91 / 850 51 44
www.gedigitalenergy.com

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Model: SitePro 60 kVA, Series 7
Date of issue: 01.03.2005
File name: OPM_SPE_XXX_60K_M12_7GB_V010
Revision: 1.0
Identification No.
Up-dating
Revision Concerns Date
COPYRIGHT © 2005 by GE Digital Energy
All rights reserved.
The information contained in this publication is intended solely for the purposes indicated.
The present publication and any other documentation supplied with the UPS system is not to be
reproduced, either in part or in its entirety, without the prior written consent of GE.
The illustrations and plans describing the equipment are intended as general reference only and are not
necessarily complete in every detail.
The content of this publication may be subject to modification without prior notice.

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Dear Customer,
We thank you for selecting our products and
are pleased to count you amongst our very
valued customers at GE.
We trust that the use of the SitePro
Uninterruptible Power Supply system,
developed and produced to the highes
t
standards of quality, will give you complete
satisfaction.
Please carefully read the Operating Manual.
It contains all the necessary information abou
t
the installation of the UPS.
Thank you for choosing GE !
Manufactured by: Distributed by: Your service contact:
g
GE Digital Energy
General Electric Company
CH – 6595 Riazzino (Locarno)
Switzerland

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Preface
Congratulations on your choice of a SitePro Uninterruptible Power Supply (UPS).
It will keep you away from any trouble due to unexpected power problems.
This manual describes how to prepare the installation site, provides weight and
dimensions and procedures for moving, installing and connecting the UPS, and details of
maintenance procedures suggested to preserve maximum reliability.
It explains the function of the UPS module, the purpose and location of the switches, the
meaning of the system events related to the front panel indication, and provides
procedures for starting and stopping the equipment.
While every care has been taken to ensure the completeness and accuracy of this manual,
GE assumes no responsibility or liability for any losses or damages resulting from the use
of the information contained in this document.
WARNING!
SitePro 60 kVA is a product for restricted sales distribution to informed partners.
Installation restrictions or additional measures may be needed to prevent disturbances.
We recommend that this manual be kept next to the UPS for future references.
If any problems are encountered with the procedures contained in this manual, please
contact your Service Centre before you proceed.
This document shall not be copied or reproduced without the permission of GE.
Due to technical improvements, some of the information contained in this manual may be
changed without notice.
Safety instructions
Read carefully the safety instructions contained on the following page before the
installation, start-up and maintenance of the UPS, options and battery.
Pay attention to the rectangular boxes included in the text:
They contain important information or warning concerning electrical connections and
personnel safety.
Parallel version secured with RPA
When included in the text, this symbol refers to operation
needed only for parallel system.

