Vertiv Liebert GXT-MT+10KVA - Fault Code

28
Fault status
When fault occurs in UPS, it will display fault icon and
fault code in LCD panel. Alarm beeps continuously.
3-9. Fault Code
Fault code
Fault event
Icon
Fault code
Fault event
Icon
01
Bus start failure
None
1A
Inverter A negative power
fault
None
02
Bus over
None
1B
Inverter B negative power
fault
None
03
Bus under
None
1C
Inverter C negative power
fault
None
04
Bus unbalance
None
21
Battery SCR short circuited
None
06
Converter over current
None
24
Inverter relay short
circuited
None
11
Inverter soft start failure
None
29
Battery fuse broken in
Battery mode
None
12
High inverter voltage
None
36
Parallel output current
unbalance
None
13
Low inverter voltage
None
41
Over temperature
None
14
Inverter A output(line to
neutral) short circuited
42
DSP communication failure
None
15
Inverter B output(line to
neutral) short circuited
43
Overload
16
Inverter C output(line to
neutral) short circuited
46
Incorrect UPS setting
None
17
Inverter A-B output (line
to line) short circuited
47
MCU communication
failure
None
18
Inverter B-C output (line
to line) short circuited
48
Two DSP firmware
versions are incompatible.
None
19
Inverter C-A output (line
to line) short circuited
49
Input and output phases
are incompatible
None