This manual contains important safety instructions. Read all safety and operating instructions before
operating the uninterruptible power system (UPS). Adhere to all warnings on the unit and in this
manual. Follow all operating and user instructions. This equipment can be operated by individuals
without previous training.
This product is designed for commercial/industrial use only. It is not intended for use with life support
and other designated “critical” devices. Maximum load must not exceed that shown on the UPS rating
label. The UPS is designed for data processing equipment. If uncertain, consult your dealer or local
Emerson Network Power representative.
This UPS is designed for use on a properly grounded (earthed), 100/200, 110/220, 115/230,
120/208,120/240 or 127/220VAC, 50 or 60Hz supply. The factory default setting is 120/208VAC, 60Hz.
Installation instructions and warning notices are in this manual.
The Liebert GXT4 208VAC 5000 - 10000 is designed for use with a four-wire input (L1, L2, N, G).
The Liebert GXT4-6000RTL630 is designed be used with a three-wire, two-phase utility source
(L1, L2, G).
WARNING
The battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed when replacing the battery pack:
• Wear rubber gloves and boots
• Remove rings, watches and other metal objects.
• Use tools with insulated handles.
• Do not lay tools or other metal objects on the batteries.
• If the battery kit is damaged in any way or shows signs of leakage, contact your local
Emerson representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
• Handle, transport and recycle batteries in accordance with local regulations.
WARNING
Although the Liebert GXT4 has been designed and manufactured to ensure personal safety,
improper use can result in electrical shock or fire. To ensure safety, observe the following
precautions:
• Turn Off and unplug the Liebert GXT4 before cleaning it.
• Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.
• Never block or insert any objects into the ventilation holes or other openings of the UPS.
• Do not place the Liebert GXT4 power cord where it might be damaged.
1Liebert
®
GXT4
™
ELECTROMAGNETIC COMPATIBILITY—The Liebert GXT4 complies with the limits for a
Class A digital device, pursuant to Part 15 of FCC rules.
Operation is subject to the following conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause
undesired operation. Operating this device in a residential area is likely to cause harmful
interference that users must correct at their own expense.
The Liebert GXT4 series complies with the requirements of EMC Directive 2004/108/EC and the
published technical standards. Continued compliance requires installation in accordance with these
instructions and use of accessories approved by Emerson.
NOTICE
This is a product for restricted sales distribution to informed partners. Installation
restrictions or additional measures may be needed to prevent radio interference.
Operate the UPS in an indoor environment only in an ambient temperature range of 0-40°C
(32-104°F). Install it in a clean environment, free from moisture, flammable liquids, gases and
corrosive substances.
The Liebert GXT4-5000RT208, Liebert GXT4-6000RT208 and the Liebert GXT4-6000RTL630 contain
no user-serviceable parts except the internal battery pack. The Liebert GXT4-10000RT208 and the
Liebert GXT4-8000RT208 contain no user-serviceable parts except the internal battery pack and the
Power Module. The UPS On/Off push buttons do not electrically isolate internal parts. Under no
circumstances attempt to gain access internally due to the risk of electric shock or burn.
Do not continue to use the UPS if the front panel indications are not in accordance with these
operating instructions or the UPS performance alters in use. Refer all faults to your dealer.
Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and
the required precautions. Keep unauthorized personnel away from the batteries. Keep unauthorized
personnel away from the batteries. Proper disposal of batteries is required. Refer to your local laws
and regulations for disposal requirements.
Never block or insert any object into the ventilation holes or other openings.
DO NOT CONNECT equipment that could overload the UPS or demand DC current from the UPS,
for example: electric drills, vacuum cleaners, laser printers, hair dryers or any appliance using halfwave rectification.
Storing magnetic media on top of the UPS may result in data loss or corruption.
Turn Off and isolate the UPS before cleaning it. Use only a soft cloth, never liquid or aerosol cleaners.
Information for the Protection of the Environment
UPS SERVICING—This UPS makes use of components dangerous for the environment (electronic
cards, electronic components). The components removed must be taken to specialized collection and
disposal centers.
Liebert® GXT4
™
2
GLOSSARY OF SYMBOLS
!
PbH2SO4
-
+
R
Risk of electrical shock
Indicates caution followed by important instructions
AC input
AC output
i
Requests the user to consult the manual
Indicates the unit contains a valve-regulated lead acid battery
Recycle
DC voltage
Equipment grounding conductor
Bonded to ground
AC voltage
WEEE
3Liebert
®
GXT4
™
1.0PRODUCT DESCRIPTION
The Liebert GXT4 is a compact, online uninterruptible power system (UPS) that continuously
conditions and regulates its output voltage. The UPS is designed to supply microcomputers and other
sensitive electronic equipment with clean sine wave input power, 5000VA, 6000VA, 8000VA and
10,000VA.
Upon generation, AC power is clean and stable. However, during transmission and distribution it is
subject to voltage sags, spikes and complete failure that may interrupt computer operations, cause
data loss and damage equipment.
The Liebert GXT4 protects equipment from these disturbances. The Liebert GXT4 continuously
charges its batteries from the mains, enabling it to supply power to connected loads, even when the
mains fail.
This section describes the UPS, its features, models, appearance and components, operating
principles and operating mode.
1.1Features
The UPS includes these features:
• Intelligent battery management to extend battery life
• LCD for user-friendly operation and local monitoring and configuration of operational parameters
• Flexible network management with Liebert MultiLink
• Fan fault self-inspection and automated diagnostic function
• Intelligent fan operation, automatically changing rotation speed depending on system
requirements, to decrease power consumption and noise
• Input circuit breaker to ease recovery from overloads
• Safety approval from UL and cUL
• Communication options: USB port, Liebert IntelliSlot
• Dry contacts for remote monitoring
• Input power factor greater than 0.99
• Output voltage selection function
Product Description
®
software
®
port and terminal block communication
1.2Available Models
Available models of the UPS are listed in Ta b l e 1:
Table 1UPS models, power ratings
Model NumberNominal Power Rating
GXT4-5000RT2085000VA / 4000W
GXT4-6000RT2086000VA / 4800W
GXT4-6000RTL6306000VA / 4200W
GXT4-8000RT2088000VA / 7200W
GXT4-10000RT20810000VA / 9000W
1.3Appearance and Components
1.3.1Appearance
The Liebert GXT4 rack/tower models in various power ratings have the same general appearance,
controls and features (see Figure 1). The various rack/tower models differ largely in the type of
receptacles each has.
Liebert® GXT4
™
4
Figure 1Liebert GXT4 5000VA and 6000VA, front view
Upper Bezel
Operation and Display Panel
Lower Bezel and Battery Access Door
Lower Bezel and Battery Access Door
Upper Bezel
Operation and
Display Panel
Liebert
IntelliSlot
Port
USB Port
Terminal Block
Communication
Input Breaker
Knockouts for Hard-Wired
Power Input
REPO
Maintenance
Bypass Breaker
Product Description
1.3.2Rear Panel Features
The rear panel of the Liebert GXT4 has these features:
• Liebert IntelliSlot
•USB port
• Input Circuit Breaker
• Maintenance Bypass Breaker
• REPO connection
•Input Receptacle
• General Output Receptacles (on optional PODs)
• External Battery Connector
• Cooling Fan
• Terminal Block Communication
• Output Circuit Breakers (on optional PODs)
Figure 2Liebert GXT4 5000VA and 6000VA with input power hard-wired box—rear view
®
Port
NOTE
Hard-wired and hard-wired/receptacle boxes that include a manual bypass switch permit AC
power to continue to flow from the utility input to the load while the box is removed from the
UPS. For details, refer to 1.4 - Removable Power Distribution Box.
5Liebert
®
GXT4
™
Figure 3Liebert GXT4-6000RTL630, rear view
External
Battery
Connector
Liebert
IntelliSlot
Port
USB Port
Terminal Block
Communication
Maintenance
Bypass Breaker
REPO Connection
Block
Output Breaker
for L6-30R #4
Input Breaker
for L6-30P #1
1
2
3
4
5
Output Breaker for
L6-20R #2 and #3
Output Breaker
for L6-30R #5
IT Power
System
Access
Cover
External Battery
Connector
Liebert
IntelliSlot
Port
USB Port
Terminal Block
Communication
Maintenance
Bypass
Switch
Knockouts
for Hard-Wired
Power Input
REPO Connection Block
Input
Breaker
Switch
Output
Breaker
Switch
Cover for Power
Distribution Box
Connections
Figure 4Liebert GXT4 8000VA and 10,000VA rear view
Product Description
Liebert® GXT4
™
6
1.4Removable Power Distribution Box
PD2-001
Receptacles: four 5-20; one
L14-30; one L6-30R
PD2-002
Receptacles: two 5-20R; two L6-20R
PD2-003
receptacles: four 5-20R; two L6-30R
PD2-005
Receptacles: four L5-20R; two L6-30R
PD2-004
Receptacles: four L5-20R; two L5-30R
PD2-006
Receptacles: four L6-20R; two L6-20R
L14-30 Input
Power Connector
Input Power
Breaker
Maintenance
Bypass Breaker
Output Power Breakers
for Pigtails
Push Button Output
Power Breakers for Two
L5-20 Receptacles
(second push button
breaker obscured)
PD2-001 shown as example;
similar features on other distribution
boxes arranged differently
PD2-007
Receptacles: two L6-30R; two L6-20R
The UPS is shipped with a power distribution pack installed. This box contains the UPS input circuit
breaker.