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Table of contents Page
1SAFETY RULES............................................................................................................................................... 7
1.1 SAFETY SYMBOLS AND WARNINGS...........................................................................................................................................9
2INTRODUCTION.......................................................................................................................................... 10
3DESCRIPTION.............................................................................................................................................. 11
3.1 BLOCK DIAGRAM AND MAIN ELEMENTS.............................................................................................................................. 11
3.2 OPERATION MODES....................................................................................................................................................................... 12
3.2.1 Normal operation mode VFI (Voltage Frequency Independent)..................................................................................... 12
3.2.2 SEM mode operation (Super Eco Mode)..................................................................................................................................... 12
3.2.3 Mains failure operation ..................................................................................................................................................................... 13
3.2.4 Mains recovery operation................................................................................................................................................................ 13
3.2.5 Automatic Bypass ............................................................................................................................................................................... 14
3.2.6 Manual Bypass ..................................................................................................................................................................................... 14
3.3 PARALLEL SYSTEM OPERATION................................................................................................................................................ 15
3.3.1 Introduction to the parallel system ............................................................................................................................................. 15
3.3.2 Features of RPA parallel system ................................................................................................................................................... 16
3.3.3 System control...................................................................................................................................................................................... 16
3.3.4 Synchronization.................................................................................................................................................................................... 16
3.3.5 Load sharing .......................................................................................................................................................................................... 16
3.4 RECTIFIERS PARALLELED ON THE SAME BATTERY........................................................................................................... 17
3.5 SERVICE AND TECHNICAL SUPPORT...................................................................................................................................... 18
3.6 WARRANTY........................................................................................................................................................................................ 18
3.7 RECYCLING AT THE END OF SERVICE LIFE........................................................................................................................... 19
4INSTALLATION............................................................................................................................................ 20
4.1 TRANSPORT....................................................................................................................................................................................... 20
4.1.1 Dimensions and weight .................................................................................................................................................................... 20
4.2 DELIVERY ............................................................................................................................................................................................ 21
4.3 STORAGE ............................................................................................................................................................................................ 21
4.3.1 Storage of the UPS .............................................................................................................................................................................. 21
4.3.2 Storage of Battery............................................................................................................................................................................... 21
4.4 PLACE OF INSTALLATION ............................................................................................................................................................ 22
4.4.1 UPS location ........................................................................................................................................................................................... 22
4.4.2 Battery location.................................................................................................................................................................................... 23
4.5 VENTILATION AND COOLING..................................................................................................................................................... 24
4.6 UNPACKING ...................................................................................................................................................................................... 25
4.7 ELECTRICAL WIRING...................................................................................................................................................................... 26
4.7.1 Mains input connection..................................................................................................................................................................... 26
4.7.2 Input/output overcurrent protection and wire sizing.......................................................................................................... 27
4.8 WIRING CONNECTION.................................................................................................................................................................. 28
4.8.1 Power connections.............................................................................................................................................................................. 28
4.8.2 Choice of AC input for the power supply .................................................................................................................................. 29
4.8.3 Functioning as frequency converter........................................................................................................................................... 30
4.9 RPA PARALLEL SYSTEM CONNECTION .................................................................................................................................. 31
4.9.1 Power wiring of parallel units......................................................................................................................................................... 31
4.9.2 Parallel control bus connection..................................................................................................................................................... 32
4.9.3 Control bus cable location............................................................................................................................................................... 34
5LAYOUT........................................................................................................................................................ 36
5.1 LAYOUT SITEPRO 60 KVA ............................................................................................................................................................ 36

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6CONTROL PANEL........................................................................................................................................ 37
6.1 CONTROL PANEL............................................................................................................................................................................. 37
6.2 TABLE OF FUNCTIONS AND INDICATIONS ON CONTROL PANEL.............................................................................. 37
7LCD SCREEN................................................................................................................................................ 39
7.1 METERING MODE............................................................................................................................................................................ 40
7.2 ALARMS............................................................................................................................................................................................... 44
7.3 PARAMETERS .................................................................................................................................................................................... 45
7.4 EDIT MODE......................................................................................................................................................................................... 47
7.5 MEANING OF THE USER PARAMETERS.................................................................................................................................. 50
7.6 DESCRIPTION OF THE CHINESE LCD OPERATION ............................................................................................................ 56
7.7 EVENTS (ALARMS AND MESSAGES)......................................................................................................................................... 57
7.7.1 Alarms list................................................................................................................................................................................................ 57
7.7.2 Messages list.......................................................................................................................................................................................... 60
7.7.3 Event report SitePro ............................................................................................................................................................................ 62
8OPERATION................................................................................................................................................. 63
8.1 START-UP PROCEDURES.............................................................................................................................................................. 63
8.1.1 Initial start-up ........................................................................................................................................................................................ 64
8.1.2 Start-up procedure after maintenance shut down.............................................................................................................. 67
8.1.3 Start-up an additional unit in a redundant parallel system............................................................................................. 69
8.2 SHUT DOWN PROCEDURES ....................................................................................................................................................... 70
8.2.1 Complete Shut Down ......................................................................................................................................................................... 71
8.2.2 Maintenance shut down of UPS system ................................................................................................................................... 73
8.2.3 Shut down of a single unit UPS in a parallel system............................................................................................................ 75
9CUSTOMER INTERFACE............................................................................................................................. 76
9.1 CUSTOMER INTERFACE ................................................................................................................................................................ 76
9.1.1 Serial Port J3 - RS232 (sub D, female 9 pin).............................................................................................................................. 77
9.1.2 Serial Port J11 - RS232 (sub D, female 9 pin) - Option......................................................................................................... 77
9.1.3 Output signals on voltage-free contacts .................................................................................................................................. 78
9.1.4 Programmable input free contacts ............................................................................................................................................. 78
9.1.5 EPO (Emergency Power Off)............................................................................................................................................................ 79
9.1.6 Gen Set Signalling (GEN ON)............................................................................................................................................................ 80
9.1.7 AUX external Maintenance Bypass ............................................................................................................................................. 80
10 OPTIONS...................................................................................................................................................... 81
10.1 COMMUNICATION OPTIONS ...................................................................................................................................................... 81
10.2 BUILT IN UPS OPTIONS................................................................................................................................................................. 81
10.3 OPTIONS IN ADDITIONAL CABINETS ...................................................................................................................................... 82
10.4 DISPOSITION OPTIONS................................................................................................................................................................. 83
10.5 CONNECTION FOR OPTIONS...................................................................................................................................................... 84
10.5.1 Auxiliary Power Supply (APS) 24 VDC.......................................................................................................................................... 84
10.5.2 Top cable entry box............................................................................................................................................................................ 85
10.5.3 Remote Signalling Box (RSB) ........................................................................................................................................................... 86
11 MAINTENANCE ........................................................................................................................................... 87
12 NOTES .......................................................................................................................................................... 89
12.1 NOTES FORM .................................................................................................................................................................................... 89
13 ANNEX.......................................................................................................................................................... 90
13.1 TECHNICAL DATA SHEETS........................................................................................................................................................... 90
13.2 TECHNICAL DIAGRAMS ................................................................................................................................................................ 90

