Liebert® GXT4™
User Manual – 5000VA ~ 10000VA (230V)
Important Safety Precautions
Save These Instructions
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 earthed (grounded), 220-240 VAC, 50Hz or 60Hz supply, for
installation by qualified personnel. A qualified electrician must review and approve customer supplied wiring,
circuit breakers, intended loads and verify correct input, output and earth connections to ensure compliance with
technical standards and local electrical codes of practice.
Installation instructions and warning notices only for use by qualified personnel are located after the UPS
operator instructions in this manual.
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.
Notice
If this UPS is supplied from an ‘IT’ electrical power system, the jumper on the rear panel must be disconnected.
Refer to 8.8 IT Power System Configuration for details. If connecting to an ‘IT’ system, the installer must
provide a 2-pole upstream circuit breaker. Refer to all local and national codes when installing the upstream
breaker.
ELECTROMAGNETIC COMPATIBILITY—The Liebert® GXT4™ complies with the limits of Category C2,
pursuant to IEC/EN/AS 62040-2. Operation is subject to the following conditions:
The output cables shall be no longer than 10m (32ft).
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
1. This is a Category C2 UPS product. In a residential environment, this product may cause radio interference, in
which case the user may be required to take additional measures.
2. 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.
3. This UPS contains no user-serviceable parts except the internal battery pack. The UPS Enter push button do
not electrically isolate internal parts. Under no circumstances attempt to gain access internally due to the risk of
electric shock or burn.
4. 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.
5. 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.
6. Never block or insert any object into the ventilation holes or other openings.
7. 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.
8. Storing magnetic media on top of the UPS may result in data loss or corruption.
9. 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.
NOTICE TO EUROPEAN UNION CUSTOMERS: DISPOSAL OF OLD APPLIANCES—This product has been
supplied from an environmentally aware manufacturer that complies with the Waste Electrical and Electronic
Equipment (WEEE) Directive 2002/96/CE.
The ‘crossed-out wheelie bin’ symbol at right is placed on this product to encourage you to recycle wherever
possible. Please be environmentally responsible and recycle this product through your recycling facility at its end
of life. Do not dispose of this product as unsorted municipal waste. Follow local municipal waste ordinances for
proper disposal provisions to reduce the environmental impact of waste electrical and electronic equipment
(WEEE).
For information regarding the scrapping of this equipment, please browse
technical support.
Toll Free: 00 80011554499
Toll Number Based in Italy: +39 0298250222
Contents
2.3 Inverter.......................................................................................................................................................... 2
2.7 Dynamic Bypass............................................................................................................................................ 3
3.1 Main Frame and Electronics........................................................................................................................... 4
3.3 Internal Battery Packs.................................................................................................................................... 6
Chapter 4 What’s Included........................................................................................................................................... 7
Chapter 5 Installation and Configuration....................................................................................................................... 8
5.1.1 Tower UPS Installation........................................................................................................................ 8
5.1.2 Rack-Mount UPS Installation............................................................................................................... 9
5.2 External Battery Cabinet Installation..............................................................................................................12
6.2 What You Will Need......................................................................................................................................17
7.1 LED Indicators..............................................................................................................................................18
Chapter 8 Operation...................................................................................................................................................27
8.1 Startup Checklist For Liebert GXT4™............................................................................................................27
8.3 Manual Battery Test......................................................................................................................................27
9.2.1 Any-Mode Shutdown..........................................................................................................................30
Chapter 1 Introduction
1
Chapter 1 Introduction
Congratulations on your choice of the Liebert® GXT4™ uninterruptible power system (UPS). The Liebert GXT4
comes in nominal power ratings of 5000VA, 6000VA and 10,000VA. It is designed to provide conditioned power to
microcomputers and other sensitive electronic equipment.
When it is generated, alternating current is clean and stable. However, during transmission and distribution it is
subject to voltage sags, spikes and complete power failure that may interrupt computer operations, cause data loss
and even damage equipment. The Liebert GXT4 protects equipment from these disturbances.
The Liebert GXT4 is a compact, on-line UPS. An on-line UPS continuously conditions and regulates its output voltage,
whether utility power is present or not. It supplies connected equipment with clean, sinewave power. Sensitive
electronic equipment operates best from sinewave power.
The Liebert GXT4 features a multicolor LCD display to indicate load percentage, input/output voltage and current,
runtime of battery and so on. It also provides self-diagnostic tests by visual configuration.
The Liebert GXT4 can be operated at high efficiency mode (Green Mode) which efficiency could up to 97%.
The Liebert GXT4 includes E models without rack slide kits for different requirement of user.
The Liebert GXT4 has a Liebert IntelliSlot® port for communication between the UPS and a network server or other
computer systems. This port provides detailed operating information including voltages, currents and alarm status to
the host system when used in conjunction with Liebert MultiLink®. Liebert MultiLink can also remotely control UPS
operation.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
2
Chapter 2 System Description
Chapter 2 System Description
The operating principle of the UPS is shown in Figure 2-1.
Dynamic Bypass
Output
Input
Rectifier/PFC
DC-to-DC
Converter
TVSS &
EMI/RFI
Filters
L1
N
L1
N
Inverter
Battery
charger
Battery
G
G
Figure 2-1 Operating principle diagram
2.1 Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters
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 utility line and keep the
sensitive equipment protected.
2.2 Rectifier/Power Factor Correction (PFC) Circuit
In normal operation, the rectifier/power factor correction (PFC) circuit converts utility 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 utility power is used as efficiently as possible by the UPS.
The amount of distortion reflected on the utility is reduced.
This results in cleaner power being available to other devices in the building not being protected by the Liebert®
GXT4™.
2.3 Inverter
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 utility 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.
2.4 Battery Charger
The battery charger utilizes energy from the utility 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.
2.5 DC-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.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 2 System Description
3
2.6 Battery
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 11-5.
2.7 Dynamic Bypass
The Liebert GXT4 provides an alternate path for utility 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.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances in the mains supply.
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4
Chapter 3 Major Components
Chapter 3 Major Components
The Liebert® GXT4™ is composed of three major assemblies to provide easier handling, installation and versatility.
3.1 Main Frame and Electronics
The cabinet is shipped with internal batteries installed and a basic, hardwire distribution box attached and ready to
install.
Note: 10,000VA model's front layout is identical;
the battery compartment is larger.
