Emerson GXT1000-MT, GXT2000L-MT, GXT1000L-MT, GXT2000-MT, GXT3000-MT User Manual
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Liebert GXT-MT
1 - 3 kVA True On Line Double Conversion UPS
User Manual
Power Protection for
Business-Critical Continuity
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page １ V2.11 Emerson Network Power
Liebert GXT-MT Series 1-3 kVA UPS
User Manual
Version: V2.11
Revision date: September 29, 2005
Emerson Network Power provides customers with technical support. Users may contact the nearest
Emerson local sales office or service center.
While every precaution has been taken to ensure accuracy and completeness in this manual,
Emerson Network Power assumes no responsibility and disclaims all liability for damages resulting
from use of this information or for any errors or omissions.
Emerson Network Power pursues a policy of continuous product development and reserves the
right to change the equipment design without notice.
Copyright © 2005 by Emerson Network Power
All rights reserved. The contents in this document are subject to change without notice
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page 2 V2.11 Emerson Network Power
Table of Contents
Contents
Safety Instructions
1. Description of commonly used notations 5
2. Product Introduction 6
3. System Description 7
4. Installation 8-9
5. Connection and operation 10-13
6. Operating modes 14-15
7. Communication port 16
8. Software 17
9. Maintenance 18-19
10. Troubleshooting 20
11. Technical data 21-22
Appendix: Back Panel 23-24
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page 3 V2.11 Emerson Network Power
Safety Instructions
Safety Instructions
As dangerous voltages are present within the UPS, only an Emerson technician or an Emerson-authorized
technician is permitted to open it. Failure to observe this could result in electric shock risk and invalidatio n
of any implied warranty
Transport
• Please transport the UPS system only in the original packaging (to protect against shock and
impact).
Set-up
•
Condensation may occur if the UPS system is moved directly from a cold to a warm environment.
The UPS system must be absolutely dry before being installed. Please allow an acclimatization
time of at least two hours.
•
Do not install the UPS system near water or in damp environments.
•
Do not install the UPS system where it would be exposed to direct sunlight or near heat source.
•
Do not block off ventilation openings in the UPS system’s housing.
Installation
This manual contains information concerning the installation and operation of the Emerson Network Power
Liebert GXT-MT Uninterruptible Power System (UPS)
All relevant parts of the manual should be read prior to commencing the installation.
• Do not connect appliances or equipment (e.g. laser printer) to the output socket, which would
overload the UPS system.
• Place cables in such a way that no one can step on or trip over them.
• Do not connect domestic appliances such as hair dryers to UPS output sockets.
• Connect the UPS system only to an earthed shockproof socket outlet.
• The building wiring socket outlet (shockproof socket outlet) must be easily accessible and close
to the UPS system.
• Please use only VDE-tested, CE-marked mains cable (e.g. the mains cable of your computer) to
connect the UPS system to the building wiring socket outlet (shockproof socket outlet).
• Please use only VDE-tested, CE-marked power cables to connect the loads to the UPS system.
• The UPS must be commissioned and serviced by an authorized representative of Emerson
Network Power. Failure to do so could result in personnel safety risk, equipment malfunction and
invalidation of warranty.
• The Liebert GXT-MT has been designed for Commercial/Industrial use only, and is not
recommended for use in life support applications.
• When installing the equipment, it should ensure that the sum of the leakage current of the
UPS and the connected consumer does not exceed 3.5mA.
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page 4 V2.11 Emerson Network Power
Safety Instructions
Operation
• Do not disconnect the mains cable on the UPS system or the building wiring socket outlet
(shockproof socket outlet) during operations since this would cancel the protective earthing of the
UPS system and of all connected loads.
• The UPS system features its own, internal current source (batteries). The UPS output sockets or
output terminals block may be electrically lived even if the UPS system is not connected to the
building wiring socket outlet.
• In order to fully disconnect the UPS system, first press the Standby switch then disconnect the
mains lead.
• Ensure that no fluids or other foreign objects can enter the UPS system.
• The UPS operates with hazardous voltages. Only qualified maintenance personnel may carry out
repairs.
Maintenance, servicing and faults
• The UPS system operates with hazardous voltages. Repairs may be carried out only by qualified
maintenance personnel.
• Caution - risk of electric shock. Even after the unit is disconnected from the mains power supply
(building wiring socket outlet), components inside the UPS system are still connected to the
battery and are still electrically live and dangerous.