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1 SAFETY RULES
Save these instructions!
GENERAL
- Move the UPS in an upright position in its original package to the final destination room.
To lift the cabinets, use a forklift or lifting belts with spreader bars.
- Check for sufficient floor and elevator loading capacity.
- Check the integrity of the UPS equipment carefully.
If you notice visible damage, do not install or start the UPS.
Contact the nearest Service Centre immediately.
- WARNING! RISK OF ELECTRICAL SHOCK:
Do not remove covers, there are no user serviceable parts inside.
- After switching off takes 5 minutes for the DC capacitors to discharge because a lethally high voltage
remains at the terminals of the electrolytic capacitors.
- All maintenance and service work should be performed by qualified service personnel.
The UPS contains its own energy source (battery).
- The field-wiring outlets may be electrically live, even when the UPS is disconnected from the mains.
- Dangerous voltages may be present during battery operation.
- The battery must be disconnected during maintenance or service work.
- This UPS contains potentially hazardous voltages.
- Be aware that the inverter can restart automatically after the mains voltage is restored.
INSTALLATION
- This UPS must be installed and connected only by trained personnel.
- Verify accurately during Commissioning and Maintenance of the UPS, for the following:
Damaged components, squeezed wires and cables, or not correctly inserted plugs.
- After removing the sidewalls of the UPS, make sure that all earth connections when reassembling, are
correctly reattached.
- This UPS is intended for use in a controlled indoor environment free of conductive contaminants and
protected against animals intrusion.
- WARNING! HIGH EARTH LEAKAGE CURRENT:
Earth connection is essential before connecting to AC input!
- Switching OFF the unit does not isolate the UPS from the mains.
- Do not install the UPS in an excessively humid environment or near water.
- Avoid spilling liquids on or dropping any foreign object into the UPS.
- The unit must be placed in a sufficiently ventilated area; the ambient temperature should not exceed
35°C (95°F).
- Optimal battery life is obtained if the ambient temperature does not exceed 25°C (77°F).
- It is important that air can move freely around and through the unit. Do not block the air vents.
- Avoid locations in direct sunlight or near heat sources.
STORAGE
- Store the UPS in a dry location; storage temperature must be within -25°C (-13°F) to +55°C (131°F).
- If the unit is stored for a period exceeding 3 months, the battery must be recharged periodically (time
depending on storage temperature).
BATTERY
- The battery-voltage is dangerous for person’s safety.
- When replacing the battery, use the same number, voltage (V) and capacity (Ah).
- Proper disposal or recycling of the battery is required.
Refer to your local codes for disposal requirements.
- Never dispose of battery in a fire: they may explode.
- Do not open or mutilate battery: their contents (electrolyte) may be extremely toxic.
If exposed to electrolyte, wash immediately with plenty of water.
- Avoid charging in a sealed container.
- Never short-circuit the batteries.
When working with batteries, remove watches, rings or other metal objects, and only use insulated
tools.

