
27
3-9. Fault Code
Fault code
Fault event
Icon Fault code Fault event
Icon
01
Bus start failure
None
24
Inverter relay short circuited
None
02
Bus over
None
25
Line wiring fault
None
03
Bus under
None
31
Parallel communication
failure
None
04
Bus unbalance
None
36
Parallel output current
unbalance
None
06
Converter over current
None
41
Over temperature
None
11
Inverter soft start failure None
42
DSP communication failure
None
12
High inverter voltage
None
43
Overload
13
Low inverter voltage
None
46
Incorrect UPS setting
None
14
Inverter A output(line to
neutral) short circuited
47
MCU communication failure
None
15
Inverter B output(line to
neutral) short circuited
48
Two DSP firmware versions
are incompatible.
None
16
Inverter C output(line to
neutral) short circuited
49
Input and output phases are
incompatible
None
17
Inverter A-B output (line
to line) short circuited
50
Inverter STS Short circuited
None
18
Inverter B-C output (line
to line) short circuited
51
Battery wiring fault
None
19
Inverter C-A output (line
to line) short circuited
61
Bypass STS Short circuited
None
1A
Inverter A negative
power fault
None
62
Bypass STS open circuited
None
1B
Inverter B negative
power fault
None
63
Inverter A voltage wave
abnormal
None
1C
Inverter C negative
power fault
None
64
Inverter B voltage wave
abnormal
None
21
Battery SCR short
circuited
None
65
Inverter C voltage wave
abnormal
None
3-10.Warning Indicator
Warning
Icon (flashing)
Alarm
Battery low
Beeping every second
Overload
Beeping twice every second
Battery unconnected
Beeping every second
Over charge
Beeping every second
EPO enable
Beeping every second
Fan failure/Over temperature
Beeping every second
Charger failure
Beeping every second
I/P fuse broken
Beeping every second
Other warnings(refer to 3-11)
Beeping every second