• Before carrying out any kind of servicing and/or maintenance, disconnect the batteries and verify
that no current is present and no hazardous voltage exist in the terminals of high capability
capacitor such as BUS-capacitors.
• Only persons who are familiar with batteries and with the required precautionary measures may
replace batteries and supervise operations. Unauthorised persons must be kept well away from
the batteries.
• Caution - risk of electric shock. The battery circuit is not isolated from the input voltage.
Hazardous voltages may occur between the battery terminals and the ground. Before touching,
please verify that no voltage is present!
• Batteries may cause electric shock and have a high short-circuit current. Please take the
precautionary measures specified below and any other measures necessary when working with
batteries:
－ remove wristwatches, rings and other metal objects
－ use only tools with insulated grips and handles.
• When changing batteries, install the same number and same type of batteries.
• Do not attempt to dispose of batteries by burning them. This could cause battery explosion.
• Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes. It
may be toxic.
• Please replace the fuse only by a fuse of the same type and of the same amperage in order to
avoid fire hazards.
• Do not dismantle the UPS system
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page 5 V2.11 Emerson Network Power
Commonly Used Notations
1. Description of commonly used notations
Some or all of the following Notations may be used in this manual and may appear in your
application process. Therefore, all users should be familiar with them and understand their
explanations.
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page ６ V2.11 Emerson Network Power
2 . Product Introduction
The Liebert GXT-MT On-Line-Series is an uninterruptible power supply incorporating
double-conversion technology. It provides perfect protection specifically for Novell, Windows NT and
UNIX servers.
The double-conversion principle checks all mains power disturbances. A rectifier converts the
alternating current from the socket outlet to direct current. This direct current charges the batteries and
powers the inverter. On the basis of this DC voltage, the inverter generates a sinusoidal AC voltage,
which permanently supplies the loads.
Computers and peripherals are thus powered entirely by the inverter on the mains mode and in the
event of power failure, the maintenance-free batteries power the inverter.
This manual covers the UPS listed as follows. Please confirm whether it is the model you intend to
purchase by performing a visual inspection of the Model No. on the rear panel of the UPS.
Model Number Runtime
GXT1000-MT Standard
GXT1000L-MT Long Run
GXT2000-MT Standard
GXT2000L-MT Long Run
GXT3000-MT Standard
GXT3000L-MT Long Run
Product Introduction
Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page ７ V2.11 Emerson Network Power
System Description
3. System Description
Figure 1: Display Panel
Switch Function
ON - Switch
Turn on UPS system:
By pressing the ON-Switch “I” the UPS system is turned on.
Deactivate acoustic alarm:
By pressing this switch an acoustic alarm can be deactivated.
OFF-Switch
When mains power is normal, the UPS system switches to Standby mode by pressing
OFF-Switch “
“. It is then switched to Bypass and the inverter is off. At this moment,
the output sockets are supplied with voltage via the bypass if the mains power is
available.
Display Function
LINE LED
The green LINE LED lights up if mains voltage is applied to the UPS input.
LINE LED blinks when the phase and neutral conductor have been reversed at the
input of the UPS system.
If LINE LED and BATTERY-LED light up, the mains power supply is out of tolerance.
BATTERY LED
The orange-coloured BATTERY-LED lights up when the mains power has failed and
the inverter is being powered by the batteries.
BYPASS LED
The orange-coloured BYPASS LED lights up when the UPS system is supplying
voltage provided by the mains power via the bypass.
INVERTER LED
The green-coloured INVERTER LED lights up if the UPS system is supplying voltage
provided by the mains power via the inverter.
FAULT LED
The red FAULT LED lights up and an acoustic warning signal is issued continuously
when the UPS system is in fault condition. Press the Standby switch in order to turn off
the warning tone.
Display Function
LOAD & BATTERY
CAPACITY LEDs
These LEDs show the load of the UPS system if the mains power is available (normal
operation):
2nd LED 96%-105 % 3rd LED 76%-95 %
4th LED 56%-75 % 5th LED 36%-55 %
6th LED. 0-35 %
In the battery operation, the LEDs indicate the capacity of the batteries:
2nd LED 0-25 % 3rd LED 26%-50 %
4th LED 51%-75 % 5th LED 76%-95 %
6th LED 96%-100 %
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