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Safety instructions when working with battery
EXTERNAL BATTERY MUST BE INSTALLED AND CONNECTED TO THE UPS BY
QUALIFIED SERVICE PERSONNEL.
INSTALLATION PERSONNEL MUST READ THIS ENTIRE SECTION BEFORE HANDLING
THE UPS AND BATTERY.
DANGER!
Full voltage and current are always present at the battery terminals.
The battery used in this system can provide dangerous voltages, extremely high currents and
a risk of electric shock.
If the terminals are shorted together or to ground they may cause severe injury.
You must be extremely careful to avoid electric shock and burns caused by contacting battery
terminals or shorting terminals during battery installation.
Do not touch uninsulated battery terminals.
A qualified service person, who is familiar with battery systems and required precautions,
must install and service the battery.
The installation must conform to national and local codes.
Keep unauthorised personnel away from the battery.
The qualified service person must take these precautions:
1 Wear protective clothing, such as rubber gloves and boots and protective eye wear
Batteries contain caustic acids and toxic materials and can rupture or leak if mistreated.
Remove rings and metal wristwatches or other metal objects and jewelry.
Do not carry metal objects in your pockets where the objects can fall into the battery
cabinet.
2 Tools must have insulated handles and must be insulated so that they will not short battery
terminals.
Do not allow a tool to short between individual or separate battery terminals or to the
cabinet or rack.
Do not lay tools or metal parts on top of the battery, and do not lay them where they could
fall onto the battery or into the cabinet.
3 Install the battery as shown on the drawing provided with the battery.
When connecting cables, never allow a cable to short across a battery’s terminals, the
string of battery, or to the cabinet or rack.
4 Align the cables on the battery terminals so that the cable lug will not contact any part of
the cabinet or rack, even if the battery is moved.
Keep the cable away from any sharp metal edges.
5 Install the battery cables in such a way that the UPS or battery cabinet doors cannot pinch
them.
6 Do not connect the battery terminal to Ground.
If any battery terminal is inadvertently grounded, remove the source of the ground.
Contacting any part of a grounded battery can cause a risk of electric shock.
7 To reduce the risk of fire or electric shock, install the battery in a temperature and humidity
controlled indoor area, free of contaminants.
8 Battery system chassis ground (earth) must be connected to the UPS chassis ground
(earth).
If you use conduits, this ground conductor must be routed in the same conduit as the
battery conductors.
9 Where conductors may be exposed to physical damage, protect the conductors in
accordance with all applicable codes.
10 If you are replacing the battery or repairing battery connections, shut OFF the UPS and
remove the battery fuses.

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1.1 SAFETY SYMBOLS AND WARNINGS
Safety warnings
The text of this manual contains some warnings to avoid risk to the persons and to avoid damages to
the UPS system and the supplied critical loads.
The non-observance of the warnings reminding hazardous situations could result in human injury and
equipment damages.
Please pay attention to the meaning of the following warnings and symbols:
WARNING !
Referred to procedures or operations which could cause damages to the persons or to
the system, when not correctly operated.
NOTE !
Warns the user about important operations or procedures described in this manual.
Safety symbols
When the text includes one or more of the following symbols, that means exist a potentially hazardous
situations.
Please remind the meaning of each symbol.
CAUTION
Related to all the potentially hazardous situations which may result in injury.
DANGER OF PARTS ELECTRICALLY LIVE
Related to all the situation with potentially hazardous voltage.
DANGER OF EXPLOSION
Used to indicate conditions where exploding parts can cause serious injury.
DANGER OF CRUSHING
Used when moving the equipment due to the heavy weight.
DANGER OF OVERHUNG LOAD
Used when the equipment is lifted by a crane.
DO NOT TOUCH
Risk of parts with hazardous voltages or parts in movement.