Upper Bezel
Operation and display panel
Operation and
display panel
Upper Bezel
Lower bezel and battery access door
Figure 3-1 Liebert GXT4 5000VA and 6000VA (front view)
Lower bezel and battery access door
C19 output power
receptacles
REPO connection block
Terminal block communication
External battery connector
USB port
Liebert IntelliSlot port
Output circuit
breakers
IT power system
access cover
C13 output
receptacles
Input circuit breaker
Maintenance
bypass breaker
Output circuit
breaker
Knockouts for
hardwired power input
Liebert GXT4 5000VA and 6000VA
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 3 Major Components
5
C19 output power receptacles
USB port
Reserved
Output circuit breaker
REPO
Terminal block
communication
Maintenance
bypass breaker
Input circuit
breaker
External battery
connector
Output circuit
breaker
Liebert IntelliSlot
port
C13 output
receptacles
Output circuit
breaker
Knockouts for
hardwired power input
IT power system
access cover
Liebert GXT4 10,000VA
Figure 3-2 Liebert® GXT4™ (rear view)
3.2 Removable Power Distribution Box
The UPS is shipped with a power distribution pack installed, as shown in Figure 3-3 and Figure 3-4. This box contains
the UPS input circuit breaker.
Outer surface view of power distribution box
for 5000VA and 6000VA models
PD2-CE6HDWRMBS
Quick-connect
Figure 3-3 Power distribution box for GXT4 5000VA and 6000VA models
Quick-connect
Inner surface view of power distribution box
for 10000VA model (PD2-CE10HDWRMBS)
Front view
Figure 3-4 Power distribution box for GXT4 10,000VA model
Note
Hardwire and hardwire/receptacle boxes that include a manual bypass switch allow AC power to continue to flow from the mains
input to the load while the box is removed from the UPS. For details, refer to 5.3 Connect Input/Output Power.
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Chapter 3 Major Components
3.3 Internal Battery Packs
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.
Battery handle
Battery connector
Front of battery pack
Figure 3-5 Internal battery pack features
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 4 What’s Included
7
Chapter 4 What’s Included
The Liebert® GXT4™ is shipped with the following items:
Terminal Block Communication terminals
Compact disc with:
Liebert MultiLink®
Configuration program & Multi-languages package
User manual (electronic version)
USB cable, one; 2m (6-1/2 ft.) long
Mounting hardware, including screws and handles
Rack slide kits(E models do not include)
Power Distribution Box, installed on Liebert GXT4
Support base set, one
Warnings, safety instructions booklet and WEEE recycling sheet (ISO 14001 compliance)
Note
The Liebert GXT4 External Battery Cabinet shipping package includes one battery cabinet, two spacers for tower configuration
and one DC power cable.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
8
Chapter 5 Installation and Configuration
Chapter 5 Installation and Configuration
Do NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until instructed to do so in
8.2 Initial Startup And Electrical Checks.
Visually inspect the UPS for shipping damage. Report any damage to the carrier and your local dealer or Emerson
representative.
Caution
The UPS is heavy (refer to Chapter 11 Specifications). Take proper precautions when lifting or moving it.
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 40°C (32°F ~104°F).
Note
UPS operation in sustained temperatures outside the range of 15°C ~ 25°C (59°F ~ 77°F) reduces battery life.
5.1 Install Main Cabinet
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 5.1.1 Tower UPS
Installation or 5.1.2 Rack-Mount UPS Installation.
5.1.1 Tower UPS Installation
To install the Liebert GXT4 as a tower:
1. Take the support bases out of the accessories bag (see Figure 5-1).
Connector
Spacer
Support bases
Figure 5-1 Support 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 5-1. 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.
1) Remove the front plastic bezel cover as shown in Figure 5-2.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 5 Installation and Configuration
9
Front plastic
bezel cover
Figure 5-2 Remove the front plastic bezel cover
2) Pull the operation and display panel gently, rotate it 90 degrees clockwise and snap it back into position, as shown
in Figure 5-3.
Operation and
display panel rotated
clockwise 90 degrees
Figure 5-3 Rotate the operation and display panel
3) 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 5-3.
4) Replace the front plastic bezel cover on the Liebert® GXT4™. At this point, the UPS operation 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, as shown Figure 3-1.
5.1.2 Rack-Mount UPS Installation
When using the Liebert GXT4 in a rack, the UPS must be supported by a slide kit, fixed rails or a shelf.
When using the Adjustable Rack Mount Kit, you will use the following instructions. The figures accompanying 5.1.3
Installing Adjustable Rack-Mount Kit—Sold Separately shows the positioning of the rack-mounting brackets. Emerson
recommends taking the internal batteries out of the UPS during rack installation. This will make the UPS cabinet
lighter and easier to handle.
Caution
The Liebert GXT4 is heavy; refer to Chapter 12 Specifications. The UPS must be installed as near the bottom of a rack as
possible. If placed too high, it can make the rack top-heavy and prone to tipping over.
5.1.3 Installing Adjustable Rack-Mount Kit—Sold Separately
This kit contains parts needed to mount several different models of UPS and external battery cabinets into EIA310-D
standard four-post racks that are 18" ~ 32" deep (457mm ~ 813mm). The weight limit per pair of adjustable
rack-mounting brackets is 91kg (200lb). Parts included are shown in Table 5-1.
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Chapter 5 Installation and Configuration
Table 5-1 Included parts in rack-mount kit
Item
Quantity
Rear bracket members
Front bracket members
Inner bracket members
M4 machine screws
M4 locking hex nuts
M5 machine screws
2
2
2
16
8
8
Tools needed for installation are:
one Phillips screwdriver
one 7mm wrench
The adjustable rack-mounting brackets (Part#: RMKIT18-32) feature retaining latches to prevent users from
inadvertently sliding the UPS or battery cabinet out of the rack.
To install the rack mount brackets:
1. Unpack two rack-mounting bracket assemblies and mounting hardware from this kit. Bracket assemblies are
interchangeable between left-hand or right-hand.
2. Remove inner member of each bracket assembly shown in Figure 5-4 by extending it to its outermost position,
depressing the retaining latch and then pulling the inner member out of the bracket assembly.
Rear member
Front member
Retaining latch
Inner member
Figure 5-4 Removing inner member of each bracket assembly
3. Determine the height position inside the rack enclosure where you want to mount the UPS or battery cabinet.
Caution
Reduce the risk of tipping the rack enclosure by placing the UPS or battery cabinet in the lowest possible rack position.
4. Install the rear member of each bracket assembly into the rack enclosure with two M5 screws provided in this kit
(see figure at right). The return flanges on the bracket assembly fit to the inside of rack mounting rails. Insert screws
loosely (finger-tight) into the top and bottom holes of the return flange on the rear member.
Mounting rail
M5 screw (4 pcs)
Rear member
Front member
Figure 5-5 Installing rear member of each bracket assembly
5. Extend the bracket assembly by sliding the front member forward until it touches the front rack mounting rail. Insert
two M5 screws loosely (finger-tight) into the top and bottom holes of the return flange on each front member. Make
sure that the bracket assemblies are at the same mounting height on all four (4) rack mounting rails.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 5 Installation and Configuration
11
e
lid
S
Front vertical pole
Front member
Rear member
M5 screw (4 pcs)
Figure 5-6 Installing front member of each bracket assembly
6. Get eight M4 screws and eight M4 nuts from the hardware pack in this kit. Each nut has a locking, nylon insert that
begins gripping the screw when it is halfway tight. Make sure to tighten the nut and screw completely to ensure
locking action. Fasten the rear member and the front member together using four screws and four nuts per bracket
assembly as shown in Figure 5-6. For maximum support, insert fasteners for each bracket assembly as far apart as
possible, depending on rack depth, while still joining both members (see figures at right). Check alignment of bracket
assemblies and TIGHTEN ALL SCREWS FROM Step 3 to Step 5.
