Liebert Power Supply GXTTM User Manual

UPStation GXT™  
6 & 10 kVA  
230V  
USER MANUAL  
English  
 
10. Storing magnetic media on top of the UPS may result in data loss or  
corruption.  
11.Turn the UPS off and isolate the UPS before cleaning. Use only a soft cloth,  
never liquid or aerosol cleaners.  
GLOSSARY OF SYMBOLS  
Indicates AC Input  
Indicates AC Output  
Indicates Caution: Note the accompanying instruction  
Indicates the position of a fuse  
Requests the user to consult the manual for additional  
information  
Indicates that the unit contains a valve regulated lead acid battery  
1
 
INTRODUCTION AND SYSTEM DESCRIPTION  
Congratulations on your choice of the UPStation GXT™ 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, which may interrupt computer operations, cause data loss, or even  
damage equipment. The UPStation GXT protects equipment from these  
disturbances.  
The UPStation GXT is a compact, “on-line” UPS. An “on-line” UPS continuously  
conditions and regulates its output voltage, whether the mains power is present  
or not. It supplies connected equipment with clean sinewave power. Sensitive  
electronic equipment operates best from sinewave power. The GXT  
6000/10000T-230X models have an additional output isolation transformer.  
For ease of use, the UPStation GXT contains a light emitting diode (LED) display  
to indicate either “load percentage” or “battery capacity” depending upon the  
mode of operation. It also provides self-diagnostics, a combination On/Alarm  
Silence/Manual Battery Test button, a combination Off/Bypass button, and two  
levels of alarms when the unit is operating on battery.  
The UPStation GXT has an interface port for communications between the UPS  
and a LAN server or other computer system. This port provides detailed  
operating information including voltages, currents, and alarm status to the host  
system when used in conjunction with the SiteNet® 2 software. SiteNet® 2  
software can also remotely control UPS operation.  
MAJOR COMPONENTS  
Output Transformer  
GXT 230X models only  
Rectifier/PFC  
Inverter  
OUTPUT  
INPUT  
EMI/RFI  
Filter  
EMI/RFI  
Filter  
Static Bypass  
Battery  
Charger  
Battery  
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 mains line and keep the sensitive  
equipment protected.  
2
 
RECTIFIER/POWER FACTOR CORRECTION (PFC) CIRCUIT  
In normal operation, the rectifier/power factor correction (PFC) circuit converts  
mains AC power to regulated DC power for use by the inverter, while ensuring  
that the wave shape of the input current used by the UPS is near ideal.  
Extracting this sinewave input current achieves two objectives: the mains power  
is used as efficiently as possible by the UPS, and the amount of distortion  
reflected on the mains is reduced. This results in cleaner power being available  
to other devices in the building not being protected by the UPStation GXT.  
INVERTER  
In normal operation, the inverter utilises the DC output of the power factor  
correction circuit and “inverts” it into precise, regulated sinewave AC power.  
Upon a mains power failure, the inverter receives its required energy from the  
battery through the rectifier / PFC. In both modes of the operation, the UPS  
inverter is on-line and continuously generating clean, precise, regulated AC  
output power.  
BATTERY CHARGER  
The battery charger utilises energy from the Rectifier / PFC and precisely  
regulates it to continuously “float” charge the battery system. The battery system  
charges whenever the UPStation GXT is connected to mains power.  
BATTERY  
The UPStation GXT employs valve regulated, non-spillable, lead acid batteries.  
At typical room temperatures and with the UPS float charging, the battery system  
will last many years. Optional external battery cabinets are available to provide  
extended run times.  
STATIC BYPASS  
The UPStation GXT provides an alternate path for mains power to the connected  
load, in the unlikely event of a UPS malfunction. Should the UPS have an  
overload, over temperature, or UPS failure condition, the UPS automatically  
transfers the connected load to BYPASS providing the bypass voltage is within  
specification. BYPASS operation is indicated by an alarm and an illuminated  
BYPASS LED (other LED’s may be illuminated to indicate the diagnosed  
problem). To manually transfer the connected load from the inverter to BYPASS  
power, press the output OFF button once.  
NOTE: The BYPASS power path does NOT protect the connected equipment  
from disturbances on the mains supply and its range of operation is limited to +/-  
15% of the nominal input supply voltage.  
AUTO RE-START  
Upon restoration of the mains AC power after a mains power outage and  
complete battery discharge, the UPS will automatically restart and supply power  
to the critical load and the battery charger automatically recharges the battery.  
3
 
CONTROLS AND INDICATORS  
Fault Indicator  
UPS ON /  
Alarm Silence /  
Manual Battery Test  
BYPASS  
UPS ON  
BATTERY  
AC INPUT  
Output OFF /  
Bypass  
Load / Battery Level  
Indicators  
Fault Indicator (Red)  
The Fault indicator is illuminated if the UPS has detected a problem. Also, one or  
more of the load/battery level indicators may be illuminated (refer to  
Troubleshooting Guide).  
BYPASS Indicator (Amber)  
The BYPASS indicator is illuminated when the UPS is operating from BYPASS  
power. An alarm will sound indicating the UPS detected a problem, or manually  
set to BYPASS.  
UPS ON Indicator (Green)  
The UPS On indicator is illuminated when the UPS inverter is operating and  
supplying power to your connected loads.  
Battery Indicator (Amber)  
The Battery indicator is illuminated when the UPS is operating from the battery  
system.  
AC Input Indicator (Green)  
The AC Input indicator is illuminated when mains power is available and within  
the input specification.  
Load/Battery Level Indicators (4 Green, 1 Amber)  
The Load/Battery Level indicators have dual functions. During NORMAL mode  
operation LED indicators display the approximate electrical load placed upon the  
UPS; and during battery mode operation LED indicators display approximate  
battery capacity.  
4
 
