Liebert GXT 2U User Manual
UPStation GXT 2U™
POWER PROTECTION
USER MANUAL
700-3000VA
120V
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . 1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
MAJOR COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters . . . 5
Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . 5
Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DC to DC Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GXT 2U (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rack-Mount UPS Conversion and Installation. . . . . . . . . . . . . . . . . . . . 9
External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 12
CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . 13
ON/Alarm Silence/Manual Battery Test Button . . . . . . . . . . . . . . . . . . 13
Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Load/Battery Level Indicators (4 Green, 1 Amber) . . . . . . . . . . . . . . . 14
Fault Indicator LED (Red) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Bypass Indicator LED (Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
UPS ON Indicator LED (Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Battery Indicator LED (Amber). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
AC Input Indicator LED (Green). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Normal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
i
COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Communications Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pin 4 - Remote Shutdown on Battery. . . . . . . . . . . . . . . . . . . . . . . . . . 17
UPS Intelligent Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 19
GXT 2U Configuration Program Abilities . . . . . . . . . . . . . . . . . . . . . . . 19
What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Internal Battery Replacement Procedures: . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fuse Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
BATTERY CABINET SPECIFICATIONS . . . . . . . . . . . . . . . . . . . 30
BATTERY RUN TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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IMPORTANT SAFETY INSTRUCTIONS
WARNING
!
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 System (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),
100-127 VAC, 50 Hz or 60 Hz supply.
ELECTROMAGNETIC COMPATIBILITY—The GXT 2U
plies 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 moisture, flammable liquids, gases and corrosive
substances.
™
Series com-
1
This UPS contains no user serviceable parts except the internal battery
packs and the rear input line fuses. The UPS ON/Standby push buttons
do 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
DC current from the UPS, for example: electric drills, vacuum cleaners,
laser printers, hair dryers or any 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.
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
may be 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, or other metal objects.
• Use tools with insulated handles.
2
•
GLOSSARY OF SYMBOLS
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
ON
Standby
3
INTRODUCTION
Congratulations on your choice of the Liebert UPStation GXT 2U™ Uninterruptible Power System (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 UPStation GXT 2U protects equipment from these disturbances.
The UPStation GXT 2U comes in nominal power ratings of 700, 1000,
1500, 2000 and 3000 VA. Complete model specifications appear at the
end of this manual.
The UPStation GXT 2U 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 UPStation GXT 2U features a light-emitting diode
(LED) display to indicate either load percentage or battery capacity
depending upon the mode of operation. 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 UPStation GXT 2U 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.
4
MAJOR COMPONENTS
Input Output
TVSS &
L
N
G
EMI/RFI
Filters
Battery
Charger
Rectifier
/PFC
Dynamic
Bypass
DC to DC
Converter
Battery
Inverter
L
N
G
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.
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 UPStation GXT 2U.
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.
5
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 UPStation GXT 2U is plugged in, even when
the UPS is not turned on.
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.
BATTERY
The UPStation GXT 2U utilizes valve-regulated, nonspillable, flame retardant, 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.
DYNAMIC BYPASS
The UPStation GXT 2U 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 alarm and illuminated 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 on the utility supply.
6
GXT 2U (REAR VIEW)
DB-9
Communications Port
Intellislot Port
Cooling Fan
External Battery
Connector
Output
Receptacles
Input Fuse/ Circuit
Breaker
AC Input
Support Base
7
INSTALLATION
PREPARATION
1. Visually inspect the UPS for freight damage. Report damage to the
carrier and your local dealer or Liebert representative.
CAUTION
!
The UPS is heavy (see Specifications section). Take
proper precautions when lifting or moving it.
2. Decide where to place the GXT 2U. Install the UPS indoors in a controlled environment, where it cannot be accidentally turned off. Place
it in an area of unrestricted airflow around the unit, away from water,
flammable liquids, gases, corrosives, and conductive contaminants.
Maintain a minimum clearance of 4 inches (100mm) in the front and
rear of the UPS. Maintain an ambient temperature range of 32°F to
104°F (0°C to 40°C).
NOTE
UPS operation in temperatures above 77°F (25°C) reduces
battery life.
3. The GXT 2U 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 Tower UPS Installation or Rack-Mount UPS Conversion
and Installation.
TOWER UPS INSTALLATION
When using the GXT 2U in a tower configuration, use the included support base (shown below, left) to stabilize the UPS.
If any battery cabinets are added, they will include spacers to accommodate the additional cabinets (shown below, right).
Support base Spacers added to support
8
base to accommodate
additional battery cabinets
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