Vertiv Liebert GXT-MT+10KVA User manual

Please comply with all warnings and operating
instructions in this manual strictly. Save this manual
properly and read carefully the following instructions
before installing the unit. Do not operate this unit
before reading through all safety information and
operating instructions carefully.

Table of Contents
1. SAFETY AND EMC INSTRUCTIONS..................................................................................................................................1
1-1. TRANSPORTATIONAND STORAGE......................................................................................................................................1
1-2. PREPARATION.....................................................................................................................................................................1
1-3. INSTALLATION .....................................................................................................................................................................1
1-4. CONNECTION WARNINGS........................................................................................................................................2
1-5. OPERATION.........................................................................................................................................................................3
1-6. STANDARDS........................................................................................................................................................................3
2. INSTALLATION AND OPERATION .....................................................................................................................................4
2-1. UNPACKING AND INSPECTION.............................................................................................................................................4
2-2. REAR PANEL VIEW .............................................................................................................................................................5
2-3. SINGLE UPS INSTALLATION ...............................................................................................................................................6
2-4. UPS INSTALLATION FOR PARALLEL SYSTEM.....................................................................................................................7
2-5. SOFTWARE INSTALLATION..................................................................................................................................................8
3. OPERATIONS..........................................................................................................................................................................9
3-1. BUTTON OPERATION..........................................................................................................................................................9
3-2. LED INDICATORS AND LCD PANEL....................................................................................................................................9
3-3.AUDIBLE ALARM................................................................................................................................................................11
3-4. SINGLE UPS OPERATION ................................................................................................................................................11
3-5. PARALLEL OPERATION......................................................................................................................................................15
3-6.ABBREVIATION MEANING IN LCD DISPLAY ......................................................................................................................17
3-7. LCD SETTING...................................................................................................................................................................17
3-8. OPERATING MODE/STATUS DESCRIPTION......................................................................................................................26
3-9. FAULT CODE ....................................................................................................................................................................28
3-10.WARNING INDICATOR......................................................................................................................................................29
3-11.WARNING CODE..............................................................................................................................................................29
4. TROUBLE SHOOTING ........................................................................................................................................................30
5. STORAGE AND MAINTENANCE......................................................................................................................................32
5-1. STORAGE..........................................................................................................................................................................32
5-2. MAINTENANCE..................................................................................................................................................................32
6. SPECIFICATIONS.................................................................................................................................................................33

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1. Safety and EMC instructions
Please read carefully the following user manual and the safety instructions before installing the unit or using the
unit!
1-1. Transportation and Storage
Please transport the UPS system only in the original package to protect against shock and impact.
The UPS must be stored in the room where it is ventilated and dry.
1-2. Preparation
Condensation may occur if the UPS system is moved directly from cold to warm environment. The
UPS system must be absolutely dry before being installed. Please allow at least two hours for the UPS
system to acclimate the environment.
Do not install the UPS system near water or in moist environments.
Do not install the UPS system where it would be exposed to direct sunlight or nearby heater.
Do not block ventilation holes in the UPS housing.
1-3. Installation
Do not connect appliances or devices which would overload the UPS (e.g. big motor-type
equipment)) to the UPS output sockets or terminal.
Place cables in such a way that no one can step on or trip over them.
Do not block air vents in the housing of UPS. The UPS must be installed in a location with good
ventilation. Ensure enough space on each side for ventilation.
UPS has provided earthed terminal, in the final installed system configuration, equipotential earth
bonding to the external UPS battery cabinets.
The UPS can be installed only by qualified maintenance personnel.
An appropriate disconnect device as short-circuit backup protection should be provided in the
building wiring installation.
An integral single emergency switching device which prevents further supply to the load by the
UPS in any mode of operation should be provided in the building wiring installation.
Connect the earth before connecting to the building wiring terminal.
Installation and Wiring must be performed in accordance with the local electrical laws and
regulations.

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1-4. Connection Warnings
There is no standard backfeed protection inside, please isolate the UPS before working according to this
circuit. The isolation device must be able to carry the UPS input current.
•This UPS should be connected with TN earthing system
•The power supply for this unit must be three-phase rated in accordance with the equipment nameplate. It
also must be suitably grounded
•Use of this equipment in life support applications where failure of this equipment can reasonably be
expected to cause the failure of the life support equipment or to significantly affect its safety or
effectiveness is not recommended. Do not use this equipment in the presence of a flammable anesthetic
mixture with air, oxygen or nitrous oxide.
•Connect your UPS power module’s grounding terminal to a grounding electrode conductor.
•The UPS is connected to a DC energy source (battery). The output terminals may be live when the UPS is
not connected to anAC supply.
Before working on this circuit
-Isolate Uninterruptible Power System (UPS)
-Then check for Hazardous Voltage between all
terminals including the protective earth.
Risk of Voltage Backfeed

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1-5. Operation
Do not disconnect the earth conductor cable on the UPS or the building wiring terminals in any time
since this would cancel the protective earth of the UPS system and of all connected loads.
The UPS system features its own, internal current source (batteries). The UPS output sockets or
output terminal blocks may be electrically live even if the UPS system is not connected to the building
wiring outlet.
In order to fully disconnect the UPS system, first press the “OFF” button and then disconnect the
mains.
Ensure that no liquid or other foreign objects can enter into the UPS system.
The UPS can be operated by any individuals with no previous experience.
1-6. Standards
* Safety
IEC/EN 62040-1
* EMI
Conducted Emission...............................:IEC/EN 62040-2
Category C3
Radiated Emission..................................:IEC/EN 62040-2
Category C3
*EMS
ESD.........................................................:IEC/EN 61000-4-2
Level 4
RS........................................................ ...:IEC/EN 61000-4-3
Level 3
EFT......................................................... :IEC/EN 61000-4-4
Level 4
SURGE................................................... :IEC/EN 61000-4-5
Level 4
CS........................................................... :IEC/EN 61000-4-6
Level 3
Power-frequency Magnetic field.............. :IEC/EN 61000-4-8
Level 4
Low Frequency Signals............................:IEC/EN 61000-2-2
Warning: This is a product for commercial and industrial application in the
second environment-installation restrictions or additional measures may be
needed to prevent disturbances.