Rear member
M4 screw (8 pcs)
M4 nut (8 pcs)
Front member
Figure 5-7 Fastening the rear member and the front member together
7. Prepare the UPS or battery cabinet (the ‘equipment’) for rack mounting by following instructions in the equipment’s
user manual. The equipment may require additional parts to be added or parts to be removed for rack mounting. After
it is prepared, lay the equipment in rack-mounting position. Fasten the inner members from Step 2 to the equipment
on both sides as shown at right with eight M4 screws provided in the kit. Make sure retaining latch is near the rear of
the equipment as shown (see figure at right).
UPS
Inner member
Retaining latch
+-
1
2
M4 screw (8 pcs)
Figure 5-8 Fastening the inner members to the equipment
8. If available, apply a bead of grease 1" (25mm) long at four places inside the bottom, curved tracks of the front
members as shown below right. The grease will allow the equipment to slide into the bracket assemblies more easily.
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Chapter 5 Installation and Configuration
Caution
1. Lifting equipment into the rack may be a two-person job, depending on the weight of the equipment.
2. Liebert® recommends taking the internal batteries out of the UPS during rack installation. This will make the UPS cabinet
lighter and easier to handle.
3. The Liebert GXT4™ weighs 151 lb. (67kg). For the UPS weight, see Table 11-1; for the battery cabinet’s weight, see Table
11-5.
4. Factory-supplied rack handles are not intended to be used to lift the UPS. The handles are intended to be used to slide the UPS
into and out of the rack.
9. Insert the equipment, with inner members attached in Step 7, into the bracket assemblies by inserting the top and
bottom edges of the inner members into the top and bottom curved tracks of the front members and sliding the
equipment into the rack (see Figure 5-9). Ends of inner members are tapered to allow the rear of the equipment to be
angled upward before insertion, if space allows.
Then the rear, bottom edges of the inner members can be placed into the front edge of the bottom tracks and the
front of the equipment can be tipped up so they are level to insert the top edges of the inner members before sliding
the equipment into the rack (see Figure 5-9). The equipment should move smoothly into the bracket assemblies. If it
does not, recheck the alignment of the front and rear members from Steps 4 and 5.
Insert
Front member
Inner member
Figure 5-9 Inserting the UPS
10. Secure the front of the equipment to the rack mounting rails to prevent the equipment from sliding out of position.
If securing holes are provided on the front of the equipment that align with the center holes on the return flange of the
front members, you can use the four extra M5 screws provided in the kit to secure the equipment. Otherwise, the
equipment should be secured to the front of the rack with four customer-supplied fasteners.
5.2 External Battery Cabinet Installation
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 or stacked beneath the UPS. External
battery cabinets can be used in either a rack-mount or tower configuration.
Caution
The external battery cabinet(s) are heavy (refer to Chapter 12 Specifications). Take proper precautions when lifting them.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 5 Installation and Configuration
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10,000VA
Liebert GXT4
Cables connecting
battery cabinets to
10,000VA
Liebert GXT4
Battery cabinet
Figure 5-10 External battery cabinets connected to 10,000VA Liebert® GXT4™
1. Inspect the external battery cabinet for freight damage. Report damage to the carrier and your local dealer or
Emerson representative.
2. For slide rail installations, first remove the top/side fin. Top/side fin slides forward and then lift up to remove.
Optional rack-mount handles are shipped with the external battery cabinet and may be installed at this time if desired.
3. Securing hardware and slide rails are sold separately. Please contact your local dealer or Emerson representative
for these additional options and any assistance needed. Fasten the slides into position with the screws per the
instructions included with the slide rails.
4. 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.
5. Put the UPS in Bypass Mode by operating LCD configuration
6. Verify the External Battery Cabinet breaker is in the Off position.
7. Connect the supplied external battery cabinet cable to the rear of the external battery cabinet, then to the rear of
the UPS.
8. Turn the External Battery Cabinet breaker to the On position.
9. Operating LCD panel to return the unit to Inverter Mode.
10. Verify the circuit breaker on the External Battery Cabinet is in the On position.
11. Use the included configuration program or LCD to program the UPS for the number of external battery cabinets
connected. Instructions for the configuration program are in 6.0 Configuration Program.
12. The UPS is now equipped with additional backup battery run time. For approximate battery run times, refer to
Table 11-5.
Note
1. When removing the External Battery Cabinet, the circuit breaker on the rear of the cabinet must be turned off before
disconnecting the cable.
2. 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.
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Chapter 5 Installation and Configuration
5.3 Connect Input/Output Power
Extract these captive screws
Extract these captive screws
Maintenance bypass breaker
Power distribution box removal from
5000VA and 6000VA models
Maintenance bypass breaker
Power distribution box removal from 10,000VA model
Figure 5-11 Power Distribution box removal—captive screws and maintenance bypass breaker
The UPS should arrive with the power distribution box attached. If the box needs to be removed for maintenance or
replacement, follow these instructions to remove and install the power distribution pack.
To remove:
1. Ensure maintenance bypass lamp is on. To place the unit in maintenance bypass, refer to 8.4 Put Liebert GXT4
In Bypass.
2. Loosen one captive screw over the maintenance bypass breaker.
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 breaker off.
5. Loosen other captive screws until the power distribution box releases.
6. Remove the power distribution box from the UPS and set it aside.
7. Loosen screws over the plastic cover for the connector on the rear of the panel.
8. Slide plastic cover over connector and tighten screws.
Note
Do not operate the UPS with this box removed. To disconnect all power to this box and load, the utility input power also must be
disconnected.
To install:
1. Align connectors and press box onto UPS
2. Hold box firmly against UPS and tighten captive screws except one over the maintenance bypass breaker.
3. Turn the output and input breaker 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.
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.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 5 Installation and Configuration
15
Distribution box electrical connections
Electrical connections are made through a removable power distribution box that attaches to the rear of the UPS.
PD2-CE6HDWRMBS fits the 5000 and 6000VA models of the Liebert GXT4
PD2-CE10HDWRMBS fits the 10,000VA model 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 5-2 Branch circuit breaker ratings
Unit Rating
5000VA
Maximum Breaker Rating
D Type 32A
6000VA
10,000VA
D Type 63A
Figure 5-12 Distribution box electrical connections diagram
Terminal block connections—PD2-CE6HDWRMBS and PD2-CE10HDWRMBS
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 5-3 Electrical specifications
Recommended
(Maximum) External
Overcurrent Protection
Recommended Wire
(Including ground wire)
(75°C copper wire)
Maximum Wire
Accepted by
Terminal
Tightening
Torque
UPS Model
Terminal Block
GXT4-5000RT230
GXT4-5000RT230E
GXT4-6000RT230
GXT4-6000RT230E
GXT4-10000RT230
GXT4-10000RT230E
32A
63A
4mm2 (10AWG)
10mm2 (6AWG)
6mm2 (8AWG)
16mm2 (4AWG)
2.26Nm (20 in-lb)
PD2-CE6HDWRMBS
PD2-CE10HDWRMBS
Figure 5-13 Terminal block connections—PD2-CE6HDWRMBS and PD2-CE10HDWRMBS
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Chapter 5 Installation and Configuration
Note
1. 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.
