POWER AVAILABILITY
USER MANUAL
™
GXT2-6000RT208
120/208V
120/240V
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TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INTRODUCTION AND SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters. . . . . . . . . . . . . . . . . . . . 5
Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DC to DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Main Frame and Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Internal Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Removable Power Distribution Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WHAT’S INCLUDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INSTALLATION AND CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Install the Main Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1.1 Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1.2 Installing the Adjustable Rack-Mount Kit—Sold Separately . . . . . . . . . . . . . . . . . . . . . . . . . 11
External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connect Input/Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3.1 Replacing a power distribution box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3.2 Distribution Box Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3.3 PD-HDWR and PD-HDWR-MBS Terminal Block Connections. . . . . . . . . . . . . . . . . . . . . . . . 15
6.3.4 PD-001 Power Distribution Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Install the Grounding Electrode Conductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install the Internal Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
INITIAL STARTUP AND ELECTRICAL CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
7.1
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CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
GXT2-6000RT208 Configuration Program Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.1.1 What You Will Need. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Configuration Program—Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Establishing Communication Link with the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Configuration Program—Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.4.1 Read/Confirm UPS Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.4.2 Changing UPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.4.3 Programming Rejected? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.4.4 Exit Without Changing UPS Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
UPS Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.5.1 Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.5.2 Auto Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.5.3 L-N Reverse Detection (120V UPS Models Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.5.4 Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Options Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Options Tab Used With Earlier GXT 2U Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Battery Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.8.1 Low Battery Time Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.8.2 Auto Battery Test Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.8.3 Battery Cabinets Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.8.4 Auto Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
About Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.9
CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
ON/Alarm Silence/Battery Test Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
OFF/Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Battery Level Indicators (5 Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Fault Indicator (Red) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Bypass Indicator (Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
UPS ON Indicator (Green). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Battery Indicator (Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AC Input Indicator (Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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10.0 MODES OF OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
10.1 Normal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.2 Battery Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.3 Battery Recharge Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
11.0 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
11.1 Communications Interface Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.1.1 DB-9 Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.1.2 Communications SNMP Web Card SNMP Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.2 Pin 4 - Remote Shutdown on Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.3 UPS Intelligent Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.4 Remote Emergency Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
12.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
12.1 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.1.1 Internal Battery Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.2 UPS Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
13.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
13.1 Auto-Learning Battery Run Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
14.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
14.1 Product Warranty Registration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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FIGURES
Figure 1
6 kVA Dual Inverter GXT 2U (front and rear views) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Support base and spacers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
30A branch circuit breaker connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Factory default settings for 120VAC UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
REPO switch connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
TABLES
Electrical requirements—PD-HDWR and PD-HDWR-MBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical requirements—PD-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DB-9 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Fault indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Alarm conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Battery run times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
UPS specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Battery specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 10 Power distribution box specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 11 External battery cabinet specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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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), 100/200, 110/220, 115/230, 120/208,
120/240 or 127/220 VAC, 50 Hz or 60 Hz supply. The factory default setting is 120/208 VAC, 60 Hz.
Installation instructions and warning notices are located in this manual.
This UPS is only for use with a four-wire input (L1, L2, N, G).
This UPS MAY NOT be used with a three-wire, single-phase utility source (L1, N, G).
ELECTROMAGNETIC COMPATIBILITY—The GXT2-6000RT208 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. Operat-
ing 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, flam-
mable 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 DIS-
POSAL 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 appli-
ance 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 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 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
1.0 GLOSSARY OF SYMBOLS
Risk of electrical shock
Indicates caution followed by important instructions
!
AC input
AC output
Requests the user to consult the manual
i
+
-
Indicates the unit contains a valve-regulated lead acid battery
PbH2SO4
Recycle
R
DC voltage
Equipment grounding conductor
Bonded to ground
AC voltage
ON/Alarm Silence/Battery Test
OFF/Bypass
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Introduction and System Description
2.0 INTRODUCTION AND SYSTEM DESCRIPTION
Congratulations on your choice of the Liebert UPStation GXT2-6000RT208 Uninterruptible Power
Supply (UPS). It provides conditioned power to microcomputers and other sensitive electronic equip-
ment.
Upon generation, AC power is clean and stable. However, during transmission and distribution it is
subject to voltage sags, spikes or complete power failure that may interrupt computer operations,
cause data loss or even damage equipment. The UPStation GXT2-6000RT208 protects equipment
from these disturbances.
The UPStation GXT2-6000RT208 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 equip-
ment with clean sinewave power. Sensitive electronic equipment operates best from sinewave power.
For ease of use, the UPStation GXT2-6000RT208 features a light-emitting diode (LED) display to
indicate both load percentage and battery capacity. It also provides self-diagnostic tests, a combina-
tion ON/Alarm Silence/Battery Test button, a Standby button, user configurable program and two
levels of alarms when the unit is operating on battery.
The UPStation GXT2-6000RT208 has an interface port for communication between the UPS and a
network server or other computer systems. This port provides detailed operating information includ-
ing voltages, currents and alarm status to the host system when used in conjunction with Liebert’s
MultiLink™ software. MultiLink software can also control UPS operation remotely.
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System Description
3.0 SYSTEM DESCRIPTION
Dynamic
Bypass
Input
Output
L1
L1
L2
N
TVSS &
EMI/RFI
Filters
Rectifier
/PFC
Inverter
L2
N
DC to DC
Converter
Battery
Charger
Battery
G
G
3.1
3.2
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 util-
ity 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 GXT2-6000RT208.
3.3
3.4
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 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.
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 GXT2-6000RT208
is plugged in, even when the UPS is not turned on.
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System Description
3.5
3.6
3.7
DC to DC Converter
The DC to DC converter utilizes energy from the battery system and raises the DC voltage to the opti-
mum operating voltage for the inverter. This allows the inverter to operate continuously at its opti-
mum efficiency and voltage, thus increasing reliability.
Battery
The UPStation GXT2-6000RT208 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 GXT2-6000RT208 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 indicator (other indicators may be illu-
minated to indicate the diagnosed problem).
The user may manually transfer the connected load from the inverter to bypass by pressing the
Standby button once.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances
on the utility supply.
6
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Major Components
4.0 MAJOR COMPONENTS
The GXT2-6000RT208 is composed of three major assemblies to provide easier handling, installation
and versatility.
4.1
Main Frame and Electronics
This 4U cabinet arrives without internal batteries to lighten the UPS for easier installation. Once the
cabinet has been placed in its final floor or rack position, the internal batteries may be installed. The
UPS is shipped with a basic hardwire distribution box.
Figure 1 6 kVA Dual Inverter GXT 2U (front and rear views)
FRONT VIEW
REAR VIEW
StatusIndicators
®
and Controls
Intellislot
Port
DB-9
Communications
Port
Front Bezels (2)
Output
Circuit
Breaker
Cooling Fan
(1 of 4)
+
+
Grounding
Electrode
Conductor
External Battery
Connector
REPO
Switch
Input Circuit
Breaker
Hardwire
Knockouts
Power Distribution Box
Standard Module
Support Base
Battery Compartment (behind bezel);
Internal Battery Pack is shipped loose
4.2
Internal Battery Pack
The front bezels may be pulled forward and removed to
reveal the battery access door. The internal battery pack
is a compact assembly ready to slide into the battery
compartment after the front battery access door has been
opened. Electrical connection is automatic upon
insertion.
7
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Major Components
4.3
Removable Power Distribution Box
The UPS is shipped with a basic hardwire power distribution pack installed. For maximum flexibility,
this may be easily replaced with either of two optional power distribution boxes that provide the ben-
efits of hardwire input and output plus manual bypass switch or plug/receptacle convenience with
manual bypass switch.
PD-HDWR
Power Distribution Box With
Hardwire Connections
(Standard - Ships With UPS)
PD-HDWR-MBS
Power Distribution Box
With Hardwire Connections
and Manual Bypass Switch
(Optional)
PD-001
Power Distribution Box
With Wired Connections
and Manual Bypass Switch
(Optional)
8
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What’s Included
5.0 WHAT’S INCLUDED
The GXT2-6000RT208 is shipped with the following items:
• GXT2-6000RT208 user manual
• Vertical display overlay
• Front bezels - 2
• Top bezels - 2
• Battery cover grille
• MultiLink software CD
• MultiLink serial cable, 10 ft (3m)
• Rack mount handles
• Support base - 2
• GEC ring connector
• Mounting hardware
• Configuration program disk
• Ferrite beads (2)
!
L1 L2
BYPASS
Top bezels
(tower use)
UPS ON
!
