Liebert GXT3 User Manual

IMPORTANT SAFETY PRECAUTIONS

WARNING

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 properly trained and qualified service personnel. Do not attempt to service this product yourself.

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. Never work alone.

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that must be followed during the installation and maintenance of the UPS and batteries. Read this manual thoroughly before attempting to install or operate this UPS.

UPS Safety Notes

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 internal access 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, Emerson Network Power representative or Emerson Network Power Channel Support.

This UPS has an internal battery, and the output receptacles of the UPS may carry live voltage even if the UPS is not connected to utility input power.

Before moving or rewiring this UPS, disconnect utility input power and the battery and make sure that the UPS is completely shut down. Otherwise, the output terminal may carry live voltage, presenting an electric shock hazard.

To ensure human safety and normal UPS operation, the UPS must be properly grounded before use. When the UPS is connected to an IT power distribution system, a short-circuit protection device must be installed on the neutral line.

Installation Environment

• Temperature: 32°F – 104°F (0°C – 40°C), relative humidity: 0% ~ 95% non-condensing
• Out of direct sunlight
• Away from heat sources
• Stable surface, not subject to vibrations or shocks
• Away from dust and other particulates
• Away from corrosive substances, salts and flammable gases

Keep the air inlet and outlet of this UPS unobstructed. Poor ventilation will increase the internal temperature of the UPS and can adversely affect the UPS and its batteries.

Keep liquid and foreign objects away from the UPS.

In case of fire, use a dry chemical fire extinguisher to put out the fire. Using a fluid fire extinguisher may cause electric shock.

This UPS 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. This UPS is designed for data processing equipment. If uncertain, consult your local dealer or Emerson representative.

This UPS is not for use in a computer room as defined in the standard for the Protection of Electronic Computer/Data Processing Equipment, ANSI/NFPA 75.

The Liebert® GXT3-3000RT120™ was tested under 30A branch circuit in accordance with the National Electrical Code, ANSI/NFPA 70. To reduce the risk of fire, connect only to a circuit provided with 30A maximum branch overcurrent protection. The Liebert® GXT3™-3000RT208 was tested under 20A branch circuit in accordance with the National Electrical Code, ANSI/NFPA 70. To reduce the risk of fire, connect only to a circuit provided with 20A maximum branch overcurrent protection.

Battery Safety

CAUTION

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

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

Dispose of used batteries according to the instructions.

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.
• Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove the source of the ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock will be reduced if grounds are removed during installation and maintenance (applicable to a UPS and a remote battery supply not having a grounded supply circuit).

ELECTROMAGNETIC COMPATIBILITY

The Liebert GXT3 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.

The Liebert GXT3 series complies with the requirements of EMC Directive 2004/108/EC and the published technical standards. Continued compliance requires installation in accordance with these instructions and use of accessories approved by Emerson.

Information for the Protection of the Environment

UPS Servicing: UPS makes use of components dangerous for the environment (electronic cards, electronic components). The components removed must be taken to specialized collection and disposal centers.

GLOSSARY OF SYMBOLS

1.0 PRODUCT DESCRIPTION

The Liebert® GXT3™ is a compact, online uninterruptible power system (UPS) that continuously conditions and regulates its output voltage. The Liebert GXT3 is designed to supply microcomputers and other sensitive equipment with clean sine wave input power.

Upon generation, AC power is clean and stable. However, during transmission and distribution it is subject to voltage sags, spikes and complete failure that may interrupt computer operations, cause data loss and damage equipment.

The Liebert GXT3 protects equipment from these disturbances. The Liebert GXT3 continuously charges its batteries from utility power, enabling it to supply power to connected loads, even when utility power fails.

This section describes the UPS, its features, models, appearance and components, operating principles and operating mode.