2. 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.
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Chapter 6 Configuration Program
17
Chapter 6 Configuration Program
The final step of installation may require custom configuration of your UPS using the enclosed configuration program.
Some configuration settings may be changed only while the UPS is off. These should be set before the UPS is put
into full-time service powering the critical load.
For most users operating with 230VAC and with no external batteries, the factory default settings will be adequate.
6.1 Configuration Program Features
Select L-N output voltages to match local voltages.
Enable/Disable Auto-Restart.
Select frequency converter operation with a fixed output frequency of 50 or 60 Hz.
Set the Low Battery Warning alarm time from 2 to 30 minutes.
Enable/Disable the Auto-Battery test.
Set the Auto-Battery test to 8, 12, 16, 20 or 26 weeks.
Specify the number of external battery cabinets connected to the UPS to adjust the remaining run time
calculations reported by Liebert® software products.
Modify the shutdown setting of the terminal block (for information on pin assignments, see Table 5-3).
6.2 What You Will Need
In addition to the Liebert GXT4™ UPS, you will need the configuration program CD and USB cable included in the
UPS accessory box. A Windows 95® or later computer, desktop or laptop, is also required to set up and run the
configuration program.
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Chapter 7 Operation And Display Panel
Chapter 7 Operation And Display Panel
This chapter describes the operation and display panel of the Liebert GXT4, including LED indicators, control buttons
and LCD display panel.
The operation and display panel is on the front panel of the Liebert GXT4 (see Figure 7-1), which provides four
control buttons, seven LED indicators and a LCD display panel, as shown in Figure 7-1.
Inverter indicator Battery indicator
Bypass indicator
Fault indicator
LCD display panel
Green mode indicator
ENTER button
ESC button
UP button DOWN button
Figure 7-1 Operation and display panel
7.1 LED Indicators
The operation and display panel provides seven LED indicators: inverter indicator, bypass indicator, battery indicator,
fault indicator, and green mode indicator. Their descriptions are listed in Table 7-1.
Table 7-2 LED indicators
LED Indicators
Inverter indicator
LED color
Green
Description
On when the inverter is supplying power, and off otherwise
On when the load is supplied by the mains through automatic/manual
bypass, and off otherwise
Bypass indicator
Amber
Battery indicator
Fault indicator
Amber
Red
On when the load is supplied by the battery, and off otherwise
On when an error has occurred within the UPS, and off otherwise
On when the UPS is in green mode, and off otherwise
Green mode indicator
Green
Caution
Do not switch off the UPS or switch from online to bypass, otherwise the loads will no longer be supported.
7.2 Control Buttons
The operation and display panel provides four control buttons: ESC button, UP button, DOWN button and ENTER
button. Their descriptions are listed in Table 7-2.
Table 7-3 Control buttons
Control buttons
ESC button
Description
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
Pressing this button can enter the next level menu or confirm the parameter setting value
UP button
DOWN button
ENTER button
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Chapter 7 Operation And Display Panel
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7.3 LCD Display Panel
The operation and display panel provides a LCD display panel, enabling you to view the UPS status and change the
UPS settings.
7.3.1 Startup Screen
When the UPS is starting up, the UPS begins self-testing, and then the LCD display panel will display EMERSON
icon for about 10s, as shown in Figure 7-2.
Figure 7-2 Startup screen
7.3.2 ON Screen
About 10s later, the LCD display panel will display the corresponding ON screen depending on whether the AC is
available, as shown in Figure 7-3.
AC NOT AVAILABLE
TURN ON UPS
START ON BATTERY?
YES NO
YES NO
O / P : 230V 50HZ 17.6A O / P : 230V 50HZ 17.6A
I / P : 230V 50HZ 18.0A I / P : 230V 50HZ 18.0A
BATT : 100% 100MINS
LOAD : 80%
BATT : 100% 100MINS
LOAD : 80%
Figure 7-3 Startup screen
Select ‘YES’ and press the ENTER button, the UPS will start up, and the LCD display panel will display ‘START
SUCCESSFUL’, as shown in Figure 7-4.
START SUCCESSFUL
O / P : 230V 50HZ 17.6A
I / P : 230V 50HZ 18.0A
BATT : 100% 100MINS
LOAD : 80%
Figure 7-4 ‘START SUCCESSFUL’ screen
7.3.3 Default Screen
Press any button in the ‘STATTUP SUCCESSFULLY’ screen to enter the default interface, as shown in Figure 7-5.
GXT4 - UPS
6KVA
O / P : 230V 50HZ 17.6A
I / P : 230V 50HZ 18.0A
BATT : 100% 100MINS
LOAD : 80%
Figure 7-5 Default screen
In the default screen, the LCD display panel will display the UPS model, operation mode (ONLINE, GREEN, GREEN
AUTO, and BYPASS), output parameters, input parameters, battery capacity and load percentage.
If no control button is pressed within two minutes, the LCD display panel will enter a screen-protection state (the back
lighting is off) until any control button is pressed.
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Chapter 7 Operation And Display Panel
7.3.4 Main Menu Screen
Press any button in the default screen to enter the Main Menu screen, as shown in Figure 7-6.
1
2
3
4
5
STATUS
CONFIGURATION
CONTROL
LOG
ABOUT
Figure 7-6 Main Menu screen
To select a submenu, press the UP or DOWN button to move the cursor to the required item, and press the ENTER
button to enter its submenu or set its parameter.
STATUS screen
Select Main Menu -> 1 STATUS to enter the STATUS screen, displaying OUTPUT, LOAD, INPUT,PARALLEL,
BATTERY and TIME SINCE STARTUP, as shown in Figure 7-7.
OUTPUT
VOLT
LOAD
INPUT
PARALLEL
:
:
230V
50Hz
17.6A
VOLT
FREQ
CURR
:
:
:
230V
50HZ
18.6A
VOLT
FREQ
CURR
:
:
:
230V
50HZ
17.6A
CAP
WATT :
VA
:
90%
4000W
4000VA
FREQ
:
CURR
POWER :
:
POWER:
4000WH
4000WH
BATTERY
PARALLEL
TIME SINCE STARTUP
05D 15H 30M
CAPACITY
RUNTIME
VOLTAGE
:
:
:
90%
100MINS
148V
CAP
WATT :
VA
:
90%
4000W
4000VA
:
Figure 7-7 STATUS screen
CONFIGURATION screen
Select Main Menu -> 2 CONFIGURATION to enter the CONFIGURATION screen. This menu has five submenus, as
shown in Figure 7-8.
