Opening or removing the cover may expose you to lethal voltages within this unit even when
it is apparently not operating and the input wiring is disconnected from the electrical source.
Observe all cautions and warnings in this manual. Failure to do so may result in serious
injury or death. Refer all UPS and battery service to qualified service personnel. Do not
attempt to service this product yourself. Never work alone.
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions. Read all safety, installation and operating
instructions before operating the Uninterruptible Power Supply (UPS). Adhere to all warnings on the
unit and in this manual. Follow all operating and user instructions. Individuals without previous
training can install and operate this equipment.
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 local dealer or Liebert representative.
This UPS is designed for use on a properly grounded (earthed), 208, 220, 230 or 240 VAC, 50Hz or
60Hz supply. The factory default setting is 208VAC, 60Hz. Installation instructions and warning
notices are located in this manual.
This UPS is for use only with a three-wire input: L1, L2, G.
Electromagnetic Compatibility
The GXT2-6000RTL630 Series complies with the limits for a CLASS A DIGITAL DEVICE, PURSUANT TO Part 15 of FCC rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference and (2) 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.
Operate the UPS in an indoor environment only in an ambient temperature range of 32°F to 104°F
(0°C to 40°C). Install it in a clean environment, free from conductive contaminants, moisture, flammable liquids, gases and corrosive substances.
This UPS contains no user serviceable parts except the internal battery pack. The Off/Bypass push
button does not electrically isolate internal parts. Under no circumstances attempt to gain access
internally other than to replace the batteries due to 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 if
the UPS performance alters in use. Refer all faults to your local dealer, Liebert representative or the
Liebert Worldwide Support Group.
Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and
the required precautions. Keep unauthorized personnel away from the batteries. PROPER DISPOSAL OF BATTERIES IS REQUIRED. REFER TO YOUR LOCAL LAWS AND REGULATIONS
FOR BATTERY DISPOSAL REQUIREMENTS.
Never block or insert any object into the ventilation holes or other openings of the UPS.
DO NOT CONNECT equipment that could overload the UPS or demand half-wave rectification from
the UPS, for example: electric drills, vacuum cleaners, laser printers, hair dryers or any other appliance using half-wave rectification.
Storing magnetic media on top of the UPS may result in data loss or corruption.
Turn the UPS off and isolate the UPS before cleaning; use only a soft cloth, never liquid or aerosol
cleaners. Keep the front and rear vents free of dust accumulation that could restrict airflow.
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When replacing batteries, replace with the same Liebert authorized replacement battery kits.
CAUTION
!
Do not dispose of battery or batteries in a fire. The battery may explode.
Do not open or mutilate the battery or batteries. Released electrolyte is harmful to skin and
eyes. It is toxic.
CAUTION
!
A battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed when working on batteries:
• Remove watches, rings and other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves and boots.
• Do not lay tools or metal parts on top of batteries.
• Disconnect charging source prior to connecting or disconnecting battery terminals.
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GLOSSARY OF SYMBOLS
Risk of electrical shock
!
R
i
-
PbH2SO4
Indicates caution followed by important instructions
AC input
AC output
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
ON/Alarm Silence/Battery Test
OFF/Bypass
Indicates the position of a fuse
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1.0INTRODUCTION
Congratulations on your choice of the Liebert GXT2-6000RTL630 Uninterruptible Power Supply
(UPS). It provides conditioned power to microcomputers and other sensitive electronic equipment.
Upon generation, AC power is clean and stable. However, during transmission and distribution it
may be subject to voltage sags, spikes or complete power failure that may interrupt computer operations, cause data loss or even damage equipment. The GXT2-6000RTL630 protects equipment from
these disturbances.
The GXT2-6000RTL630 comes in a nominal power rating of 6000 VA. Complete model specifications
appear at the end of this manual.
The GXT2-6000RTL630 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.
For ease of use, the GXT2-6000RTL630 features a light-emitting diode (LED) display to indicate both
load percentage and battery capacity. It also provides self-diagnostic tests, a combination ON/Alarm
Silence/Manual Battery Test button, a Standby button, user configurable program, and two levels of
alarms when the unit is operating on battery.
The GXT2-6000RTL630 has an interface 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™ software. MultiLink software can also remotely control UPS operation.
Introduction
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2.0SYSTEM DESCRIPTION
InputOutput
System Description
Dynamic
Bypass
L1
L2
GG
TVSS &
EMI/RFI
Filters
Rectifier
DC-to-DC
Converter
Battery
Charger
/PFC
Inverter
Battery
2.1Transient 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.
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 GXT2-6000RTL630.
2.3Inverter
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 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.
2.4Battery 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 GXT2-6000RTL630 is connected to utility power.
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2.5DC-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.
2.6Battery
The GXT2-6000RTL630 utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery design life, operate the UPS in an ambient temperature of 68°F to 77°F (20°C to 25°C). Optional
external battery cabinets are available to extend battery run times.
