POWER AVAILABILITY
GXT2-6000RT230™ & GXT2-4500RT230™
USER MANUAL
230VAC
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.0 SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters. . . . . . . . . . . . . . . . . . . . 4
2.2 Rectifier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 DC-to-DC Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.7 Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.0 MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1 Main Frame and Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Internal Battery Packs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Removable Power Distribution Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 WHAT’S INCLUDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5.0 INSTALLATION AND CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.1 Install the Main Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1.1 Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1.2 Rack-Mount UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1.3 Installing the Adjustable Rack-Mount Kit—Sold Separately . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Connect the Internal Batteries Using the External Connector . . . . . . . . . . . . . . . . . . . . . . . 14
5.3.1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Connect Input/Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.1 Distribution Box Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.0 INITIAL START-UP AND ELECTRICAL CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7.0 CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
7.1 GXT2-6000RT230 and GXT2-4500RT230 Configuration Program Features . . . . . . . . . . . . 17
7.1.1 What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.0 CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.1 ON/Alarm Silence/Manual Battery Test Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.2 Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.3 Load Level Indicators (4 Green, 1 Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.4 Battery Level Indicators (5 Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.5 Fault Indicator LED (Red) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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8.6 Bypass Indicator LED (Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.7 UPS ON Indicator LED (Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.8 Battery Indicator LED (Amber). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.9 AC Input Indicator LED (Green). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.0 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
9.1 Normal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9.2 Battery Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9.3 Bypass Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9.4 Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.0 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
10.1 Communications Interface Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 10.2 Pin 4 - Remote Shutdown on Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 10.3 UPS Intelligent Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 10.4 Remote Emergency Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
11.1 Internal Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
11.1.1 Internal Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
11.2 AC Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.2.1 PD-CEHDWR—Manual Bypass Switch Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
12.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
12.0.1 Auto-Learning Battery Run Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
13.0 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
FIGURES
Figure 1 GXT2, front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2 GXT2, rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 3 Internal battery pack with connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4 Power distribution boxes, basic, optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 5 Tower-use support bases, spacers for external battery cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 6 Distribution box electrical connections diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TABLES
Table 1 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 2 DB-9 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 3 Indicator meanings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 4 Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 5 Alarm conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 6 Battery run times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Table 7 UPS specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table 8 Power distribution specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Table 9 External battery cabinet specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This Manual Contains Important Safety Instructions. Read all safety and operating instructions before operating the Uninterruptible Power Supply (UPS). Adhere to all warnings on the unit and in this manual. Follow all operating and user instructions. This equipment can be operated by individuals without previous training.
This product is designed for Commercial/Industrial use only. 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 dealer.
See Limited Warranty.
This UPS is designed for use on a properly earthed (grounded), 220-240 VAC, 50Hz or 60Hz supply, for installation by qualified personnel. A qualified electrician must review and approve customer supplied wiring, circuit breakers, intended loads, and verify correct input, output and earth connections to ensure compliance with technical standards and local electrical codes of practice. Installation instructions and warning notices only for use by qualified personnel are located after the UPS operator instructions in this manual.
! WARNING
This UPS should not be supplied from electrical power systems of the “IT” (Impédance à Terre) type. (IEC 364-ELECTRICAL INSTALLATION OF BUILDINGS)
ELECTROMAGNETIC COMPATIBILITY—This UPS complies with the requirements of the EMC Directive 89/336/EEC and the published technical standards. Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved accessories only.
! WARNING
This is a product for restricted sales distribution to informed partners. Installation restrictions or additional measures may be needed to prevent radio interference.
Operate the UPS in an indoor environment only in an ambient temperature range of 0-40°C (32-104°F). Install it in a clean environment, free from moisture, flammable liquids, gases and corrosive substances.
This UPS contains no user serviceable parts. The UPS ON/OFF push buttons do not electrically isolate internal parts. Under no circumstances attempt to gain access internally, due to the 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 the UPS performance alters in use. Refer all faults to your dealer.
Only trained engineers authorized by Liebert should perform troubleshooting. To replace batteries, refer all servicing to qualified service personnel. Proper disposal of batteries is required. Refer to your local laws and regulations for disposal requirements.
Never block or insert any object into the ventilation holes or other openings.
DO NOT CONNECT equipment that could overload the UPS or demand DC current from the UPS, for example: electric drills, vacuum cleaners, laser printers, hairdryers or any appliance using half wave rectification.
Storing magnetic media on top of the UPS may result in data loss or corruption.
Turn the off UPS and isolate the UPS before cleaning. Use only a soft cloth, never liquid or aerosol cleaners.
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GLOSSARY OF SYMBOLS
Risk of electrical shock
!Indicates caution followed by important instructions
AC input
AC output
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Requests the user to consult the manual
- |
+ |
Indicates the unit contains a valve-regulated lead acid battery |
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PbH2SO4 |
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RRecycle
DC voltage
Equipment grounding conductor
Bonded to ground
AC voltage
ON/Alarm Silence/Battery Test
OFF/Bypass
Indicates the position of a fuse
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Introduction
1.0INTRODUCTION
Congratulations on your choice of the Liebert UPStation GXT2-6000RT230 and GXT2-4500RT230 Uninterruptible Power System (UPS). It provides conditioned power to microcomputers and other sensitive electronic equipment.
