Fault Indicators; Table 6 Fault Indicators - Liebert GXT3-240TBATTCE User Manual

4.2.4

Fault Indicators

If a fault occurs, the UPS automatically switches to BYPASS mode, ONLY in case of a battery
disconnect fault will the original operating mode be maintained. The fault message alternates with
UPS mode once a second, the red Fault LED illuminates on the control panel and the buzzer sounds
continuously. If a fault occurs, proceed as follows:
Buzzer alarm operation—The buzzer alarm can be switched On or Off.
Clear fault—Present fault condition can be reset if fault condition is cleared, either automatically or
by the operator/technician.
Fault information—A maximum of 4 fault events may be displayed in this window. All fault
displays include: the nature of the fault event, and the time it occurred; the time is relative to the
UPS operating time.
Display faults—
Table 6
Fault
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
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The various possible fault indicators are listed in the following table.
Fault indicators
Cause Corrective steps
DC BUS fault Call customer service
Inverter fault Call customer service
Overtemperature Reduce load
Batt over volt. Call customer service
Batt. mode overload Reduce load
Output overload Reduce load
Output short Call customer service
Fan lock fault Call customer service
Batt. Disconnect Check battery connector
Charger failure Call customer service
ESD activated NA
Parallel fault Call customer service
Internal fault Call customer service
Output failure Call customer service
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Operation