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2 INTRODUCTION
An Uninterruptible Power Supply (UPS) provides the power for critical loads that need a reliable,
continuous, disturbance free supply.
In case the power provided by the Mains Fails, or exceeds the permitted tolerances, the power to supply
the Load is provided by the Battery for the specified time at the rated Load (or longer at a reduced Load)
or until the Mains power returns.
SitePro is a true double conversion VFI (Voltage Frequency Independent) UPS system where the Load is
continuously supplied by the Inverter through the Rectifier.
SitePro can be configured, if chosen, for the SEM mode (Super Eco Mode) permitting maximum energy
saving.
If the Inverter is not able to supply the required Output Voltage, or when overload or short-circuit on the
output occur, the Load is instantly transferred to the Mains via the Automatic Bypass.
The UPS automatically returns to normal mode when the failure condition is restored.
Key features:
More Critical equipment supported
Rated at 0.9 Power Factor, SitePro delivers more real power than other UPS in the market.
With today’s trend toward power factor corrected loads, SitePro can support more total Load than any
other UPS available, allowing you to support a greater number of today’s enterprise computing Power
Factor Corrected (PFC) equipment.
No single point of failure
Redundant Parallel Architecture (RPA) is an exclusive GE technology.
With RPA, SitePro UPS are controlled in a true peer-to-peer configuration where all critical elements and
functions (including Bypass) are redundant.
SitePro is designed to be the most reliable power protection system available on the market today.
High Efficiency
Using IGBT technology and Space Vector Modulation (SVM) strategy, SitePro offers low output voltage
distortion and provides efficiencies up to 93%.
Fully digital
Digital Signal Processor (DSP), Flash memory and SVM strategy are the technology corner stones of a
new age of power quality and power reliability.
Extremely flexible
Tailor made power protection to meet your individual installation requirements; SitePro offers various
options like input harmonic filters and our comprehensive JUMP software suite for mission control and
data protection to cover all your application needs.

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3 DESCRIPTION
3.1 BLOCK DIAGRAM AND MAIN ELEMENTS
Fig. 3.1-1 Block diagram
The SitePro system can be divided into the following main elements:
Control system
SitePro is designed with microprocessor-controlled signal processing circuits.
The interface between the operator and the unit is provided by the monitoring system on the front
panel.
This monitoring system consists of an active mimic diagram, a keyboard and a backlit display.
Rectifier
The standard rectifier consists of a 6-pulse SCR-bridge, which converts the 3-phase mains voltage into a
controlled and regulated DC-voltage.
This regulated DC-voltage is used to supply power to the inverter, and to provide charging power to the
battery.
Inverter
The inverter converts the DC voltage into a three-phase AC-voltage with constant amplitude and
frequency, which is completely independent and isolated from the AC-input voltage.
Automatic bypass
The automatic bypass consists of a static semiconductor-switch (SSM: Static Switch Module), used to
provide an uninterrupted transfer of the load from inverter to mains.
Back-feed Protection
All SitePro UPS's are equipped with an automatic system for the protection against voltage back feeding
towards Utility, through the bypass (Applied Standard IEC 62040-1).
This protection works automatically by opening contactor K6 (in series with the thyristors of the static
switch) and eventually K7, and acts in case of internal defects of the system, or due to wrong
manipulations on the maintenance bypass Q2.
Manual bypass
The manual bypass consists of a pair of manual switches Q1 and Q2, which removes the UPS from the
load for maintenance, while still supplying the load with power directly from the mains.
Battery
The battery supplies the DC power to the inverter when the mains is out of accepted tolerances.