The UPStation GXT is equipped with automatic and remote battery test features.  
The automatic test occurs every 14 days if a manual battery test has not been  
performed or if mains has not been interrupted (14 day timer resets if unit goes to  
battery). Should the battery fail this test, the fault indicator along with the A and  
C
diagnostic LEDs will illuminate and an alarm will sound (refer to  
Troubleshooting Guide). The remote test feature functions with either SiteNet® 2  
or SiteNet® SNMP Manager software and can remotely initiate the battery test.  
UPS ON/Alarm Silence/Manual Battery Test Button  
This button controls output power to connected load(s) and has three functions:  
UPS  
ON,  
Alarm  
Silence,  
and  
Manual  
Battery  
Test.  
To start the UPS, while in the BYPASS mode, press this button until the  
command is acknowledged by a beep from the audible alarm. This will provide  
conditioned and protected power into the output terminal block.  
To silence alarms, press this button for at least one half second while alarm  
conditions are present. After the alarm is silenced, the UPStation GXT will  
reactivate the alarm system to alert of additional problems.  
NOTE: The low battery and BYPASS reminder alarms cannot be silenced.  
BATTERY TESTING- To initiate a manual battery test, press this button for at  
least one half second while operating in normal UPS mode power and no alarm  
conditions are present. If the bottom two LED's do not illuminate during a Battery  
Test, allow the UPS to recharge the batteries for 24 hours. After 24 hours, retest  
the batteries. If the batteries have been re-tested and the bottom two LED's still  
do not illuminate, contact your dealer or Global Services for a battery  
replacement.  
OUTPUT OFF/BYPASS Button  
This button controls output power to connected load(s) and has dual functions:  
OUTPUT OFF and Bypass.  
CAUTION: Pressing this button once during normal operation will cause the load  
to be transferred to BYPASS power. Pressing this button a second time within 4  
seconds will result in loss of power to the output and connected loads. Perform  
all necessary shutdown procedures on connected loads before pressing this  
button twice.  
5
 
TM  
DB-9  
Communications  
Port  
Intellislot  
Communications  
Port  
GXT 6 & 10 kVA  
Component Diagram  
230 & 230X Models Shown  
Output Voltage  
Selector Switches  
TM  
Intellislot  
DB-9  
Communications  
Port  
Communications  
Port  
Breakers  
Output Voltage  
Selector Switches  
Battery  
Breaker  
Input  
Output  
Input  
Breaker  
Output  
Breaker  
Battery  
Breaker  
Hardwire  
Terminal Blocks  
Hardwire  
Terminal Blocks  
Adjustable levels  
6
 
OPERATING MODES  
NORMAL MODE OPERATION- UPS mode  
During normal operation, mains power provides energy to the UPS. The filters,  
the power factor correction circuit and  
the inverter process this power to  
provide computer grade power to  
connected loads. The UPS maintains  
the batteries in a fully charged state.  
The four green LED’s indicate an  
approximate level of load in 25%  
increments.  
If the UPS becomes  
loaded beyond full rating, the fifth  
(amber) LED indicator will illuminate  
and sound an alarm.  
Normal Mode Operation at  
51-75% loading  
The display template indicates the  
percentage of load on the UPS output.  
BATTERY MODE OPERATION  
Battery mode occurs in event of an  
extreme input voltage condition or  
complete mains failure. The battery  
system supplies power through the  
DC-DC converter to the inverter to  
generate power for the connected  
load.  
During battery mode an alarm sounds  
every 10 seconds. This will change to  
2 beeps every 5 seconds when battery  
runs low (approximately 2 minutes  
remaining). The AC Input LED will  
extinguish, and the Battery LED will  
illuminate to warn that a mains problem  
Battery Mode Operation at  
81-100% battery capacity  
has occurred. Each load/battery level indicator represents a 20% capacity level.  
As capacity decreases, fewer indicators remain illuminated. Refer to the  
Troubleshooting Guide.  
To increase this time, turn off non-essential pieces of equipment (such as idle  
computers and monitors) or add an optional external battery cabinet.  
CAUTION: Turning off the UPS while in battery mode will result in loss of output  
power.  
Once mains power is restored, the UPS resumes normal operation. At this time,  
the Battery Charger begins recharging the battery.  
7
 
BYPASS MODE OPERATION  
During BYPASS operation, mains  
power provides energy to your load  
and maintains the batteries in a fully  
charged state.  
The four green LED’s indicate an  
approximate level of load in 25%  
increments. If the BYPASS becomes  
loaded beyond full rating, the fifth  
(amber) LED indicator will illuminate  
and sound an alarm.  
Bypass Mode Operation at  
51-75% loading  
The display template indicates the  
percentage of load on the output.  
CAUTION: The BYPASS power path does not protect the connected equipment  
from disturbances on the mains supply.  
8
 
