Liebert gxt2u User Manual

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PRODUCT

AC Power Systems For Business-Critical Continuity™

Liebert® GXT2U

™

User Manual - 120V, 500-3000VA

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TABLE OF CONTENTS

1.0 GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . 3

2.0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0 MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Transient Voltage Surge Suppression (TVSS)

and EMI/RFI Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Rectifier/Power Factor Correction (PFC) Circuit . . . . . . 5

3.3 Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.4 Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.5 DC to DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.7 Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.8 Liebert GXT2U, Rear View . . . . . . . . . . . . . . . . . . . . . . . 7

4.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Tower UPS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3 Rack-Mount UPS Conversion and Installation . . . . . . . 9

4.4 External Battery Cabinet Installation . . . . . . . . . . . . . 13

5.0 CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . 14

5.1 ON/Alarm Silence/Manual Battery Test Button . . . . . 14

5.2 Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . 15

5.3 Load/Battery Level Indicators (4 Green, 1 Amber) . . . 15

5.4 Fault Indicator LED (Red). . . . . . . . . . . . . . . . . . . . . . . 15

5.5 Bypass Indicator LED (Amber) . . . . . . . . . . . . . . . . . . . 15

5.6 UPS ON Indicator LED (Green) . . . . . . . . . . . . . . . . . . 15

5.7 Battery Indicator LED (Amber). . . . . . . . . . . . . . . . . . . 15

5.8 AC Input Indicator LED (Green). . . . . . . . . . . . . . . . . . 16

5.9 Output Voltage Selection . . . . . . . . . . . . . . . . . . . . . . . . 16

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6.0 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . 17

6.1 Normal Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . 17

6.2 Bypass Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.3 Battery Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . 18

6.4 Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.0 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.1 Communications Interface Port. . . . . . . . . . . . . . . . . . . 19

7.2 Pins 4 & 5 - Remote Shutdown on Battery . . . . . . . . . . 20

7.3 Pins 5 & 6 - Any-Mode Shutdown . . . . . . . . . . . . . . . . . 21

7.3.1 Auto-Enable Output . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7.3.2 Pin 6 Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7.4 UPS Intelligent Communications . . . . . . . . . . . . . . . . . 22

8.0 CONFIGURATION PROGRAM . . . . . . . . . . . . . . . . . . . . 23

8.1 Liebert GXT2U Configuration Program Abilities . . . . 23

8.1.1 What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.1 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

9.1.1 Internal Battery Replacement Procedures . . . . . . . . 25

9.2 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

10.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . 27

11.0 S

PECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

12.0 BATTERY CABINET SPECIFICATIONS . . . . . . . . . . . . . . 34

13.0 B

14.0 P

ATTERY RUN TIMES. . . . . . . . . . . . . . . . . . . . . . . . . 35

RODUCT WARRANTY REGISTRATION. . . . . . . . . . . . . 36

TABLES

Table 1 Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 2 Alarm conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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IMPORTANT SAFETY INSTRUCTIONS

WARNING

Opening or removing the cover may expose you to lethal voltages within this unit even when it is apparently not operating and the input wiring is disconnected from the electrical source. Observe all cautions and warnings in this manual. Failure to do so MAY result in serious injury or death. Refer all UPS and battery service to qualified service personnel. Do not attempt to service this product yourself. Never work alone.

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions. Read all safety, installation, and operating instructions before operating the Uninterruptible Power System (UPS). Adhere to all warnings on the unit and in this manual. Follow all operating and user instructions. Individuals without previous training can install and operate this equipment.

It is not intended for use with life support and other designated “critical” devices. Maximum load must not exceed that shown on the UPS rating label. The UPS is designed for data processing equipment. If uncertain, consult your local dealer or Liebert representative.

This UPS is designed for use on a properly grounded (earthed), 50 Hz or 60Hz, 120V supply (programmable for 100, 110, 115, 120 and 127VAC output). Installation instructions and warning notices are located in this manual.

ELECTROMAGNETIC COMPATIBILITY—The Liebert GXT2U™ 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. Operating this device in a residential area is likely to cause harmful interference that users must correct at their own expense.

Operate the UPS in an indoor environment only in an ambient temperature range of 32°F to +104°F (0°C to +40°C). Install it in a clean environment, free from moisture, flammable liquids, gases and corrosive substances.