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3.2 OPERATION MODES
3.2.1 Normal operation mode VFI (Voltage Frequency Independent)
Under normal conditions the load is
permanently powered by the inverter with
constant amplitude and frequency.
The rectifier, powered by the mains, supplies
the inverter and the battery-charger keeps the
battery fully charged.
The inverter converts the DC voltage in a new
AC sine wave voltage with constant amplitude
and frequency independently from the input
mains power.
Fig. 3.2.1-1 Block diagram normal operation mode
3.2.2 SEM mode operation (Super Eco Mode)
When the SEM mode is selected, and the
mains power is available, the Load is normally
powered through the Automatic Bypass.
When the mains voltage is detected out of the
prescribed tolerances, the Load is
automatically transferred to the Inverter.
When the Mains recovers, the Load returns to
the Automatic Bypass after a variable time
defined by the control unit.
Fig. 3.2.2-1 Energy flow in SEM mode operation
The SEM mode can be configured directly by the user for higher efficiency, considering the Mains
reliability and criticality of the Load.
The selection between the two operation modes “VFI mode and SEM mode”, or switching between
operation modes at required time, can be done through the UPS control panel (see Section 7.5-7).
In case of parallel system
SEM mode (Super Eco Mode) cannot be enabled for RPA Parallel System.
Attention: A single unit equipped with a RPA - Parallel board, must be considered as parallel, thus
disabling SEM.

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3.2.3 Mains failure operation
When the Mains is no longer within acceptable tolerances,
the Battery will provide the DC power to the Inverter.
The Inverter will maintain continuous AC power to the
Load until the Battery Voltage reaches the lower limit of
the Inverter operation capability.
During the discharge, the LCD screen displays the
estimated time the Battery can support the critical load.
Prior to complete Battery discharge, the "stop operation"
alarm (shutdown imminent) warns the operator that the
Battery is almost discharged and the UPS is about to shut
down.
Fig. 3.2.3-1 Block diagram Mains Failure operation
In case of parallel operation
With a parallel system for power capacity (see Section 3.3)
• With the Bypass Mains power available, a “Battery low” warning on any unit will cause the Load
to be transferred to Mains (after a selectable time delay).
• With Bypass Mains power not available, a “Battery low” warning on any unit will start the “stop
operation” timer (adjustable).
The Load will shut down at the end of the “stop operation” time period.
With a parallel system for redundancy (see Section 3.3)
• When a Battery low warning occurs on a unit not necessary to support the present load, this unit
will shut down after a timeout period (selectable).
The Load is shared between the other units.
• As the warning occurs on one unit necessary to support the present load, the system starts the
"stop operation" timeout (selectable).
The Load will shut down at the end of the “stop operation” time period.
3.2.4 Mains recovery operation
As soon as the AC input power recovers, the Rectifier will
start automatically, supplying DC power to the Inverter
and recharging the Battery.
If the Inverter was previously shut down due to low
Battery, the Load will be initially powered by Mains
through the Automatic Bypass.
When the Battery is sufficiently recharged to ensure a
minimum time of operation with the present load, the
Inverter will start automatically and the Load will be
transferred back to the Inverter.
Fig. 3.2.4-1 Block diagram Mains recovery operation
In case of parallel operation
When the AC input power recovers, the Rectifiers will start up sequentially, according to their
number in the parallel system. This minimizes the initial inrush current.
The Inverters will start up automatically, but only when the Battery has been sufficiently recharged
for a minimum runtime with the present load.
When enough Inverters to supply the Load have been restarted, the Load will be transferred from the
Automatic Bypass back to the Inverter output.

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3.2.5 Automatic Bypass
In normal operation, the Load is supplied by the
Inverter.
When the control system detects a fault in the
Inverter, an overload condition or a short-circuit
condition, the Automatic Bypass will transfer the
critical Load to the Mains without interruption.
When the Inverter recovers, or the overload or
short-circuit condition is corrected, the Load will
be automatically transferred back to the
Inverter.
If the UPS is unable to return to normal mode
following an automatic transfer to Bypass mode,
an alarm condition will be initiated.
A Manual Bypass (operator initiated) will not be
considered as an alarm condition.
Fig. 3.2.5-1 Block diagram Automatic Bypass
In case of parallel operation
Each unit has its own internal Bypass.
These units are continuously exchanging information, enabling all of the internal Bypass circuits in a
parallel system to operate simultaneously.
If the Inverter of a unit fails, its Bypass circuit remains available to the parallel system.
It is excluded only if the unit is separated from the common bus by opening its output switch Q1.
3.2.6 Manual Bypass
The Manual Bypass circuit consists of manual
switches Q1 and Q2, which permits transfer of
the Load directly to the unconditioned AC power
without interruption, leaving the UPS available
for maintenance.
Fig. 3.2.6-1 Block diagram Manual Bypass