STARTING THE UPS  
1. Ensure the load equipment is turned off, and all loads are properly  
connected to the UPS output.  
2. Check that the mains wall isolator is ON. Turn On (Close) the Battery circuit  
breaker, the Input and Output circuit breakers in that order.  
The UPS will now automatically start up and default to BYPASS mode once  
the UPS is connected to an active AC mains supply and the Battery and Input  
circuit breakers are closed. At the end of the startup sequence the BYPASS  
LED should be lit.  
3. TO PROTECT YOUR LOAD YOU MUST NOW PRESS THE UPS  
ON/ALARM /BATTERY TEST BUTTON TO GO TO UPS MODE  
4. Press the UPS ON/ALARM /BATTERY TEST button for at least one half  
second until you hear the audible alarm give a “Beep” to signal acceptance of  
the command. After a delay of about 10 seconds, the BYPASS LED will  
extinguish and the UPS ON LED should light. The UPS will then initiate a  
self-test and a battery test. When these tests are complete, the UPS is ready  
for NORMAL UPS operation. Connected load equipment may now be started.  
POWERING DOWN THE UPS  
1. Check to ensure that all connected load equipment is shutdown. Press the  
OUTPUT OFF/ BYPASS button until a “Beep” is heard. Release the button  
and then immediately press for at least one second. The UPS ON LED will  
extinguish and the BYPASS LED will light for a short period then extinguish.  
When the AC input LED and the bottom LED of the BATTERY/LOAD array  
are lit and the UPS ON and BYPASS LED’s extinguish, the output is powered  
down.  
2. If necessary to isolate the UPS, set the input, output and battery breakers on  
the rear of the UPS to OFF position. Finally for complete isolation turn OFF  
the wall mounted mains isolator.  
9
 
SWITCHING FROM OUTPUT OFF TO UPS or UPS to BYPASS to OFF  
1. If the UPS is in OUTPUT OFF condition, with all rear mounted breakers in the  
ON position, and the AC input LED and the bottom LED of the  
BATTERY/LOAD array lit. To go to UPS mode, press the UPS ON/ALARM  
/BATTERY TEST button until a “Beep” is heard. The UPS will then go  
through its start-up routine ending up after approximately 10 seconds with the  
UPS LED lit.  
2. If the UPS is operating in UPS mode and there is a need to go to BYPASS  
mode, press the OUTPUT OFF/BYPASS button until a beep is heard. The  
UPS ON LED will extinguish and the BYPASS LED will be lit.  
WARNING: In BYPASS mode your connected load is NOT PROTECTED  
from mains disturbances.  
If you are in BYPASS mode and want to set the OUTPUT to OFF. Press the  
OUTPUT OFF/ BYPASS button for a least 1 second, twice, within a 4 second  
time interval. There is no audible “Beep” on this action.  
OPERATION IN BATTERY MODE  
If in the absence of the mains power it is essential for the UPS output to be made  
available for a critical operation, then the following procedure should be followed.  
1. To start the UPS in BATTERY mode, press the UPS ON/ALARM /BATTERY  
TEST button for at least one half second until you hear the audible alarm  
gives a double “Beep” to signal acceptance of the command. After a short  
delay, the BATTERY LED should light. The UPS will then initiate a self-test  
and approximately 10 seconds after these tests are completed, the UPS ON  
LED will light. Connected load equipment may now be started.  
PLEASE NOTE- duration of output power will be limited to remaining battery  
capacity shown by the battery LED’s.  
2. To power down the UPS. Press the OUTPUT OFF/ BYPASS button until the  
audible alarm “Beeps”. The UPS will now shutdown and all LED’s extinguish.  
10  
 
TROUBLESHOOTING  
The information below indicates various symptoms a user may encounter in the  
event the UPStation GXT develops a problem. Use this information to determine  
whether external factors cause the problem and how to remedy the situation.  
1. The fault indicator will illuminate indicating the UPS detected a problem.  
2. An alarm will sound, alerting that the UPS requires attention.  
3. One or more additional load/battery level LED indicators will be illuminated to  
provide a diagnostic aid to the operator, as described below:  
All.  
A.  
On bypass due to output overload (beep every half second)  
On bypass due to over temperature condition  
(beep every 4 seconds)  
B.  
D.  
On bypass due to DC bus over voltage (beep every 4 seconds)  
On bypass due to PFC failure (beep every 4 seconds)  
On bypass due to inverter failure (beep every 4 seconds)  
UPS failed battery test (long beep every minute)  
E.  
A&C.  
C&E.  
UPS shutdown due to command from communication port  
(SNMP); no beep  
The fault indicators will be illuminated indefinitely while battery charger is  
operational, or for a maximum of 5 minutes while battery charger is not  
operational. If a problem persists consult your dealer, or contact Technical  
Support. World Wide Technical Support numbers are located at the end of this  
manual.  
11  
 
AUDIBLE ALARM CONDITIONS  
CONDITION  
ALARM  
Battery mode (utility failure)  
Low battery  
One short beep every ten seconds  
Two short beeps every five seconds  
One short beep every half second  
One second beep every four seconds  
One second beep every four seconds  
One second beep every four seconds  
One second beep every four seconds  
Two second beep every minute  
Output overload (bypass)  
Over temperature (bypass)  
DC Bus over voltage (bypass)  
PFC failure (bypass)  
Inverter failure  
Battery Test failure  
TROUBLESHOOTING GUIDE  
PROBLEM  
CAUSE  
SOLUTION  
UPS fails to start when  
on button is pressed  
UPS is short circuited  
or overloaded  
Ensure UPS is off. Disconnect  
all loads and ensure nothing is  
lodged in output terminal block.  
Ensure loads are not defective  
or shorted internally.  
Internal fuse is blown,  
indicating internal fault  
Do not attempt to open or  
service the UPS. Contact your  
dealer or technical support.  
Close breaker or remove  
overload.  
Breaker not closed or  
has tripped.  
Battery indicator is  
illuminated  
UPS input not  
connected  
UPS is operating from battery  
mode, make certain UPS is  
securely connected to source.  
UPS is operating from battery  
mode. Save data and close  
applications. Replace UPS  
input fuse or reset input  
UPS input protection  
has opened  
breaker, then restart UPS.  
UPS is operating from battery  
mode. Save data and close  
applications. Ensure mains  
supply voltage is within  
Mains voltage out of  
UPS input range.  
acceptable limits for UPS.  
Apply input voltage for at least  
24 hrs to recharge batteries.  
Check load level display and  
reduce load level  
UPS has reduced  
battery time  
Batteries not fully  
charged  
UPS is overloaded  
Batteries may not be  
able to hold a full  
charge due to age  
Replace batteries. Contact  
your dealer or technical  
support.  
12  
 