1
2
3
4
5
UPS
BATTERY
ECO
LCD
FACTORY DEFAULT
Figure 7-8 CONFIGURATION screen
In the CONFIGURATION screen, press the UP or DOWN button to move the cursor to the required item, and press
the ENTER button to enter its submenu or set its parameter.
1. UPS screen
Select Main Menu -> 2 CONFIGURATION -> 1 UPS to enter the UPS screen. This menu has seve n screens, as
shown in Figure 7-9.
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Chapter 7 Operation And Display Panel
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AUDIBLE ALARM
ON OFF
STARTUP ON BYPASS
YES NO
ENABLE AUTO RESTART
YES NO
GUARANTEE SHUTDOWN
YES NO
PARALLEL
FREQUENCY SELECTION
VOLTAGE SELECTION
AUTO - BYPASS ENABLE
AUTO - BYPASS DISABLE
TYPE
3
3
230
ADDRESS
Figure 7-9 UPS screen
Press the UP or DOWN button to move the cursor to the required item, and press the ENTER button to confirm the
settings.
2. BATTERY screen
Select Main Menu -> 2 CONFIGURATION -> 2 BATTERY to enter the BATTERY screen. This menu has four
submenus, as shown in Figure 7-10.
BATT REPLACE TIME
EXT BATT CABINET
CABINETS
LOW BATTERY TIME
0 2 CABINETS
BATT TEST INTERVAL
2 6 WEEKS
0
2 0 13 Y 0 8 M 0 8 D
Figure 7-10 BATTERY screen
Press the UP or DOWN button to increase or decrease the value of the settings, and press the ENTER button to
confirm it.
3. OPERATION MODE screen
Select Main Menu -> 2 CONFIGURATION -> 3 OPERATION MODE to enter the OPERATION MODE screen, as
shown in Figure 7-11.
OPERATION MODE
ONLINE MODE
GREEN MODE ON
GREEN MODE AUTO
Figure 7-11 OPERATION MODE screen
Press the UP or DOWN button to move the cursor to the required item, and press the ENTER button to confirm the
settings.
4. LCD screen
Select Main Menu -> 2 CONFIGURATION -> 6 LCD to enter the LCD screen. This menu has two submenus, as
shown in Figure 7-12.
1
2
LANGUAGE
COLOR
Figure 7-12 LCD screen
1) Select ‘1 LANGUAGE’ and press the ENTER button to enter the LANGUAGE screen, as shown in Figure 7-13.
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Chapter 7 Operation And Display Panel
1
2
3
ENGLISH
中文
Upload others
Figure 7-13 LANGUAGE screen
2) Select ‘2 COLOR’ and press the ENTER button to enter the COLOR screen, as shown in Figure 7-14.
EMERSON
EMERSON
EMERSON
EMERSON
Figure 7-14 COLOR screen
5. FACTORY DEFAULT screen
Select Main Menu -> 2 CONFIGURATION -> 7 FACTORY DEFAULT to enter the FACTORY DEFAULT screen, as
shown in Figure 7-15.
RESET ALL SETTINGS
TO FACTORY DEFAULT
SETTINGS?
YES NO
Figure 7-15 FACTORY DEFAULT screen
CONTROL Screen
Select Main Menu -> 3 CONTROL to enter the CONTROL screen, as shown in Figure 7-16.
1
2
3
TURN ON & OFF
ALARM CONTROL
BATT TEST
Figure 7-16 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.
1. TURN ON & OFF screen
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, as shown in
Figure 7-17.
TURN UPS OFF
TURN UPS ON
TURN UPS BYPASS
The UPS is off
The UPS is on
Figure 7-17 TURN ON & OFF screen
2. ALARM CONTROL screen
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Chapter 7 Operation And Display Panel
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Select Main Menu -> 3 CONTROL -> 2 ALARM CONTROL to enter the ALARM CONTROL screen, as shown in
Figure 7-18.
1
2
AUDIBLE ALARM ON
AUDIBLE ALARM OFF
Figure 7-18 ALARM CONTROL screen
3. BATT TEST screen
Select Main Menu -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, as shown in Figure 7-19.
1
2
3
START
CANCEL
BATT TEST RESULT
Figure 7-19 BATT TEST screen
LOG Screen
Select Main Menu -> 4 LOG to enter the LOG screen, as shown in Figure 7-20.
1
2
EVENT LOG
CLEAR LOG
Figure 7-20 LOG screen
1. Select Main Menu -> 4 LOG -> 1 EVENT LOG to enter the EVENT LOG screen, as shown in Figure 7-21.
254/255
255 OD 1H 17M AGO
UPS switch to Online
mode
Figure 7-21 ALL LOG screen
2. Select Main Menu -> 4 LOG -> 2 CLEAR LOG to enter the CLEAR LOG screen, as shown in Figure 7-22.
DO YOU WANT TO
CLEAR EVENT LOGS?
YES NO
Figure 7-22 CLEAR LOG screen
Press the UP or DOWN button to move the cursor to the required item, and press the ENTER button to confirm the
settings.
ABOUT Screen
Select Main Menu -> 5 ABOUT to enter the ABOUT screen, as shown in Figure 7-23.
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Chapter 7 Operation And Display Panel
Figure 7-23 ABOUT screen
The ABOUT screen displays: UPS model, SN, software version and hardware version.
Menu structure
The menu structure of the LCD display panel is shown in Figure 7-24.
Figure 7-24 Menu structure
7.3.5 Prompt 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. The prompts and meanings are given in Table 7-3.
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Chapter 7 Operation And Display Panel
25
Table 7-4 Prompts and meanings
No.
1
Prompt
Utility power restored
Meanings
The utility power recovers, and the UPS transfers back to Utility (AC)
mode
The bypass power recovers, and the UPS can transfers back to
bypass
2
Bypass power restored
3
4
UPS return from a low battery condition
UPS return from battery mode
The UPS transfers back to Utility (AC) mode from Battery low mode
The UPS transfers back to Utility (AC) mode from Battery mode
Conditions of battery test do not meet,UPS battery test is not
allowed
5
UPS battery test unallowed
6
7
UPS self test successful
UPS self test in progress
UPS turn off
The UPS self-test is successfully performed
The UPS is performing self-test
8
The UPS shuts down and has no output
9
UPS TURN ON
The UPS starts up successfully and supplies power to the load
The UPS Maintenance bypass output
10
11
UPS Maintenance bypass output
UPS shutdown command received
The UPS shuts down through communication
The shutdown command sent through Multilink or SNMP card to the
UPS is cancelled
12
13
14
UPS shutdown process had been cancelled
UPS switch to Green mode
The UPS transfers back to Green mode, saving more electricity
When the input utility power satisfies the condition of Auto Green
mode, the UPS will transfer back to Auto Green mode
The UPS transfers back to Online mode, supplying power to the
load through the inverter
UPS switch to Auto Green mode
15
16
17
UPS switch to Online mode
UPS internal temperature return to normal
UPS load return from overload
The internal temperature of the UPS recovers to normal range
The loads are reduced, and the UPS recovers to normal state from
overload
The beeper is disabled, and no audible alarm will be generated
when faults or warnings occur again
18
19
Beeper Disable
Beeper Enable
The beeper is enabled, and audible alarms will be generated when
faults or warnings occur again
7.3.6 Warning List
All UPS warning messages are described in Table 7-4.