Battery cover grille
BATTERY
Front bezels
AC INPUT
-
+
UPStation GXT
Vertical
display
overlay
Rack mount
handles
MultiLink
serial cable
10 ft (3m)
MultiLink
software CD
GXT 2U™ Configuration
Program
For use with LiebertGXT2U model UPS
systems
Version 1.6
For Windows 95/98/NT
To Install:
Choose the Start button on the Taskbar
and select Run
GEC connector
Support base
with spacers
Mounting hardware
Configuration
disk
Ferrite
beads (2)
9
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Installation and Configuration
6.0 INSTALLATION AND CONFIGURATION
This section includes instructions on how to install, configure and perform initial electrical checks of
your UPS installation.
DO NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until
Visually inspect the UPS for freight damage. Report damage to the carrier and your local dealer or
Liebert representative.
CAUTION
!
moving it.
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, cor-
rosives and other conductive contaminants. Maintain a minimum clearance of 4" (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 sustained temperatures above 77°F (25°C) reduces battery life.
6.1
Install the Main Cabinet
The GXT2-6000RT208 may be installed either as a tower unit or in a rack, depending on available
space and use considerations. Determine the type of installation and follow the appropriate instruc-
6.1.1 Tower UPS Installation
When using the GXT2-6000RT208 in a tower configuration, use the included support base (shown
below, left) to stabilize the UPS.
If any external battery cabinets are added, they will include spacers to accommodate the additional
cabinets (shown below, right).
Figure 2 Support base and spacers
End Bases
2U Spacer
Spacers added to support
4U Support Base
base to accommodate
additional battery cabinets
Attach Bezels to Top
When used as a tower, the GXT2-6000RT208 requires bezels attached to the top. To connect the
bezels:
1. Position the UPS so that the battery compartment is on the bottom.
2. Attach the top bezels by placing them on the mounting holes and sliding them toward the rear of
the UPS.
10
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Installation and Configuration
6.1.2 Installing the Adjustable Rack-Mount Kit—Sold Separately
This kit contains parts needed to mount several different models of UPS and external battery cabi-
nets into EIA310-D standard four-post racks that are 18-32" deep (457-813mm). The weight limit per
pair of adjustable rack-mounting brackets is 200 pounds (91 kg).
Parts included are:
Item
Quantity
Rear bracket members
Front bracket members
Inner bracket members
M4 x 8mm machine screws
M4 locking hex nuts
2
2
2
16
8
M5 x 16 mm machine screws
Grease packet.
12
1
Tools needed for installation are:
• one Phillips screwdriver
• one 7mm wrench
The adjustable rack-mounting brackets feature retaining latches to prevent users from inadvertently
sliding the UPS or battery cabinet out of the rack.
To install the rack mount brackets:
Return
flanges
1. Unpack two (2) rack-mounting bracket assemblies and
mounting hardware from this kit. Bracket assemblies are
interchangeable between left-hand or right-hand.
Retaining
Latches
Remove inner member of each bracket assembly as shown
in at right by extending it to its outermost position,
depressing the retaining latch and then pulling the inner
member out of the bracket assembly.
2. Determine the height position inside the rack enclosure
where you want to mount the UPS or battery cabinet.
Front
members
Inner
members
CAUTION
!
Reduce the risk of tipping the rack enclosure by
placing the UPS or battery cabinet in the lowest
possible rack position.
3. Install the rear member of each bracket assembly into rack
enclosure with two (2) 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. Extend the bracket assembly by
sliding the front member forward until it touches the front
rack mounting rail. Insert two (2) M5 screws loosely (finger-
tight) into top and bottom holes of the return flange on each
front member. Make sure bracket assemblies are at the
same mounting height on all four (4) rack mounting rails.
M5 screws
Front rack
mounting rails
Rear rack
mounting
rails
M5 screws
11
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Installation and Configuration
4. Get eight (8) M4 screws and eight (8) 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 (4) screws and (4) nuts per bracket
assembly as shown in at right. 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 Steps 2 and 3.
5. 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 1 to the equipment on
both sides as shown at right with eight (8) M4 screws
provided in the kit. Make sure retaining latch is near the rear
of the equipment as shown (see figure at right).
M4 nuts
M4
screws
18" rack
depth
M4 nuts
M4
M4 nuts
screws
32" rack
depth
M4 nuts
Retaining latch
6. Open the grease packet provided in the kit. Apply a 1" long
bead of grease at four (4) 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.
M4 screws
UPS or battery
cabinet
CAUTION
!
Lifting equipment into the rack may be a two-person
6.
job, depending on the weight of the equipment. See
equipment’s user manual.)
Front
7. Insert the equipment, with inner members attached in
Step 5, 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
M4 screws
Apply
grease
equipment into the rack (see figure at right). Ends of inner
members are tapered to allow the rear of the equipment to be
angled upward before insertion, if space allows.
UPS or
battery
cabinet
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 equip-
ment into the rack (see figure below right). The equipment
should move smoothly into the bracket assemblies. If it does
not, recheck the alignment of the front and rear members
from Steps 2 and 3.
Apply
grease
(inside)
8. 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 (4) 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 (4) customer-supplied fasteners.
... and push it
into the rack.
Insert the UPS into the front
members, lift the front ...
12
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Installation and Configuration
6.2
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.
CAUTION
!
cabinets can be used in rack-mount or tower configuration. Take proper precautions when
lifting them.
CAUTION
!
Verify that the battery cabinet circuit breaker is in the OFF position. Do no energize the
battery cabinet at this time. When installation is complete, you will be instructed to turn on
the circuit breaker.
When the external battery cabinet is received, it should be inspected for freight damage. Report dam-
age to the carrier and your local dealer or Liebert representative.
To install an external battery cabinet:
1. For slide rail installations, first remove the top/side fin by sliding it forward and lifting it up.
Optional rack-mount handles are shipped with the external battery cabinet and may be installed
now. (Securing hardware and slide rails are sold separately. Please contact your local dealer or
Liebert representative for these additional options and any assistance needed.)
2. Fasten the slides into position with the screws according to the instructions included with the
slide rails.
3. Use the enclosed support bases for the tower option to
prevent the assembly from tipping over. One additional set
of support base extensions ships with each external battery
cabinet.
4. Connect the supplied external battery cabinet cable to either
of the connectors on the rear of the external battery cabinet,
Support Base With
then to the rear of the UPS.
Spacers for External
Battery Cabinets
5. The UPS is now equipped with additional backup battery
run time. For approximate battery run times, refer to Table
7 - Battery run times in this manual.
6. Do NOT turn on the battery cabinet circuit breaker at this
time. Please complete the remainder of the installation first.
NOTE
+
After installation is complete, you must use the included
configuration program to program the UPS for the
number of external battery cabinets connected.
Instructions for using the configuration program follow
UPS and Four External Battery
Cabinets With Support Base
13
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Installation and Configuration
6.3
Connect Input/Output Power
The UPS ships with the basic hardwire box attached. If an
optional model is to be used, remove the standard box and
install the optional box using the three captive mounting
screws marked in the illustration, below, right.
Slide
cover
over
connec-
tors
6.3.1 Replacing a power distribution box
Whenever a power distribution box is not attached to a UPS,
the cover must be slid over the electrical connectors to prevent
damage or injury.
1. On the power distribution box attached to the UPS,
locate the three captive mounting screws holding the box
to the UPS (see illustration above, right).
Loosen screws
to move cover
2. Turn the screws until the box can be pulled away from the
UPS. Exercise care to avoid removing screws from the
hardwire box.
3. On the replacement power distribution box to be
attached to the UPS, loosen the cover over the electrical
connectors by backing out the three screws one turn each.
4. Slide the cover open to expose the electrical connectors.
5. Gently retighten the three screws loosened in Step 3.
6. Align the connectors on the box and UPS.
7. Push the box into place.
8. Holding the box firmly against the UPS, tighten the three
captive mounting screws until the box is secure. Do not
overtighten.
Mounting screws
for removable box
6.3.2 Distribution Box Electrical Connections
Electrical connections are made through a removable power distribution box that attaches to the rear
of the UPS.
The installer must provide a 30A branch circuit breaker. The input circuit breaker on the distribution
box and the output circuit breaker on the rear fixed-panel of the UPS disconnect all power between
the main cabinet and the distribution box.
Models equipped with a manual bypass switch pass utility power directly to the bypass switch from
the input terminal block. The input circuit breaker on the distribution box does not disconnect power
from the manual bypass switch.
Figure 3 30A branch circuit breaker connection diagram
PD-HDWR Distribution Box
PD-HDWR-MBS Distribution Box
Input
Input
Utility
30A External
Utility
Byp
Output
Output
30A External
Branch Circuit
Breaker
30A Input
Circuit
Breaker
30AInput
Circuit
Inv
Branch Circuit
Breaker
Breaker
30A UPS Output
Circuit Breaker
30A UPS Output
Circuit Breaker
UPS - PFC, Battery, Inverter
UPS - PFC, Battery, Inverter
14
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Installation and Configuration
6.3.3 PD-HDWR and PD-HDWR-MBS Terminal Block Connections
Conduit entry holes are provided on the rear and side of the box. Input and output wiring should not
share the same conduit.
Table 1
Electrical requirements—PD-HDWR and PD-HDWR-MBS
Input Current Recommended (Max.)
Recommended Wire
(including ground wire)
(75°C copper wire)
Maximum Wire
Accepted by
Terminal Block
Terminal
Tightening
Torque
Rating
24A
External Overcurrent
Protection
30A
10 AWG
8 AWG
20 in-lb
The standard PD-HDWR comes installed on the UPS. The PD-HDWR-MBS with manual bypass
switch is optionally available. Both have the same hardwire terminal connections.
N
L2
L1
N
L2
L1
30A Max. Branch
Overcurrent Protection
OUTPUT
INPUT
8-10 AWG - USE COPPER WIRE ONLY - 20 in-lb - Strip 7mm
N
L2
L1
N
L2
L1
0
0
Output to Load - See Note 1
Input to UPS - See Note 2
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 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.
For best performance, distribute all L-N loads evenly between L1 and L2.
6.3.4 PD-001 Power Distribution Box
Output
Receptacles
An optional PD-001 is available to provide the conve-
nience of an L14-30P input plug and output receptacles.
To use this box, remove the original PD-HDWR hardwire
Manual
Bypass
Switch
box and install the PD-001.
Table 2
Electrical requirements—PD-001
Recommended (Max.)
Input Current
Rating
External Overcurrent
Protection
Required Utility
Receptacle
24A
30A
NEMA L14-30R
15
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Installation and Configuration
6.4
Install the Grounding Electrode Conductor
A Grounding Electrode Conductor must be attached to the rear panel using the M5x12 Phillips screw
provided. This connection is required in addition to the power input ground connection to the remov-
able power distribution box.
2
Install an 8 AWG (10 mm ) (75°C copper wire) (minimum size, see NEC 250-5d, 250-81, 250-83, table
250-94) grounding electrode conductor to the nearest effectively grounded metal structural member,
nearest effectively grounded metal water pipe or other grounding electrode in the grounding electrode
system. If the grounding electrode conductor must be protected, non-metal conduit is recommended. If
metal conduit must be used, bond both ends of the conduit to the grounding electrode conductor. Con-
duit is not an acceptable grounding electrode conductor.
A 5mm ring lug for 8AWG wire lug is provided in the accessory box. Other suitable connectors may be
used.
Ground Electrode System
or Protective Earth System
NOTE
IN BATTERY MODE ONLY, the UPS operates as a separately derived source and contains a
neutral to ground bonding jumper. A grounding electrode conductor (GEC) must be installed
in accordance with national and local wiring codes and regulations.
6.5
Install the Internal Battery Pack
To facilitate shipping and installation, the GXT2-6000RT208 ships
without the internal battery installed. Once the UPS is installed in
place, the internal battery pack must be installed.
Controls
and
Indicators
1. Unpack the internal battery from its shipping container.
2. Lift the battery pack from its container, holding it in the center
Screws
for battery
door
of the pack. Do NOT lift the battery pack by grasping the
connector on the rear.
3. Align the battery pack so that the rear connector is nearest the
control panel.
Battery
Compartment
4. Slide in the battery pack until fully inserted.
5. Install the battery door, tightening the two captive screws, finger
tight. The battery door will not install if the battery is not fully
inserted.
Liebert
!
6. For tower installation, place the horizontal overlay over the
controls and indicators (see illustration at right).
Battery
Battery cover
7. Install the two front bezels.
!
Front bezels
Back of
battery
Battery
connector
16
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Initial Startup and Electrical Checks
7.0 INITIAL STARTUP AND ELECTRICAL CHECKS
Initial Startup and the Configuration Program—The UPS ships with a default 120 VAC L-N
setting. This is also the most robust setting in that it can operate with either input phase angle (120
or 180 degrees). Perform initial system checks first. If the UPS configuration needs to be modified for
your application, then go to the next section to review use of the configuration program. Some config-
uration changes require that the UPS be in the OFF mode while powered from the utility. Therefore,
the installer must confirm that the UPS input has been properly wired. After re-configuring your
UPS, the UPS may be put into service with the intended loads.
Hardwire Input Connections (For L14-30P Plug-in Connections, skip to 7.1 - L14-30P Plug-in Con-
WARNING
!
Miswiring power to the input terminal block (L1-L2-N-G) or connecting to single phase
voltages (L-N-G only) may damage the UPS.
1. Verify that the Input and 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. Turn on the battery cabinet circuit breaker now.
5. If you are using a distribution box that includes a manual bypass switch, place the switch 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-N and L1-L2 voltages.
a. If no manual bypass switch is used, there will be no output voltage at this time. If a manual
bypass switch is used, verify that the same voltages appear at the Output terminals. If a
manual bypass switch is used, the Bypass lamp will light by the switch. If no manual bypass
switch is used, there will be no output voltage at this time.
b. If the configuration program has been used to set the L-N voltage at 100, 110 or 115, then the
input phase angle is required to be 180 degrees.
c. If the configuration program as been used to set the L-N voltage at 127 VAC, then the input
phase angle is required to be 120 degrees (leading or lagging).
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 indicator
should illuminate on the front panel.
10. Press the On button for 1 second. The Bypass indicator will light for several seconds before the
UPS ON indicator turns on continuously. If the batteries are determined to charged above 80%,
an automatic battery test will run for about 15 seconds.
11. Close the Output circuit breaker on the rear of the UPS. If a manual bypass switch is used, the
UPS Available indicator by the switch will light. If a manual bypass switch is used, transfer the
switch to the UPS position. The output terminal block will be powered at this time.
12. Perform a Manual Battery Test - Press the On button for one (1) second. The front Battery
indicator will light for about 15 seconds and then return to only the UPS ON and AC Input
indicators being illuminated.
13. Review all setting option provided by the configuration program. Some changes require that the
UPS be OFF. If this is the case, these should be programmed before powering the loads. The
configuration program is described in the next section.
14. Connect all loads for normal operation.
17
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Initial Startup and Electrical Checks
7.1
L14-30P Plug-in Connections—Including the PD-001 Distribution Box
WARNING
!
Miswiring power to the input (L1-L2-N-G) or connecting to single phase voltages (L-N-G only)
may damage the UPS. A qualified electrician should verify that the L14-30R is properly wired
before attaching the UPS.
If the configuration program has been used to set the L-N voltage at 100, 110 or 115, then the input
phase angle is required to be 180 degrees.
If the configuration program as been used to set the L-N voltage at 127 VAC, then the input phase
angle is required to be 120 degrees (leading or lagging).
1. Verify that the input and output circuit breakers are off.
2. During initial system checks, unplug all loads (or 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. Turn on the battery cabinet circuit breaker.
5. If you are using a distribution box that includes a manual bypass switch, place the switch in
BYPASS position.
6. Plug in the UPS input plug.
7. Turn on the branch circuit disconnect to apply voltage to the UPS input.
8. If no manual bypass switch is used, there will be no output voltage at this time. If a manual
bypass switch is used, the Bypass lamp will light by the switch
9. Close the input circuit breaker located on the distribution box. The green Line lamp should
illuminate on the front panel.
10. Press the Start button for 1 second. The Bypass lamp will light for several seconds before the
Inverter lamp turn on continuously. If the batteries are determined to charged above 80%, an
automatic battery test will run for about 15 seconds.
11. Close the output circuit breaker on the rear of the UPS. If a manual bypass switch is used, the
Inverter lamp by the switch will light. If a manual bypass switch is used, transfer the switch to
the Inverter position. The output terminal block will be powered at this time.
12. Perform a Manual Battery Test by pressing the ON button for 1 second. The front Battery lamp
will light for about 15 seconds and then extinguish, leaving only the Inverter and Line lamps
illuminated.
13. Review all setting option provided by the configuration program. Some changes require that the
UPS be OFF. If this is the case, these should be programmed before powering the loads. The
configuration program is described in the next section.
14. Connect all loads for normal operation.
18
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Configuration Program
8.0 CONFIGURATION PROGRAM
The final step of installation may require custom configuration of your UPS using the enclosed config-
uration 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 120 VAC L-N and with no external batteries, the factory default set-
tings will be adequate. This manual illustrates the features available for modification, as well as the
factory default setting.
The factory default L-N setting is 120 VAC. When first powered by the AC input, the UPS will auto-
sense the utility phase angle between L1 and L2, setting the UPS to operate as either a 120/208 VAC
system (120 degrees, leading or lagging) or a 120/240 VAC system (180 degrees).