TROUBLESHOOTING GUIDE  
PROBLEM  
Fault and Bypass  
indicators and all load  
level LED's are  
CAUSE  
UPS overloaded or load  
equipment is faulty  
SOLUTION  
Check load level display and  
remove non-essential loads.  
Recalculate load VA and  
reduce number of loads  
connected to UPS. Check load  
equipment for faults.  
illuminated  
Fault and Bypass  
indicators and  
diagnostic LED A are  
illuminated  
UPS internal fan has a  
problem or UPS  
shutdown due to  
temperature condition.  
Load is on bypass  
power.  
Press Alarm silence button.  
Once the temperature is  
reduced, the UPS will restart  
and transfer the connected  
equipment to inverter power  
automatically.  
Fault and Bypass  
indicators and  
diagnostic LED B are  
illuminated  
UPS internal DC bus  
over voltage  
UPS requires service. Contact  
your dealer or technical  
support.  
Fault and Bypass  
indicators and  
diagnostic LED D are  
illuminated  
UPS PFC fault.  
UPS requires service. Contact  
your dealer or technical  
support.  
Fault and Bypass  
indicators and  
diagnostic LED E are  
illuminated  
UPS inverter fault.  
UPS requires service. Contact  
your dealer or technical  
support.  
Fault indicators and  
diagnostic LED A & C  
are illuminated  
UPS failed the battery  
test.  
Replace batteries. Contact  
your dealer or technical  
support.  
Fault indicators and  
diagnostic LED C & E  
are illuminated  
UPS shutdown due to a  
command from the  
communications port(s)  
Your UPS has received a  
signal or command from the  
attached computer. If this was  
inadvertent, ensure the  
communication cable used is  
correct for your system. For  
assistance, contact your dealer  
or technical support.  
13  
 
UPS MONITORING  
The UPStation GXT UPS has the capability of being monitored with stand alone  
computers, network workstations, network servers, or UNIX hosts via the DB-9  
socket located on the rear of the UPS.  
This capability is used in applications requiring the UPS to provide status and  
power monitoring information to the computer system. For example, during a  
mains power failure, the information can be used by the computer’s operating  
system or application program to automatically save information in buffers, to  
close files, and shut down operations prior to battery capacity depletion.  
Monitoring of the UPS via a computer is as easy as downloading SiteNet®  
be built by following instructions provided on our web page. You may also  
purchase a Liebert SiteNet® 1 shutdown kit (sold separately). Consult your local  
Liebert representative to determine the correct software kit for your application.  
The kit includes shutdown software and a special purpose cable.  
UPS INTELLIGENT COMMUNICATIONS  
The UPStation GXT UPS has the capability to communicate intelligently with  
stand alone computers, network workstations, network servers, or UNIX hosts via  
the DB-9 socket located at the rear of the UPS. By purchasing the optional  
Liebert SiteNet®  
2
software package (sold separately), intelligent  
communications allows the following capabilities:  
-
-
-
-
-
Quantitative monitoring of mains and UPS power  
Quantitative monitoring of internal UPS parameters  
Periodic tests of battery quality and replacement notification  
Timed and delayed shutdown of the UPS  
Logging of power disturbances and anomalies  
Consult your local Liebert sales representative for more information about  
SiteNet® 2 software.  
UPS INTELLISLOT™ COMMUNICATIONS  
The UPStation GXT UPS contains an Intellislot™ communications port for the  
optional internal MultiPort 4 card, AS400 card, or Ethernet SNMP card. Optional  
SiteNet® SNMP Manager software is available to allow communication through  
several network management systems to be used in conjunction with the  
Intellislot SNMP card. Contact your local Liebert representative, dealer, or  
reseller.  
14  
 
MAINTENANCE  
The UPStation GXT UPS requires very little maintenance. The batteries are  
valve regulated, non-spillable, lead acid, and should be kept charged to obtain  
their designed life. The UPS continuously charges the batteries when connected  
to the mains supply.  
When storing the UPS for any length of time, it is recommended to apply power  
to the UPS for at least 24 hours every four to six months to ensure full recharge  
of the batteries. In no case should the unit be stored in excess of nine months  
without recharge. Periodically, examine the vents on the front and rear of the  
cabinet, and remove any obstructions from the surface of the vents.  
15  
 