1.1 Features

• Intelligent battery management to extend the battery life
• Operation and display panel with LED for monitoring load percentage and battery capacity independently
• Flexible network management with Liebert MultiLink™ software
• Fan fault self-inspection and automated diagnostic function
• Intelligent fan operation, automatically changing rotation speed depending on system requirements, to decrease power consumption and noise
• Input circuit breaker to ease recovery from overloads
• Safety approval from UL and cUL
• Communication options: USB port, Liebert IntelliSlot® port and terminal block communication
• Dry contacts for remote monitoring
• Input power factor greater than 0.99
• Output voltage selection function

1.2 Available Models

Eight UPS models are available.

1.3 Appearance and Components

1.3.1 Front Panel and Controls

The Liebert® GXT3™ rack/tower and minitower models in various power ratings have the same general appearance, controls and features. The various rack/tower and minitower models differ largely in the type of receptacles each has.

1.3.2 Rear Panel Features

The rear panel of the Liebert GXT3 has these features:

• USB port
• Cooling fan
• Power output receptacles
• Input circuit breaker
• Liebert IntelliSlot® port
• Communication terminal block
• Input power cable

1.4 Major Components

The operating principle of the UPS is illustrated in the accompanying diagram.

The UPS is composed of utility input, TVSS and EMI/RFI filters, rectifier/PFC, inverter, battery charger, DC-to-DC converter, battery, dynamic bypass and UPS output.

1.5 Operating Mode

The UPS operation modes include: Utility (AC) mode, bypass mode, battery mode, battery recharge mode and frequency converter mode.

2.0 INSTALLATION

2.1 Unpacking and Inspection

Unpack the UPS and conduct the following checks:

• Inspect the UPS for shipping damage. If any shipping damage is found, report it to the carrier and your local dealer or your Emerson representative immediately.
• Check the accessories included in packaging list. If there is any discrepancy, contact your local dealer or your Emerson representative immediately.

2.2 What’s Included

With GXT3 UPS

• Compact Disk with:
• Liebert MultiLink®
• Configuration Program
• User Manual
• Terminal Block Communication terminals
• USB Cable: one, 6-1/2 ft. (2m) long
• Mounting hardware, including screws and handles
• Plastic tower stand sets: 2 (four pieces)
• Warnings, Safety Instructions booklet and WEEE recycling sheet (ISO 14001 compliance)

2.3 Preparation for Installation

Install the UPS indoors in a controlled environment, where it cannot be accidentally turned Off. The installation environment should meet the specifications listed in the specifications section.

2.4 Mechanical Installation

The Liebert® GXT3™ may be installed as a tower or in a rack, depending on space and use considerations. The Liebert GXT3 may be used alone, as a single UPS, or with up to four battery cabinets.

2.5 Cable Connection

The Liebert® GXT3™ rear panel has an input cable and plug, output receptacles and output cable(s) (Output cables are on GXT3-3000 models only). Refer to the rear panel features for details. The battery cables are supplied with the battery cabinet.

3.0 CONTROLS AND INDICATORS

The operation and display panel is on the front panel of the Liebert® GXT3™.

3.1 Control Buttons

The operation and display panel has two control buttons: On/Alarm Silence/Manual Battery Test and Standby/Manual bypass.

3.2 Indicators

The operation and display panel has seven indicators. The indicators can be divided into two groups according to the applications: level indicators and UPS status indicators.

4.0 OPERATION

This section describes checks to be made before starting the UPS, how to start the UPS, manual battery test, manual bypass, shutting down the UPS and disconnecting the utility power from the UPS.

5.0 COMMUNICATION

This section describes UPS communication over the three types of communication connections on the rear of the Liebert® GXT3™.

6.0 MAINTENANCE

This section describes replacing the internal battery pack, precautions, checking the Liebert® GXT3’s status and checking UPS functions.

7.0 TROUBLESHOOTING

This section indicates various UPS symptoms a user may encounter and troubleshooting steps in the event the UPS develops a problem.

8.0 BATTERY CABINET

Optional battery cabinets are available for the Liebert® GXT3™.

9.0 SPECIFICATIONS

9.1 Product Warranty Registration

To register for warranty protection, visit the Quick Links section of the Liebert® Web site.