Operation and Display Panel
35
Liebert
®
GXT4
™
3.4.6 Fault List
All UPS fault messages are described in
Table 8
.
If a fault occurs, the UPS automatically switches to Bypass Mode. The original operating mode will be
maintained only in the case of a battery disconnection fault. The fault message alternates with UPS
Mode once a second, the red fault indicator on the operation and display panel lights up and the alarm
sounds continuously.
If a fault occurs, proceed as follows:
1. Enter the ALARM CONTROL screen (see
Figure 35
), and select
AUDIBLE ALARM ON
or
AUDIBLE ALARM OFF
to switch the alarm On or Off.
2. Enter the EVENT LOG screen (see
Figure 37
), and select
VIEW LOG
to view the entire Event log.
Table 8
Fault list
Fault
Description
UPS Self-Test Failed
The battery is bad or weak or not connected.
UPS Overload
The UPS is overloaded.
Inverter Out Of Order
The inverter has failed.
Battery Weak/Bad
The battery is bad or weak.
Output Short Circuit
The output connection is short-circuited.
DC Bus Overvoltage
The DC bus is faulty.
UPS Overtemperature
Overtemperature occurs to the UPS and the UPS will transfer to Bypass mode.
Charger Out Of Order
The charger has failed.
Fan Out Of Order
At least one fan is failed.
DC Bus Discharge Fail
DC-DC failure occurs.
Rectifier Out Of Order
Rectifier failure occurs.
NOTE
There will be a short delay before the EVENT LOG screen displays the historical fault log to
allow the log to load.
Summary of Contents for Liebert GXT4
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