INSTALLATION INSTRUCTIONS  
These instructions are for use by competent personnel only.  
INSTALLATION CONSIDERATIONS  
Detailed instructions to help you install the UPS are provided in the following  
pages; however, you should give some consideration to the proposed  
environment in which the UPS is to be installed, and carry out some preparatory  
work.  
INSPECTION  
Before you install the UPS, give it a thorough visual examination to ensure it has  
not been subjected to shipping damage. If it is not in perfect condition, you  
should advise both the shipper and the supplier immediately. DO NOT  
ATTTEMPT TO INSTALL A DAMAGED UPS.  
Check the UPS rating plate that the UPS is suitable for operation on your mains  
voltage and load voltage requirements.  
Before disposing of the UPS packaging, check that you have removed to a safe  
place the user manual and any other items shipped with the unit to be used in its  
installation.  
CAUTION:  
GXT6000 UPS weighs up to 139kg - GXT10000 UPS weighs up to 244kg.  
Use adequate handling aids when moving or installing the UPS.  
The UPS is fitted with castor wheels for easy movement. Take care when the  
UPS is removed from its packing and being wheeled across an uneven floor  
without the stabilisers fitted, that it does not tip over. See notes on  
adjustment of levelling feet and stablisers.  
LOCATION  
Locate the UPStation GXT indoors in a controlled environment, where it cannot  
be accidentally disconnected. Locate it in an area with unrestricted airflow, away  
from water, flammable liquids, gases, corrosives, or conductive contaminants.  
Give consideration to the airflow requirements- (see below)- and allow at least  
150mm (6inches) free space around the UPS, with a minimum of 300mm  
(12inches) at the back to enable easy operator access to the rear panel mounted  
input/output/battery circuit breakers.  
Air vents are located at the front and the rear of the UPS. Do not position the  
UPS in an enclosed space where airflow is restricted.  
Optional battery cabinets are designed to be placed on either side of the UPS.  
Electrical maintenance/servicing requires access to both sides of the UPS,  
provide the necessary free space or use a flexible wiring system to allow the  
UPS to be pulled forward.  
Maintain an ambient temperature range of 0 - +40° centigrade (32-104° F)  
NOTE- UPS operation in temperatures above 25°C (77°F) reduces battery life.  
16  
 
OUTPUT  
RATING  
INPUT CURRENT  
Amps max  
AIRFLOW  
DISSIPATION  
m3h  
221  
459  
Watts K Btu/hr  
VA  
Watts  
4200  
7000  
Including mains  
Cfm  
130  
270  
variation/battery charge  
504  
840  
1.7  
2.8  
6000  
GXT6000 = 33 amps  
GXT10000= 54 amps  
10000  
ELECTRICAL INSTALLATION CONSIDERATIONS  
This UPS must be installed by competent electrical personnel and wired in  
accordance with local/national electrical codes.  
The following information is provided for your guidance.  
WARNING  
HIGH EARTH LEAKAGE CURRENT- EARTH CONNECTION IS  
ESSENTIAL BEFORE CONNECTING THE MAINS SUPPLY. Earth in  
accordance with local electrical codes.  
CAUTION  
This UPS is fitted with EMC suppression filters. Earth leakage  
exceeds 35mA. Transient and steady state earth leakage currents,  
which may occur when starting the UPS, should be taken into  
account when selecting instantaneous RCCB or RCCD devices. Note  
also that the earth leakage currents of the load will be carried by this  
RCCB or RCCD.  
WARNING  
This UPS does not incorporate automatic backfeed protection.  
A warning label must be fitted to all primary power isolators stating:  
ISOLATE UNINTERRUPTIBLE POWER SYSTEM BEFORE WORKING ON  
THIS CIRCUIT.  
On start-up, the UPS will take a half cycle inrush current of up to 3 times the  
rated current. This must be taken into account when selecting the overload  
protection device at the input mains supply distribution point. To avoid random  
tripping on start-up, we recommend that the input mains supply be protected with  
an MCB capable of withstanding this initial inrush. An MCB specified as being  
“TYPE 4” (British standard) or “CURVE D” (IEC standard) is suitable for this  
purpose.  
The mains input supply cable must be connected to the UPS via a wall mounted  
double pole circuit breaker, rated to carry the current in table 1 and be capable of  
breaking the maximum prospective short circuit current of this branch circuit. The  
breaker is to be mounted within two metres of the UPS and be readily accessible  
to the operator.  
17  
 
ELECTRICAL CONNECTIONS  
The UPS is supplied with an input/output/ battery terminal block assembly on the  
rear of the UPS within a cable box. (see outline drawing) The cable box can be  
removed to enable knockouts to be removed or new holes drilled, to secure the  
cables.  
The cable sizes and distribution methods used during installation are subject to  
local/ national electrical codes of practice , and therefore are not detailed here.  
However, table 1 gives details of the input current and the UPS rating plate gives  
details of the output current according to output voltage selected.  
The terminals will accept wire sizes up to the values below:  
GXT6000 = 10 mm2  
GXT10000 = 16mm2  
18  
 
Connecting the UPS Power cables  
Power cables connect to screw terminals on a terminal block that is located  
behind the rear mounted cable box (see figure). The cables enter the UPS  
through a Gland Plate attached to the rear of the UPS. The Gland Plate must first  
be removed and drilled to suit the glands or bushes for the cables used. Ensure  
that the glands are sized so that they hold the cables securely.  
UPS Power Section  
To External Battery  
(Optional)  
To Mains  
To Load  
6kVA  
10kVA  
GXT 6 / 10 kVA Connection Diagram  
Connection of optional remote battery cabinets.  
Full installation instructions are provided with these cabinets. Safety/EMC  
certification limits the use of these terminals to Liebert supplied options.  
Output connections GXT 6000/10000-X models only  
Models whose part number ends with an “X” are fitted with an isolating output  
transformer. The output of this transformer is referenced to earth at the neutral  
terminal, remove this earth-neutral link when required by local electrical codes.  
19  
 
