Emerson GXT2-10000RT208 Manuel D’Utilisation

The information below indicates various symptoms a user may encounter in the event the Liebert 

GXT2-10000RT208 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 has detected a problem.
2. An alarm will sound, alerting that the UPS requires attention. 
3. One or more additional Load Level/Battery Level indicators will be illuminated to provide a 

diagnostic aid to the operator, as described below:

All indicators

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

Indicator A

On bypass due to overtemperature condition

Indicator B

On bypass due to DC bus overvoltage

Indicator C

On bypass due to control power supply failure

Indicator D

On bypass due to PFC failure

Indicator E

On bypass due to inverter failure

Indicators A&B

Inverter-to-Inverter communications failure; half-second beep every 1 second

Indicators A&C

UPS failed battery test; 2-second beep every 60 seconds

Indicators A&D

L1 to L2 phase angle unacceptable

Indicators B&C

REPO is currently activated, UPS output cannot be started by any method

Indicators B&D

UPS is OFF due to previous REPO (REPO is no longer activated). Once utility power 

is restored, press the OFF button twice within four seconds (to clear the alarm), then 

press the ON button to start UPS (Auto-restart is NOT possible).

Indicators C&E

UPS shutdown due to command from communications (RS232 or SNMP); no beep

Indicators D&E

UPS is OFF due to charger overvoltage; 1-second beep every 4 seconds

AC Input indicator On &

Indicators A&C&E

On bypass due to the power module cover plate being removed or the slide bracket 

moved from Manual Bypass switch

AC Input indicator On &

Battery indicator Flashing

AC input has been applied to start UPS but the batteries are either missing or below 

the minimal level to allow the UPS to start; continuous audible alarm

Bypass indicator Flashing

Bypass voltage is present, but is disabled for use because the voltage or frequency is 

outside acceptable limits