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3.3 PARALLEL SYSTEM OPERATION
3.3.1 Introduction to the parallel system
Two or more equal power units can be paralleled to increase the output power (paralleling for
capacity) or to improve the overall reliability of an UPS system (paralleling for redundancy).
The outputs of parallel units are connected to a common power bus, and in normal operation the units
connected on the parallel bus share the Load equally.
The modular concept of SG Series allows parallel operation of up to 8 units, without using paralleling
switchgear, external bypass circuits or common control circuitry (see Fig. 3.3.1-1).
Parallel units for power capacity
Several units can be paralleled in order to achieve output power greater than the maximum power of a
single unit.
The maximum total power shared between the paralleled units is equal to the total installed nominal
power.
In the event of a failure of one unit, the power supplied by the UPS system becomes insufficient and the
Load will be transferred to the Mains Bypass source.
Parallel units for redundancy
The nominal power rating of the nout of n+1 redundant paralleled modules must be equal to or higher
than the required Load power.
The Load will be equally shared by the n+1 units connected on the output bus.
Should one of the n+1 paralleled units trip Off-line, the remaining (n) modules will supply the load,
maintaining conditioned power to the critical load.
From this results higher reliability and security for the Load plus a higher MTBF (Mean Time Between
Failures).
Fig. 3.3.1-1 Block diagram parallel system operation

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3.3.2 Features of RPA parallel system
The SitePro parallel system is designed to provide a complete Redundant Parallel Architecture, and is
free from common equipment.
Not only the Inverters but also the Bypass functions are redundant.
When one UPS needs maintenance or service, the Load is powered by the other units.
The redundant communication bus to which all units are connected keeps each unit informed about the
status of all the other units.
The control panel located on each unit allows controlling and monitoring the status of this unit.
3.3.3 System control
A high-speed redundant, serial communication bus guarantees the exchange of data and thus the
communication between the CPU's of each unit.
Each module controls is own function and operational status and communicates with all other modules,
in order to act or react if necessary, adapting to the new conditions.
3.3.4 Synchronization
All units are identical, but one unit is arbitrarily selected as the reference and all the other units
synchronize to this unit, which in turn synchronizes to the Mains Bypass voltage, as long as the latter is
within tolerances.
In case of reference failure, another unit in the parallel system is automatically chosen to take over the
reference role.
The Bypass Input for all the units of the parallel system must be supplied from the same AC source (no
phase shift allowed between them).
3.3.5 Load sharing
On each unit of the parallel system, Inverter Output Voltage and Current are measured and applied to a
Load sharing bus.
An eventual difference between the units is therefore automatically equalized.
NOTE !
It is strongly recommended that no transformers, automatic circuit breakers or
fuses should be installed between the units output and the Load common bus bars.
However, it is recommended that a disconnection or isolation switch is installed in
order to totally isolate a unit if needed.