Stabilisers/Levelling Feet  
When the UPS is located in its final position before or after wiring, it is necessary  
to fit stabiliser brackets and, if necessary, adjust the levelling feet. If the UPS is  
wired using a rigid wiring system, then movement of the UPS must be prevented  
by winding down the 4 levelling feet under the UPS as shown below. For UPS  
wired with flexible cables, this is optional. Note- Access to the levelling feet is  
obstructed by the stabiliser brackets, on the GXT10000 models.  
Adjust the levelling feet as necessary using  
a
12mm open ended  
spanner/wrench. DO NOT LOOSEN THE LARGER NUT ABOVE, AS THIS  
FIXES THE LEVELLING FEET TO THE CHASSIS.  
Attach the stabilising brackets as follows.  
GXT6000 models:  
1. Using a Phillips-head screwdriver, remove the screws(4) from each of the  
bottom corners of the side panels.  
2. Attach the stabilising brackets to each corner using screws just removed.  
GXT10000 models:  
1. Using a Phillips-head screwdriver, remove the three inner-most screws at  
the base of both side panels.  
2. Attach the stabilisers fixing with the screws just removed.  
6 kVA  
10 kVA  
12 mm  
Levelling Feet Adjustment Diagram  
20  
 
COMMUNICATIONS INTERFACE PORT  
The UPStation GXT UPS contains a standard DB-9 socket located on the rear of  
the UPS unit. Several signals are provided on this port and are assigned as  
follows:  
PIN  
1
ASSIGNMENT DESCRIPTION  
Low Battery (open collector)  
2
UPS TxD (typical RS-232 levels)  
UPS RxD (typical RS-232 levels)  
Remote Shutdown (5-12V); battery operation  
Common  
3
4
5
6
Remote Shutdown (short to pin 5) UPS mode (all modes) of operation  
Low Battery (open emitter)  
7
8
Mains Fail (open emitter)  
9
Mains Fail (open collector)  
PIN ASSIGNMENT  
COLLECTOR TO EMITTER*  
*Maximum voltage and current on pins 1,7,8,9 is 80V DC; 10.0 mA.  
TO MAINTAIN SAFETY (SELV) BARRIERS AND FOR  
CAUTION:  
ELECTROMAGNETIC COMPATABILITY, SIGNAL CABLES SHOULD BE  
SEGREGATED AND RUN SEPARATE FROM ALL OTHER POWER CABLES,  
BY 25mm WHERE APPLICABLE.  
UPS Remote shutdown option.  
Shorting pins 5 and 6 on the DB9 connector will shutdown the UPS output in any  
mode of operation. Removing the short circuit, the UPS will automatically auto-  
restart.  
Where there is a requirement for a remote shutdown of the UPS to meet fire or  
other local safety codes, it is necessary to interrupt, at the same time with the  
same pushbutton, all mains input supplies to the UPS. The pushbutton that  
provides the UPS remote shutdown must be of the stay-down type ( Latching) to  
keep a short circuit on pins 5 and 6 until mechanically unlatched by hand.  
Note ; The wiring for remote stop contacts pins 5 and 6 of the DB9 connector are  
defined as SELV . When connecting to a stop button interfacing with other mains  
emergency stop circuits, keep wiring segregated from other power wiring.  
21  
 
FERRITE BEAD INSTALLATION  
When using either of the options below, to reduce the risk of radio interference, fit  
the ferrite assemblies supplied with the UPS as follows:  
Serial Communications  
Attach the smaller enclosed ferrite bead clamp to the communication cable as  
shown in the drawing using the following directions:  
·
·
Open the ferrite bead.  
Place the communication cable  
inside the ferrite bead groove.  
Position the ferrite beads as  
close as possible to the end of  
the cable that connects to the  
DB9 connector of the UPS.  
Close the ferrite bead so that the  
ferrite bead’s case snaps closed  
with the cable routed inside the  
ferrite bead’s case.  
·
·
SNMP Installation ( When fitted)  
Attach the larger enclosed ferrite  
bead clamp to the network cable as  
shown in the drawing using the  
following directions:  
·
·
·
·
Open the ferrite bead.  
Place the network cable inside the ferrite bead groove.  
Wrap the cable once around the bead.  
Position the ferrite cable as close as possible to the end of the cable that  
connects to the UPS.  
Close the ferrite bead so that the ferrite bead’s case snaps closed with the cable  
routed inside the ferrite bead’s case.  
22  
 
COMMISSIONING THE UPS  
Output Voltage Selector Switches  
The Output Voltage Selector Switches, located on the rear of the UPS, are  
designed to allow selecting or changing the desired output voltage to match the  
mains. The settings to choose from are 208, 220, 230, and 240 VAC output.  
230 & 230X Units  
208 V  
220 V  
230 V  
240 V  
áá - both switches up  
áâ - first switch up, second down  
ââ - both switches down (Factory Default)  
âá - first switch down, second up  
NOTE: NEVER change the switch settings while UPS is on and powering  
connected loads.  
NOTE: Setting output voltage to 208 VAC will cause UPS unit to be derated to  
90% of the VA and Watt rating listed in specification section.  
1. Adjust the output voltage switch settings to the desired value.  
2. Follow the instructions for Powering up the UPS referenced earlier in this  
manual. Sequence through the operating modes, using the front panel  
pushbuttons, in accordance with operating instructions to check functionality  
of the UPS.  
3. Set the UPS to UPS mode. Check on the output terminals of the UPS, for the  
correct output voltage for the voltage rating of the intended loads.  
4. Check operation of the remote shutdown circuit (If fitted).  
5. In UPS mode, power up customers load and check that it is within the UPS  
rating by observing the front panel LED’s  
6. In UPS mode, press the UPS ON/ALARM /BATTERY TEST pushbutton to  
carry out battery test and ensure the load can be supported. Note- Full  
battery capacity will not be available until a battery recharge cycle has been  
completed.  
The UPS is now ready for service In case of problems refer to the fault finding  
section or call your local distributor for advice.  
23  
 