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2. Installation and Operation
We also offer optional parallel function for these two types by request. The UPS with parallel function is called
as “Parallel model”. We have described detailed installation and operation of Parallel Model in the following
chapter.
2-1. Unpacking and Inspection
Unpack the package and check the package contents. The shipping package contains:
● One UPS
●One user manual
● One monitoring software CD
●One RS-232 cable (option)
●One USB cable
●One parallel cable (only available for parallel model)
●One share current cable (only available for parallel model)
NOTE: Before installation, please inspect the unit. Be sure that nothing inside the package is damaged during
transportation. Do not turn on the unit and notify the carrier and dealer immediately if there is any damage or
lacking of some parts. Please keep the original package in a safe place for future use.

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2-2. Rear Panel View
Diagram 1: Rear Panel Diagram 2: Input/Output Terminal
1. RS-232 communication port
2. USB communication port
3. Emergency power off function connector (EPO connector)
4. Share current port (only available for parallel model)
5. Parallel port (only available for parallel model)
6. Intelligent slot
7. Power stage fan
8. External battery connector
9. Bypass Input Circuit Breaker(Only available for dual input unit)
10. Input/Output terminal (Refer to Diagram 5, 6 and 7)
11. Line Input circuit breaker
12. Maintenance bypass switch
13. Output Grounding terminal
14. Output terminal: connect to mission-critical loads
15. Line input terminal

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16. Bypass input terminal(Only available for dual input)
17. Input Grounding terminal
2-3. Single UPS Installation
Installation and wiring must be performed in accordance with the local electric laws/regulations and execute the
following instructions by professional personnel.
1) Make sure the mains wire and breakers in the building are enough for the rated capacity of UPS to avoid
the hazards of electric shock or fire.
NOTE: Do not use the wall receptacle as the input power source for the UPS, as its rated current is less than
the UPS’s maximum input current. Otherwise the receptacle may be burned and destroyed.
2) Switch off the mains switch in the building before installation.
3) Turn off all the connected devices before connecting to the UPS.
4) Prepare wires based on the following table:
Model
Wiring spec (AWG)
Input(Ph)
Output(Ph)
Neutral
Battery
Ground
GXT-MT+ 10KVA LX (3x3) LB
10
10
8
8
8
NOTE 1: The cable should be able to withstand over 40A current. It is recommended to use AWG 10 or
thicker wire for Phase and AWG 8 or thicker wire for Neutral for safety and efficiency.
NOTE 2: The selections for color of wires should be followed by the local electrical laws and regulations.
5) Remove the terminal block cover on the rear panel of UPS. Then connect the wires according to the
following terminal block diagrams: (Connect the earth wire first when making wire connection. Disconnect the
earth wire last when making wire disconnection!)
NOTE: For single utility power system, connect input terminals to the AC power source and connect input and
bypass input together (shows dashed line in below wiring diagrams)
Terminal Block wiring diagram
NOTE 1: Make sure that the wires are connected tightly with the terminals.
NOTE 2: Please install the output breaker between the output terminal and the load, and the breaker should be
qualified with leakage current protective function if necessary.
6) Put the terminal block cover back to the rear panel of the UPS.

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Warning: (Only for standard model)
● Make sure the UPS is not turned on before installation. The UPS should not be turned on during wiring
connection.
● Do not try to modify the standard model to the long-run model. Particularly, do not try to connect the
standard internal battery to the external battery. The battery type and voltage may be different. If you
connect them together, it maybe causes the hazard of electric shock or fire!
Warning: (Only for long-run model)
● Make sure a DC breaker or other protection device between UPS and external battery pack is installed. If
not, please install it carefully. Switch off the battery breaker before installation.
NOTE: Set the battery pack breaker in “OFF” position and then install the battery pack.
● Pay highly attention to the rated battery voltage marked on the rear panel. If you want to change the
numbers of the battery pack, please make sure you modify the setting simultaneously. The connection with
wrong battery voltage may cause permanent damage of the UPS. Make sure the voltage of the battery
pack is correct.
● Pay highly attention to the polarity marking on external battery terminal block, and make sure the correct
battery polarity is connected. Wrong connection may cause permanent damage of the UPS.
● Make sure the protective earth ground wiring is correct. The wire current spec, color, position, connection
and conductance reliability should be checked carefully.
● Make sure the utility input & output wiring is correct. The wire current spec, color, position, connection and
conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse and
short-circuited.
2-4. UPS Installation for Parallel System
If the UPS is only available for single operation, you may skip this section to the next.
1) Install and wires the UPSs according to the section 2-3.
2) Connect the output wires of each UPS to an output breaker.
3) Connect all output breakers to a major output breaker. Then this major output breaker will directly connect
to the loads.
4) Each UPS is connected to an independent battery pack.
NOTE: The parallel system can not use one battery pack. Otherwise, it will cause system permanent failure.
5) Refer to the following wiring diagram: