3-9. Fault Code
Fault code
01
02
EN
03
04
06
11
12
13
14
15
16
17
18
19
3-10.Warning Indicator
Warning
Battery low
Overload
Battery unconnected
Over charge
EPO enable
Fan failure/Over temperature
Charger failure
I/P fuse broken
Overload 3 times in 30min
Fault event
Bus start failure
Bus over
Bus under
Bus unbalance
Converter over current
Inverter soft start failure
High inverter voltage
Low inverter voltage
Inverter A output(line to
neutral) short circuited
Inverter B output(line to
neutral) short circuited
Inverter C output(line to
neutral) short circuited
Inverter A-B output (line
to line) short circuited
Inverter B-C output (line
to line) short circuited
Inverter C-A output (line
to line) short circuited
Icon (flashing)
Icon
Fault code
Fault event
None
1A
Inverter A negative power
fault
None
1B
Inverter B negative power
fault
None
1C
Inverter C negative power
fault
None
21
Battery SCR short circuited
None
24
Inverter relay short circuited
None
29
Battery fuse broken in
Battery mode
None
31
Parallel communication
failure
None
36
Parallel output current
unbalance
41
Over temperature
42
DSP communication failure
43
Overload
46
Incorrect UPS setting
47
MCU communication failure
48
Two DSP firmware versions
are incompatible.
49
Input and output phases are
incompatible
Alarm
Beeping every second
Beeping twice every second
Beeping every second
Beeping every second
Beeping every second
Beeping every second
Beeping every second
Beeping every second
Beeping every second
29
Icon
None
None
None
None
None
None
None
None
None
None
None
None
None
None