Figure 5Power distribution models for 5000VA and 6000VA models of Liebert GXT4
Product Description
7Liebert
®
GXT4
™
Figure 6Power distribution models for 8000VA and 10,000VA models of Liebert GXT4
Output Circuit Breaker
Switch for L6-30R Pigtail #1
5-20R Output
Receptacles
5-20R Output
Receptacles
Push Button
Circuit Breakers
for 5-20R
Receptacles
L6-30ROutput
Receptacles
PD2-101
Receptacles: two L6-30R; eight 5-20R
p;
similar features on other
distribution boxes arranged differently
Output Circuit Breaker
Switch for L6-30R Pigtail #2
2
1
PD2-102
Receptacles:
four L6-20R
four 5-20R
PD2-103
Receptacles:
four L6-30R
four 5-20R
PD2-104
Receptacles:
four 5-20R
two L6-30R
two L6-20R
PD2-105
Receptacles:
four 5-20R
two L5-30R
two L5-20R
PD2-106
Receptacles:
four L6-20R
four L5-20R
Product Description
Liebert® GXT4
™
8
Product Description
PD2-107
Receptacles: four L5-20R;
four 5-15R
PD2-109
Receptacles:
two L14-30R
PD2-201
Receptacles:
two IEC320-C19
eight IEC320-C13
PD2-108
Receptacles:
two L6-30R;
two L6-20R
PD2-200
Receptacles:
four IEC320-C19
four IEC320-C13
PD2-204
Receptacles:
two IEC309-32A
four IEC320-C13
PD2-202
Receptacles:
(12) IEC320-C13
Figure 7Power distribution models for 8000VA and 10,000VA models of Liebert GXT4 (continued)
9Liebert
®
GXT4
™
1.5Internal Battery Packs
Battery Connector
Front of Battery Pack
GXT4 10,000 Battery
Pack shown; 5000 and
6000VA battery packs
have same features
Battery Handle
EMI/RFI
Output
Filter
Rectifier/PFC
DC-DC
Converter
Battery
Charger
Battery
Internal
Bypass
L1
G
L2
N
G
L1
Maintenanc e By pass
(5/ 6 k VA in P OD)
(8/10 kV A in frame)
L2
N
TVSS
EMI/RFI
Input
Filter
Inverter
General Outlet
(POD
Dependent )
General Outlet
(POD
Dependent )
General Outlet
(POD
Dependent )
General Outlet
(POD
Dependent )
General Outlet
(POD
Dependent )
The UPS has two internal battery packs behind a battery access door on the front of the unit. Each
internal battery pack is fitted with a connector to link to the UPS.
Figure 8Internal battery pack with connector
1.6Major Components
Product Description
1.6.1Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters
The UPS is composed of mains input, TVSS and EMI/RFI filters, rectifier/PFC, inverter, battery
charger, DC-to-DC converter, battery, dynamic bypass and UPS output.
These UPS components provide surge protection and filter both electromagnetic interference (EMI)
and radio frequency interference (RFI). They minimize any surges or interference present in the
mains line and keep the sensitive equipment protected.
In normal operation, the rectifier/power factor correction (PFC) circuit converts mains AC power to
regulated DC power for use by the inverter while ensuring that the waveshape of the input current
used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives:
• The mains power is used as efficiently as possible by the UPS.
• The amount of distortion reflected on the mains is reduced.
This results in cleaner power being available to other devices in the building not being protected by
the Liebert GXT4.
™
10
1.6.3Inverter
In normal operation, the inverter utilizes the DC output of the power factor correction circuit and
inverts it into precise, regulated sinewave AC power. Upon a mains power failure, the inverter
receives its required energy from the battery through the DC-to-DC converter. In both modes of
operation, the UPS inverter is on-line and continuously generating clean, precise, regulated AC
output power.
1.6.4Battery Charger
The battery charger utilizes energy from the mains power and precisely regulates it to continuously
float charge the batteries. The batteries are being charged whenever the Liebert GXT4 is connected to
mains power.
1.6.5DC-to-DC Converter
The DC-to-DC converter utilizes energy from the battery system and raises the DC voltage to the
optimum operating voltage for the inverter. This allows the inverter to operate continuously at its
optimum efficiency and voltage, thus increasing reliability.
1.6.6Battery
The Liebert GXT4 utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery
design life, operate the UPS in an ambient temperature of 15°C to 25°C (59°F to 77°F). Optional
external battery cabinets are available to extend battery run times. For run times, see Table 21.
Product Description
1.6.7Internal Bypass
The Liebert GXT4 provides an alternate path for mains power to the connected load in the unlikely
event of a UPS malfunction. Should the UPS have an overload, overtemperature or any other UPS
failure condition, the UPS automatically transfers the connected load to bypass. Bypass operation is
indicated by an audible alarm and illuminated amber Bypass LED (other LEDs may be illuminated to
indicate the diagnosed problem). To manually transfer the connected load from the inverter to bypass,
press the Standby/Manual Bypass button once and hold it for about 2 seconds
1.6.8Maintenance Bypass
The Liebert GXT4 provides a manual maintenance bypass in a removable section of the rear of the
UPS. This allows replacement of the UPS in the event of a UPS malfunction while keeping the
connected equipment powered with utility power.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances
in the mains supply.
1.7Operating Mode
The UPS operation modes include the following: Mains (AC) Mode, Bypass Mode, Battery Mode,
Battery Recharge Mode, Active ECO Mode and Frequency Converter Mode.
Refer to 3.0 - Operation and Display Panel for details about the operating mode indicators and
control buttons.
1.7.1Mains Mode
During Mains Mode, the mains provides input power to the Liebert GXT4. The filters, PFC circuit
and inverter process this power to provide high-quality sine wave power to connected loads. The UPS
maintains the batteries in a fully charged state.
11Liebert® GXT4
™
1.7.2Manual Bypass Mode
!
Manual Bypass Mode occurs when the unit is manually placed in internal bypass by navigating the
LCD menu to select 3 Control > 1 Turn On & Off > Turn UPS Bypass. Bypass operation is indicated
by an audible alarm and illuminated amber bypass indicator. (If other indicators are illuminated,
refer to 7.0 - Troubleshooting). During Bypass Mode, mains power bypasses the inverter and
provides energy to the connected load.
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the UPS in Bypass Mode will result in loss of output power to the connected load.
1.7.3Battery Mode
The Liebert GXT4 enters Battery Mode when mains power fails or is outside acceptable limits. The
battery system supplies power through the DC-to-DC converter to the inverter to generate clean AC
power for the connected loads.
When the Liebert GXT4 enters Battery Mode, the UPS sounds a half-second beep at 10-second
intervals. When approximately 2 minutes of run time remains, the beeps sound every 5 seconds to
warn that the battery is getting low (this Low Battery Warning is user-configurable).
In Battery Mode, the battery indicator will illuminate and the LCD will show the prompt utility power not available.
Press either the Up or Down button once, then press the Enter button to clear the prompt and silence
the audible alarm. Once the alarm prompt has been acknowledged, the screen showing the estimated
battery run time and battery capacity will be visible. Refer to 7.0 - Troubleshooting.
For approximate battery run times, refer to Table 21.
Product Description
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Turning Off the Liebert GXT4 when it is in Battery Mode will result in loss of output power to
the connected load.
If the UPS is turned Off manually, it must be manually restarted after mains power returns.
If the UPS is turned Off by a communication signal or because the batteries are depleted, it
will operate as set in the configuration program for Auto-Restart (Refer to 5.2.1 - Configuration Program).
1.7.4Battery Recharge Mode
Once mains power is applied to the Liebert GXT4, the Battery Charger begins charging the batteries.
1.7.5Frequency Converter Mode
All models of the Liebert GXT4 are capable of frequency conversion. Frequency Conversion Mode can
be selected using the configuration program. Allowable frequency operating modes include:
• Auto Sensing - 50Hz or 60Hz – Bypass Enabled
• Auto Sensing - 50Hz or 60Hz – Bypass Disabled
• Frequency Converter - 50Hz – Bypass Disabled
• Frequency Converter - 60Hz – Bypass Disabled
NOTE
The default for all models of the Liebert GXT4 is “Auto Sensing - 50Hz or 60Hz – Bypass
Enabled.”
Liebert® GXT4
CAUTION
Risk of electric shock. Can cause injury or death.
Never touch the AC input receptacle while the UPS is operating. Voltage may still be present
even when the AC input indicator is Off.
™
12
1.7.6Active ECO Mode
All Liebert GXT4 models can operate in Active ECO Mode. In this mode, the connected equipment is
powered through the bypass path to increase efficiency, reducing the electrical costs.
Active ECO mode keeps the rectifier and inverter operating, allowing the inverter to remain
synchronized to bypass. This synchronization allows the transfer of the connected equipment to UPS
inverter power almost seamlessly if bypass power falls outside the user-set limits. Once bypass power
returns within the acceptable parameters, the UPS will return to Active ECO Mode operation.
The default setting is Active ECO Mode Off.
Product Description
13Liebert® GXT4
™
2.0INSTALLATION
!
Do NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until
instructed to do so in 4.2 - Starting the UPS.
2.1Unpacking and Inspection
Unpack the UPS and conduct the following checks:
• Inspect the UPS for shipping damage. Report any shipping damage to the carrier and your local
dealer or Emerson
• Check the accessories against the delivery list. If there is any discrepancy, contact your local
dealer or your Emerson representative immediately
®
representative immediately.
CAUTION
The UPS is heavy (see 8.0 - Specifications). Take proper precautions when lifting
or moving it.
2.2What’s Included
The Liebert GXT4 is shipped with the following items:
• Terminal Block Communication terminals
• Liebert IntelliSlot
• Compact Disk with
• Liebert MultiLink
• Configuration program
• User manual (electronic version)
• USB cable, one; 1.2m (3.9 ft.)
• Rack mounting hardware including screws, handles, and rack slide kit (not included with model
numbers ending in an “E”)
• Power Distribution Box, installed on Liebert GXT4
• Support base set, one
• Warnings, Safety Instructions booklet and WEEE recycling sheet (ISO 14001 compliance)
®
Web card (IS-WEBCARD), factory-installed
®
Installation
NOTE
The GXT4 External Battery Cabinet shipping package includes one battery cabinet, two
spacers for tower configuration, one DC power cable and rack mounting hardware, including
screws, handles and mounting rail kit (not included with model numbers ending with “E”).