If your application requires that the L1-N, L2-N voltages be set at 100, 110, 115 or 127 VAC, the cor-
responding phase angle between L1 and L2 is restricted. The VAC settings of 100, 110 and 115 may
work only with a phase angle of 180 degrees. A VAC setting of 127 VAC will work only with a phase
angle of 120 degrees (leading or lagging).
To confirm the phase angle of the utility input, measure the L1-N, L2-N and L1-L2 VAC of the utility
input that is intended for the UPS. If the measured L1-L2 voltage is equal to the average L-N voltage
times 2.0, then the phase angle is 180 degrees and the L-N VAC may be set at 100, 110, 115 or 120
VAC. The nominal L1-L2 voltages for these four settings will be 200, 220, 230 or 240 VAC, respec-
tively.
If the measured L1-L2 voltage is equal to the average L-N voltage times 1.73, then the phase angle is
120 degrees and the L-N VAC may be set at either 120 or 127 VAC. The nominal L1-L2 voltages for
these two settings will be 208 or 220 VAC, respectively.
Selecting a L-N nominal voltage that is not compatible with the L1-L2 phase angle detected by the
UPS when AC input is applied will result in a fault alarm and the UPS will not operate from utility
power.
8.1
GXT2-6000RT208 Configuration Program Features
The configuration program enables the user to perform the following functions:
• Select one of five L-N output voltages to match local voltages
• Enable or 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 or disable the Auto-Battery test
• Set the Auto-Battery test to 7, 14, 21 or 28 days
• Specify the number of external battery cabinets connected to the UPS to adjust the remaining run
time calculations reported by Liebert software products
8.1.1 What You Will Need
In addition to the GXT2-6000RT208 UPS, you will need the configuration program diskette and serial
cable (beige or tan, three-wire: GND, TX, RX; straight through 2-2, 3-3, 5-5) included in the UPS
®
accessory box. A computer—desktop or laptop—running Windows 95 or later is also required to set
up and run the configuration program.
!
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Configuration Program
8.2
Configuration Program—Installation
An easy-to-use installation program will streamline the installation of the configuration program. If
you have a previous version of this configuration program installed, it is recommended that it be
uninstalled using its Uninstall program before installing this updated version.
1. Use the Windows Explorer to find and open the Lbt_gxt2-1.6.exe installation program on the
included software CD.
2. When you see this PreSetup window, select OK. This will open the main installation screen.
3. Click NEXT to continue installing the configuration program.
Liebert recommends using the default installation options, but you will be given the option to make
modifications to the standard entries.
The installation program will also install an Uninstaller program along with the UPS configuration
program.
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Configuration Program
8.3
Establishing Communication Link with the UPS
Use only the serial communication cable supplied with the configuration program. If an accessory
communication card has been installed in the UPS’s communication card slot, the option card must be
removed while using the configuration program.
Use the serial communication cable to connect your computer’s COM1 port to the DB-9 communica-
tion port on the rear of the UPS. COM2 may also be used. If the COM port of the host computer has
only a DB-25 pin connector, a DB-25 to DB-9 adapter must be added.
The program may be used while the UPS is on to read and confirm the current settings. The UPS
must be off and powered by the AC utility when using the configuration program to change any UPS
setting. Any attempt to change a setting while the UPS is on will result in an error message.
Select Lbt_gxt2.exe from the program group to start the configuration program. The program will
search COM1 & COM2 for a properly connected GXT 2U™ UPS. When the UPS is found, the opening
program window will display the UPS model.
If the configuration program ever fails in its attempt to read data from a UPS, the error message
below will be displayed. The program must communicate with the UPS when it first opens, when a
new tab is opened and when the REFRESH, APPLY or OK buttons are pressed.
If this message is displayed, check the following items:
1. Verify that the serial communication cable is connected properly.
2. Verify that the COM port being used is designated COM1 or COM2.
3. Verify that the UPS is either in Inverter mode, Bypass mode, Battery mode or Off with AC power
available at the input (AC Input indicator on). In all cases, the rear fan will be running.
4. Verify that the COM port is not in use by other UPS communication software (or non-UPS
software). If MultiLink UPS software is installed on the computer, the MultiLink service must be
stopped to free the COM port. MultiLink typically restarts automatically whenever the computer
restarts.
5. The UPS serial port is in use by an internal, optional communication card in the UPS card slot.
Remove the option card.
6. The program is connected to a UPS that was not designed for this program.
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Configuration Program
8.4
Configuration Program—Operation
8.4.1 Read/Confirm UPS Configuration Settings
The UPS settings may be monitored, but not changed, using the configuration program while the UPS
is operating in any mode. If the program is only used to read the present UPS settings, close the pro-
gram using the CANCEL button.
Mistakenly using the APPLY or OK button
will attempt to write data to the UPS and will
result in the error message shown at right if
the UPS is not off.
If this message is displayed and you do not
wish to change any settings, close this error
message and close the configuration program
using the CANCEL button.
If the UPS is off and you do not wish to risk changing any settings, close the program using the CAN-
CEL button. Do not use the APPLY or OK buttons in the configuration program.
8.4.2 Changing UPS Settings
UPS SETTINGS MAY ONLY BE CHANGED USING THE CONFIGURATION PROGRAM WHEN
THE UPS IS OFF AND NO POWER IS BEING DELIVERED TO THE LOAD. AC input power must
be available to power the UPS logic during programming. Only the AC Line indicator will be on indi-
cating utility input power.
To turn the UPS off to change configuration settings, press the UPS OFF/Bypass button twice within
four seconds (hold the button one second each time). This will disconnect all power to the load.
Changing any value or selecting/deselecting any setting in the configuration window will not immedi-
ately change the settings in the UPS. You may modify the displayed settings until you are satisfied
with the new proposed changes. Settings displayed by the configuration program can always be
restored to the existing values stored in the UPS by selecting the REFRESH key.
Values displayed will be transmitted to the UPS only
when either the APPLY or OK button is selected. The
APPLY button sends the new settings to the UPS without
closing the program. The OK button sends the new set-
tings and closes the program.
Whenever data is successfully transmitted to the UPS,
this message shown at right will be displayed.
8.4.3 Programming Rejected?
If the UPS appears to be off but this error
message is displayed when the APPLY or OK
button is selected to transmit settings, the
UPS may be in an intermediate standby con-
dition.
To confirm that the UPS is fully off, repeat the
turn off procedure. Press the UPS OFF/
Bypass button twice within four seconds (hold
the button one second each time).
8.4.4 Exit Without Changing UPS Settings
If you decide not to change the UPS after modifying the displayed settings, close the configuration
program using the Cancel button.
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Configuration Program
8.5
UPS Tab
When the program starts, the following window will open displaying the UPS model along with the
current UPS settings. This information can be updated at any time using the REFRESH button.
Figure 4 Factory default settings for 120VAC UPS
8.5.1 Output Voltage
The Output Voltage displayed is the nominal input/output voltage. This is not a voltmeter and will
display the nominal voltage whether the UPS is on or off. The drop down box will show the alternate
voltages available. Select the voltage that matches the nominal utility in your location.
8.5.2 Auto Restart
The UPS will provide computer grade power during power outages. If input power is unavailable for
an extended time, the UPS will shut down when batteries are depleted or a shutdown signal is sent by
the computer operating system to limit battery depletion (serial data or contact closure). If Auto
Restart is enabled (check mark in box), the UPS will restart when input power is restored. If the UPS
turns off power to the load for any other reason, manual restart is required (See 8.6 - Options Tab
for exceptions). Click on the box to remove the check mark and disable Auto Restart.
8.5.3 L-N Reverse Detection (120V UPS Models Only)
Proper wiring of the receptacle powering the UPS is critical for safety, EMI suppression and surge
suppression. The UPS checks the outlet when first plugged in. If the Line-Neutral is reversed or the
ground is missing, the UPS will not start. If a problem is detected after the UPS is started, the UPS
will continue to operate, but the AC Input indicator will flash. In some unique applications the user
may wish to disable this alarm. Except for special situations, improperly wired receptacles should be
immediately repaired before the UPS is put into service. Click on the box to remove the check mark
and disable this alarm.
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Configuration Program
8.5.4 Frequency Selection
The UPS is normally designed for 50Hz or 60Hz operation. The factory default corresponds to the
model. All models are capable of being used as 50Hz or 60Hz systems. The UPS will automatically
sense the utility frequency when first plugged in and set the nominal frequency to match. Therefore,
for all normal use the Auto Sense button should be selected.
Some special applications require that the UPS be used as a frequency converter. Frequency con-
verter 50Hz or frequency converter 60Hz may be selected.
Note that frequency converter operation disables the Bypass. If, for any reason, the UPS inverter is
unable to power the load, the alternate bypass to utility power will not be available and power will be
removed from any load.
