GE TLE 625 UL S2 User manual

Critical Power
User Manual
Uninterruptible Power Supply
GE Consumer & Industrial SA
General Electric Company
CH – 6595 Riazzino (Locarno)
Switzerland
T +41 (0)91 / 850 51 51
F +41 (0)91 / 850 52 52
www.gecriticalpower.com
imagination at work
TLES_UL_625-750-1000_S2_UPS_GE_01
TLE Series 1000
TLE Series 625 & 750

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User Manual TLE Series 625 - 750 - 1000 UL S2
Model:
Issued by:
Approved by:
Date of issue:
File name:
Revision:
Identification No.:
TLE Series 625 - 750 - 1000 ULS2
Product Document Department – Riazzino - CH
R & D Department – Riazzino - CH
07/25/2018
GE_UPS_USM_TLE_SUL_M62_1M0_2US_V010
1.0
8600204516P
Up-dating
Revision Concern Date
COPYRIGHT © 2018 by GE Consumer & Industrial SA
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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User Manual TLE Series 625 - 750 - 1000 UL S2
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 TLE Series 625 -750 - 1000
Uninterruptible Power Supply S
ystem, developed and
produced to the highest standards of quality, will
give
you complete satisfaction.
Please read carefully the User Manual
, which contains
all the necessary information and describes all you need
to know about the use of the UPS.
Thank you for choosing GE!
START-UP AND COMMISSIONING
A GE GLOBAL SERVICES FIELD ENGINEER must perform start-
up and
commissioning of the UPS.
Please Contact GE. GLOBAL SERVICES at least two weeks prior to schedule
start-up and commissioning at 1-800-637-1738, or by E-
mail at
pqservic[email protected] .
Distributed in the USA by Your service contact
g
GE Consumer & Industrial SA
General Electric Company
CH – 6595 Riazzino (Locarno)
Switzerland
www.gecriticalpower.com
g
GE Energy Connections
Critical Power
3100 Technology – Suite 200
Plano, TX 75074
T: [phone]
E: [email protected]
www.geindustrial.com/products/
critical-power
g
GE Energy Connections
Critical Power
601 Shiloh Road
Plano, TX 75074
24/7 T: [phone]
24/7 F: [phone]
E: [e-mail]

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User Manual TLE Series 625 - 750 - 1000 UL S2
Preface
Congratulations on your choice of a TLE Series Uninterruptible Power Supply (UPS).
It will help eliminate load disturbances due to unexpected power problem
.
This
User Manual
describes 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
.
Please refer to the accompanying
Installation Guide
, which describes how to prepare the
installation site and it provides weight, dimensions and procedures for moving, installing
and connecting the UPS
.
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!
TLE Series 625 - 750 - 1000 is a Category C3 UPS Product (according to IEC 62040-2).
This is a product for commercial and industrial application in the second environment −
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 Center before you proceed.
This document shall not be copied or reproduced without the
permission of GE.
Some of the information contained in this manual may be changed without notice to
reflect technical improvements.
Safety instructions
Read the safety instructions contained on the following pages carefully before the
installation of the UPS, options and battery system.
Pay attention to the rectangular boxes included in the text:
They contain important information and warning concerning electrical connections and
personnel safe
ty.
Parallel System version secured with RPA
When included in the text, this symbol refers to operation needed
only for RPA Parallel System.