2.7Dynamic Bypass
The GXT2-6000RTL630 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 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 button once.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances
in the utility supply.
System Description
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3.0MAJOR COMPONENTS
The GXT2-6000RTL630 is composed of three major assemblies to provide easier handling, installation, and versatility.
3.1Main Frame and Electronics
This 5U cabinet is shipped without internal batteries to lighten the UPS for easier installation. The
internal batteries may be installed after the cabinet has been placed in its final floor or rack position.
The Power Distribution box is shipped separately for easier handling of the UPS while being placed in
its final position.
Figure 1GXT2-6000RTL630, front view
Top Tri m
(2 pieces;
tower use
only)
Major Components
Lower Bezel &
Battery Access
Door
Status
Indicators
& Controls
Upper
Bezel
!
UPStation GXT
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Figure 2GXT2-6000RTL630, rear view
Battery
Disconnect
External Battery
Connector
OUTPUT BREAKER
30A/250V~T
UPS Output
Circuit Breaker
DB-9
Communication
Port
BREAKER 30A
OFF
OUTPUT ONLY CB DOES NOT
CONNECT BYPASS POWER TO
MANUAL BYPASS SWITCH.
ON
EXT. BATTERY
240V 25A
AND EXTENDED
STORAGE
ATTACH JUMPER
HERE FOR SHIPPING
SEE MANUAL
FOR CONNECTIONS
Major Components
INTERNAL BATTERY
CONNECTOR INSTALL
BEFORE OPERATING
+
-
ON
OFF
OFF
OFF
BREAKER
20A 240V~/T
COMMUNICATION PORT
REPO
ON
OUTPUT
ON
RELAY CARDUSB/WEB CARD
Fans
REPO Connector
Relay Card Slot
Removable Power
Distribution Box
Maintenance
Bypass Switch
INPPUT
BREAKER
20A 240V~/T
OUTPUT
AVAILABLE
UPS
UPS
MAITANENCE BYPASS
AVAILABLE
UTILITY
Serial Card Slot
(SNMP, OCWEB, USB)
3.2Internal Battery Packs
The UPS has two internal battery packs behind a battery access door on the front of the unit. Each
pack is fitted with a connector to link to the UPS. The batteries are shipped in packaging separate
from the UPS. These must be installed before the UPS may be put into service. For installation
instructions, see 5.2 - Install the Internal Batteries.
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Figure 3Internal battery pack with connector
3.3Removable Power Distribution Box
The UPS incorporates a power distribution box that must be installed before the unit is placed into
service. The power distribution box provides the benefits of plug and receptacle convenience with a
manual bypass switch. For installation instructions, see 5.4 - Connect Input/Output Power.
Optional versions may be available to replace the standard box for custom installations.
Major Components
Figure 4Optional power distribution—PD-L630
UPS
MAITANENCE BYPASS
AVAILABLE
AVAILABLE
UPS
UTILITY
ON
ON
OUTPUT
BREAKER
20A 240V~/T
OFF
BREAKER 30A
OFF
OFF
ON
OUTPUT ONLY CB DOES NOT
CONNECT BYPASS POWER TO
MANUAL BYPASS SWITCH.
OUTPUT
BREAKER
20A 240V~/T
INPPUT
Manual
Bypass
Switch
CONNECTOR PROTECTIVE COVER DO NOT REMOVE SCREWS
PRIOR TO INSTALLATION OF BOX ON UPS
-LOOSEN THREE SCREWS 1 TURN
- SLIDE COVER TO EXPOSE CONNECTOR
-TIGHTEN SCREWS GENTLY
UPON REMOVAL OF BOX FROM UPS
-LOOSEN THREE SCREWS 1 TURN
Wired
connections
to UPS
-SLIDE COVER TO REACH END SCREW AND COVER COMMUNICATION
-TIGHTEN SCREWS GENTLY
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4.0WHAT’S INCLUDED
The GXT2-6000RTL630 is shipped with the following items:
• GXT2-6000RTL630 user manual
• Vertical display overlay
• Top bezels - 2
• MultiLink software CD
• MultiLink serial cable, 10 ft (3m)
• Rack mount handles
• Battery retaining brackets and screws - 2 each
• Support base - 2
• Mounting hardware
• Configuration program CD
• DB-9 port cover
What’s Included
Top bezels
(tower use)
Vertical
display
overlay
Rack mount
handles
Battery retaining brackets and screws
MultiLink
software CD
Mounting hardware
Support Base
with Spacers
MultiLink
serial cable
10 ft (3m)
www.liebert.com
GXT2U ™ Configuration Pr ogram
For use with Liebert GXT2U model
UPS systems.
Version 1.6
For Windows XP, 2000 NT, 98
Configuration
disk
DB-9 port cover
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