8.6
Options Tab
Computer users may choose to use versatile com-
puter shutdown software that communicates
with the UPS via a serial communications cable.
The Options tab should not be used to modify the
UPS functions for such applications.
For some industrial applications and special
computer applications, the UPS may be moni-
tored and controlled using external voltages and
relay contact signals. The Options tab expands
the UPS versatility for such applications.
Refer to your UPS manual for a description of the
9-pin communication connector on the rear of the
UPS. Pin 6 of the 9-pin communication connector
is used for “Any Mode Shutdown” of the UPS out-
put. This control input may be used in special
applications to disable the UPS output power -
both Inverter and Bypass.
The Options tab allows the behavior of the Any
Mode Shutdown feature to be modified.
When the program opens or the REFRESH but-
ton is pressed, the UPS setting is read by the
configuration program and displayed.
Factory Default Setting Illustrated - This
Options tab illustration shows the available
function definitions using pin 6 and the factory
default settings.
WARNING
!
Auto-Enable Output
Note that when this option is selected and the UPS output is disabled using Pin 6, the UPS
output can turn on automatically and without warning if the Pin 6 connection is changed.
WARNING
!
Pin 6 Logic
DO NOT CHANGE THIS OPTION from the factory default setting unless you are ready to
install a normally-closed connection between Pins 5 & 6. This connection must be maintained
to use the UPS or to use the configuration program again, including the ability to change the
UPS setting back to the default setting using the configuration program via a serial
communication link.
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Configuration Program
8.7
Options Tab Used With Earlier GXT 2U Models
This version of the configuration program will accompany GXT 2U UPS models that support new pro-
gramming features accessible using the Options tab.
If version 1.6 (or later) is used with an earlier GXT 2U model (with an earlier UPS firmware version),
the Any Mode Shutdown features cannot be changed.
If the configuration program is used with an earlier UPS model (with an earlier UPS firmware ver-
sion) that does not support the modification of these settings, the Options tab will display a reminder
of the factory default settings, as shown. These cannot be changed.
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Configuration Program
8.8
Battery Tab
Factory default settings illustrated.
The boxes on the right show the available options using the drop-down selection boxes.
8.8.1 Low Battery Time Warning
The UPS will estimate remaining operating time when on batteries. A low battery alarm is activated
if the estimated time reaches the Low Battery Time. This may be changed to any value from 2 to 30
minutes.
8.8.2 Auto Battery Test Time
The UPS performs an automated battery test periodically, if enabled. The user may also select time
periods of 7, 14, 21 and 28 days.
8.8.3 Battery Cabinets Number
If additional batteries are attached to the UPS, accurate battery runtime estimates are possible if the
battery number and type of batteries are entered here. The new UPS models are designed to operate
with up to four external battery packs or four long runtime battery packs (not currently available).
8.8.4 Auto Battery Test
In some applications it may be preferable to disable the automated, periodic battery test. Click on the
box to remove the check mark and disable the periodic battery test.
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Controls and Indicators
9.0 CONTROLS AND INDICATORS
All indicators lit for illustrative purposes.
L1 L2
BYPASS
UPS ON
!
Vertical overlay
for tower
BATTERY
installation
AC INPUT
- +
UPStation GXT
Horizontal overlay for rack mounting
9.1
ON/Alarm Silence/Battery Test Button
This button controls output power to connected load(s) and has three functions:
• ON
• Alarm Silence
• Manual Battery Test
ON - Pressing this button will start up the UPS in order to provide conditioned and
protected power.
Alarm Silence - To silence alarms, press this button for at least one Second. After the
alarm is silenced, the UPStation GXT2-6000RT208 will reactivate the alarm system to
alert of additional problems.
NOTE
The LOW BATTERY and BYPASS reminder alarms CANNOT be silenced.
Manual Battery Test - To initiate a manual battery test, press the ON/Alarm Silence/Battery Test
button for at least one second while operating from utility power with no alarm conditions present.
• If only three of the five Battery indicators illuminate, allow the UPS to recharge the batteries for
24 hours.
• After 24 hours, retest the batteries.
• After the batteries have been retested, if only three of the five Battery indicators illuminate, con-
tact your local dealer, Liebert representative or Liebert Worldwide Support Group.
9.2
OFF/Bypass Button
This button controls output power to connected load(s) and has dual functions: OFF
and Bypass.
CAUTION
!
Pressing the OFF/Bypass button once will cause the load to be
transferred to bypass power. Pressing the OFF/Bypass button a second
time within 4 seconds will result in loss of power to the output
receptacles and connected loads. Perform all necessary shutdown
procedures on connected loads before pressing this button twice.
Pressing the OFF/Bypass button twice within 4 seconds shuts off power to the output receptacles and
connected loads, but the UPS’s circuits remain live, charging the unit’s battery.
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Controls and Indicators
9.3
9.4
L1 & L2 Load Level Indicators (Two Rows of Indicators: 4 Green, 1 Amber)
The Load Level indicators display the approximate electrical load placed upon both output legs of the
UPS at all times. Each indicator represents an approximate 25 percent increase in load. For optimum
utilization of the UPS, distribute L-N loads to approximately balance the loads on L1 and L2.
Battery Level Indicators (5 Green)
The Battery Level indicators display approximate battery capacity at all times. Each indicator repre-
sents an approximate 20 percent increase in battery capacity.
The UPStation GXT2-6000RT208 is equipped with automatic and remote battery test features. The
automatic test occurs every 14 days (this option is user-configurable) if utility has not been inter-
rupted. Should the battery fail this test, the red Fault indicator along with the A and C diagnostic
test feature functions with MultiLink 3 software and can remotely initiate the battery test.
9.5
9.6
9.7
Fault Indicator (Red)
The Fault indicator is illuminated if the UPS has detected a problem. Also, one or more of the Battery
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 the manual bypass function has been activated.
UPS ON Indicator (Green)
The UPS ON indicator is illuminated when the UPS inverter is operating and supplying power to
your connected loads.
9.8
9.9
Battery Indicator (Amber)
The Battery indicator is illuminated when the UPS is operating on battery.
AC Input Indicator (Green)
The AC Input indicator is illuminated when utility power is available and within the input specifica-
tions.
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Modes of Operation
10.0 MODES OF OPERATION
10.1 Normal Mode Operation
During normal operation, utility power provides energy to
the UPS. The filters, 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 Load Level indica-
tors display an approximate level of load in 25% increments.
If the UPS becomes loaded beyond full rating, the fifth
(amber) indicator will illuminate and the UPS will sound an
audible alarm. The display template indicates the percent-
age of load (see example at right) on the UPS output.
Normal Mode Operation
Batteries at 100% charge
L1 Load at 10%, L2 Load at 90%
10.2 Battery Mode Operation
Battery mode occurs in event of an extreme input voltage
condition or complete utility failure. The battery system
supplies power through the DC to 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 two beeps every 5 seconds when the battery runs
low (approximately 2 minutes remaining, but this is user
configurable). The AC Input indicator will extinguish and
the Battery indicator will illuminate to warn that a utility
problem has occurred. Each Battery Level indicator repre-
sents a 20% capacity level. As capacity decreases, fewer
indicators remain illuminated. Refer to 13.0 - Trouble-
shooting. For approximate battery run times, refer to
Table 7 - Battery run times. These times are approximate
Battery Mode Operation
Batteries at 30% charge
L1 Load at 60%, L2 Load at 60%
based on resistive load and an ambient temperature of 77°F (25°C). To increase this time, turn off
non-essential pieces of equipment (such as idle computers and monitors) or add the optional external
battery cabinet.
CAUTION
!
Turning OFF the UPS while in battery mode will result in loss of output power.
10.3 Battery Recharge Operation
Once utility power is restored, the UPS resumes normal operation. At this time, the Battery Charger
begins recharging.
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Communications
11.0 COMMUNICATIONS
11.1 Communications Interface Port
The UPStation GXT2-6000RT208 UPS has a standard DB-9 serial port female connector located on
the rear of the UPS unit. Several signals are provided on this port and are assigned as follows:
Table 3
DB-9 pin assignment
DB-9 Assignment Description
Pin
1
2
3
4
5
6
7
8
9
Low Battery (open collector)
UPS TxD (typically RS-232 levels)
UPS RxD (typically RS-232 levels)
Remote Shutdown (5-12VDC, 10-24mA max; battery operation)
Common
Remote Shutdown (short to pin 5); all modes of operation
Low Battery (open emitter)
Utility Fail (open emitter)
Utility Fail (open collector)
Pin Assignment
Collector to Emitter*
Open
Collector
6
7
8
9
(+)
(-)
330 Ohms
Open
Emitter
1
2
3
4
5
* Maximum voltage and current on pins 1, 7, 7 and 9 are 60VDC and 10.0 mA
11.1.1 DB-9 Interface Port
Using the following directions to attach the smaller enclosed ferrite
bead clamp to the communication cable as shown at right:
1. Open the ferrite bead.
2. Place the communication cable inside the ferrite bead groove.
3. Position the ferrite bead as close as possible to the end of the cable
that connects to the DB-9 connector of the UPS.