2.3Preparation for Installation
2.3.1Installation Environment
Install the Liebert GXT4 indoors in a controlled environment, where it cannot be accidentally turned
Off. Place it where air flows unrestricted around the unit. The installation location must be free of
water, flammable liquids, gases, corrosives and conductive contaminants. Maintain a minimum
clearance of 100mm (4 inches) in the front and rear of the UPS. Maintain an ambient temperature
range of 0 to 32 -104°F (0-40°C).
NOTE
UPS operation in sustained temperatures outside the range of 15-25°C (59°-77°F)
reduces battery life.
Installation Clearances
Maintain a clearance of at least 100mm (4 inches) in the front and rear of the Liebert GXT4. Do not
obstruct the air inlets on the front panel or rear panel of the UPS—blocking the air inlets reduces
ventilation and heat dissipation, shortening the service life of the Liebert GXT4.
Liebert® GXT4
™
14
2.4Install the Main Cabinet
Support Bases
Spacers
Connectors
Front plastic
bezel cover
Operation and
display panel
rotated clockwise
90 degrees
The Liebert GXT4 may be installed in either a tower configuration or in a rack, depending on
available space and use considerations. Determine the type of installation and follow the appropriate
instructions in either 2.4.1 - Tower UPS Installation or 2.4.2 - Rack Installation.
2.4.1Tower UPS Installation
To install the Liebert GXT4 as a tower:
1. Take the support bases out of the accessories bag (see Figure 9).
Figure 9Support bases
2. If optional Liebert external battery cabinets will be connected to the Liebert GXT4, take out the
spacers shipped with the battery cabinet.
3. Connect the spacers and the support bases as shown in Figure 9. Each Liebert GXT4 needs two
assembled support bases, one in the front and one in the rear.
4. Adjust the direction of the operation and display panel and logo on the Liebert GXT4.
a. Remove the front plastic bezel cover as shown in Figure 10.
Figure 10 Remove the front plastic bezel cover
Installation
Figure 11 Rotate the operation and display panel
b. Pull the operation and display panel gently, rotate it 90 degrees clockwise and snap it back
into position, as shown in Figure 11.
c.Pull the logo on the front plastic bezel cover gently, rotate it 90 degrees clockwise and snap it
back into position. The rotated front plastic bezel cover is shown in Figure 11.
15Liebert® GXT4
™
d. Replace the front plastic bezel cover on the Liebert GXT4. At this point, the UPS operation
!
!
Cable connects battery
cabinet to 6000VA
Liebert GXT4
6000VA Liebert GXT4
Battery Cabinet
Second connector permits adding
more battery cabinets to 6000VA
Liebert GXT4
and display panel and logo have been rotated 90 degrees clockwise, which provides upright
viewing for users.
5. Place the Liebert GXT4 and any battery cabinets on the support bases. Each Liebert GXT4 needs
two support assemblies.
2.4.2Rack Installation
The Liebert GXT4 UPS and external battery cabinets (EBC), when installed in a rack enclosure, must
be supported by a shelf or rack-mount rails. The Liebert GXT4 UPS and EBC units ship with all
required hardware to allow rack-mount installation (not included with model numbers that end in
“E”). Because different rack-mount options install differently, refer to the installation instructions
provided with the rack mount kit being used.
2.5External Battery Cabinet Installation
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within.
Ensure that the Liebert GXT4 is shut down and power has been disconnected before
beginning any work on or in the unit.
Installation
Figure 12 External battery cabinets connected to 6000VA Liebert GXT4
CAUTION
The external battery cabinet(s) are heavy (see Table 17). Take proper precautions when
lifting them.
Optional Liebert external battery cabinets may be connected to the UPS to provide additional battery
run time. External battery cabinets are designed to be placed on one side of the UPS in a tower
configuration or stacked beneath the UPS in a rack configuration.
1. Inspect the external battery cabinet for freight damage. Report damage to the carrier and your
local dealer or Emerson representative.
2. Optional rack-mount hardware is shipped with the external battery cabinet and may be installed
at this time if desired.
3. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of
support base extensions ships with each external battery cabinet.
4. Verify the External Battery Cabinet breaker is in the Off position.
5. Connect the supplied external battery cabinet cable to the rear of the external battery cabinet,
then to the rear of the UPS.
6. Turn the External Battery Cabinet breaker to the On position.
7. Verify the circuit breaker on the External Battery Cabinet is in the On position.
Liebert® GXT4
™
16
8. Use the included configuration program or the LCD to program the UPS with the number of
!
external battery cabinets connected. Instructions for the configuration program are in 5.2.1 Configuration Program.
9. The UPS is now equipped with additional backup battery run time. For approximate battery run
times, refer to Table 21.
NOTE
When removing the External Battery Cabinet, the circuit breaker on the rear of the cabinet
must be turned off before disconnecting the cable.
NOTE
If the UPS is to be shipped or stored for an extended time, the connector should be
disconnected. This will minimize any standby current drain on the batteries and help attain
their design life.
2.6Connect Input/Output Power
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within. Ensure that
the Liebert GXT4 is shut down and power has been disconnected before beginning any work
on or in the unit.
Installation
The Liebert GXT4-5000RT208, Liebert GXT4-6000RT208 and Liebert GXT4-6000RTL630 are
shipped with a power distribution box attached. The Liebert GXT4-8000RT208 and Liebert
GXT4-10000RT208 are shipped with a cover plate over the power distribution connector.
Follow the instructions below for removal and installation.
NOTE
Do not operate the UPS with the power distribution box removed. To shut off all power to this
box and to the load, utility input power must be disconnected.
17Liebert® GXT4
™
2.6.1Remove the Power Distribution Box from 5000 and 6000VA Models
Maintenance Bypass Breaker
Extract these four
captive screws
Pigtails
removed for
clarity
1. Manually transfer the connected equipment to the internal bypass.
a. From the main menu select CONTROL, then press Enter.
b. Select TURN ON & OFF and press Enter.
c.Select TURN UPS BYPASS and press Enter. The UPS will transfer the connected loads to the
internal bypass. (For help, refer to 4.4 - Manual Bypass.)
d. Loosen the captive screw over the maintenance bypass breaker (see Figure 13 for the
breaker’s location).
e.Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
2. Turn the output and input breakers Off.
3. Loosen other captive screws until the power distribution box releases.
4. Remove the power distribution box from the UPS and set it aside.
5. Loosen the screws over the plastic cover for the connector on the rear of the panel.
6. Slide the plastic cover over the connector and tighten the screws.
Figure 13 Power distribution box removal from 5000 and 6000VA models
Installation
2.6.2Remove the Power Distribution Cover from 8000 and 10,000VA Models
1. Shut down the Liebert GXT4 (for help, refer to 4.5 - Shut Down the Liebert GXT4).
a. From the Main Menu select CONTROL, press Enter, then select TURN ON & OFF.
b. Press the enter key.
c.Select TURN UPS OFF, then press Enter.
Power to the connected loads is now Off.
2. Loosen the captive screw over the maintenance bypass breaker (see Figure 4 for the breaker’s
location).
3. Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
4. Turn the output and input breakers Off.
5. Support the power distribution box and remove the two screws at the top of the box.
6. Remove the cover or power distribution box from the UPS and set it aside.
7. If removing a power distribution box, carefully pull apart the power distribution box connector
and the UPS connector.
Liebert® GXT4
™
18
Figure 14 Power distribution box removal from 8000 and 10,000VA models
Tabs slip into slots on UPS
Extract screws at these places
Pigtails
removed for
clarity
2.6.3Install the Power Distribution Box on 5000 and 6000VA Models
1. Align the connectors and press the power distribution box onto the UPS.
2. Hold the box firmly against the UPS and tighten the captive screws except the one over the
maintenance bypass breaker.
3. Turn the output and input breakers On.
4. Start the UPS according to startup instructions.
5. Verify that the UPS lamp is illuminated.
6. Turn the maintenance bypass breaker Off.
7. Insert the maintenance bypass cover behind the captive screw and tighten the screw.
Installation
NOTE
The maintenance bypass breaker cover must be installed behind the captive screw and the
screw must be tightened for the UPS to operate in inverter mode.
2.6.4Install the Power Distribution Box on 8000 and 10,000VA Models
1. With the cover or distribution box removed, press the UPS and distribution box connectors
together. Ensure that the connectors are fully seated.
2. Align the screw holes and press the power distribution box onto the UPS, making sure that the
tabs at the bottom of the box fit into the slots on the UPS.
3. Attach the box to the UPS by installing screws into the two holes at the top of the box.
4. Tighten the screws.
5. Turn the output and input breakers On.
6. Start the UPS according to startup instructions.
7. Verify that the UPS lamp is illuminated.
19Liebert® GXT4
™
2.6.5Distribution Box Electrical Connections
UtilityInput
External
Branch CB
Output
Distribution
POD
Input
CB
Output
CB
Input
Indicator
Output
Indicato r
Maintenance
Bypass Breaker
UPS
Utility
Input
External
Branch CB
Optional
Output
Distribution
Plate
Input
CB
Output
CB
Input
Indicator
Output
Indicator
Maintenance
Bypass Breaker
UPS
Output
Terminal
Block
Distribution Box Electrical Connections
for 5000 and 6000VA Models
Distribution Box Electrical Connections
for 8000 and 10,000VA Models
Electrical connections are made through a removable power distribution box that attaches to the rear
of the UPS.
• PD2-HDWR-MBS, PD2-001, PD2-002, PD2-003, PD2-004, PD2-005, PD2-006 and PD2-007
models fit the 5000 and 6000VA models of the Liebert GXT4
• PD2-L630 fits the GXT4-6000RTL630
• PD2-101, PD2-102, PD2-103, PD2-104, PD2-105, PD2-106, PD2-107, PD2-108, PD2-109,
PD2-200, PD2-201, PD2-202, PD2-204models fit the 8000 and 10,000VA models of the Liebert
GXT4
The installer must provide an upstream branch circuit breaker. The input circuit breaker on the
distribution box and the output circuit breaker on the rear of the power distribution box disconnect all
power between the main cabinet and the distribution box.
Models equipped with a manual bypass breaker pass bypass power directly to the bypass breaker
from the input terminal block. The input circuit breaker on the distribution box does not disconnect
power from the manual bypass breaker.
Table 2Branch circuit breaker ratings
Unit RatingMaximum Breaker Rating
5000VA
6000VA
8000VA
10,000VA
D Type 30A Long Delay
D Type 60A Long Delay
Installation
Figure 15 Distribution box electrical connections diagram
Liebert® GXT4
Terminal Block Connections
Conduit entry holes are provided on the rear and side of the box. Input and output wiring should not
share the same conduit. Emerson recommends using strain relief when installing the wire.
Table 3Electrical specifications
Recommended
(Maximum) External
UPS Model
Overcurrent Protection
GXT4-5000RT208
GXT4-6000RT208
GXT4-6000RTL630
GXT4-8000RT208
GXT4-10000RT208
™
30A10AWG (4mm
60A6AWG (10mm
Recommended Wire
Maximum Wire
(Including ground wire)
(75°C copper wire)
2
)8AWG (6mm2)
2
)
Terminal Block
4AWG (16mm2)
20
Accepted by
Terminal
Tightening
Torque
20 in-lb
(2.26 Nm)
Figure 16 Terminal block connections
L2NL1L2NL1
OUTPUTINPUT
L2NL1L2NL1
OUTPUTINPUT
Liebert GXT4-5000 and 6000RT208
Liebert GXT4-8000 and 10,000RT208
NOTE
1. Emerson recommends installing a UL489-approved breaker upstream of unit.
2. The installer must provide circuit breaker protection according to local codes. The utility
disconnect should be within sight of the UPS or have appropriate an appropriate lock-out.
Maintain service space around the UPS or use flexible conduit.
3. The installer must provide output distribution panels, circuit breaker protection or
emergency disconnects according to local codes. Output circuits must not share a common
conduit with any other wiring.
Installation
21Liebert® GXT4
™
3.0OPERATIONAND DISPLAY PANEL
This chapter describes the Liebert GXT4 controls, particularly the operation and display panel on the
front of the Liebert GXT4. The panel has four control buttons, seven LED indicators and a liquid
crystal display (LCD), as shown in Figure 17.
Figure 17 Operation and display panel
Operation and Display Panel
Fault
Indicator
3.1LED Indicators
The five LED indicators on the front of the operation and display panel are:
• Inverter
•Battery
•Bypass
• ECO Mode
•Fault
LCD
Panel
ESC
Button
Inverter Indicator
UP Button
Battery Indicator
Bypass
Indicator
ECO Mode
Indicator
Enter
Button
DOWN Button
Figure 17 shows the indicators’ locations; their descriptions and functions are shown in Table 4.
Table 4LED indicators
LED Indicators
InverterGreenOn when the inverter is supplying power
BypassAmber
BatteryAmberOn when the load is supplied by the battery
FaultRedOn when an error has occurred within the UPS
ECO ModeGreenOn when the UPS is in ECO Mode
Liebert® GXT4
LED Color
™
Description
On when the load is supplied by the mains through
automatic/manual bypass
22
3.2Control Buttons
The four control buttons on the front of the operation and display panel are:
•ESC
•Up
•Down
•Enter
Figure 17 shows the buttons’ locations; their descriptions and functions are shown in Table 5.
Table 5Control buttons
Control ButtonsDescription
ESC Button
Up Button
Down Button
Enter ButtonPressing this button can enter the next level menu or confirm the parameter setting value.
3.3LCD
The LCD panel shows the UPS status and enables changes to the UPS settings by assisting in
navigating through the Liebert GXT4’s menu (see 3.4 - Menu Structure).
Operation and Display Panel
Pressing this button returns to the previous menu or aborts any change in the input data field
before confirming.
Pressing this button can move the cursor up or increase the value displayed in the input data
field. When a menu is displayed on several screens, pressing the button can scroll up.
Pressing this button can move the cursor down or decrease the value displayed in the input
data field. When a menu is displayed on several screens, pressing the button can scroll down.
23Liebert® GXT4
™
3.4Menu Structure
Audible Alarm
Control
Status
Configuration
Log
About
Alarm
Control
Batt Test
1. Audible Alarm On
2. Audible Alarm Off
1. Start
2. Cancel
3. Batt Test Result
PN/SN/Firmware Version
Turn UPS On
Turn UPS Off
Address: MAC
Address: IPV4
Address: IPV6STATIC
Address: IPV6AUTO
Address: IPV6LINK
Startup on Bypas s
Enable Auto Restart
Enable Auto Shutdown
Frequency Selection
Output Lev el Selec tion
Battery Cabinets
Low Battery Time Warning
Batt Test Interval
Batt Replace Time
BATT
UPS
Turn UPS
On/Off
View Log
Clear Log
Start
Windows
System
Status
Main
Menu
Network
Time Since Startup
Battery
Input
Load
Output
LCD
Language
Color
Factory
Default
ECO Mode
Frequency
Tolerance
Requalification
Time
Enable /Disable
Voltage
Tolerance
1 English
2 French
The menu structure of the LCD is shown in Figure 18.
Figure 18 Menu structure
Operation and Display Panel
Liebert® GXT4
™
24
3.4.1Startup Screen
EMERSON
Network Power
O/P: 0V HZ 0.0A
I/P : 230 V 50HZ 0.0A
BATT: 100 % 320 MINS
LOAD: 0%
When the Liebert GXT4 is starting up, it initiates a self-test and displays the screen shown in
Figure 19 for about 10 seconds.
Figure 19 Startup screen
After about 10 seconds, the LCD shows one of the On screens in Figure 20; the screen shown depends
on whether input power is available.
Figure 20 Startup screens
Operation and Display Panel
To turn on the UPS, press either the Up or Down button to select YES and press the Enter button.
The UPS will start up, the LCD will display UPS STARTING and then START SUCCESSFUL after
the UPS is turned On, as shown in Figure 21.
Figure 21 Starting and Start Successful screens
25Liebert® GXT4
™
3.4.2Default Screen
O/P: 230V 50HZ 11.7 A
I /P: 230V 50H Z 13.1A
BATT: 100% 3MINS
LOAD: 100%
GXT4-UPS 3KVA
Values shown will vary
according to installation
and configuration.
1 STATUS
2 CONFIGURATION
3 CONTROL
4LOG
5 ABOUT
6NETWORK
Press any button in the START SUCCESSFUL screen to enter the default interface, shown in
Figure 22.
Figure 22 Default screen
In the default screen, the LCD shows the UPS model, output parameters, input parameters, battery
capacity with run time estimate and load percentage. The UPS operation mode (online /inverter,
ECO, Battery or Bypass) will be indicated by the LED indicators.
If no control button (ESC, Up, Down, Enter) is pressed for 2 minutes, the LCD will enter the screen
saver mode (backlight turns off). It will remain off until a control button is pressed.
Operation and Display Panel
3.4.3Main Menu Screen
Press the Enter button in the default screen to enter the MAIN MENU screen, as shown in
Figure 23.
Figure 23 Main Menu screen
To select a submenu, press the Up or Down button to move the cursor to the required item, then press
the Enter button to enter its submenu or set its parameter.
STATUS Screen
In the MAIN MENU screen, select STATUS to enter the Status Screen, displaying OUTPUT, LOAD,
INPUT, BATTERY and TIME SINCE STARTUP, as shown in Figure 24.
Liebert® GXT4
™
26
Figure 24 Status screens
VOLTAGE:120V
FREQUENCY :60HZ
CURRENT:17.6A
POW ER: 2112 KWH
OUTPUT
CAP:90%
WATT :1620W
VA:1800VA
LOAD
VOLT:120V
FREQ:60 HZ
CURR:18.6A
POWER :97KWH
INPUT
CAPACITY :90%
RUNTIME:100MINS
VOLTAGE :80V
BATTERY
05D15H30M
TIME SINCE STARTUP
1. UPS
2. BATTERY
3. ECO MODE
4. LCD
5. FACTORY DEFAULT
Operation and Display Panel
CONFIGURATION Screen
Select MAIN MENU >CONFIGURATION to enter the Configuration menu. This menu has seven
submenus, as shown in Figure 25.
Figure 25 CONFIGURATION screen
In the CONFIGURATION screen, press the Up or Down button to move the cursor to the required
item, then press the Enter button to enter a submenu or set its parameters.
27Liebert® GXT4
™
UPS Screen
OFF
AUDIBLE ALARM
NO
STARTUP ON BYPASS
NO
GUARANTEE SHUTDOWN
YES
ENABLE AUTO RESTART
AUTO - BYPASS ENABLE
FREQUENCY SELECTION
230
VOLTAGE SELECTION
0CABINETS
EXT BATT CABINET
2MINS
LOW BATTERY TIME
8WEEKS
BATT TEST INTERVAL
2014 Y1 M1 D
BATT REPLACE TIME
Select MAIN MENU > CONFIGURATION > UPS to enter the UPS screen. This menu has six
screens, as shown in Figure 26.
Figure 26 UPS screens
Operation and Display Panel
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
Battery Screen
Select MAIN MENU > CONFIGURATION > BATTERY to enter the BATTERY screen. This menu
has four screens, as shown in Figure 27.