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User Manual TLE Series 625 - 750 - 1000 UL S2
Table of content Page
1IMPORTANT SAFETY INSTRUCTIONS .............................................................................................................................6
2LAYOUT...............................................................................................................................................................................9
2.1 LAYOUT TLE SERIES 625 & 750..................................................................................................................................................................................9
2.2 LAYOUT TLE SERIES 1000 ......................................................................................................................................................................................... 10
3INTRODUCTION ..............................................................................................................................................................11
4DESCRIPTION...................................................................................................................................................................12
4.1 BLOCK DIAGRAM AND MAIN ELEMENTS............................................................................................................................................................ 13
4.2 OPERATION MODES..................................................................................................................................................................................................... 14
4.2.1 Normal VFI Operation Mode (Voltage Frequency Independent) ............................................................................................................................ 14
4.2.2 eBoost™ Operation Mode (option) ........................................................................................................................................................................................ 14
4.2.3 Utility Failure Operation.............................................................................................................................................................................................................. 15
4.2.4 Utility Recovery Operation......................................................................................................................................................................................................... 15
4.2.5 Automatic Bypass.......................................................................................................................................................................................................................... 16
4.3 RPA PARALLEL SYSTEM OPERATION .................................................................................................................................................................... 17
4.3.1 Introduction to the RPA Parallel System............................................................................................................................................................................. 17
4.3.2 Features of RPA Parallel System............................................................................................................................................................................................. 18
4.3.3 System control................................................................................................................................................................................................................................. 18
4.3.4 Synchronization.............................................................................................................................................................................................................................. 18
4.3.5 Load sharing..................................................................................................................................................................................................................................... 18
4.3.6 IEMi Operation Mode (option)................................................................................................................................................................................................... 19
4.3.7 TLE Series with “IP Ring Bus” (option) ................................................................................................................................................................................... 20
4.4 UPS PARALLELED ON THE SAME BATTERY........................................................................................................................................................ 21
4.5 SERVICE AND TECHNICAL SUPPORT.................................................................................................................................................................... 22
4.6 WARRANTY...................................................................................................................................................................................................................... 22
4.7 RECYCLING INSTRUCTIONS ..................................................................................................................................................................................... 23
5CONTROL PANEL ............................................................................................................................................................24
5.1 CONTROL PANEL .......................................................................................................................................................................................................... 24
6LCD SCREEN ....................................................................................................................................................................25
6.1 HOME SCREEN............................................................................................................................................................................................................... 25
6.1.1 Description of the selection keys ........................................................................................................................................................................................... 26
6.1.2 Description of the signaling LEDs .......................................................................................................................................................................................... 27
6.2 MEASURES....................................................................................................................................................................................................................... 30
6.3 EVENTS ............................................................................................................................................................................................................................. 34
6.3.1 Events (alarms and messages)................................................................................................................................................................................................ 36
6.3.2 Alarms list .......................................................................................................................................................................................................................................... 36
6.3.3 Messages list.................................................................................................................................................................................................................................... 41
6.4 SETUP ................................................................................................................................................................................................................................ 44
6.5 COMMANDS.................................................................................................................................................................................................................... 50
6.6 RPA PARALLEL SYSTEM.............................................................................................................................................................................................. 54
7OPERATION......................................................................................................................................................................56
7.1 PROCEDURES FOR SINGLE TLE SERIES 625 - 750 - 1000 ........................................................................................................................... 57
7.1.1 Initial start-up of the TLE Series 625 - 750 - 1000 ......................................................................................................................................................... 57
7.1.2 Complete UPS shut-down.......................................................................................................................................................................................................... 61
7.1.3 Restore to normal operation after “System shutdown” with Load not supplied ........................................................................................... 62
7.1.4 Restore to normal operation after “EPO - Emergency Power Off” with Load not supplied...................................................................... 64
7.2 PROCEDURES SINGLE TLE SERIES 625 - 750 - 1000 FUNCTIONING AS FREQUENCY CONVERTER .......................................... 66
7.2.1 Initial Start-up of the TLE Series 625 - 750 - 1000 as frequency converter...................................................................................................... 66
7.2.2 Complete shut-down of the TLE Series 625 - 750 - 1000 as frequency converter....................................................................................... 70
7.2.3 Restore to normal operation after “System shutdown” with Load not supplied ........................................................................................... 71
7.2.4 Restore to normal operation after “EPO - Emergency Power Off” with Load not supplied...................................................................... 73
7.3 PROCEDURES FOR TLE SERIES 625 - 750 - 1000 PARALLEL SYSTEM..................................................................................................... 75
7.3.1 TLE Series 625 - 750 - 1000 Parallel System start-up.................................................................................................................................................. 75
7.3.2 Separate a UPS unit from the Redundant Parallel System....................................................................................................................................... 80
7.3.3 Reconnect a UPS unit to Redundant Parallel System.................................................................................................................................................. 82
7.3.4 Complete Parallel System shut-down ................................................................................................................................................................................. 84
7.3.5 Restore to normal operation after “System shutdown” with Load not supplied ........................................................................................... 85
7.3.6 Restore to normal operation after “EPO - Emergency Power Off” with Load not supplied...................................................................... 87
8OPTIONS...........................................................................................................................................................................89
8.1 CONNECTIVITY OPTIONS........................................................................................................................................................................................... 89
8.2 OPTIONS IN UPS CABINET ........................................................................................................................................................................................ 89
9MAINTENANCE ................................................................................................................................................................90
9.1 MAINTENANCE .............................................................................................................................................................................................................. 90
9.1.1 Service check ................................................................................................................................................................................................................................... 90
9.1.2 Fans and ventilation..................................................................................................................................................................................................................... 90
9.1.3 Other components with limited lifetime............................................................................................................................................................................. 90
9.1.4 Battery................................................................................................................................................................................................................................................. 91
9.1.5 UPS room conditions and temperature.............................................................................................................................................................................. 91
9.1.6 Preventive maintenance program........................................................................................................................................................................................ 91
10 NOTES...............................................................................................................................................................................92
10.1 NOTES FORM.................................................................................................................................................................................................................. 92

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User Manual TLE Series 625 - 750 - 1000 UL S2
1IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for models TLE Series 625 - 750 - 1000 that should be
followed during installation and maintenance of the UPS and battery.
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 Center 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.
- UPS’s and battery system require a 12 months periodic maintenance to operate reliably and safely.
This 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 utility.
- 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 utility voltage is restored.
- End user must follow applicable regional occupational safety codes/regulations during installation,
operation and equipment maintenance. This may require additional field marking or labeling defining
appropriate level of PPE (Personal Protection Equipment) to reduce the risk of Arc-flash related injuries.
Contact our Technical Support for product specific information.
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 utility.
- 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 104°F
(40°C).
- Optimal battery life is obtained if the ambient temperature does not exceed 77°F (25°C).
- 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 -13°F (-25°C) to 131°F (+55°C).
-The optimal temperature for Battery storage is 68°F (20°C) to 77°F (25°C) and shall never exceed the range -
4°F (-20°C) to 104°F (40°C).
- 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 cells number, voltage (V), capacity (Ah).
All the battery used, shall be of the same manufacturer and date of production.
- 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.
- In case of air shipment, the cables +/- going to the battery fuses/terminals shall be disconnected and isolated.

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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:
1Wear 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 jewellery.
Do not carry metal objects in your pockets where the objects can fall into the battery cabinet.
High energy through conductive materials could cause severe burns.
2Tools 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.
3Disconnect charging source prior to connecting or disconnecting battery terminals.
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.
4Align 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.
5Install the battery cables in such a way that the UPS or battery cabinet doors cannot pinch them.
6Do 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.
7Determine if battery is inadvertently grounded. If inadvertently grounded, remove source from
ground. Contact with any part of a grounded battery can result in electrical shock.
The likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance.
8To reduce the risk of fire or electric shock, install the battery in a temperature and humidity
controlled indoor area, free of contaminants.
9Battery 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.
10 Where conductors may be exposed to physical damage, protect the conductors in accordance
with all applicable codes.
11 If you are replacing the battery or repairing battery connections, shut OFF the UPS and remove
the battery fuses.

