Liebert Upstation Gxt 2u User Manual

Liebert UPSTATION GXT 2U User Manual. Troubleshooting guide. Liebert Tools. Manuals Directory ManualsDir.com - online owner manuals library. Liebert manuals. Liebert representative or contact the Liebert Worldwide Support Group. Please have the UPS model number and serial number available at the time of your.

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23

TROUBLESHOOTING

The information below indicates various symptoms a user may encounter
in the event the UPStation GXT 2Uâ„¢ develops a problem. Use this infor-
mation 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.
2. An alarm will sound, alerting that the UPS requires attention.
3. One or more additional load/battery level LED indicators will be illumi-

nated to provide a diagnostic aid to the operator, as described below:

LED status Diagnosis/Audible alarm

All LEDs

On bypass due to output overload; beep ever half-second

A LED

On bypass due to overtemperature condition; beep every 4 sec.

B LED

On bypass due to DC bus overvoltage; beep every 4 sec.

C LED

On bypass due to control power supply failure; beep every 4 sec.

D LED

On bypass due to PFC failure; beep every 4 sec.

E LED

On bypass due to inverter failure; beep every 4 sec.

A&C LEDs

UPS failed battery test; long beep every minute

C&E LEDs

UPS shutdown due to command from communication port

(SNMP); no beep

Battery

LED Flashing

Internal Battery source not available (continuous horn). Check

battery connection, completely power down and reboot UPS.

AC LED

Flashing

Line to neutral reversal in the AC input power supply or a loss of

proper grounding; continuous horn and UPS will not start.

Bypass LED

Flashing

Utility power voltage or frequency is out of tolerance; bypass is

unavailable.

This example shows UPS on bypass

due to output overload.

Fault

E

D

C

B

A

A

B

C

D

E

Fault

AC INPUT BATTERY UPS ON BYPASS

BATTERY

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UPS ON

BYPASS

AC

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INPUT

LOAD/BATTERY

LEVEL INDICATORS

Liebert Upstation Gxt 2u User Manual Instructions

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