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User Manual - 208V, 2700VA
AC Power Systems
For Business-Critical Continuity™


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   Summary of Contents for Liebert GXT2U

  • Page 1

    Liebert GXT2U ® User Manual - 208V, 2700VA AC Power Systems For Business-Critical Continuity™ ™...

  • Page 3: Table Of Contents

    Dynamic Bypass ........6 Liebert GXT2U—Rear View ......7 .

  • Page 4

    ONFIGURATION Liebert GXT2U Configuration Program Abilities ..22 What You Will Need ....... . 22 .

  • Page 5: Important Safety Instructions

    208V supply (programmable for 200, 208, 220, 230, and 240VAC 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)

  • Page 6

    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.

  • Page 7: Glossary Of Symbols

    LOSSARY OF YMBOLS 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...

  • Page 8: Introduction

    The Liebert GXT2U protects equipment from these disturbances. The Liebert GXT2U is rated for 2700 VA, 1890 watts. 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.

  • Page 9: Major Components

    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. AJOR...

  • Page 10: Dc-to-dc Converter

    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.

  • Page 11: Liebert Gxt2u-rear View

    Liebert GXT2U—Rear View DB-9 Communications Port AC Input (L6-20) External Battery Connector Output Receptacle (L6-20R) Support Base Liebert ® IntelliSlot Port Cooling Fans Input Circuit Breaker (20 amp) Output Receptacles (L6-15R)

  • Page 12: Installation

    The UPS is heavy (see Specifications section). Take proper precautions when lifting or moving it. 2. Decide where to place the Liebert GXT2U. Install the UPS indoors in a con- trolled environment, where it cannot be accidentally turned off. Place it in an area of unrestricted airflow around the unit, away from water, flamma- ble liquids, gases, corrosives, and conductive contaminants.

  • Page 13: Rack-mount Ups Conversion And Installation

    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.

  • Page 14

    Install rear member of each bracket assembly into rack enclo- sure with two (2) M5 screws pro- vided 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.

  • Page 15

    6. Open grease packet provided in this kit. Apply a 1" long bead of grease four (4) places inside the bottom, curved tracks of front members as shown at right. The grease will allow the equipment to slide into the bracket assem- blies more easily.

  • Page 16: External Battery Cabinet Installation

    9. To orient the display for horizontal viewing, remove the front plastic bezel by pulling forward evenly on both sides. The unit has two front panel overlays. Remove the outer overlay (used for tower installation). This reveals a horizontally oriented front panel overlay for rack mount- ing.

  • Page 17

    4. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of support base extensions ships with each external battery cabinet. 5. Connect the supplied external battery cabi- net cable to the rear of the external battery cabinet, then to the rear of the UPS.

  • Page 18: Controls And Indicators

    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 Liebert GXT2U will reactivate the alarm system to alert of additional problems. NOTE The LOW BATTERY and BYPASS reminder alarms CANNOT be silenced.

  • Page 19: Standby/manual Bypass Button

    UPS; and during battery mode operation LED indicators display approximate battery capacity. The Liebert GXT2U 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 interrupted. Should the battery fail this test, the red Fault indicator LED along with the A and C diagnostic LEDs will illuminate and an alarm will sound (refer to Troubleshooting section).

  • Page 20: Output Voltage Selection

    The Output Voltage is user configurable and is designed to allow selecting or changing the desired output voltage to match the utility via the Liebert GXT2U Configuration Program provided with the UPS. The settings to choose from are 200, 208, 220, 230, and 240 VAC output. The factory default setting is 208 VAC.

  • Page 21: Perating Nstructions

    Normal Mode Operation AC INPUT BATTERY UPS ON BYPASS Normal Mode Operation at 26-50% indicate an approximate level of load in 25% increments. If the UPS becomes loaded beyond full rating, the fifth (amber) LED indicator will illuminate and the UPS will sound an audible alarm. The display template indicates the percentage of load (26-50% of load shown in the example above) on the UPS output.

  • Page 22: Battery Mode Operation

    Battery Mode Operation AC INPUT BATTERY UPS ON BYPASS Battery Mode Operation at 80-61% 5 seconds when the battery runs low (approximately 2 minutes remaining, but this is user configurable). The AC Input LED will extinguish, and the Battery LED will illuminate to warn that a utility problem has occurred. Each battery level indicator represents a 20% capacity level.

  • Page 23: Communications

    Communications Interface Port The Liebert GXT2U 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: Low Battery (open collector) UPS TxD (typical RS-232 levels) UPS RxD (typical RS-232 levels) Remote Shutdown (5-12VDC, 10-24 mA max);...