Figure 27 Battery screen
Liebert® GXT4
™
28
Press the Up or Down button to increase or decrease the value of the settings, and press the Enter
ON
ECO MODE
3 Hz
FREQUENCY TOLERANCE
10%
VOLTAGE TOLERANCE
5 MINS
REQUALIFICATION TIME
1 LANGUAGE
2COLOR
button to confirm it.
ECO Mode Screens
Select MAIN MENU > CONFIGURATION > ECO MODE to enter the ECO MODE screens, as shown
in Figure 28.
Figure 28 ECO Mode screen
Operation and Display Panel
Press the Up or Down button to move the cursor to the required item, and press the Enter button to
confirm the settings.
LCD screen
Select MAIN MENU -> 2 CONFIGURATION -> 6 LCD to enter the LCD screen. This menu has two
submenus, as shown in Figure 29.
Figure 29 LCD screen
29Liebert® GXT4
™
Select 1 LANGUAGE and press the Enter button to enter the LANGUAGE screen, as shown in
1English
2
EMERSON
EMERSON
EMERSON
EMERSON
RESET ALL SETTINGS
TO FACTORY DEFAULT
SETTINGS?
YES NO
Figure 30.
The Liebert GXT4 is capable of supporting multiple languages. For the list of supported languages
and instructions on how to upload them, refer to the Configuration Program user manual on the
included CD.
Figure 30 Language screen
Select ‘2 COLOR’ and press the Enter button to enter the COLOR screen, as shown in Figure 31.
Figure 31 Color screen
Operation and Display Panel
FACTORY DEFAULT screen
Select Main Menu -> 2 CONFIGURATION -> 7 FACTORY DEFAULT to enter the FACTORY
DEFAULT screen, as shown in Figure 32.
Figure 32 Factory Default screen
Liebert® GXT4
™
30
Control Screen
1TURN ON & OFF
2 ALARM CONTROL
3BATT TEST
TURN ON UPS
UPS is Off UPS is On
TURN OFF UPS
TURN ON UPS BYPASS
1 AUDIBLE ALARM ON
2 AUDIBLE ALARM OFF
Select Main Menu -> 3 CONTROL to enter the CONTROL screen. This screen has three submenus,
as shown in Figure 33.
Figure 33 Control screen
In the CONTROL screen, press the Up or Down button to move the cursor to the required item, and
press the Enter button to enter its submenu.
TURN ON & OFF screen
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen.
This screen shows one of two displays, depending on the state of the UPS, as shown in Figure 34.
Operation and Display Panel
Figure 34 Turn UPS On or Off screen
ALARM CONTROL screen
Select Main Menu -> 3 CONTROL -> 2 ALARM CONTROL to enter the ALARM CONTROL screen,
as shown in Figure 35. This section allows active audible alarms to be silenced. To completely turn
off the audible alarm, refer to CONFIGURATION > UPS as shown in Figure 26
Figure 35 Alarm Control screen
31Liebert® GXT4
™
BATT TEST screen
1START
2 CANCEL
3BATT TEST RESULT
1VIEW LOG
2CLEAR LOG
255 OD 1H 17m AGO
UPS switch to Online
mode
254 /255
DO YOU WANT TO
CLEAR EVENT LOGS?
YESNO
Select MAIN MENU -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, as shown in
Figure 36.
Figure 36 Batt Test screen
Log Screen
Select MAIN MENU -> 4 LOG to enter the LOG screen. This screen has two submenus, as shown in
Figure 37.
Operation and Display Panel
Figure 37 Log screens
CLEAR LOG Screen
Select MAIN MENU > LOG > CLEAR LOG to enter the CLEAR LOG screen, as shown in Figure 38.
Figure 38 Clear Log screen
Liebert® GXT4
Press the Up or Down button to move the cursor to the required item. Press the Enter button to
confirm the settings.
™
32
ABOUT Screen
PN: GXT4 -2000 RT230
SN:1XXX60XXX1AFCXX
FW VER: U100D100
HW VER: H100
ADDRESS MAC
00-02-11-4X-AX
ADDRESSIPV4
10.163.226 .231 /24
ADDRESSIPV6 AUTO
::
ADDRESSIPV6 STATIC
::
ADDRESSIPV6 LINK
Fe80::202 :99ff:fe0f :4ba
2%1
Select Main Menu> ABOUT to enter the ABOUT screen, as shown in Figure 39.
Figure 39 About screen
The ABOUT screen displays UPS model, serial number, software version and hardware version.
Network
Select MAIN MENU>NETWORK to enter the NETWORK screen.
The NETWORK screen displays the MAC address and the IPv4 IP address. If the Liebert GXT4 is
fitted with an optional Liebert IntelliSlot Web card (Liebert IS-WEBCARD), the screen will display
IPv6 IP address settings (IPv6 requires configuration), as shown in Figure 40.
Operation and Display Panel
Figure 40 Network screens
33Liebert® GXT4
™
3.4.4Prompt List
A prompt screen is displayed during the operation of the system to alert you to certain conditions
and/or to require your confirmation of a command or other operation. See Table 6 for the system
prompts and meanings.
Table 6Prompts and meanings
PromptMeanings
Mains Power Restored
UPS Return From A Low Battery ConditionThe UPS transfers back to mains (AC) mode from battery low mode.
UPS Return From Battery ModeThe UPS transfers back to mains (AC) mode from battery mode.
UPS Self Test SuccessfulThe UPS self-test is successfully performed.
UPS Shutdown Command ReceivedThe UPS shut down was initiated through communication.
UPS Turn OffThe UPS shuts down and has no output power.
UPS Turn On
UPS Shutdown Process Had Been
Cancelled
ECO Mode EnabledThe UPS is configured to ECO mode operation,
ECO Mode Disabled
UPS Internal Temperature Return To
Normal
UPS Load Return From Overload
Load On InverterThe inverter is on and supplies protected power to the load.
Load On ECO Bypass
Bypass Power Restored
Operation and Display Panel
The mains power returns and the UPS transfers back to mains (AC)
mode.
The UPS starts up successfully and supplies protected power to the
load.
The shutdown command sent through Liebert MultiLink or SNMP
card to the UPS is canceled,
The UPS is configured to Online mode, supplying protected power to
the load through the inverter.
The internal temperature of the UPS recovers to normal range.
The loads are reduced, and the UPS recovers to normal state from
overload.
The UPS is on ECO mode; the mains is supplying power to the load
directly to reduce energy usage.
The bypass power recovered and the UPS can now transfer to
bypass.
3.4.5Warning List
All UPS warning messages are described in Table 7.
Table 7Warning list
WarningDescription
Utility power not available
UPS batteries low and exhausted soonThe battery capacity is low and will be exhausted soon
UPS has switched to battery mode
Load on Bypass
Input power wiring errorL-N line reverse or N line not connected
Bypass power not available
UPS Maintenance bypass outputThe UPS transfers to maintenance bypass
AC input not qualified, cannot start UPSThe utility power is not qualified, the inverter cannot be powered up
Output disabledREPO terminal connect error
The utility power is not available, or it cannot satisfy the requirements
for the UPS to operate
The utility power is abnormal or the PFC side is faulty, the UPS
transfers back to Battery mode
The UPS transfers to Bypass mode, at this point, the input utility power
supplies power to the load directly, and the load is not protected
The bypass power is not available, or it cannot satisfy the requirements
for the UPS transfers to bypass
Liebert® GXT4
™
34
3.4.6Fault List
All UPS fault messages are described in Table 8.
Table 8Fault list
FaultDescription
UPS Self-Test FailedThe battery is bad or weak or not connected.
UPS OverloadThe UPS is overloaded.
Inverter Out Of OrderThe inverter has failed.
Battery Weak/BadThe battery is bad or weak.
Output Short CircuitThe output connection is short-circuited.
DC Bus OvervoltageThe DC bus is faulty.
UPS OvertemperatureOvertemperature occurs to the UPS and the UPS will transfer to Bypass mode.
Charger Out Of OrderThe charger has failed.
Fan Out Of OrderAt least one fan is failed.
DC Bus Discharge FailDC-DC failure occurs.
Rectifier Out Of OrderRectifier failure occurs.
If a fault occurs, the UPS automatically switches to Bypass Mode. The original operating mode will be
maintained only in the case of a battery disconnection fault. The fault message alternates with UPS
Mode once a second, the red fault indicator on the operation and display panel lights up and the alarm
sounds continuously.
Operation and Display Panel
If a fault occurs, proceed as follows:
1. Enter the ALARM CONTROL screen (see Figure 35), and select AUDIBLE ALARM ON or
AUDIBLE ALARM OFF to switch the alarm On or Off.
2. Enter the EVENT LOG screen (see Figure 37), and select VIEW LOG to view the entire Event log.
NOTE
There will be a short delay before the EVENT LOG screen displays the historical fault log to
allow the log to load.
35Liebert® GXT4
™
4.0OPERATION
This section describes checks to be made before starting the UPS, how to start the UPS, manual
battery test, manual bypass, shutting down the UPS and disconnecting mains power from the UPS.
NOTE
The Liebert GXT4’s battery has been fully charged before delivery, but some charge will be lost
during storage and shipping. To ensure that the battery has adequate reserve power to protect
the connected load, charge the battery for three hours before putting the UPS into service.
4.1Startup Checklist for the Liebert GXT4
Before starting the UPS, perform these checks:
___ 1. Check that the input plugs and loads are connected properly and reliably.
___ 2. Check that the battery cable is connected properly.
___ 3. Check that the communication cables are connected properly.
4.2Starting the UPS
1. Plug the UPS into the appropriate AC outlet.
2. Close the input breaker on the rear of the unit.
3. The UPS will begin the startup sequence once AC power is present. The UPS will sound an
audible alarm, this is normal.
4. On the LCD, press either the Up or Down button once, then press the Enter button to turn On the
UPS. The UPS will sound the audible alarm again as the output receptacles are now being
powered by the internal bypass, then will sound one more time as the inverter powers the connected
equipment.