Table 7-5 Warning list
No.
1
Warning
Description
The utility power is not available, or it cannot satisfy the
requirements for the UPS to operate
Utility power not available
2
UPS batteries low and exhausted soon
UPS has switched to battery mode
The battery capacity is low and will be exhausted soon
The utility power is abnormal or the PFC side is faulty, the UPS
transfers back to Battery mode
3
The UPS transfers back to Bypass mode, at this point, the input
utility power supplies power to the load directly, and the load is
not protected
4
UPS Switch to Bypass
The bypass power is not available, or it cannot satisfy the
requirements for the UPS to transfers to bypass (include phase
angle abnormal for two phase model)
5
6
Bypass power not available
Input power wiring error
Ground is not connected or L/N wires are reversed or Input
phase error
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Chapter 7 Operation And Display Panel
7.3.7 Fault List
All UPS fault messages are described in Table 7-5.
Table 7-6 Fault list
No.
1
Fault
Description
UPS self test failed
PFC Out of Order
UPS overload
The battery is bad or weak
2
PFCfailure occurs
3
The UPS is overloaded
The inverter is faulty
The battery is bad or weak
4
Inverter Out of Order
Battery Weak/Bad
Output Short-circuit
DC Bus Over-voltage
5
6
The output connection is short-circuited
The DC bus is faulty
7
Over-temperature occurs to the UPS and the UPS will transfer to
Bypass mode
8
UPS Over-temperature
9
Charger Out of Order
Fan Out of Order
The charger is faulty
10
11
At least one fan is faulty
DC Bus Discharge Fail
DCDC failure occurs
If a fault occurs, the UPS automatically switches to Bypass mode. Only in the case of a battery disconnection fault will
the original operating mode be maintained. 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.
If a fault occurs, proceed as follows:
1. Enter the ALARM CONTROL screen (see Figure 7-18), and select ‘AUDIABLE ALARM ON’ or ‘AUDIBLE ALARM
OFF’ to switch on/off the alarm.
2. Enter the EVENT LOG screen (see Figure 7-21), and select ‘3 CRITICAL’ to view the fault log.
Note
Please wait patiently when you enter the EVENT LOG screen to view the historical fault log. Because the LCD display panel
needs to read the faults from the DSP at a relatively slow reading speed, the reading time depends on the uploaded information
quantity.
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Chapter 8 Operation
27
Chapter 8 Operation
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 the utility 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.
8.1 Startup Checklist For 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.
8.2 Initial Startup And Electrical Checks
1. Verify that the Input/Output circuit breakers are off.
2. During initial system checks, disconnect all loads (open load disconnects).
3. Inspect all wiring, cables and connection.
4. If external battery cabinets are used, verify that the battery interconnect cables are fully inserted in the sockets.
5. Place the manual bypass breaker in BYPASS position.
6. Turn on the branch circuit disconnect to apply voltage to the input terminal block.
7. Using a voltmeter, verify the expected L1-N (L2) voltage.
Verify that the same voltages appear at the Output terminals. The Bypass lamp by the switch will light.
8. After verifying proper input voltage to the UPS terminal block, turn off the branch circuit power, close all access
panels to the distribution box and reapply input power.
9. Close the Input circuit breaker located on the distribution box. The green AC INPUT lamp should illuminate on the
front panel.
10. Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS ON’ to turn on the UPS.11. Close the Output circuit breaker on the rear of the power distribution box. The light
by the input breaker will illuminate.
12. Return the breaker to the Inverter position. The output terminal block will be powered at this time.
13.Connect all loads for normal operation.
8.3 Manual Battery Test
To initiate a manual battery test,
Select Main Menu -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, and select ‘1 START’ to start
manual battery test.
while the UPS is operating from utility power with no alarm conditions present.
8.4 Put Liebert® GXT4™ In Bypass
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS BYPASS’ to transfer the UPS to bypass.
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Chapter 8 Operation
8.5 Shut Down Liebert GXT4
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS OFF’ to turn off the UPS.
8.6 Disconnecting Input Power From Liebert GXT4
1. After the UPS has been shut down as detailed in 8.5 Shut Down Liebert GXT4, turn off the Output Circuit
Breaker.
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.
8.7 Maintenance 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. Turn the UPS to internal bypass based on 8.4 Put the Liebert GXT4 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.
8.8 IT Power System Configuration
1. Remove screws on the IT Power System Access Cover, as shown in Figure 8-1.
Remove screws
Remove screws
10,000VA model
5000VA and 6000VA models
Figure 8-1 Removing cover from IT Power System Connectors compartment
2. Disconnect the connectors, as shown in Figure 8-2.
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Chapter 8 Operation
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IT power system connectors
IT power system connectors
10,000VA model
5000VA and 6000VA models
Figure 8-2 Disconnecting the connectors
3. Install IT Power System Access Cover and screws.
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Chapter 9 Communication
Chapter 9 Communication
This chapter introduces communication of the Liebert® GXT4™ UPS, including communication interface port,
terminal block, Liebert IntelliSlot® communication cards and remote emergency power off.
9.1 Communication Interface Port
The Liebert® GXT4™ UPS has a terminal block on the rear of the UPS unit. Several signals are provided on this port
and are assigned as follows.
9.2 Terminal Block
The terminal block includes eight pins, as shown in Figure 9-1.
Figure 9-1 Terminal block communication pin layout
9.2.1 Any-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 the pins in Set 3.
Remote Any Mode Shutdown can be performed using a switch connected to the pins in Set 3 and mounted at a
remote location.
Activation of the Any Mode Shutdown will be logged as an event in the event history log.
Note
Remote Power Off will be performed either by NO or NC contact of Any Mode Shutdown. The current limited source for the
optocoupler (+12VDC, 50mA) will be available from UPS. The connection to UPS for remote connection will be via terminal
block connector. Any Mode Shutdown wiring must conform to all national, regional and local wiring codes and laws.
Warning
When the Auto-enable output option is selected and the UPS output is disabled using the pins in Set 3, the Liebert GXT4’s output
can turn On automatically and without warning if the connection of the pins in Set 3 is changed.
9.2.2 Battery 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 the pins in Set 4.
Remote Battery Mode Shutdown can be performed using a switch connected to the pins in Set 4 and mounted
at remote location.