4. Close the ferrite bead so that the ferrite bead’s case snaps closed
with the cable routed through the ferrite bead’s case.
Run cable
through ferrite
bead case
11.1.2 Communications SNMP Web Card SNMP Adapter
Attach the larger enclosed ferrite bead clamp to the network
cable, see illustration at right, using the following directions:
1. Open the ferrite bead.
2. Place the network cable inside the ferrite bead groove.
3. Wrap the cable once around the ferrite bead.
4. Position the ferrite cable as close as possible to the end of
the cable that connects to the UPS.
5. Close the ferrite bead so that the ferrite bead’s case snaps
Wrap network
cable around
ferrite bead
closed with the cable routed through the ferrite bead’s case.
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Communications
11.2 Pin 4 - Remote Shutdown on Battery
1. This pin is functional only when the UPS is in battery mode. If the UPS is being powered by the
utility, Pin 4 will ignore any signal on this pin.
2. Pin 4 requires a 5-12 VDC signal to shutdown. This normally comes form the serial port using
Liebert’s contact closure cable. It cannot be used with just a contact closure unless the relay is
used to switch a voltage source. A 5-12 VDC signal for 1.5 seconds or greater is required to signal
a shutdown. Signals for less than 1.5 seconds will be ignored. After Pin 4 receives a shutdown
signal for 1.5 seconds, the command cannot be canceled.
3. A battery shutdown signal on Pin 4 will NOT cause an immediate Shutdown. A shutdown signal
will start a 2-minute shutdown timer. The timer cannot be stopped. After 2 minutes, the UPS will
shut down.
4. If the utility returns during the 2-minute timer countdown, the shutdown timer will continue
until the end of 2 minutes and the UPS will turn OFF. The UPS must remain OFF for at least 10
seconds even if AC input power Returns before the UPS turns OFF. This serves to reset and
restart the server.
Whether the UPS turns back ON when power is restored depends on the auto-restart setting: enabled
or disabled.
If the auto-restart is disabled, the UPS will not restart after performing the 2-minute shutdown
delay.
11.3 UPS Intelligent Communications
®
The UPStation GXT2-6000RT208 is equipped with an Intellislot port to provide advanced communi-
cation and monitoring options.
Liebert’s MultiLink software continually monitors the UPS and can shut down your computer or
server in the event of an extended power failure.
MultiLink can also be configured for use without the serial cable when the Intellislot SNMP/Web card
is installed in the UPS. Additionally, MultiLink can be configured to coordinate shutdown across the
network with other computers running MultiLink when you purchase a MultiLink License Kit. For
more information about the Intellislot SNMP/Web Card and MultiLink License Kits, visit our Web
Several option cards are available for use in the Intellislot port of the UPStation GXT2-6000RT208
The Intellislot SNMP/Web Card provides SNMP and Web-based monitoring and control of the UPS
across the network.
The Intellislot MultiPort 4 Card allows you to install MultiLink software on four computers and coor-
dinate shutdown in the event of a power failure.
The Intellislot Relay Card provides dry contact relay outputs for custom wired applications and deliv-
ers support for built-in shutdown for AS/400 systems.
CAUTION
!
To maintain safety (SELV) barriers and for electromagnetic compatibility, signal cables
should be segregated and run separate from all other power cables, where applicable.
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Communications
11.4 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 5 REPO switch connections
REPO Connection
REPO
as shipped
REPO connections
for normally open
switch system
REPO connections
for normally closed
switch system (fail-safe)
1
2
3
4
1
2
3
4
1
2
3
4
Key to REPO switch connections
1. 24 VDC
2. Sense
3. Sense
4. Ground
CAUTION
!
To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables should
be segregated and run separately from power cables.
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Maintenance
12.0 MAINTENANCE
The UPStation GXT2-6000RT208 requires very little maintenance. The batteries are valve-regulated,
non-spillable, flame retardant, lead acid and should be kept charged to obtain their design life. The
UPS continuously charges the batteries when connected to the utility supply.
When storing the UPS for any length of time, it is essential to plug the UPS in for at least 24 hours
every four to six months to ensure full recharge of the batteries. Failure to recharge the batteries peri-
odically will permanently degrade battery capacity.
The UPStation GXT2-6000RT208 is designed to allow the user to safely replace the internal batteries.
Read the safety cautions before proceeding. Contact your local dealer or Liebert representative to
obtain the appropriate replacement battery kit part number and pricing.
12.1 Battery Replacement
CAUTION
!
A battery can present a risk of electrical shock and high short circuit Current. The following
precautions should be observed before replacing the batteries:
• Remove rings, watches and other metal objects.
• Use a Phillips (crosshead) screwdriver with insulated grips.
• Do not lay tools or other metal objects on top of the batteries.
• If the battery replacement kit is damaged in any way or shows signs of leakage, contact
your local dealer or Liebert representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
12.1.1 Internal Battery Replacement Procedures
1. Gently remove the front plastic bezels cover
UPS
from the UPS by pulling forward.
2. Loosen the two captive screws on the front
battery door. Lay the battery door aside for
reassembly.
Battery
Liebert
!
3. Grasp the battery pack assembly and pull it out
of the front of the UPS. Be prepared to support
the weight of the battery as it is withdrawn.
Battery Cover
4. Unpack the new battery assembly taking care
not to destroy the packing. Compare new and
old battery assemblies to make sure they are the
STOP and contact your local dealer, Liebert
representative or the Liebert Worldwide
Support Group.
Battery Cover
Captive Screws
!
Front Bezels
5. Line up and slide in the new replacement
battery pack.
6. Reattach the front battery door, tightening the
two captive screws finger tight.
7. Reattach the front plastic bezels to the UPS.
NOTE
These are hot-swappable replacement batteries. However, caution should be exercised because
during this procedure the load is unprotected from disturbances and power outages.
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Maintenance
12.2 UPS Replacement
When using a power distribution box with bypass, the UPS can be removed while powering the load
through the Bypass Switch.
NOTE
During the procedure, the connected load will not be protected from power disturbances, such
as spikes, sags and failure.
To remove the UPS without shutting off power to the connected load:
1. Turn the Bypass Switch on the power distribution box to the Utility position.
2. Open the Output circuit breaker (on the UPS rear panel).
3. Open the Input circuit breaker (on the power distribution box).
4. Loosen the three captive mounting screws about
20 turns until the power distribution box can be
pulled away from the UPS.
5. Loosen the electrical connector cover by backing
out the two screws holding it one turn each. Also
loosen the end screw one turn.
6. Slide the cover to reach the end screw and cover
the electrical connectors; retighten the three
screws gently to hold the cover in place.
7. Replace the UPS.
8. Loosen the three screws holding the electrical
Mounting screws
connector cover again—one turn each.
for removable power
9. Slide the cover away from the electrical
connectors; gently retighten the three screws.
distribution box
10. Align the connectors on the power distribution
box and the UPS.
11. Push the power distribution box into place.
Screws securing electrical
connector cover
Electrical
connector
cover
12. Holding the power distribution box firmly
against the UPS, tighten the three captive
mounting screws until the box is secure. Do NOT
overtighten the screws.
13. Close the Input circuit breaker (on the power
distribution box).
14. Close the Output circuit breaker (on the UPS
rear panel).
15. Turn the Bypass Switch on the power
distribution box back to the UPS position.
Electrical connectors
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Troubleshooting
13.0 TROUBLESHOOTING
The information below indicates various symptoms a user may encounter in the event the UPStation
GXT2-6000RT208 develops a problem. Use this information to determine whether external factors
caused the problem and how to remedy the situation.