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3.4 RECTIFIERS PARALLELED ON THE SAME BATTERY
NOTE !
A parallel system with a Common Battery for two or more UPS, requires a
particular installation and adequate setting of some parameters, (accessible
only through password), and can therefore only be done by a qualified GE
engineer.
Usually each UPS Unit runs with its own Battery.
In case of parallel units running with a Common Battery (max. 4 UPS - see Fig. 3.4-1), the sharing circuit
between the individual UPS is integrated in the communication bus of the system in order to assure an
equal sharing of the Rectifiers output currents.
Fig. 3.4-1 Diagram RPA system with rectifiers on common battery
1 –
2 –
3 –
4 –
5 –
6 –
7 –
8 –
Rectifier
Inverter
Automatic Bypass
Manual Bypass
Mains power
Load bus bar
External battery fuse
Battery
Pay attention to the following recommendations:
• The units delivered for this functioning mode needs a special parameters setting, so they must be
prepared in advance before the installation.
• The installation must be performed only with the UPS system must be completely shut down.
• The AC rectifiers input power (5) must be the same, with the right phase rotation for each unit.
• Each rectifier must be set for the same floating DC voltage and the same battery current limitation.
• It is mandatory to install the fuses / MCB (7) on each line connecting the rectifiers to the common
battery for maintenance / safety reasons (for fuses rating see Section 4.7.2).
• In case one must be powered down for maintenance, switch-OFF the concerned unit before open
the DC fuses/MCB on the battery line (7).
• It is recommended to connect an external NO free contact “battery fuses” to the UPS and to enable
the function by setting the parameter (see Section 9.1).
• If an emergency generator set supply the UPS, and the free contact “Generator ON” is connected to
the Customer interface, connect a separate NO free contact on each parallel unit.
• The parameters enabling the battery test, both manual and automatic, must be set in the same
mode on all the units having the rectifiers on common battery.
• Do not connect the temperature sensor (standard delivery on SitePro 10 – 60 kVA) for automatic
battery floating voltage compensation.
• Do not enable the function Boost charge (parameter 87).

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3.5 SERVICE AND TECHNICAL SUPPORT
For any request of technical support please
contact your local Service Centre.
Stamp of your local Service Centre (see page 3)


SP_060_S7_Labelidentification_01
Q4
Q1
Q2
GE Digital Energy S.A. - 6595 RIAZZINO- LOCARNO (CH)
Serial Nr.
Series
Model
g
Prod. Year
MADE IN SWITZERLAND
Inp. Freq.
Outp. Freq.
Inp.Volt.
Outp. Volt. VAC
VAC
Hz
Hz
Unit Nr.
at Pow. factor
Outp. Current
Outp. Power
A
kVA
Fig. 3.5-1 Identification label
The requested data permitting to identify your
UPS are marked on the identification label
fixed on the front of the cabinet, behind the
lower front door.
For fast and efficient technical support please
mention the data marked on the identification
label.
3.6 WARRANTY
GE, operating through its authorised agents, warrants that the standard products will be free of defects
in materials and workmanship for a period of 12 months, after the date of the invoice, or such other
period as may be specified.
NOTE !
This warranty does not cover failures of the product which result from incorrect
installation, misuse, alterations by persons other than authorised agents, or
abnormal working conditions.

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3.7 RECYCLING AT THE END OF SERVICE LIFE
NOTE !
This product has been designed to respect the
environment, using materials and components
respecting eco-design rules.
It does not contain CFCs (Carbon Fluor Clorid) or HCFCs
(Halogen Carbon Fluor Clorid).
GE, in compliance with environment protection
recommends to the User that the UPS equipment, at the
end of its service life, must be recovered conforming to
the local applicable regulations.
WARNING !
Leads contained in the batteries is a dangerous
substance for the environment, therefore it must be
correctly recycled by specialised companies!

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4 INSTALLATION
4.1 TRANSPORT
The UPS is packaged on a pallet suitable for handling with
a forklift.
Pay attention to the centre of gravity.
The UPS must be moved in upright position.
Do not tilt cabinets more than +/- 10° during handling.
Move the UPS in it’s original package to the final
destination site.
Do not stack other packages on top: the upper side of the
cabinet could be damaged.
If the UPS has to be lifted by crane, use suitable carrying
belts taking note of the centre of gravity marked on the
package.
Take all necessary precautions to avoid damage to the
cabinet while hoisting the UPS.
Forklift
Crane
Fig. 4.1-1 UPS cabinets moving
NOTE !
Check for sufficient floor and elevator
loading capacity.
4.1.1 Dimensions and weight
Dimensions SitePro 60 kVA
(W x D x H)
SP_060_S7_UPSdimension_GE_01
800mm
1'450mm
57.08"
750mm
29.52"
31.49"
750 x 800 x 1’450 mm
29,52 x 31,49 x 57,08 inches
Weight SitePro 60 kVA
UPS rating Weight
Kg / lbs
Floor loading
kg /m2- lbs/sq.ft
SitePro 60 kVA 455 / 1004 759 / 156