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This UPS contains no user serviceable parts except the internal battery pack. The UPS ON/Standby push buttons do not electrically isolate internal parts. Under no circumstances attempt to gain access internally other than to replace the batteries due to risk of electric shock or burn. Do not continue to use the UPS if the front panel indications are not in accordance with these operating instructions or if the UPS performance alters in use. Refer all faults to your local dealer, Liebert representative or the Liebert Worldwide Support Group.

Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from the batteries. PROPER DISPOSAL OF BATTERIES IS REQUIRED. REFER TO YOUR LOCAL LAWS AND REGULATIONS FOR BATTERY DISPOSAL REQUIREMENTS.

Never block or insert any object into the ventilation holes or other openings of the UPS.

DO NOT CONNECT equipment that could overload the UPS or demand half-wave rectification from the UPS, for example: electric drills, vacuum cleaners, laser printers or hairdryers.

Storing magnetic media on top of the UPS may result in data loss or corruption.

Turn the UPS off and isolate the UPS before cleaning; use only a soft cloth, never liquid or aerosol cleaners. Keep the front and rear vents free of dust accumulation that could restrict airflow.

When replacing batteries, replace with the same Liebert authorized replacement battery kits.

CAUTION

Do not dispose of battery or batteries in a fire. The battery may explode.

Do not open or mutilate the battery or batteries. Released electrolyte is harmful to skin and eyes. It may be toxic.

CAUTION

A battery can present a risk of electrical shock and high short circuit current. The following precautions should be observed when working on batteries:

• Remove watches, rings, and other metal objects.

• Use tools with insulated handles.

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1.0 GLOSSARY OF SYMBOLS

Risk of electrical shock

Indicates caution followed by important instructions

AC input

AC output

Glossary of Symbols

Requests the user to consult the manual

Indicates the unit contains a valve-regulated lead acid battery

Recycle

DC voltage

Equipment grounding conductor

Bonded to ground

AC voltage

Standby

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Introduction

2.0 INTRODUCTION

Congratulations on your choice of the Liebert GXT2U™ 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 Liebert GXT2U protects equipment from these disturbances.

The Liebert GXT2U comes in nominal power ratings of 500, 700, 1000, 1500, 2000 and 3000 VA. Complete model specifications appear at the end of this manual.

The Liebert GXT2U is a compact, “on-line” UPS. An on-line UPS continuously conditions and regulates its output voltage, whether utility power is present or not. It supplies connected equipment with clean sinewave power. Sensitive electronic equipment operates best from sinewave power.

For ease of use, the Liebert GXT2U features a light-emitting diode (LED) display to indicate either load percentage or battery capacity depending upon the mode of operation. It also provides self-diagnostic tests, a combination ON/Alarm Silence/Manual Battery Test button, a Standby button, user configurable program, and two levels of alarms when the unit is operating on battery.

The Liebert GXT2U 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. Liebert MultiLink software can also remotely control UPS operation.

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3.0 MAJOR COMPONENTS

Major Components

Input Output

TVSS & EMI/RFI

Filters

Battery

Charger

Rectifier

/PFC

Dynamic

Bypass

DC to DC

Converter

Battery

Inverter

3.1 TRANSIENT VOLTAGE SURGE SUPPRESSION (TVSS)

AND EMI/RFI FILTERS

These UPS components provide surge protection and filter both electromagnetic interference (EMI) and radio frequency interference (RFI). They minimize any surges or interference present in the utility line and keep the sensitive equipment protected.

3.2 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 Liebert GXT2U.

3.3 INVERTER

In normal operation, the inverter utilizes the DC output of the power factor correction circuit and inverts it into precise, regulated sinewave AC power. Upon a utility power failure, the inverter receives its required energy from the battery through the DC to DC converter. In both modes of operation, the UPS inverter is on-line and continuously generating clean, precise, regulated AC output power.

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Major Components

3.4 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 Liebert GXT2U is plugged in, even when the UPS is not turned on.

3.5 DC TO DC CONVERTER

The DC to DC converter utilizes energy from the battery system and raises the DC voltage to the optimum operating voltage for the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus increasing reliability.

3.6 BATTERY

The Liebert GXT2U utilizes valve-regulated, nonspillable, 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.

3.7 DYNAMIC BYPASS

The Liebert GXT2U 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 LED (other LEDs may be illuminated to indicate the diagnosed problem). To manually transfer the connected load from the inverter to bypass, press the Standby button once.