  • Page 24: Pins 5 & 6 - Any-mode Shutdown

    UPS setting back to the default setting using the configuration program via a serial communication link. If version 1.6 (or later) is used with an earlier Liebert GXT2U model (with an earlier UPS firmware version), the Any-Mode Shutdown features cannot be changed.

  • Page 25: Ups Intelligent Communications

    Several option cards are available for use in the Liebert IntelliSlot port of the Liebert GXT2U. The Liebert IntelliSlot SNMP/Web Card provides SNMP and Web-based monitoring and control of the UPS across the network. The Liebert IntelliSlot MultiPort 4 Card allows you to install Liebert MultiLink software on four computers and coordinate shutdown in the event of a power failure.

  • Page 26: Configuration Program

    This is a new feature included with the new Liebert GXT2U line. Several UPS settings that were previously not available or required custom manufacturing may now be modified using this program. For most users, the factory default settings will be adequate. This manual illustrates the features available for modification, as well as the factory default setting.

  • Page 27: Maintenance

    UPS in for at least 24 hours every four to six months to ensure full recharge of the batteries. The Liebert GXT2U 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.

  • Page 28: Internal Battery Replacement Procedures

    Internal Battery Replacement Procedures 1. Gently remove the front plastic bezel cover from the UPS. 2. Loosen and remove the four screws on the front battery door. Lay the bat- tery door aside for reassembly. 3. Gently pull battery wiring out and disconnect the two slotted battery con- nectors.

  • Page 29: Roubleshooting

    The information below indicates various symptoms a user may encounter in the event the Liebert GXT2U 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 detected a problem.

  • Page 30: Troubleshooting Guide

    UPS internal DC bus overvolt- diagnostic LED B are age. illuminated. Fault and Bypass indicator LEDs and UPS control power supply fault. diagnostic LED C are illuminated. Cause Ensure UPS is OFF. Disconnect all loads and ensure nothing is lodged in output receptacles.

  • Page 31

    Troubleshooting Guide (Continued) Problem Fault and Bypass indicator LEDs and UPS PFC (Power Factor Cor- diagnostic LED D rection Circuit) fault. are illuminated. Fault and Bypass indicator LEDs and UPS inverter fault. diagnostic LED E are illuminated. Fault indicator LED and diagnostic UPS failed the battery test.

  • Page 32

    Condition Battery Mode (utility failure) Low Battery Output Overload (bypass) Overtemperature (bypass) DC Bus Overvoltage (bypass) Control Power Supply Failure (bypass) PFC Failure (bypass) Inverter Failure Battery Test Failure Alarm Conditions Alarm One short beep every 10 seconds; more than 2 minutes of run time remaining Two short beeps every 5 seconds;...

  • Page 33: Specifications

    Model Number Model Rating DIMENSIONS: in. (mm) Unit - W x D x H: in. (mm) 3.5 x 24.2 x 17 (87 x 618 x 430) Shipping - W x D x H: in. (mm) 10.5 x 27.2 x 23 (268 x 692 x 585) WEIGHT lbs (kg) Unit: lbs (kg) 75.2 (34.1) Shipping: lbs (kg) 84.9 (38.5)

  • Page 34: Battery Cabinet Specifications

    Battery Cabinet Specifications Model Number Used w/ UPS Model GXT2-2700RT208 DIMENSIONS in (mm) Unit - W x D x H in. (mm) 3.5 x 24.2 x 17 (87 x 618 x 430) Shipping - W x D x H in. (mm) 10.5 x 27.2 x 23 (268 x 692 x 585) WEIGHT, lb (kg) Unit: lbs (kg) 93.6 (42.5) Shipping: lbs (kg) 102.5 (46.5)

  • Page 35: Battery Run Times

    Battery Run Times Internal Battery (minutes) Internal Battery + 1 External Battery Cabinet (minutes) Internal Battery + 2 External Battery Cabinets (minutes) Internal Battery + 3 External Battery Cabinets (minutes) Load % Estimated Time 100% 100% 100% 1092 100%...

  • Page 36: Product Warranty Registration

    Battery Run Times (Continued) Internal Battery + 4 External Battery Cabinets (minutes) Note: Approximate discharge times are in minutes and at 77°F (25°C) with a 100% resistive load. Product Warranty Registration To register for warranty protection: • Visit the Quick Links section of our Web site at: •...

  • Page 40

    Connectivity DC Power Systems Embedded Computing Embedded Power Integrated Cabinet Solutions Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2007 Emerson Electric Co. Locations United States 1050 Dearborn Drive P.O.

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