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Inverter C-A output (line
19
to line) short circuited
Inverter A negative
1A
power fault
Inverter B negative
1B
power fault
Inverter C negative
1C
power fault
Battery SCR short
21
circuited
Inverter relay circuited
23
open
Inverter relay short
24
circuited
25
Line wiring fault
Parallel communication
31
failure
32
The host signal failure
Synchronous signal
33
failure
Synchronous trigger
34
signal failure
Parallel communication
35
loss
Parallel output current
36
unbalance
41
Over temperature
40
Bypass O/P short
67
circuited
Bypass O/P line to line
68
short
circuited
Inverter SCR short
69
circuited
BUS voltage drops too
6C
fast
Current error value
6D
detect
6E
SPS power error
6F
Battery polarity reverse
PFC IGBT over-current
71
in A phase
PFC IGBT over-current
72
in B phase
PFC IGBT over-current
73
in C phase
INV IGBT over-current in
74
A phase
INV IGBT over-current in
75
B phase
INV IGBT over-current in
76
C phase
77
ISO Over temprature
LCD&MCU
78
communication failed
3.7. Warning Code
Warning
Warning event
code
01
Battery unconnected
02
IP Neutral loss
04
IP phase abnormal
05
Bypass phase abnormal
07
Over charge
08
Low battery
09
Overload
0A
Fan failure
0B
EPO enable
0D
Over temperature
0E
Charger failure
Warning
Warning event
code
Line situations are different in
21
parallel system
Bypass situations are
22
different in parallel system
Locked in bypass after
33
overload 3 times in 30 minutes
34
Converter current unbalanced
Cover of maintain switch is
3A
open
3C
Utility extremely unbalanced
3D
Bypass is unstable
3E
Battery voltage too high
3F
Battery voltage unbalanced
40
Charger short circuited
41
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