Upon generation, AC power is clean and stable. However, during transmission and distribution it may be subject to voltage sags, spikes, or complete power failure that may interrupt computer operations, cause data loss, or even damage equipment. The UPStation GXT2 protects equipment from these disturbances.
The UPStation GXT2 comes in nominal power ratings of 4500 VA and 6000 VA. Complete model specifications appear at the end of this manual.
The UPStation GXT2 is a compact, on-line UPS. An on-line UPS continuously conditions and regulates its output voltage, whether mains power is present or not. It supplies connected equipment with clean sinewave power. Sensitive electronic equipment operates best from sinewave power.
For ease of use, the UPStation GXT2 features a light-emitting diode (LED) display to indicate both load percentage and battery capacity. It also provides self-diagnostic tests, a combination ON/Alarm Silence/Manual Battery Test button, a Standby button, user configurable program, and two levels of alarms when the unit is operating on battery.
The UPStation GXT2 has an interface port for communication between the UPS and a network server or other computer systems. This port provides detailed operating information including voltages, currents, and alarm status to the host system when used in conjunction with Liebert MultiLink™ software. MultiLink software can also remotely control UPS operation.
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System Description
2.0SYSTEM DESCRIPTION
Input |
Output |
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Dynamic |
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Bypass |
L1 |
TVSS & |
Rectifier |
L1 |
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/PFC |
Inverter |
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EMI/RFI |
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Filters |
DC-to-DC |
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Converter |
N |
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Battery |
Charger |
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Battery |
G
2.1Transient Voltage Surge Suppression (TVSS) and EMI/RFI Filters
These UPS components provide surge protection and filter both electromagnetic interference (EMI) and radio frequency interference (RFI). They minimize any surges or interference present in the mains line and keep the sensitive equipment protected.
2.2Rectifier/Power Factor Correction (PFC) Circuit
In normal operation, the rectifier/power factor correction (PFC) circuit converts mains AC power to regulated DC power for use by the inverter while ensuring that the waveshape of the input current used by the UPS is near ideal. Extracting this sinewave input current achieves two objectives:
•The mains power is used as efficiently as possible by the UPS.
•The amount of distortion reflected on the mains is reduced.
This results in cleaner power being available to other devices in the building not being protected by the UPStation GXT2.
2.3Inverter
In normal operation, the inverter utilizes the DC output of the power factor correction circuit and inverts it into precise, regulated sinewave AC power. Upon a mains power failure, the inverter receives its required energy from the battery through the DC to DC converter. In both modes of operation, the UPS inverter is on-line and continuously generating clean, precise, Regulated Ac Output Power.
2.4Battery Charger
The battery charger utilizes energy from the mains power and precisely regulates it to continuously float charge the batteries. The batteries are being charged whenever the UPStation GXT2 is connected to mains power.
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System Description
2.5DC-to-DC Converter
The DC to DC converter utilizes energy from the battery system and raises the DC voltage to the optimum operating voltage for the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus increasing reliability.
2.6Battery
The UPStation GXT2 utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery design life, operate the UPS
in an ambient temperature of 20°C to 25°C (68°F to 77°F). Optional external battery cabinets are available to extend battery run times.
2.7Dynamic Bypass
The UPStation GXT2 provides an alternate path for mains power to the connected load in the unlikely event of a UPS malfunction. Should the UPS have an overload, overtemperature, or UPS failure condition, the UPS automatically transfers the connected load to bypass. Bypass operation is indicated by an audible alarm and illuminated amber Bypass LED (other LEDs may be illuminated to indicate the diagnosed problem). To manually transfer the connected load from the inverter to bypass, press the Standby button once.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances in the mains supply.
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Major Components
3.0MAJOR COMPONENTS
The GXT2 is composed of three major assemblies to provide easier handling, installation, and versatility.
3.1Main Frame and Electronics
This 5U cabinet is shipped with internal batteries installed and a basic, hardwire distribution box attached and ready to install.
Figure 1 GXT2, front view
Top Trim (2 pieces; tower use only)
Status
Indicators
& Controls
Lower Bezel &
Battery Access
Door
!
UPStation GXT
Upper
Bezel 
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Major Components
Figure 2 GXT2, rear view
Battery
Disconnect
External Battery |
Fans |
Connector |
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UPS Output
Circuit Breaker
DB-9 |
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Communication |
REPO Connector |
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Port |
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Relay Card Slot |
Removable Power
Distribution Box
Serial Card Slot
(SNMP, OCWEB, USB)
3.2Internal Battery Packs
The UPS has two internal battery packs behind a battery access door on the front of the unit. Each pack is fitted with a connector to link to the UPS.
Figure 3 Internal battery pack with connector
7
Major Components
3.3Removable Power Distribution Box
The UPS arrives with a basic hardwire power distribution pack installed. This box always contains the UPS input circuit breaker.
Optional versions may be available to replace the standard box for custom installations.
Figure 4 Power distribution boxes, basic, optional
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Basic Hardwire Power Distribution Box |
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Optional Hardwire Power Distribution |
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PD-CEHDWR |
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Box with Maintenance Bypass Switch |
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PD-CEHDWRBYP |
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NOTE
Hardwire and hardwire/receptacle boxes that include a manual bypass switch allow AC power to continue to flow from the mains input to the load while the box is removed from the UPS. For details, refer to 11.2 - AC Power Connections.
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