5. Check the LCD and LED indicators to ensure the UPS is operating normally.
6. Check the load percentage on the default screen to ensure the connected equipment is not
exceeding the UPS rated capacity.
Operation
The UPS is now providing conditioned and protected power to the connected equipment.
4.3Manual Battery Test
To initiate a manual battery test, select MAIN MENU > CONTROL>BATT TEST>START.
• If the battery test results show FAILED, allow the UPS to recharge the batteries for 24 hours.
• Retest the batteries after 24 hours of charging.
• After the batteries have been retested, if the battery test still shows FAILED, contact your local
Emerson
®
representative or Emerson Network Power Channel Support.
4.4Manual Bypass
To manually transfer the connected equipment to the internal bypass:
1. From the main menu select Control then press enter.
2. Select TURN ON & OFF and press Enter.
3. Select TURN UPS BYPASS and press Enter. The UPS will transfer the connected loads to the
internal bypass.
If the internal bypass is not available because of mains power problems, pressing this button once will
be ignored. Bypass operation is indicated by an audible alarm and illuminated amber Bypass
indicator. (If other indicators are illuminated, refer to 7.0 - Troubleshooting.)
Liebert® GXT4
™
36
4.5Shut Down the Liebert GXT4
To shut down the UPS from the LCD:
1. From the Main Menu select CONTROL, press Enter, then select TURN ON & OFF.
2. Press the enter key.
3. Select TURN UPS OFF, then press Enter. Press either the up or down button to move the cursor
to confirm the turn off command and press enter. Note: the UPS will sound an audible alarm, this
is normal.
4. Power to the connected equipment is now off.
The UPS display will still be illuminated because the batteries are still being charged. The UPS may
now be disconnected from AC power, and the UPS will completely shut down in approximately 15
seconds.
4.6Disconnecting Input Power from the Liebert GXT4
1. After the UPS has been shut down as detailed in 4.5 - Shut Down the Liebert GXT4,
disconnect the input cable from the wall socket.
2. Wait 30 seconds and verify that all indicators have turned Off and the fan has stopped; this
indicates that the power-off is complete.
3. Turn the external battery cabinet breaker switch to the Off position if the UPS has an external
battery cabinet.
After powering Off the UPS, the UPS ceases output and the load is powered Off.
Operation
4.7Maintenance Bypass
Maintenance Bypass Mode is used when maintenance or replacement is required. To place the unit in
Maintenance Bypass:
1. Place the UPS on internal bypass. This may be done by either of the following methods:
a. Refer to 4.4 - Manual Bypass.
b. Slide the bracket away from the manual bypass breaker on the rear of the UPS. This requires
loosening the captive screw and sliding the bracket up and away from the Manual Bypass
breaker.
2. Move the Manual Bypass breaker on the rear of the UPS to the bypass position. This requires
loosening the captive screw and sliding the bracket up and away from the Manual Bypass
breaker.
37Liebert® GXT4
™
5.0COMMUNICATION
!
This section describes the three types of communication ports on the rear of the UPS:
• Liebert IntelliSlot
• USB port (standard B-type)
• Terminal Block Communication
®
port
CAUTION
To maintain safety (SELV) barriers and for electromagnetic compatibility, signal cables
should be segregated and run separate from all other power cables.
5.1Liebert IntelliSlot Communication Cards
The Liebert IntelliSlot port accepts four optional cards:
The Liebert IntelliSlot Web Card provides SNMP monitoring and control of the UPS across the
network.
Communication
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom-wired applications
and delivers support for Liebert MultiLink
The Liebert IntelliSlot MultiPort Card provides four sets of contacts for support of up to four
computers that have Liebert MultiLink installed.
The Liebert IntelliSlot Unity Card provides SNMP and/or RS-485 monitoring of the UPS across the
network and/or building management system. The Liebert IntelliSlot UNITY card also enables
monitoring external temperature, humidity and contact closure inputs using external sensors. (The
Liebert IS-UNITY-DP compatibility will be a future release, contact your Emerson sales
representative for availability.)
Follow instructions provided with the Liebert IntelliSlot card to configure Liebert MultiLink
UPS or any additional ancillary product for the Liebert GXT4. These instructions are available at:
multilink.liebert.com
5.1.1Liebert MultiLink
Liebert MultiLink monitors the UPS continuously and can shut down the computer or server in the
event of an extended power failure. Liebert MultiLink can also be configured to shut down the UPS.
Liebert MultiLink can communicate with the UPS via the USB port, RS232 port, contact closures via
terminal block or over the network via SNMP using the Liebert IS-WEBCARD. An optional Liebert
MultiLink license kit permits shutting down multiple computers that are protected by the UPS.
For more information about the Liebert IntelliSlot SNMP Card, Liebert IntelliSlot Web Card and
Liebert MultiLink License Kits, visit the Liebert Web site (www.liebert.com) or contact your local
Emerson
®
representative.
®
shutdown software.
®
, the
Liebert® GXT4
™
38
5.2USB Port Communication
Communication
The standard B-type USB port is used to connect the UPS and network server or other computer
system using Liebert MultiLink
A standard B-type USB port is provided to allow connection to a computer or network server. The
USB port can be used to communicate with the Liebert GXT4 configuration program (see section 5.2.1
for details) or Liebert MultiLink (refer to 5.1.1 - Liebert MultiLink for description) that is provided
on the CD that is included with the UPS.
5.2.1Configuration Program
The configuration program is on the Liebert GXT4 CD and can be used instead of making
configuration setting changes from the LCD panel. The configuration program communicates to a
computer running a Microsoft
For most users, the factory default settings are adequate. This section give a brief overview of the
features and parameters that are available for modification, as well as the factory default settings.
Should any changes be necessary, refer to the Configuration Program User Manual that is located on
the included CD for further details.
The configuration program allows these features of the Liebert GXT4 to be changed:
• Change and set the display language
• Enable/Disable Auto-Restart (default is Enable)
• Select frequency converter operation with a fixed output frequency of 50Hz or 60Hz, bypass
disabled (default is Auto-Select with bypass enabled)
• Set the Low Battery Warning alarm time from 2 to 30 minutes (default is 2 minutes)
• Enable/Disable the Auto-Battery test (default is Enable)
• Enable/Disable Auto-Restart after removing Remote shutdown (default is Disable)
• Set the wiring mode of Remote shutdown (default is normally open)
• Set the Auto-Enable output after remote shutdown (default is Disable)
• Set the Auto-Battery test to 8, 12, 16, 20, or 26 weeks (default is 8 weeks)
• Select the number of external battery cabinets connected to the UPS to adjust the remaining run
time calculated by Emerson
• Select one of multiple output voltages to match various voltages (see Table 9).
Table 9Output voltage option, all models
Factory Default SettingOutput Voltage Option
208VAC200V, 208V, 220V, 230V, 240V
®
.
®
Windows® operating system via the included USB cable.
®
software products (default is zero)
NOTICE
The output voltage settings cannot be changed while the UPS is On and powering connected
loads.
NOTE
Programming the output voltage of the Liebert GXT4-5000RT208, GXT4-6000RT208, GXT48000RT208, and GXT4-10000RT208 models to 220/110VAC automatically derates both the
VA and Watt ratings to 90% of the units ratings and programming the output voltage to
200/100VAC automatically derates both the VA and Watt ratings to 80% of the units ratings
(refer to 8.0 - Specifications for the VA and Watt ratings)
NOTE
• This program is compatible with UPS models beginning with ‘GXT4,’ as in
‘GXT4-3000RT230.’ It is not compatible with earlier versions of the Liebert GXT UPS.
• A computer running Microsoft
Windows 7 or Windows 8 is required to set up and run the configuration program.
®
Windows 2000®, Windows XP®, Windows Vista®,
39Liebert® GXT4
™
5.3Terminal Block Communication
!
1
3
4
5
6
7
8
2
Low Battery
On Battery Mode
Battery Mode
Shutdown
Any Mode
Shutdown
The Terminal Block includes eight pins, as shown in Figure 41.
Figure 41 Terminal Block Communication pin layout
Communication
5.3.1Any Mode Shutdown
The purpose of Any Mode Shutdown is to shut down the UPS output by turning Off the rectifier,
inverter and static switch so that there is no power to the loads.
Any Mode Shutdown can be operated locally or remotely:
• Local Any Mode Shutdown can be performed by shorting Pin 1 and Pin 2.
• Remote Any Mode Shutdown can be performed using a switch connected to Pin 1 and Pin 2 and
mounted at a remote location.
NOTE
Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown,
depending on the settings in the configuration program.
A current-limited source for this optocoupler (+12VDC, 50mA) will be available from the UPS.
The connection to the UPS for remote connection will be via terminal block connector.
Any Mode Shutdown wiring must conform to all national, regional and local wiring
regulations.
WARNING
When the Auto-Enable output option is selected and the UPS output is disabled using Pin 1
and Pin 2, the Liebert GXT4’s output can turn On automatically and without warning if the
Pin 1 and Pin 2 connection is changed.
Liebert® GXT4
™
40
5.3.2Battery Mode Shutdown
Battery Mode Shutdown permits shutting down the UPS by turning Off the rectifier, inverter and
static switch so that there is no power to the load when the UPS is On Battery. The auxiliary power
for the UPS will still be active.
Battery Mode Shutdown can be performed locally or remotely:
• Local Battery Mode shutdown can be performed by shorting Pin3 and Pin4.
• Remote Battery Mode Shutdown can be performed using a switch connected to Pin3 and Pin4 and
mounted at remote location.
NOTE
Remote Power Off will be performed by NO contact.
A current-limited source (+12VDC, 50mA) will be available from UPS.
The connection to the Liebert GXT4 for remote connection will be via terminal block connector.
Battery Mode Shutdown wiring must conform to all national, regional and local wiring codes
and laws.
This signal must last for 1.5 seconds or longer.