1. The Fault indicator will illuminate, indicating the UPS has detected a problem.
2. An alarm will sound, alerting that the UPS requires attention.
3. One or more additional Load Level/Battery Level indicators will be illuminated to provide a
diagnostic aid to the operator, as described below:
A
B
C
D
E
Fault
indicator
Battery
indicators
Load Level
indicators
AC Input
indicator
Bypass
indicator
Battery indicator
UPS ON indicator
Table 4
Fault indicators
Diagnosis/Audible alarm
Indicator status
All indicators
Indicator A
On bypass due to output overload; beep every half-second
On bypass due to overtemperature condition on L1; 1-second beep every 4 seconds
On bypass due to overtemperature condition on L2; 2-second beep every 4 seconds
On bypass due to DC bus overvoltage on L1; 1-second beep every 4 seconds
On bypass due to DC bus overvoltage on L2; 2-second beep every 4 seconds
Indicator B
Indicator C
Indicator D
Indicator E
On bypass due to control power supply failure on L1; 1-second beep every 4 seconds
On bypass due to control power supply failure on L2; 2-second beep every 4 seconds
On bypass due to PFC failure on L1; 1-second beep every 4 seconds
On bypass due to PFC failure on L2; 2-second beep every 4 seconds
On bypass due to inverter failure on L1; 1-second beep every 4 seconds
On bypass due to inverter failure on L2; 2-second beep every 4 seconds
Indicators A&B
Indicators A&C
Indicators A&D
Indicators B&C
Inverter-to-Inverter communications failure; half-second beep every 1 second
UPS failed battery test; 2-second beep every 60 seconds
L1 to L2 phase angle unacceptable
REPO is currently activated, UPS output cannot be started by any method
UPS is OFF due to previous REPO (REPO is no longer activated). Once utility power is
restored, press the OFF button twice within four seconds (to clear the alarm), then press the
ON button to start UPS (Auto-restart is NOT possible).
Indicators B&D
Indicators C&E
Indicators D&E
UPS shutdown due to command from communications (RS232 or SNMP); no beep
UPS is OFF due to charger overvoltage; 1-second beep every 4 seconds
AC Input indicator On &
Battery indicator Flashing
AC input has been applied to start UPS but the batteries are either missing or below the
minimal level to allow the UPS to start; continuous audible alarm
Bypass voltage is present, but is disabled for use because the voltage or frequency is outside
acceptable limits
Bypass indicator Flashing
Under fault conditions, the Fault indicators will be illuminated indefinitely while the battery charger
is operational, or for a maximum of 5 minutes while the battery charger is not operational.
If a problem persists, consult your local dealer, Liebert representative or contact the Liebert World-
wide Support Group. Please have the UPS model number and serial number available at the time of
your inquiry.
36
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Troubleshooting
All audible alarms can be silenced, with the exception of Low Battery, Bypass Reminder and Missing
Batteries at Startup alarms. Once silenced, the alarm will not sound again until a new alarm condi-
tion is present.
Table 5
Alarm conditions
Condition
Alarm
Battery Mode (utility failure)
Low Battery
One short beep every 10 seconds; more than 2 minutes of run time remaining
Two short beeps every 5 seconds; less than 2 minutes of run time remaining
A one-second beep every 2 minutes
On Bypass Reminder
Output Overload (bypass)
Overtemperature (bypass)
DC Bus Overvoltage (bypass)
Control Power Supply Failure (bypass)
PFC Failure (bypass)
One short beep every half second
A one-second, or two-second, beep every 4 seconds
A one-second, or two-second, beep every 4 seconds
A one-second, or two-second, beep every 4 seconds
A one-second, or two-second, beep every 4 seconds
A one-second, or two-second, beep every 4 seconds
Inverter Failure
Inverter-to-Inverter Communications
Failure
A one-half second beep every 1 second
Battery Test Failure
REPO Activated
A two-second beep every 1 minute
A one-quarter second beep every half second
Table 6
Troubleshooting guide
Problem
Cause
Solution
Ensure the UPS is OFF. Disconnect all loads and ensure
nothing is lodged in output receptacles.
Ensure the loads are not defective or shorted internally.
UPS fails to start when the
ON button is pressed.
UPS is short-circuited or
overloaded.
UPS is operating in Battery Mode, make certain UPS is
securely plugged into the wall receptacle.
UPS not plugged in.
UPS input protection fuse
has blown/opened.
UPS is operating in Battery Mode. Save data and close
applications. Replace UPS input fuse, then restart UPS.
Battery indicator is
illuminated.
UPS is operating in Battery Mode. Save data and close
applications. Ensure utility supply voltage is within
acceptable limits for UPS.
Utility voltage out of UPS
input range.
Batteries are not fully
charged.
Keep UPS plugged in continuously at least 24 hours to
recharge batteries.
UPS has reduced battery
time.
UPS is overloaded.
Check load level display and reduce the load on the UPS.
Replace batteries. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group for
replacement battery kit.
Batteries may not be able to
hold a full charge due to age.
Fault and Bypass indicators
and all Load Level indicators
are illuminated.
Check load level display and remove non-essential loads.
Recalculate the load and reduce number of loads
connected to UPS. Check load equipment for faults.
UPS overloaded or load
equipment is faulty.
Fault and Bypass indicators
and diagnostic indicator C are
illuminated.
UPS control power supply
fault.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Fault and Bypass indicators
and diagnostic indicator D are
illuminated.
UPS PFC (Power Factor
Correction Circuit) fault.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Ensure the UPS is not overloaded, ventilation openings
are not blocked and room ambient temperature is not
excessive.
Wait 30 minutes to allow UPS to cool, then restart UPS.
If UPS does not restart, contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
UPS internal fan has a
problem or UPS shutdown
due to temperature
condition. Load is on bypass
power.
Fault and Bypass indicators
and diagnostic indicator A are
illuminated.
37
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Troubleshooting
Table 6
Troubleshooting guide
Problem
Cause
Solution
Fault and Bypass indicators
and diagnostic indicator B are
illuminated.
UPS internal DC bus
overvoltage.
UPS requires service. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Fault and Bypass indicators
and diagnostic indicator E are
illuminated.
UPS requires service. Contact your local dealer, Liebert
Representative or the Liebert Worldwide Support Group.
UPS inverter fault.
Fault and Bypass indicators
and diagnostic indicators A
and B are illuminated.
Inverter-to-Inverter
Communications Failure
UPS requires service. Contact your local dealer, Liebert
Representative or the Liebert Worldwide Support Group.
Fault indicator and diagnostic
indicators A and C are
illuminated.
Replace batteries. Contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
UPS failed the battery test.
Only phase angles of 120, 180 or 240 degrees (±10
degrees) are permitted. These must be compatible with
the selections in the configuration program.
Or the phase angle has changed while the UPS was
running. The phase angle is detected at startup and
cannot be changed to a different power source while
running.
Turn the UPS Off and wait until the fans stop. Apply input
AC power. The UPS will reprogram the phase angle to
match the utility, if the utility is 120, 180 or 240 degrees
between L1 and L2. If this does not resolve the issue,
contact a qualified electrician to verify the site wiring.
Fault indicator and diagnostic
indicators A and D are
illuminated.
L1 to L2 phase angle
unacceptable.
Fault indicator and diagnostic
indicators B and C are
illuminated.
UPS has shut down due to the REPO (Remote Emergency
Power Off). The output cannot be started by any method.
REPO is currently activated.
UPS is OFF due to previous REPO (REPO is no longer
activated). Once utility power is restored, press the OFF
button twice within four seconds (to clear the alarm), then
Fault indicator and diagnostic
indicators B and D are
illuminated.
UPS output is OFF from a
previous REPO command.
REPO is no longer activated. press the ON button to start UPS (Auto-restart is NOT
possible).
Your UPS has received a signal or command from the
Fault indicator and diagnostic
indicators C and E are
illuminated.
UPS shutdown due to a
command from the
communications port(s).
attached computer. If this was inadvertent, ensure the
communication cable used is correct for your system. For
assistance, contact your local dealer, Liebert
representative or the Liebert Worldwide Support Group.
Fault indicator and diagnostic
indicators D and E are
illuminated.
UPS requires service. Contact your local dealer, Liebert
Representative or the Liebert Worldwide Support Group.
UPS charger fault.
Check battery connections, completely power down and
restart UPS.
NOTE: If the battery circuit opens while the UPS is
running, it will be detected when the next battery test is
performed.
AC Input indicator is On &
Battery indicator is flashing.
Battery source is not
available; continuous horn.
The AC input powers the PFC input and serves as the
bypass source. If the AC is present but the voltage or
frequency exceeds the acceptable range for safe
operation with a load, the bypass will be disabled and this
indicator will flash, indicating that the bypass is
unavailable.
Bypass voltage is present,
but is disabled for use
because the voltage or
frequency is outside
acceptable limits.
Bypass indicator is flashing.
38
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Troubleshooting
Using the configuration program, the user may specify the number of GXT2-144VBATT external bat-
tery cabinets attached to the UPS. The factory default is programmed for internal batteries only.
Table 7 shows estimated run times at different loads.
Table 7
Battery run times
6000VA Run Time
in Minutes
Battery/External Cabinets
Load%
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%
75
38
25
18
14
11
9
7
6
5
Internal Battery
156
90
62
44
34
28
23
19
16
14
235
137
99
74
58
47
39
33
28
25
313
183
133
103
82
67
55
47
41
36
391
229
166
129
105
87
73
63
54
47
Internal Battery + 1 External
Battery Cabinet
Internal Battery + 2 External
Battery Cabinets
Internal Battery + 3 External
Battery Cabinets
Internal Battery + 4 External
Battery Cabinets
39
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Troubleshooting
13.1 Auto-Learning Battery Run Times
As batteries age, the estimated run times may become less accurate. The GXT2-6000RT208 is pro-
grammed 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-dis-
charge 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 the
battery table on the right will be restored. This will override any value that is automatically learned.
