Liebert UPStation GXT 2U Manuale utente

AC Power Systems

For Business-Critical Continuity™

Liebert®GXT2U™

User Manual - 120V, 500-3000VA

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PRODUCT

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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 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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

13.0 BATTERY RUN TIMES . . . . . . . . . . . . . . . . . . . . . . . . . 35

14.0 PRODUCT WARRANTY REGISTRATION. . . . . . . . . . . . . 36

TABLES

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

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

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IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions. Read all safety,

installation, and operating instructions before operating the Uninter-

ruptible 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 “criti-

cal” 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), 50Hz

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 fol-

lowing two conditions: (1) This device may not cause harmful interfer-

ence, 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 tem-

perature 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 corro-

sive substances.

!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.

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This UPS contains no user serviceable parts except the internal bat-

tery pack. The UPS ON/Standby push buttons do not electrically iso-

late 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 indi-

cations 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 unau-

thorized 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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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

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™ Uninterrupt-

ible Power System (UPS). It provides conditioned power to microcom-

puters 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 opera-

tions, 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 con-

tinuously 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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Major Components

3.0 MAJOR COMPONENTS

3.1 TRANSIENT VOLTAGE SURGE SUPPRESSION (TVSS)

AND EMI/RFI FILTERS

These UPS components provide surge protection and filter both elec-

tromagnetic 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.

Input Output

Inverter

Battery

Charger

DC to DC

Converter

Rectifier

/PFC

TVSS &

EMI/RFI

Filters

Dynamic

Bypass

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Major Components

3.4 BATTERY CHARGER

The battery charger utilizes energy from the utility power and pre-

cisely regulates it to continuously “float charge” the batteries. The bat-

teries 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 opti-

mum 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 diag-

nosed 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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