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Chapter 9 Communication
Activation of the Battery Mode Shutdown will be logged as an event in the event history log.
31
Note
1. Remote Power Off will be performed by NO contact.
2. The current limited source for the optocoupler (+12VDC, 50mA) will be available from UPS. The connection to the Liebert®
GXT4™ for remote connection will be via terminal block connector.
3. Battery Mode Shutdown wiring must conform to all national, regional and local wiring codes and laws.
4. This signal must last for 1.5 seconds or longer.
5. 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 utility 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.
9.2.3 On 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.
9.2.4 Low 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
9.3 Liebert IntelliSlot® Communication Cards
The Liebert IntelliSlot port accepts three optional cards:
Liebert IntelliSlot SNMP Card
Liebert IntelliSlot Relay Card
Liebert IntelliSlot 485 Card
The Liebert IntelliSlot SNMP Card provides SNMP monitoring and control of the UPS across the network.
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom-wired applications and delivers
support for built-in shutdown for AS/400 systems.
The Liebert IntelliSlot 485 Card is used to connect the UPS and computer system.
Follow instructions provided with the Liebert IntelliSlot card to configure Liebert MultiLink®, the UPS or any additional
ancillary product for the Liebert GXT4. These instructions are available at multilink.liebert.com
9.3.1 Liebert® MultiLink®
Liebert MultiLink monitors the UPS continuously and can shut down a computer or server in the event of an extended
power failure.
Liebert MultiLink can also be configured for use without the USB cable when the Liebert IntelliSlot®
SNMP/Web card is installed in the UPS. Additionally, Liebert MultiLink can be configured to coordinate shutdown
across the network with other computers running Liebert MultiLink when you purchase
a Liebert MultiLink License Kit. For more information about the Liebert IntelliSlot SNMP/Web
representative.
Several option cards are available for use in the Liebert IntelliSlot port of the Liebert GXT4™. The
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Chapter 9 Communication
Liebert IntelliSlot SNMP/Web Card provides SNMP and Web-based monitoring and control of the UPS across the
network.
The Liebert IntelliSlot MultiPort 4 Card allows installing Liebert MultiLink software on four computers and coordinate
shutdown in the event of a power failure.
The Liebert IntelliSlot Relay Card provides dry contact relay outputs for custom wired applications and delivers
support for built-in shutdown for AS/400 systems.
Caution
To maintain safety (SELV) barriers and for electromagnetic compatibility, signal cables should be shielded and run separate from
all other power cables, where applicable.
9.4 Remote Emergency Power Off
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.
Figure 9-2 REPO switch connection diagram
Caution
To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables should be shielded and run separately from
power cables.
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Chapter 10 Maintenance
33
Chapter 10 Maintenance
This section describes replacing the internal battery pack, battery charging, precautions, checking UPS status,
checking UPS functions.
10.1 Replacing Internal Battery Pack
The Liebert GXT4™ is designed to allow the user to replace the internal battery pack safely. Read the safety cautions
before proceeding. Contact your local dealer or Emerson representative to obtain the part number and pricing of the
appropriate replacement battery pack.
Battery replacement procedures
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 10-1.
3. Lay the battery door and screws aside for reassembly.
Screws
Battery door
(6pcs)
Front bezel
Figure 10-1 Removing the front plastic bezel cover and battery door
Note
10,000VA model is shown in Figure 10-1; 5000VA / 6000VA model arrangement is the same except smaller.
4. Gently pull the battery wires out and disconnect the battery plugs and battery receptacles, as shown in Figure 10-2.
Battery receptacle
Battery connector
Battery receptacle
Battery connector
Figure 10-2 Disconnecting the battery plug and battery receptacle (front view)
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
34
Chapter 10 Maintenance
Note
10,000VA model is shown in Figure 10-2; 5000VA / 6000VA model arrangement is the same except smaller.
5. Grasp the battery handle and pull one of the internal battery packs out of the UPS, as shown in Figure 10-3.
Repeat this step if both battery packs will be replaced. Each model has two battery packs.
Internal
battery pack
Battery handle
Pull out with
battery handle
5000VA & 6000VA models
Internal
battery pack
Battery
handle
Pull out with
battery handle
10,000VA models
Figure 10-3 Pulling out the 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.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 10 Maintenance
35
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.
10.2 Battery 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.
10.3 Precautions
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.
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.
10.4 Checking 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.
10.5 Checking 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. Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS BYPASS’ to transfer the UPS to bypass. Check whether the LCD display panel displays the warning normally.
2. Select Main Menu -> 2 CONFIGURATION -> 3 OPERATION MODE to enter the OPERATION MODE screen (see
Figure 3-11), and select ‘GREEN MODE ON’ or ‘GREEN MODE AUTO’ to control the UPS operation mode. Check
whether the LCD display panel displays the mode normally.
3. Select Main Menu -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, and select ‘1 START’ to start
manual battery test. Check whether the UPS can operate normally in Battery mode. If not, stop and contact your local
Emerson representative or Emerson Channel Support.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
36
Chapter 11 Specifications
Chapter 11 Specifications
Table 11-1 UPS specifications
Product model
GXT4-6000RT230
GXT4-5000RT230
GXT4-5000RT230E
4000W/5000VA
GXT4-10000RT230
GXT4-10000RT230E
9000W/10000VA
Parameters
GXT4-6000RT230E
4800W/6000VA
Dimensions, Rack Mount, W x D x H
430 × 574 × 217 (16.9 × 22.4 × 8.5)
Unit, mm (in)
430 × 581 × 261 (16.9 × 22.9 × 10.3)
530 × 745 × 563 (20.9 × 29.3 × 22.2)
Shipping, mm (in)