A battery shutdown signal will not cause an immediate shutdown. It will start a 2-minute
shutdown timer. This timer cannot be stopped once triggered. If the mains power returns
during this countdown, the Liebert GXT4 will still shut down and must remain shut down for
10 seconds. Whether the UPS turns back On when the power is restored depends on the
auto-restart setting.
Communication
5.3.3On Battery
On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power
from the battery this dry contact will be closed.
5.3.4Low Battery
Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power
from the battery and has reached the Low Battery Warning time selected in the configuration
program, this dry contact will be closed.
NOTE
The rated values for the dry contacts for the On Battery and Low Battery signals are:
• Rated Voltage: 30V (AC or DC)
• Rated Current: 300mA
41Liebert® GXT4
™
5.4Remote Emergency Power Off
!
12
Normally closed switch system
(fail-safe)
UPS ships with REPO jumper
installed allowing the UPS
to operate
Opening the REPO connection will disable the UPS.
Manual restart using the front panel is required after
the REPO connection is closed again.
12
The UPS is equipped with a Remote Emergency Power Off (REPO) connector.
The user must supply a means of interfacing with the REPO circuit to allow disconnecting the UPS
input feeder breaker to remove all sources of power to the UPS and connected equipment to comply
with national and local wiring codes and regulations.
REPO switch connection diagram
Communication
CAUTION
To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables should
be shielded and run separately from power cables.
Liebert® GXT4
™
42
6.0MAINTENANCE
!
This section describes replacing the internal battery pack, precautions, checking the Liebert GXT4’s
status and checking UPS functions.
6.1Replacing the Internal Battery Pack
The Liebert GXT4 is designed to allow the user to replace the internal battery pack safely. Refer to
Table 10 for internal battery pack part numbers for Liebert GXT4 UPS.
Table 10Internal battery pack models
Maintenance
UPS Model Number
GXT4-5000RT208
GXT4-6000RT208
GXT4-6000RTL630GXT4-240VBATKIT2
GXT4-8000RT208
GXT4-10000RT208
Read all safety cautions before proceeding. A trained user can replace the internal battery pack when
the UPS is always in a restricted access location (such as a rack or server closet). Contact your local
dealer or Emerson representative to obtain the pricing of the appropriate replacement battery pack.
Replacement Internal
Battery Kit Model #
GXT4-144VBATKIT1
GXT4-288VBATKIT 2
Quantity
Required
CAUTION
Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.
43Liebert® GXT4
™
6.1.1Battery Replacement Procedures
Front Bezel
Battery Door
Screws, 6
8000VA / 10,000VA model shown;
5000VA & 6000VA model arrangement is
the same except smaller
Battery
Connector
Battery
Receptacle
Battery
Receptacle
Battery
Connector
8000 / 10,000VA model
shown; 5000 / 6000VA
model arrangement is
the same except smaller
1. Gently remove the front plastic bezel cover from the UPS.
2. Loosen and remove the six screws on the battery door, as shown in Figure 42.
3. Lay the battery door and screws aside for reassembly.
Figure 42 Removing the front plastic bezel cover and battery door
Maintenance
4. Gently pull the battery wires out and disconnect the battery plugs and battery receptacles, as
Figure 43 Disconnecting the battery plug and battery receptacle (front view)
5. Grasp the battery handle and pull one of the internal battery packs out of the UPS, as shown in
shown in Figure 43.
Figure 44.
Repeat this step if both battery packs will be replaced. Each model has two battery packs
Liebert® GXT4
™
44
Figure 44 Pulling out the battery packs
Internal
Battery
Pack
(one of 2)
Battery
Handle
Pull Out with Battery Handle
5000 & 6000 VA models
6000RTL630, 8000VA /
10,000VA model
Pull Out with Battery Handle
Internal
Battery
Pack
Battery
Handle
Each model has two
battery packs.
6. Unpack a new internal battery pack. Take care not to destroy the packing.
Compare the new and old internal battery packs to make sure they are the same type and model.
If they are the same, proceed with Step 7; if they are different, stop and contact your local Emerson representative or Emerson Channel Support.
7. Line up and slide in the new internal battery pack.
8. Repeat Steps 6 and 7 if replacing both battery packs. Each model has two battery packs.
9. Reconnect the battery plugs and battery receptacles.
10. Gently push the battery wire into the UPS battery compartment.
11. Reattach the front battery door with the six screws.
12. Reattach the front plastic bezel cover to the UPS.
Maintenance
6.2Battery Charging
The batteries are valve-regulated, nonspillable, lead acid and should be kept charged to attain their
design life. The Liebert GXT4 charges the batteries continuously when it is connected to the utility
input power.
If the Liebert GXT4 will be stored for a long time, Emerson recommends connecting the UPS to input
power for at least 24 hours every four to six months to ensure full recharge of the batteries.
6.3Precautions
Although the Liebert GXT4 has been designed and manufactured to ensure personal safety, improper
use can result in electrical shock or fire. To ensure safety, observe the following precautions:
NOTE
The internal battery pack is hot-swappable. However, caution should be exercised because the
load is unprotected from disturbances and power failures during this procedure. Do not replace
the battery while the UPS is operating in Battery Mode. This will result in a loss of output
power and will drop the connected load.
• Turn Off and unplug the Liebert GXT4 before cleaning it.
• Wear rubber gloves and boots.
• Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.
• Never block or insert any objects into the ventilation holes or other openings of the UPS.
• Do not place the Liebert GXT4 power cord where it might be damaged.
45Liebert® GXT4
™
6.4Checking UPS Status
!
Emerson recommends checking the UPS operation status every six months.
• Check whether the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an alarm?
• Check whether the UPS is operating in Bypass Mode. Normally, the UPS operates in Normal
Mode. If it is operating in Bypass Mode, stop and contact your local Emerson representative, or
Emerson Channel Support.
• Check whether the battery is discharging. When the utility input is normal, the battery should
not discharge. If the UPS is operating in Battery Mode, stop and contact your local Emerson
representative or Emerson Channel Support.
6.5Checking UPS Functions
NOTE
UPS function check procedures may interrupt power supply to the connected load.
Emerson recommends checking the UPS functions once every six months.
Back up the load data before conducting the UPS functions check. Procedures are as follows:
1. Press the Standby/Manual Bypass button to check whether the buzzer and indicators are normal.
2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators
are on and the UPS is operating normally.
3. Press the On/Alarm Silence/Manual Battery Test button for three seconds after Inverter Mode.
The UPS should initiate a battery self-test. Check to determine whether the battery is operating
normally. If not, stop and contact your local Emerson representative or Emerson Channel
Support.
Maintenance
6.6Replacing the Power Module on 8000 and 10,000VA models
CAUTION
The UPS must be switched to manual bypass before personnel begin to replace the power
module.
NOTICE
During the procedure, the connected load will not be protected from power disturbances, such
as spikes, sags and failure.
To remove the UPS power module without shutting off power to the connected load:
1. Place the UPS on internal bypass. This may be done by any of the three following methods:
a. Refer to 4.4 - Manual Bypass.
b. Slide the bracket away from the manual bypass switch on the rear of the UPS; this requires
loosening the captive screw and sliding the bracket away from the manual bypass switch.
c.Remove the front grille covering the power module.
2. Move the manual bypass breaker on the rear of the UPS to the bypass position; this requires
loosening the captive screw and sliding the bracket away from the manual bypass switch (see
Figure 6).
3. Open the input circuit breaker on the rear of the UPS (see Figure 6).
4. Open the output circuit breaker on the rear of the UPS (see Figure 6).
5. Remove the top two front plastic bezels by pulling them forward.
6. Remove the power module cover grille and the battery cover grille with the screws securing them
to the frame.
7. Disconnect the slotted battery connectors from the internal battery packs.
8. If additional external batteries are used, disconnect the two external battery connectors.
9. Slide power module restraint lever up out of the locked position.
10. Slide the power module out the front, supporting its weight as it is withdrawn.
Liebert® GXT4
™
46
Figure 45 Removing power module from Liebert GXT4 8000 and 10,000VA models
Power module
pulled part of
the way out of
an 8000 or
10,000VA unit
11. Insert the replacement UPS power module.
12. Slide the power module restraint lever back into the locked position.
13. Reconnect the slotted internal battery connectors.
14. Reconnect the external battery cables, if used.
15. Reattach both front cover grilles.
16. Reattach the front plastic bezels.
17. Close the input circuit breaker on the rear of the UPS (see Figure 6).
18. Close the output circuit breaker on the rear of the UPS (see Figure 6).
19. Move the bypass breaker on the rear of the UPS back to the INVERTER position (see Figure 6).
20. Slide the bracket back next to the manual bypass breaker and tighten its thumbscrew.
21. Press the On button on the front panel one time to return the UPS to Normal Mode operation (see
Figure 17).
Maintenance
NOTE
The power module restraint lever must be fully engaged for the UPS to operate
in Normal Mode.
47Liebert® GXT4
™
7.0TROUBLESHOOTING
This section indicates various UPS symptoms a user may encounter and provides a troubleshooting
guide in the event the UPS develops a problem. Use the following information to determine whether
external factors caused the problem and how to remedy the situation.
7.1UPS Symptoms
The following symptoms indicate the Liebert GXT4 is malfunctioning:
• The relative indicators illuminate, indicating the UPS has detected a problem.
• An alarm buzzer sounds, alerting the user that the UPS requires attention.
7.1.1Indicator and LCD
In addition to the fault indicator being illuminated, the LCD will display the fault. The displayed
fault on the LCD is described in Table 11
Table 11Description of the displayed fault
Displayed FaultCauseCorrective Steps
UPS self test failedThe battery is bad or weak.Contact customer service.
UPS shutdown
command received
UPS overloadThe UPS is overloaded.
Inverter Out of OrderThe inverter is faulty.Contact customer service.
Battery Weak/BadThe battery is bad or weak.Replace the battery.