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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.
Throughout this manual the following symbols are defined:
WARNING, if instruction is not followed injury or serious equipment damage may
occur!
CAUTION, internal parts have dangerous voltage present.
Risk of electric shock!
PE (Earth) – GND (Ground)
PROTECTIVE GROUNDING TERMINAL:
A terminal which must be connected to earth ground prior to making any other
connection to the equipment.
A terminal to which or from which an alternating (sine wave) current or voltage
may be applied or supplied.
A terminal to which or from which a direct current or voltage may be applied or
supplied.
This symbol indicated the word “phase”.
This symbol indicates the principal on/off switch in the on position.
This symbol indicates the principal on/off switch in the off position.

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User Manual TLE Series 625 - 750 - 1000 UL S2
2LAYOUT
2.1 LAYOUT TLE Series 625 & 750
Fig. 2.1-1 TLE Series 625 & 750 - General view
Fig. 2.1-4 Connectivity Rack
Fig. 2.1-3 Control Panel
Fig. 2.1-5 Q1 - UPS Output switch
Fig. 2.1-2 TLE Series 625 & 750 - General view with open doors
TLES_UL_7500_S1_UPS_GE_02
TLES_160-400_S1_Customer interface-CI_SNMP_XA_01
SNMP
CI
12
EPO
EPO
-
+
J35µP
XA
TLES_UL_1000_S1_SwitchQ1_01
Q1
0 OFF
I ON
TLES_UL_750_S2_UPS_GE_03
EPO
EPO
- +
12
Q1
0 OFF
I ON

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User Manual TLE Series 625 - 750 - 1000 UL S2
2.2 LAYOUT TLE Series 1000
Fig. 2.2-1 TLE Series 1000 - General view
Fig. 2.2-4 Connectivity Rack
Fig. 2.2-3 Control Panel
Fig. 2.2-5 Q1 - UPS Output switch
Fig. 2.2-2 TLE Series 1000 - General view with open doors
TLES_UL_1000_S1_UPS_GE_02
TLES_160-400_S1_Customer interface-CI_SNMP_XA_01
SNMP
CI
12
EPO
EPO
-
+
J35µP
XA
TLES_UL_1000_S1_SwitchQ1_01
Q1
0 OFF
I ON
TLES_UL_1000_S2_UPS_GE_03
EPO
EPO
- +
12
Q1
0 OFF
I ON

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User Manual TLE Series 625 - 750 - 1000 UL S2
3INTRODUCTION
The TLE Series 625 - 750 - 1000 Uninterruptible Power Supply (UPS) provides the energy supply for
critical loads which need a reliable, continuous free from voltage disturbances and frequency
fluctuations supply.
In case the power provided by the Utility 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 Utility power returns.
TLE Series 625 - 750 - 1000 is a truly VFI double conversion Uninterruptible Power
Supply (UPS), equipped with automatic bypass, where the Load is normally supplied
by the Inverter.
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 Utility via
the Automatic Bypass.
The UPS automatically returns to normal mode when the failure condition is
restored.
TLE Series 625 - 750 - 1000 can be configured, if chosen, for the eBoost™ Operation
Mode (Option - High efficiency: up to 99% / Fast power transfer: <2ms) permitting
maximum energy saving.
KEY FEATURES:
More Critical equipment supported
Rated at 1 Power Factor, TLE Series 625 - 750 - 1000 delivers more real power than other UPS in the
market.
With today’s trend toward power factor corrected loads, TLE Series 625 - 750 - 1000 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.
High Efficiency
Thanks to type Advanced Neutral Point Clamped three level IGBT technology, TLE Series 625 - 750 - 1000
guarantees a high overall performance.
Intelligent Energy Management (IEM) combined with RPA, results in the most cost efficient and reliable
UPS solution in the industry.
Fully digital
Digital Signal Processor (DSP), Flash memory and Advanced Neutral Point Clamped are the technology
corner stones of a new age of power quality and power reliability.
RPA™ - Redundant Parallel Architecture™ Parallel System
GE provides a unique technology called Redundant Parallel Architecture™ (RPA™) that can parallel
Uninterruptible Power Supply (UPS) modules with true redundancy.
With RPA™, there is no need for external electronics or switches to control the UPS modules in the
parallel system.
One of the UPS modules in the system arbitrarily takes a leadership role, while the other UPS modules
have access to all control parameters.
If one UPS fails to operate, the load is automatically redistributed among the others.
If the lead UPS fails to operate then a different UPS automatically takes on the leadership role.
The RPA™ systems are designed to have no single points of failure, ensuring the highest level of power
protection for critical loads.
Extremely flexible
Tailor made power protection to meet your individual installation requirements; TLE Series 625 - 750 -
1000 offers various options like EMC filter and our comprehensive software for mission control and data
protection to cover all your application needs.