516 × 745 × 530 (20.3 × 29.3 × 20.9)
Weight, kg (lb)
Unit, kg (lb)
60 (132.2)
70 (154.3)
Shipping, kg (lb)
Input AC Parameters
Nominal Operating
Frequency
50Hz or 60Hz (Factory Default is 50Hz)
Factory Default VAC
230Vac
220/230/240Vac
User Configurable VAC
(May be modified using included configuration program)
Operating Voltage Range
Without Battery Operation
Input Frequency w/o Battery
Operation
176Vac ~ 280Vac
40Hz ~ 70Hz
280Vac
Maximum Allowable VAC
PD2-CE10HDWRMBS Standard
(See 3.3 Removable Power
Distribution Box)
PD2-CE6HDWRMBS Standard
Input Power Connection
(See 3.2 Removable Power Distribution Box)
Output AC Parameters
Factory Default VAC
AC-AC Efficiency
230Vac
92% AC-AC
PD2-CE10HDWRMBS Standard
(See 3.2 Removable Power
Distribution Box)
PD2-CE6HDWRMBS Standard
Output Connections
(See 3.2 Removable Power Distribution Box)
Frequency
50Hz or 60Hz, Nominal
Sinewave
Waveform
Main Mode Overload
>200% for 5 cycles; 151 - 200% for 1 seconds; 131-150% 10 seconds; 105 - 130% 1 minute
Internal Battery Charger
Charger Current
1.3
2.6
Battery Parameters
Type
Valve-regulated, non-spillable, lead acid
20 × 12V
Quantity × V
9AH battery, CSB HR1234W
or Panasonic UP-RW1245
Battery Mfr. / Part #
5AH battery, CSB HR1221W or YUASA NPH5-12
See Table 11-5
Backup Time
Recharge Time (Internal
Batteries)
3 hr. to 90% capacity after full discharge into 100% load
Bypass Protection Limits
Disable Bypass Operation
Re-Enable Bypass Operation
Disable Bypass Operation
If input voltage exceeds ±15% of the nominal voltage
If input voltage returns to within ±10% of nominal output voltage
When the input frequency prevents synchronous operation
Environmental
Operating Temp, °C (°F)
Storage Temp, °C (°F)
Relative Humidity
0 to 40 (32 to 104)see Table 11-2
-15 to 50 (5 to 122)
0% to 95%, non-condensing
Operating Elevation
Up to 1000m (3281 ft) at 25°C (77°F) without derating
Audible Noise less than <55 dBA, at 1 meter from the rear <50 dBA, at 1 meter from the front or sides
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 11 Specifications
37
Product model
GXT4-6000RT230
GXT4-5000RT230
GXT4-5000RT230E
4000W/5000VA
GXT4-10000RT230
GXT4-10000RT230E
9000W/10000VA
Parameters
GXT4-6000RT230E
4800W/6000VA
Agency
Safety
IEC62040-1:2008 version, GS mark
IEC/EN/AS 62040-2 2nd Ed (Cat 2 – Table 6)
IEC/EN EN61000-4-2, Level 4, Criteria A
IEC/EN EN61000-4-3, Level 3, Criteria A
IEC/EN EN61000-4-4, Level 4, Criteria A
IEC/EN EN61000-4-5, Level 3, Criteria A
ISTA Procedure 1A&E
EMI/EMC/C-Tick EMC
ESD
Radiated Susceptibility
Electrical Fast Transient
Surge Immunity
Transportation
Table 11-2 Operating temperature parameters
Ambient Temperature, °C (°F)
GXT4-5000/6000RT230
GXT4-5000/6000RT230E
GXT3-10000RT230
pf @30°C ± 3°C (pf @ 86°F ± 5.4°F)
0.8pf
pf @40°C ± 3°C (pf @ 104°F ± 5.4°F)
0.8pf
0.9pf
0.8pf
GXT3-10000RT230E
Table 11-3 Power distribution specifications
Model Number
PD2-CE6HDWRMBS
32 Amps
PD2-CE10HDWRMBS
63 Amps
Amp Rating
Input Power Connection
Output Power Connection
Single-phase (L-N-G) hard-wired, 6mm2~ 10mm2 (8 ~ 10AWG)
Single-phase (L-N-G) hard-wired, 6mm2 ~ 10mm2 (8 ~ 10AWG)
Two IEC320 C19 16A/250V Sockets
Four IEC320 C19 16A/250V Sockets,
Four C13 10A/250V Sockets
Includes:
Six C13 10A/250V Sockets
Manual Bypass Switch with Indicator Lamps
Manual Bypass Switch with Indicator Lamps
Input Branch Circuit
32A
63A
Breaker, Supplied by User
Table 11-4 External battery cabinet specifications
Model Number
Parameter
GXT4-240VBATT
GXT4-240VBATTE
GXT4-5000RT230E
GXT4-6000RT230E
GXT4-10000RT230E
GXT4-5000RT230
GXT4-6000RT230
GXT4-10000RT230
Used UPS model
Dimensions, Rack Mount, W × D × H, mm (in)
Unit
430 × 581 × 173 (16.9 × 22.9 × 6.8)
530 × 745 × 475 (20.9 × 29.3 × 18.7)
Weight, kg (lb)
Shipping
Unit
65 (143.3)
Shipping
79.8 (175.6)
76 (167.6)
Battery Parameters
Type
Valve-regulated, non-spillable, lead acid
20 × 12V × 9.0 AH
Quantity × V × Rating
Battery Mfr / Part #
Backup Time
CSB/HR12460
See Table 11-5
Environmental
Operating Temp, °C (°F)
Storage Temp, °C (°F)
Relative Humidity
0 to 40 (32 to 104);see Table 11-2
-15 to 50 (5 to 122)
0% to 95%, non-condensing
Up to 1000m (3280.83 ft.) at 25°C (77°F)
Agency
Operating Elevation
Safety
IEC62040-1:2008 version
ISTA Procedure 1E
Transportation
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
38
Chapter 11 Specifications
Number of batteries
Table 11-5 Battery run time
230VAC RT Models
Load
5000VA
96
6000VA
91
10000VA
104
48
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
59
50
45
35
26
31
23
18
25
18
13
Internal battery
19
14
10
14
11
7
13
9
6
11
8
4
9
7
4
337
171
121
86
309
133
93
268
112
64
67
48
70
48
35
Internal battery + 1
external battery cabinet
52
38
27
40
30
21
35
25
17
30
22
14
25
19
13
617
337
248
164
128
99
563
276
178
120
93
423
207
110
77
Internal battery + 2
57
external battery cabinets
73
49
75
62
40
68
53
29
63
46
25
53
39
23
842
509
344
274
216
155
120
102
93
751
364
294
201
146
113
93
576
278
167
112
83
Internal battery + 3
external battery cabinets
66
55
77
47
67
39
77
62
35
1208
656
486
336
291
236
173
147
132
107
1099
540
354
279
221
159
132
106
94
668
335
232
151
113
87
Internal battery + 4
external battery cabinets
73
58
52
85
48
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
Chapter 11 Specifications
39
230VAC RT Models
Number of batteries
Load
5000VA
1427
772
605
454
336
290
239
208
179
142
1574
1021
685
556
443
327
283
257
233
189
6000VA
1340
649
497
326
278
228
178
142
127
111
1500
722
593
414
317
274
232
189
158
140
10000VA
905
452
275
207
140
113
89
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Internal battery + 5
external battery cabinets
75
61
57
1091
535
305
247
188
137
113
88
Internal battery + 6
external battery cabinets
77
69
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 11-5 shows the estimated run times at different loads.
Auto-Learning Battery Run Times
As batteries age, the estimated runtimes 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-of-discharge 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 11-5 will be
restored. This will override any value that is Auto-Learned.
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
40
Chapter 12 Product Warranty Registration
Chapter 12 Product Warranty Registration
To register for warranty protection, visit the Quick Links section of the Liebert Web site at:
Click on Product Warranty Registration and fill in the form.
If you have any questions, contact Emerson Channel Support at:
North America: 800-222-5877
Outside North America: 00-800-1155-4499
Liebert GXT4 UPS 5000VA ~ 10000VA (230V) User Manual
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