NOTE

The bypass power path does NOT protect the connected equipment from disturbances on the utility supply.

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3.8 LIEBERT GXT2U, REAR VIEW

Major Components

DB-9 Communications Port

External Battery Connector

Rev. USBCARD

USB card being fitted in Liebert IntelliSlot

Port

Cooling Fan

Input Fuse/ Circuit Breaker

Output Receptacles

Support Base

AC Input

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Installation

4.0 INSTALLATION

4.1 PREPARATION

1. Visually inspect the UPS for freight damage. Report damage to

the carrier and your local dealer or Liebert representative.

CAUTION

The UPS is heavy (see 11.0 - Specifications). Take proper precautions when lifting or moving it.

2. Decide where to place the Liebert GXT2U. Install the UPS indoors

in a controlled environment, where it cannot be accidentally turned off. Place it in an area of unrestricted airflow around the unit, away from water, flammable liquids, gases, corrosives, and conductive contaminants. Maintain a minimum clearance of 4 in. (100mm) in the front and rear of the UPS. Maintain an ambient temperature range of 32°F to 104°F (0°C to 40°C).

NOTE

UPS operation in temperatures above 77°F (25°C) reduces battery life.

3. The Liebert GXT2U may be installed in either a tower

configuration or in a rack, depending on available space and use considerations. Determine the type of installation and follow the appropriate instructions in either 4.2 - Tower UPS Installation or 4.3 - Rack-Mount UPS Conversion and Installation.

4.2 TOWER UPS INSTALLATION

When using the Liebert GXT2U in a tower configuration, use the included support base (shown below, left) to stabilize the UPS.

If any battery cabinets are added, they will include spacers to accommodate the additional cabinets (shown below, right).

Support base Spacers added to support

base to accommodate

additional battery cabinets

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Installation

4.3 RACK-MOUNT UPS CONVERSION AND INSTALLATION

NOTE

When rack mounted, the UPS must be supported by a shelf, brackets or slide rails on each side. The rack mount handles WILL NOT support the weight of the UPS. They are used to move the UPS into and out of the rack.

1. For slide rail installations, first remove the top/side fin. Slide the

top/side fin forward, then lift it up to remove. If desired, install the optional rack mount handles that were shipped with the UPS.

UPStation GXT

–

AC INPUT BATTERY UPS ON BYPASS

Optional rack mount handles

Securing hardware and slide rails are sold separately. Contact your local dealer or Liebert representative for these additional options and any assistance needed.

2. Unpack the two (2) rack-

mounting bracket assemblies and mounting hardware from the rack-mounting kit (P/N: RMKIT18-32). Bracket assemblies are interchangeable between left-hand or right-hand. Remove inner member of each bracket assembly as shown at right by extending it to its outermost position, depressing the retaining latch and then pulling inner member from bracket assembly.

Retaining latches

Inner members

Return flanges

Rear members

Front members

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Installation

3. Determine the height position inside the rack enclosure where you

want to mount the UPS or battery cabinet.

CAUTION

Reduce risk of tipping the rack enclosure by placing UPS or battery cabinet in the lowest possible rack position.

Install rear member of each bracket assembly into rack enclosure with two (2) M5

Front rack mounting rails

M5 screws

screws provided in this kit. (See figure at right.) Return flanges on bracket assembly fit to the inside of rack mounting rails. Insert screws loosely (finger-tight) into top and bottom holes of return flange on rear member. Extend bracket assembly by sliding front member for-

M5 screws

Rear rack mounting rails

ward until it touches the front rack mounting rail. Insert two (2) M5 screws loosely (finger-tight) into top and bottom holes of return flange on each front member. Make sure bracket assemblies are at the same mounting height on all four (4) rack mounting rails.

4. Locate eight (8) M4 screws

and eight (8) M4 nuts from

M4 nuts

M4 screws

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 nut and screw completely to assure locking action. Fasten rear member and front member together using four (4) screws and four (4) nuts

18" rack depth

M4 nuts

per bracket assembly as shown in the figures at right. For maximum support, locate fasteners for each bracket assembly as far apart as possible, depending on rack depth, while still

32" rack depth

joining both members (See figures at right). Check alignment of bracket assemblies and TIGHTEN ALL SCREWS FROM STEPS 3 and 4.

M4 screws

M4 nuts

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