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User Manual TLE Series 625 - 750 - 1000 UL S2
4DESCRIPTION
TLE Series 625 - 750 - 1000 is one of
the best performing and most
reliable three-
phase UPS systems
providing critical power protection
for a wide range of applications.
Every TLE Series 625 - 750 - 1000
system operates in
VFI mode
(Voltage Frequency Independent)
yielding the maximum levels of
power reliability for all mission-
critical processes.
With proven technology the TLE Series 625 - 750 - 1000 UPS provides top class reliability and
performance.
With backfeed protection and compliance to EMC standards the TLE Series 625 - 750 - 1000 complies to
current standards.
Reliability can be further increased by paralleling up to six UPS units utilizing GE’s unique RPA™
technology (Redundant Parallel Architecture).
With RPA every UPS is controlled in a true peer-to-peer configuration with redundancy in all critical
elements and functions, eliminating all single points of failure.
The decentralized bypass offers great flexibility to up or down grade the system in case future needs
might change.
TLE Series 625 - 750 - 1000, BEST IN CLASS EFFICIENCY
•High efficiency in double conversion mode up to 96.2/96.3% (750/1000 kVA) and eBoost™ operation
mode up to 98.8/98.9% (750/1000 kVA)..
•High efficiency at partial and reduced loads for cost benefits in operating conditions.
•Higher efficiency at partial load in RPA Systems with adaptive capacity control (IEMi Operation Mode)
•TLE Series 625 - 750 - 1000 products designed in compliance with UL 1779 standard, C3 level for
immunity, i.e. can withstand possible disturbances and noise without affecting standard operating
conditions.
•Advanced User Interface with touch screen display guided menu.
•Reduced energy consumption costs.
•Reduced size and costs of the air conditioning system.
•Compact design, saving installation space.
NOTE !
Through their complete life cycle, all GE UPS systems are fully supported by service
teams which provide world-class, 24x7 preventive and corrective services, training
and application expertise.
TLES_UL_625-750-1000_S2_UPS_GE_01
TLE Series 1000
TLE Series 625 & 750

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User Manual TLE Series 625 - 750 - 1000 UL S2
4.1 BLOCK DIAGRAM AND MAIN ELEMENTS
Fig. 4.1-1 Block Diagram TLE Series 625 - 750 - 1000
The TLE Series 625 - 750 - 1000 system can be divided into the following main elements:
Control System
TLE Series 625 - 750 - 1000 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 Active IGBT Rectifier converts the 3-phase utility voltage into a controlled and regulated DC-voltage,
supplying the Inverter and to charge the battery through the battery-charger.
Thanks to modulation strategy applied to IGBT Bridge, the rectifier provides clean input power in terms
of low THDi and unity power factor.
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 Utility.
Back-feed Protection
All TLE Series 625 - 750 - 1000 UPS's are equipped with an automatic system for the protection against
voltage back feeding towards Utility, through the Bypass (UL 1778 and CSA C22.2 no. 107.3).
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.
Battery
The Battery supplies the DC power to the Inverter when the Utility is out of acceptable tolerances.

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4.2 OPERATION MODES
4.2.1 Normal VFI Operation Mode (Voltage Frequency Independent)
Under normal conditions the Load is
permanently powered by the
Inverter with
constant amplitude and frequency
.
The
Rectifier, powered by the Utility, supplies
the
Inverter and the battery-charger keeps the
battery
fully charged.
The
Inverter converts the DC voltage in a new
AC sine wav
e voltage with constant amplitude
and frequency independently from the input
Utility Power.
Fig. 4.2.1-1 Block diagram normal VFI Operation Mode
4.2.2 eBoost™ Operation Mode (option)
eBoost™
e
High efficiency (up to 99%)
Boost
Fast power transfer (< 2ms)
When the
eBoost™ Operation Mode is
selected, and the
Utility Power is available,
the
Load is normally powered through the
Automatic Bypass
.
When the
Utility Voltage is detected out of the
prescribed tolerances, the
Load is
automatically transferred to the
Inverter.
When the
Utility recovers, the Load returns to
the
Automatic Bypass after a variable time
defined by the control unit.
Fig. 4.2.2-1 Block diagram eBoost™ Operation Mode
The
eBoost™ Operation Mode can be used for single units or the RPA Parallel System
, for up to 6 UPS
modules, with all units individually able to supply power through a redundant communication bus.
The
eBoost™ Operation Mode can be configured directly by the user for higher efficie
ncy, considering
the
Utility reliability and criticality of the Load.
The selection between the two operation modes “
VFI mode and eBoost™ Operation Mode”, or switching
between operation modes at required time, can be done through the UPS
control panel (see Section 6.4
/ eBoost).
NOTE !
The eBoost™ Operation Mode is available only if enabled at the factory or by a GE
GLOBAL SERVICES FIELD ENGINEER.

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4.2.3 Utility Failure Operation
When the Utility 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 shows the estimated
time the
Battery can support the critical Load.
Prior to complete
Battery discharge, the "stop operation"
alarm (
shut-down imminent) warns the operator that the
Battery
is almost discharged and the UPS is about to shut
down.
Fig. 4.2.3-1 Block diagram Utility Failure operation
In case of RPA Parallel System
With a Parallel System for power capacity (see Section 4.3)
•With the Bypass Utility power available, a “Battery low” warning on any unit will cause the Load
to be transferred to Utility (after a selectable time delay).
•With Bypass Utility 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 4.3)
•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.
4.2.4 Utility 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 Utility
throug
h 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. 4.2.4-1 Block diagram Utility recovery operation
In case of RPA Parallel System
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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4.2.5 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 Utility 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.
Fig. 4.2.5-1 Block diagram Automatic Bypass
If the UPS is unable to return to normal mode following an automatic transfer to
Bypass mode, an
alarm condition will be initiated.
In case of RPA Parallel System
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.

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4.3 RPA PARALLEL SYSTEM OPERATION
4.3.1 Introduction to the RPA Parallel System
Fig. 4.3.1-1 Block diagram RPA Parallel System operation
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 TLE Series allows parallel operation of up to 6 units, without using paralleling
switchgear, external bypass circuits or common control circuitry (see Fig. 4.3.1-1).
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 Utility Bypass source.
Parallel units for redundancy
The nominal power rating of the n out 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).

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4.3.2 Features of RPA Parallel System
The TLE Series 625 - 750 - 1000 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.
4.3.3 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.
4.3.4 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 Utility 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).
4.3.5 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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4.3.6 IEMi Operation Mode (option)
NOTE !
IEMi and eBoost Operation Mode
are mutually exclusive; they cannot be
simultaneously available on a system.
Fig. 4.3.6-1 Functional diagram of a Parallel System RPA in IEMi Operation Mode
GE offers the IEMi - Intelligent Energy Management integrated option to optimize energy cost while
maintaining the highest possible reliability for Parallel Redundant Uninterruptible Power Supply units
(max. 6).
For Parallel System installations, secured with Redundant Parallel Architecture™(RPA™), IEMi Operation
Mode saves energy by dynamically utilizing the UPS units as needed to meet the required load without
compromising the power quality to the critical load.
The software will calculate the number of UPS units which are needed for load supply based on
following:
• Redundancy (N+1 or N+2) • System Load • Rectifier status
• Inverter operating time • IEMi Operation Mode programming
Particularly, the UPS control logic determines the minimal set of UPSs required to maintain a reliable
supply to the critical load.
Then, an efficiency optimization algorithm determines the best UPS configuration in order to maintain
the running UPS in their highest efficiency operating region.
Energy losses are reduced by switching the Inverter section of one or more units to a stand-by state.
The critical load is fed by the remaining units operating in double-conversion.
As load increases, other units are gradually switched on-line in order to maintain the required
redundancy level.
The IEMi - Intelligent Energy Management integrated option is only available on parallel installations.
It is clear that in order to enjoy the benefits of IEMi operation a system programmed for N+1
redundancy requires a parallel installation of at least three UPSs, while four UPSs are required for N+2
redundancy.
IEMi - Intelligent Energy Management integrated is an option, and it is available only if introduced at the
factory, or if introduced in field installations by a GE GLOBAL SERVICES FIELD ENGINEER.
Benefits of IEMi - Intelligent Energy Management integrated include:
• Higher efficiency (reduced losses) in low-load conditions (efficiency optimization)
• No compromise on power quality (double-conversion operation)
• No compromise on system reliability (redundant operation).

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4.3.7 TLE Series 625 – 750 – 1000 with “IP Ring Bus” (option)
Maintenance of the TLE Series 625 – 750 - 1000 whit “IP RING BUS” option
Fig. 4.3.7-1 TLE Series 625 – 750 – 1000 electronic bracket
Fig. 4.3.7-2 IP Ring Bus fuses
WARNING !
All maintenance and service works must be performed by GE SERVICE
PERSONNEL !
TLE Series 625 – 750 – 1000 with “IP Ring Bus” option:
In case of “IP Ring Bus” option be aware that external hazardous voltage can
be supplied from the IP cabinet (FU1, FU2, FU3 / Fig. 4.3.7-2) to the IM0278
(J19.10, J19.7, J19.4 / Fig. 4.3.7-1) and to the connector XRB1 (Fig. 4.3.7-1) even
after UPS shut down.
To remove the hazardous voltages it is necessary to manually open the IP
cabinet fuses (FU1, FU2, FU3 / Fig. 4.3.7-2), checking the presence of any
voltage before working on the UPS.
Read carefully the documentation provided together with the external “IP
Ring Bus” cabinet.
IP_Ring Bus_TLES_1000_S2_Electronic bracket_01
Electronic bracket
EPO
EPO
- +
12
Q1
0 OFF
I ON
1-10-7-43-8-1-6 1-6-2-7-4-9
UPS Off (NO)
Maintenance (NO)
RingInhibited (NO)
Ring - L1 Ring - L2 Ring - L3
Ring - N 1
2 3 4 1 2 3 4 5 6 7 8 9
TLE Series 1000 UL S1
P2 P2
P3 + P18
J_SSM2 J9 J6 J7 J18
Option in added into Electronic Bracket
J23
J24 J7 J8 J18
IM279 IM278
J21J20 J19
10 11 12
XRB2 XRB1
Bypass Closed (GND)
Bypass Closed (+24V)
Ringbus connected (GND)
Ringbus connected (+24V)
TLE Series Electronic Bracket
IM279 IM278
P2
P3
P1
XRB2
XRB1
IP Ring Bus cabinet
FIELD WIRES
FU3
1
2
BC1 (IPBUSLIMIT:C1) %
FU2
1
2
BB1 (IPBUSLIMIT:B1) %
FU1
1
2
BA1 (IPBUSLIMIT:A1) %