Output Short CircuitThe output connection is short-circuited.
DC Bus OvervoltageThe DC bus is faulty.Contact customer service.
UPS Overtemperature
Charger Out of OrderThe charger is faulty.Contact customer service.
Fan Out of OrderAt least one fan is faulty.Contact customer service.
DC Bus Discharge Fail A DC-DC failure occurs.Contact customer service.
The UPS shuts down through
communication.
Over-temperature occurs to the UPS and the
UPS will transfer to Bypass mode.
Troubleshooting
Contact customer service.
Reduce the load and contact customer
service.
Shut down the equipment and contact
customer service.
Reduce the load and contact customer
service.
Liebert® GXT4
NOTE
If the UPS encounters a fault and no correction attempt is performed within 2 minutes, the
LCD backlight will flash (on 1 second and off 1 second) as an alert.
Press any button to exit the alert mode. If no correction attempt is performed on the UPS, the
LCD backlight will flash again until the UPS fault is corrected.
™
48
7.1.2Audible Alarm
An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS
operating status. The audible alarm will sound as described in Table 12.
Table 12Audible alarm description
ConditionAlarm
Battery dischargeHalf-second beep every 10 seconds
Low batteryTwo half-second beeps every 5 seconds
UPS fault, load on bypass1-second beep every 4 seconds
UPS fault, no power to loadContinuous
OverloadHalf-second beep every half second
Battery replacement2-second beep every 2 minutes
Battery lossContinuous
Wiring problem (loss of proper grounding for UPS)Continuous
Bypass reminder1-second beep every 60 seconds
7.2Troubleshooting
In the event of an issue with the UPS, refer to Table 13 to determine the cause and solution. If the
fault persists, contact Emerson
Table 13Troubleshooting table
ProblemCauseSolution
UPS is short-circuited or
overloaded
UPS fails to start
Batteries are not charged
enough or not connected
UPS is not plugged in
Battery indicator is illuminated
UPS has reduced battery
backup time
Battery indicator is flashing.
Bypass indicator is flashing.
UPS input protection fuse has
blown/opened
Mains power is out of tolerance
Batteries are not fully charged
UPS is overloaded
Batteries may not be able to
hold a full charge due to age
Battery source is not available;
continuous horn.
Because the voltage or
frequency is outside acceptable
limits, the bypass is disabled.
When reporting a UPS issue to Emerson, include the UPS model and serial number. These are
located in several places for your ease of location: on the top panel (rack mount orientation); the left
side (tower orientation); the rear panel; on the front of the unit behind the front plastic bezel; and on
the LCD select Main Menu > About.
®
Channel Support.
Ensure UPS is Off. Disconnect all loads and ensure
nothing is lodged in output receptacles. Ensure loads are
not defective or shorted internally.
Check to ensure the internal battery is connected. If it is
not, make the connection and try to start the unit. If the
battery is connected, leave the UPS connected to input
power for 24 hours to recharge batteries, then try to start
the unit.
UPS is operating from battery mode. Ensure UPS is
securely plugged into the wall receptacle.
UPS is operating from battery mode. Save data and close
applications. Replace UPS input fuse, then restart UPS.
UPS is operating from battery mode. Save data and close
applications. Ensure mains supply voltage is within
acceptable limits for UPS.
Keep UPS plugged in continuously at least 24 hours to
recharge batteries.
Check load level indicator and reduce the load on the
UPS.
Replace batteries. Contact your local dealer, Emerson
representative or Emerson Channel Support for
replacement battery kit.
Check battery connections, completely power down and
restart UPS.
NOTE: If the battery circuit opens while the UPS is
running, it will be detected when the next battery test is
performed.
The AC input powers the PFC input and serves as the
bypass source. If the AC is present but the voltage or
frequency exceeds the acceptable range for safe
operation with a load, the bypass will be disabled and this
indicator will flash, indicating that the bypass is
unavailable.
Troubleshooting
49Liebert® GXT4
™
8.0SPECIFICATIONS
Table 14UPS specifications—5000, 6000, 8000 and 10,000 models
Model NumberGXT4-5000RT208 GXT4-6000RT208 GXT4-8000RT208 GXT4-10000RT208
Model Rating4000W/5000VA4800W/6000VA7200W/8000VA9000W/10000VA
Dimensions, Rack Mount, W x D x H
Unit, in. (mm)16.9 x 26.1 x 6.8 (430 x 662 x 173)16.9 x 26.5 x 10.3 (430 x 672 x 261)
Shipping, in. (mm)20.3 x 29.3 x 20.9 (516 x 745 x 530)20.9 x 29.3 x 22.2 (530 x 745 x 563)
Weight lb (kg)
Unit, lb (kg)131.8 (69.9)212.7 (96.7)
Shipping, lb (kg) 165.4 (75.2)247.5 (112.5)
Input AC Parameters
Nominal Operating Frequency50 or 60Hz (Factory Default is 60Hz)
Factory Default VAC120/208VAC at 120 degrees120/208VAC at 120 degrees
Table 20Power distribution box specifications for GXT4-8000RT208 and GXT4-10000RT208
POD Model #
Dimensions, W x D x H, in. (mm)
Shipping11.9 x 20.6 x 8.7 (302 x 522 x 220)
Weight, lb (kg)
Shipping8.8 (4)6.6 (3)15 (6.8)
Electrical Specifications
Amp Rating2-pole 60A Input Breaker
Input Power
Connection
Output Power
Connections
PD2-107PD2-108PD2-109PD2-200PD2-201PD2-202PD2-204
Unit7.4 x 5.7 (188 x 145)
Unit6.6 (3)4.4 (2)6.6 (3)
(4) L5-20R
(4) 5-15/20R
(2) L6-20R
(2) L6-30R
(2) L14-30R
Custom Connector 3W + G(L-L-N-G) to UPS
(4) 5-15/20R
(4) L6-30R
Power Distribution Box Model #
Custom Connector 3W + G(L-L-N-G) to UPS
(4) IEC320-C19
(4) IEC320-C13
(4) 5-15/20R
(2) L6-30R
(2) L6-20R
(2) IEC320-C19
(8) IEC320-C13
(12) IEC320-C13
(4) 5-15/20R
(2) L5-30R
(2) L5-20R
Specifications
(4) L6-20R
(4) L5-20R
(2) IEC309-32A
(4) IEC320-C13
Liebert® GXT4
™
54
Table 21Battery run time, minutes
Number of External
Battery Cabinets
Internal Battery
Internal Battery
+ 1 External
Battery Cabinet
Internal Battery
+ 2 External
Battery Cabinets
Internal Battery
+ 3 External
Battery Cabinets
Load Percent
of Capacity
10%129106144112100
20%5246694850
30%3627433038
40%2519282126
50%1814221619
60%1411181215
70%119141012
80%9711810
90%851069
100%65858
10%217188312201200
20%131108145120132
30%82671027398
40%5346714973
50%4537504052
60%3728433146
70%2823362640
80%2519282134
90%2116261828
100%1814221625
10%341321428330345
20%165152199157205
30%133109146121150
40%1007711382124
50%74539264101
60%5347714980
70%4840534368
80%4233483752
90%3727433149
100%3125382746
10%438424450430433
20%221192314204316
30%158143180149196
40%134109147122157
50%1068212695138
60%836810373113
70%70518260101
80%5346714983
90%4941604475
100%4536504067
Specifications
208/120 VAC RT Models208 VAC RT Model
5 kVA6 kVA8 kVA10 kVA6 kVA (L630)
55Liebert® GXT4
™
Specifications
Table 21Battery run time, minutes
Number of External
Battery Cabinets
Load Percent
of Capacity
10%454442463447456
20%323300340310420
30%194161218165304
40%153138164144200
Internal Battery
+ 4 External
Battery Cabinets
50%134110147122160
60%1109213099145
70%957410979130
80%77629668111
90%67507953102
100%5346714993
10%464454480459466
20%343324429332430
30%224194316206332
40%166153203158225
Internal Battery
+ 5 External
Battery Cabinets
50%150134161140195
60%134110147122161
70%11295133102149
80%1007711382137
90%826710273126
100%74539164110
10%480463480467480
20%430341442420452
30%317219334301423
40%204164227183321
Internal Battery
+ 6 External
Battery Cabinets
50%162148191153227
60%148131159138195
70%134110147122162
80%12097135104152
90%1038012292142
100%927110777133
Run times in this table are approximate. They are based on new, fully charged standard battery modules at a temperature of 77°F (25°C)
with 100% resistive UPS loading. Run times listed above can vary by ±5% due to manufacturing variances of the individual batteries.
208/120 VAC RT Models208 VAC RT Model
5 kVA6 kVA8 kVA10 kVA6 kVA (L630)
Using the configuration program, the user may specify the number of external battery cabinets
attached to the UPS. The factory default is programmed for internal batteries only.
Table 21 shows the estimated run times at different loads.
Liebert® GXT4
™
56
8.1Auto-Learning Battery Run Times
As batteries age, the estimated run times may become less accurate. The Liebert GXT4 is
programmed to “learn” from a full battery discharge and modify the estimated run time for the
measured battery capacity. This can improve accuracy and compensate for aging batteries or
batteries that operate at different ambient temperatures.
The UPS will update the anticipated run time calculation only under certain conditions.
• The UPS must have a steady load that is greater than 20%.
• The UPS must be at 100% charge at the start of a battery discharge.
• The battery discharge must continue uninterrupted until the batteries reach their end-ofdischarge voltage.
If all conditions are not met, the run time calculation will not be modified.
If the configuration program is used to change the number of battery cabinets, then the values in
Table 21 will be restored. This will override any value that is Auto-Learned.
8.2Product Warranty Registration
Registration is not required to activate the product warranty on a Liebert UPS. Registration is
required to qualify for the Product Protection Promise. To register, visit the Emerson Network