Battery Run Times  
Load %  
6kVA + (1)  
GXT240VBATT GXT240VBATT  
6kVA + (2)  
6kVA  
10%  
20%  
25%  
30%  
40%  
50%  
60%  
70%  
75%  
80%  
90%  
100%  
69  
58  
52  
48  
33  
23  
17  
14  
12  
11  
9
250  
197  
174  
155  
117  
88  
73  
60  
54  
50  
360  
301  
278  
248  
190  
140  
110  
94  
85  
77  
68  
59  
42  
37  
8
Load %  
10kVA + (1)  
GXT240VLRT  
10kVA + (2)  
GXT240VLRT  
10kVA  
10%  
20%  
25%  
30%  
40%  
50%  
60%  
70%  
75%  
80%  
90%  
100%  
71  
60  
55  
49  
39  
29  
23  
20  
18  
17  
14  
12  
480  
390  
345  
305  
230  
164  
129  
105  
93  
900  
730  
655  
585  
450  
335  
265  
225  
205  
190  
155  
125  
85  
70  
60  
Note: All run times are in minutes, assume fully charged batteries, and  
are typical at 25OC (77OF) with resistive loads.  
24  
 
SPECIFICATIONS  
GXT6000T-230  
6000 / 4200  
MODEL NUMBER  
MODEL RATING VA/W (max)  
DIMENSIONS: mm (in)  
Unit  
GXT10000T-230  
10000 / 7000  
260 x 555 x 803  
(10.5 x 22.0 x 31.5)  
400 x 850 x 1065  
(16.0 x 33.5 x 42.0)  
340 x 650 x 960  
W x D x H  
(13.5 x 25.5 x 38.0)  
510 x 840 x 1235  
Shipping  
(20.0 x 33.0 x 48.5)  
W x D x H  
WEIGHT: kg (lbs)  
Unit  
99 (218)  
187 (412)  
227 (500)  
Shipping  
130 (288)  
Input/Output Connections  
INPUT AC PARAMETERS  
Voltage Range (typical)  
100% - 90% Loading  
90% - 70% Loading  
70% - 30% Loading  
Hardwire terminal block  
230 VAC nominal; variable based upon output load  
186 VAC to 280 VAC; ±5.0 VAC  
159 VAC to 280 VAC; ±5.0 VAC  
139 VAC to 280 VAC; ±5.0 VAC  
30% - 0% Loading  
Frequency  
119 VAC to 280 VAC; ±5.0 VAC  
46.6 – 52.4 Hz or 57.1 - 62.9 Hz; auto sensing  
OUTPUT AC PARAMETERS  
Voltage  
208/220/230/240 VAC (switch selectable); ±3%  
50 Hz or 60 Hz; auto sensing  
Sinewave  
Frequency  
Waveform  
Main Mode Overload  
200% for 8 cycles; 130% for 10 seconds with transfer to  
bypass  
BATTERY PARAMETERS  
Type  
Valve-regulated, nonspillable, lead acid  
Qty. x Voltage x Rating  
Back-up Time  
20 x 12V x 7.0 Ah  
7 min. minimum  
40 x 12V x 7.0 Ah  
10 min. minimum  
Recharge Time  
(Internal Batteries Only)  
ENVIROMENTAL  
Operating Temperature  
Storage Temperature  
Relative Humidity  
Operating Elevation  
Storage Elevation  
Audible Noise  
7 hours to 95% capacity after full discharge into 100%  
load  
0° C to +40° C (+32° F to +104° F)  
-15° C to +50° C (+5° F to +122 °F)  
0% to 95%, non-condensing  
Up to 3000 m (10,000 ft.) at 40° C without derating  
15.000 m (50,000 ft.) maximum  
<55 dB ”A” at 1 metre  
<65 dB ”A” at 1 metre  
AGENCY  
Safety  
EN50091-1-1; TUV/GS Listed; CE Low Voltage Directive  
EN50091-2, Class A; CE EMC Directive  
IEC 801-2, Level 4 / IEC 801-3,  
EMI/EMC  
Immunity  
Level 3 / IEC 801-4, Level 4 / IEC801-5,Level 3  
25  
 
SPECIFICATIONS  
GXT6000T-230X  
6000 / 4200  
MODEL NUMBER  
MODEL RATING VA/W (max)  
DIMENSIONS: mm (in)  
Unit  
GXT10000T-230X  
10000 / 7000  
260 x 555 x 803  
(10.5 x 22.0 x 31.5)  
400 x 850 x 1065  
(16.0 x 33.5 x 42.0)  
340 x 650 x 960  
W x D x H  
(13.5 x 25.5 x 38.0)  
510 x 840 x 1235  
Shipping  
(20.0 x 33.0 x 48.5)  
W x D x H  
WEIGHT: kg (lbs)  
Unit  
139 (306)  
170 (374)  
244 (538)  
284 (626)  
Shipping  
Input/Output Connections  
INPUT AC PARAMETERS  
Voltage Range (typical)  
100% - 90% Loading  
90% - 70% Loading  
70% - 30% Loading  
Hardwire terminal block  
230 VAC nominal; variable based upon output load  
186 VAC to 280 VAC; ±5.0 VAC  
159 VAC to 280 VAC; ±5.0 VAC  
139 VAC to 280 VAC; ±5.0 VAC  
30% - 0% Loading  
Frequency  
119 VAC to 280 VAC; ±5.0 VAC  
46.6 – 52.4 Hz or 57.1 - 62.9 Hz; auto sensing  
OUTPUT AC PARAMETERS  
Voltage  
208/220/230/240 VAC (switch selectable); ±7%  
50 Hz or 60 Hz; auto sensing  
Sinewave  
Frequency  
Waveform  
Main Mode Overload  
200% for 8 cycles; 130% for 10 seconds with transfer to  
bypass  
BATTERY PARAMETERS  
Type  
Valve-regulated, nonspillable, lead acid  
Qty. x Voltage x Rating  
Back-up Time  
20 x 12V x 7.0 Ah  
7 min. minimum  
40 x 12V x 7.0 Ah  
10 min. minimum  
Recharge Time  
(Internal Batteries Only)  
ENVIROMENTAL  
Operating Temperature  
Storage Temperature  
Relative Humidity  
Operating Elevation  
Storage Elevation  
Audible Noise  
7 hours to 95% capacity after full discharge into 100%  
load  
0° C to +40° C (+32° F to +104° F)  
-15° C to +50° C (+5° F to +122 °F)  
0% to 95%, non-condensing  
Up to 3000 m (10,000 ft.) at 40° C without derating  
15.000 m (50,000 ft.) maximum  
<55 dB ”A” at 1 metre  
<65 dB ”A” at 1 metre  
AGENCY  
Safety  
EN50091-1-1; TUV/GS Listed; CE Low Voltage Directive  
EN50091-2, Class A; CE EMC Directive  
IEC 801-2, Level 4 / IEC 801-3,  
EMI/EMC  
Immunity  
Level 3 / IEC 801-4, Level 4 / IEC801-5,Level 3  
26  
 