40
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Specifications
14.0 SPECIFICATIONS
Table 8
UPS specifications
Model Number
GXT2-6000RT208
4200W/5200VA at 127/220 (120 or 240 degrees only)
4200W/5200VA at 120/208 (120 or 240 degrees)
4200W/6000VA at 120/240 (180 degrees)
4200W/6000VA at 115/230 (180 degrees only)
3780W/5400VA at 110/220 (180 degrees only)
3360W/4800VA at 100/200 (180 degrees only)
Model Rating
DIMENSIONS in (mm)
Unit W x D x H in. (mm)
Shipping W x D x H in. (mm)
WEIGHT lbs (kg)
6.9 x 24.2 x 16.9 (176 x 615 x 430)
13.2 x 27.8 x 20.9 (335 x 705 x 530)
Unit
67 (30.3)
Shipping
76.3 (34.6)
INPUT AC PARAMETERS
Nominal Operating Frequency
Factory Default VAC
50 or 60 Hz (Factory Default = 60)
120/208 VAC at 120 degrees
L1-L2 Factory Default Input Phase
Angle
120 degrees
120, 180, 240 degrees, Auto-sensing on application of AC
(Restrictions for L-N voltages other than 120 VAC)
Allowable Input Phase Angle
Factory Default L1-N, L2-N VAC
User Configurable L1-N, L2-N VAC
120 VAC nominal
100/110/115/120/127 VAC (May be modified using configuration program)
L1-N, L2-N, Operating Voltage Range Without Battery Operation (Except 100 VAC L-N Operation)
100% - 90% loading
90% - 70% loading
70% - 30% loading
30% - 0% loading
90 VAC - 140 VAC
80 VAC - 140 VAC
70 VAC - 140 VAC
60 VAC - 140 VAC
L1-N, L2-N, Operating Voltage Range Without Battery Operation (100 VAC L-N Operation)
100% - 70% loading
70% - 30% loading
80 VAC - 140 VAC
70 VAC - 140 VAC
60 VAC - 140 VAC
150 VAC
30% - 0% loading
L1-N, L2-N Max. Allowable VAC
Input Frequency w/o Battery
Operation
40 - 70 Hz
Input Power Connection
OUTPUT AC PARAMETERS
Factory Default VAC
See Distribution Box Options
120/208 VAC @ 120 degrees
120 degrees
L1-L2 Factory Default
Output Phase Angle
Allowable Output Phase Angle
Factory Default L1-N, L2-N VAC
User Configurable L1-N, L2-N VAC
Output Connections
120, 180, 240 degrees Auto-sensing on initial application of input AC
120 VAC nominal
100/110/115/120/127 VAC, ±3%
See Distribution Box Options
Frequency
50 Hz or 60 Hz, Nominal
Waveform
Sinewave
Main Mode Overload
200% for 8 cycles; 130% for 10 seconds with transfer to bypass
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
41
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Specifications
Table 8
UPS specifications (continued)
Model Number
GXT2-6000RT208
ENVIRONMENTAL
Operating Temp
Storage Temp
+32°F to +104°F (0°C to +40°C)
+5°F to +122°F (-15°C to +50°C)
0% to 95%, non-condensing
Relative Humidity
Operating Elevation
Storage Elevation
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
50,000 ft. (15,000 m) maximum
<55 dBA, at 1 meter from the rear
<50 dBA, at 1 meter from the front or sides
Audible Noise
AGENCY
Safety
RFI/EMI
UL 1778, c-UL Listed (Suitable for computer room applications)
FCC Part 15, Subpart B, Class A
Surge Immunity
Transportation
IEEE/ANSI C62.41 Category A & B
ISTA Procedure 1A
Table 9
Battery specifications
Model Number
DIMENSIONS in (mm)
Shipping W x D x H in. (mm)
WEIGHT lbs (kg)
GXT2-144BATKIT
13.4 x 27.2 x 13.4 (340 x 690 x 340)
Unit
Shipping
Type
79 (35.8)
84 (38.1)
Valve-regulated, non-spillable, flame retardant, lead acid
12 x 12V x 9.0 AH
Quantity x V x Rating
Battery Mfg / Part #
Back-Up Time
Yuasa / REW 45-12 FR
6 Hours to 90% capacity after full discharge into 100% load
Recharge Time
Table 10 Power distribution box specifications
Model Number
Amp Rating
PD-HDWR
24 Amps
Input Power Connection
Output Power Connection
Input Branch Circuit Breaker
4-Wire Hardwired, 8-10AWG
4-Wire Hardwired, 8-10AWG
30 Amp, Supplied by User
Model Number
Amp Rating
PD-HDWR-MBS
24 Amps
Input Power Connection
Output Power Connection
4-Wire Hardwired, 8-10AWG
4-Wire Hardwired, 8-10AWG
Includes:
Manual Bypass Switch with Indicator Lamps
30 Amp, Supplied by User
Input Branch Circuit Breaker
Model Number
Amp Rating
PD-001
24 Amps
Input Power Connections
Output Power Connection
L14-30P on 10 foot cord
L1-L2-G
L1-L2-N-G
(1) L6-30R on a 300mm cord
(1) L14-30R on a 300mm cord
L1-N-G (2) 5-15/20R, T-type, receptacles with (2) 20A circuit breakers
L2-N-G (2) 5-15/20R, T-type, receptacles with (2) 20A circuit breakers
Manual Bypass Switch with Indicator Lamps
Includes:
Input Branch Circuit Breaker
30 Amp, Supplied by User
42
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Specifications
Table 11
External battery cabinet specifications
Model Number
GXT2-144VBATT
GXT2-6000RT208
Used w/ UPS Model
DIMENSIONS in (mm)
Unit (with bezel) W x D x H
Shipping W x D x H
WEIGHT lbs (kg)
Unit
3.5 x 24.2 x 17 (87 x 618 x 430)
10.5 x 27.2 x 23 (268 x 692 x 585)
93.6 (42.5)
105 (47.6)
Shipping
BATTERY PARAMETERS
Type
Valve-regulated, non-spillable, flame retardant, lead acid
12 x 12V x 9.0 AH
Qty x V x Rating
Battery Mfg / Part #
Back-Up Time
Yuasa / REW 45-12 FR
ENVIRONMENTAL
Operating Temp
Storage Temp
+32°F to +104°F (0°C to +40°C)
+5°F to +122°F (-15°C to +50°C)
Relative Humidity
Operating Elevation
Storage Elevation
AGENCY
0% to 95%, non-condensing
Up to 10,000 ft. (3000m) at 104°F (40°C) without derating
50,000 ft. (15,000m) maximum
Safety
UL 1778, c-UL Listed (Suitable for computer room applications)
FCC Part 15, Subpart B, Class A
RFI/EMI
Transportation
ISTA Procedure 1A
14.1 Product Warranty Registration
To register for warranty protection:
• Visit the Quick Links section of our Web site at:
• Click on Product Warranty Registration and fill in the form.
If you have any questions, please contact us at:
US: 800-222-5877
Outside the US: 614-841-6755
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Specifications
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POWER AVAILABILITY
™
GXT2-6000RT208
USER MANUAL
The Company Behind the Products
Technical Support/Service
Web Site
With over a million 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:
Monitoring
800-222-5877
Outside the US: 614-841-6755
•
•
•
Environmental systems—close-control air
conditioning from 1 to 60 tons
Single-Phase UPS
800-222-5877
Power conditioning and UPS with power
ranges from 300 VA to more than 1000 kVA
Integrated systems that provide both
environmental and power protection in a
single, flexible package
Monitoring and control—from systems of any
size or location, on-site or remote
Service and support through more than 100
service centers around the world and a 24/7
Customer Response Center
Outside the US: 614-841-6755
Three-Phase UPS
800-543-2378
•
•
Environmental Systems
800-543-2778
Outside the United States
614-888-0246
While every precaution has been taken to ensure
the 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.
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Italy
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD)
+39 049 9719 111
© 2003 Liebert Corporation
All rights reserved throughout the world.
Specifications subject to change without notice.
® Liebert and the Liebert logo are registered
trademarks of Liebert Corporation. All names
referred to are trademarks or registered
trademarks of their respective owners.
Fax: +39 049 5841 257
Asia
23F, Allied Kajima Bldg.
138 Gloucester Road
Wanchai
Hong Kong
+852 2 572 2201
Fax: +852 2 831 0114
SL-23170 (8/03) Rev. 0
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