LIMITED WARRANTY  
Liebert Corporation extends the following LIMITED WARRANTY to  
the purchaser and to its customer (collectively referred to as the  
"Purchaser"): the enclosed Uninterruptible Power System (UPS) and  
components are free from defects in materials and workmanship  
under normal use, service, and maintenance FOR A PERIOD OF  
TWO YEARS FROM THE DATE OF ORIGINAL PURCHASE from  
Liebert or the Liebert dealer or retailer. THE FOREGOING  
WARRANTY IS THE ONLY WARRANTY GIVEN AND NO OTHER  
WARANTY IS PROVIDED, EXPRESS OR IMPLIED, INCLUDING  
WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A  
PARTICULAR PURPOSE. Certain aspects of disclaimers are not  
applicable to consumer products acquired by individuals and used for  
personal, family, or household purposes (as distinguished from  
industrial or other purposes). Local laws may not allow limitations on  
how long an implied warranty lasts, so the above limitation may not  
apply to you. This warranty gives you specific legal rights, and you  
may have other rights which vary according to local law.  
Certain repairs or services are the responsibility of the Purchaser and  
the Purchaser is expected to pay for them. This warranty does not  
extend either to products with removed or altered serial numbers or to  
any losses or damages due to act of God or source external to the  
product, misuse, accident, abuse, neglect, negligence, unauthorised  
modification, alteration, or repair, use beyond rated capacity, or  
improper installation, maintenance, application or use, including,  
without limitation, use in a manner contrary to the accompanying  
instructions or applicable codes. WARNING: Warranty is void if the  
battery is allowed to discharge below the minimum battery cut-off  
point. The battery must be recharged every four (4) to six (6) months  
when not in use.  
If the UPS fails to conform with the above warranty within the two year  
warranty period, Liebert will repair or replace the UPS, at Liebert's  
option. Repairs or replacements are warranted for the remainder of  
the original warranty period. Purchaser, to make a warranty claim,  
should call to obtain a Returned Goods Authorisation number and  
shipping instructions. Return transportation costs to Liebert are the  
responsibility of the Purchaser.  
"LIFE SUPPORT" APPLICATIONS  
Due to the diversity of applications and considerations to be applied in  
each case, Liebert does not recommend or knowingly sells its  
products for such use.  
The responsibility for risk assessment and management in applications  
where the malfunction or failure of the UPS could be reasonably  
expected to give rise to a risk of human life shall be the sole  
responsibility of the purchaser. Liebert accepts no liability for  
consequential harm in such applications.  
27  
 
UPStation GXT™  
6 & 10 kVA  
230 V  
Technical Support  
Worldwide Support  
Worldwide Fax Tech Support  
+1 614 841-6755  
+1 614 841-5471  
U.K.  
France  
Germany  
Italy  
+44 1628 403 200  
+33 1 4 360 26 19  
+49 21669649340  
+39 2 98250 1  
Netherlands  
E-mail  
+00 31 475 504050  
Web site  
The Company Behind The Products  
While every precaution has been taken to  
ensure accuracy and completeness of this  
literature, Liebert Corporation assumes no  
responsibility, and disclaims all liability for  
damages resulting from use of this information  
or for any errors or omissions.  
With more than 500,000 installations around  
the globe, Liebert is the world leader in  
computer protection systems.  
Since its  
founding in 1965, Liebert has developed  
a
complete range of support and protection  
systems for sensitive electronics:  
© 2001 Liebert Corporation All rights reserved  
throughout the world. Specifications subject  
to change without notice.  
·
·
·
Environmental systems: close-control air  
conditioning from 1.5 to 60 tons.  
Power conditioning and UPS with power  
ranges from 250 VA to more than 1000 kVA.  
® Liebert and the Liebert logo are registered  
trademarks of Liebert Corporation. All names  
referred to are trademarks or registered  
trademarks of their respective owners.  
Integrated  
systems  
that  
provide  
both  
environmental and power protection in  
single, flexible package.  
a
SLI-23445 (3/01) Rev. 2  
·
·
Monitoring and control — on-site or remote —  
from systems of any size or location  
Service and support, through more than 100  
service centres around the world, and a 24-  
hour Customer Response Centre.  
28  
 

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