8. Troubleshooting
8. Troubleshooting
Alarm Message
Fai l u re description
Solution
Alarm Message
Failure description
Solution
ARC-FAULT
ARC detected in DC circuit
1 . Check if there's arc in PV connection
and restart in verter.
OV- D C 0 1 /02/03/04
O ver DC voltage
1 . Reduce the m odule number in series.
AFCI Check FAULT
AFCI m odule sel f check fault
1 . Restart in verter or contact installer.
1 . Restart in verter.
OV- D CA-I
D C input o vercurrent
2. Identify and remove the string to the fault MPPT.
DCinj-FAUL T
High DC injection current
1 . Restart in verter or contact installer.
3. Ch ange power board.
D S P-B-FAULT
Com m . failure between m ain
1 . Restart in verter or contact installer.
and slave D S P
1 . Resistant of AC cable i s too high .
OV-G-V0 1 /02/03/04
O ver grid v oltage
Ch ange bigger size grid cable .
2. Adjust the protection limit if it's
1 . Restart in verter.
allowed by electrical com pany.
D C- I N T F
D C input o vercurrent
2. Identify and remove the string to the fault MPPT.
3. Ch ange power board.
OV-G-I
O ver grid current
1 . Restart in verter.
2. Ch ange power board .
1 . Use user de fine function to adjust the
1 . Use user de fine function to adjust the
G-IM P
High grid im pedance
protection limit if it's allowed by
OV-G- F 0 1 /02
O ver grid frequency
protection limit if it's allowed by
electrical com pany.
e lectrical com pany.
OV-lgTr
AC side transient overcurrent
G R I D - IN T F0 1 /02
Grid interference
1 . Restart in verter.
2. Ch ange power board.
IG BT-OV-I
O ver IG BT current
OV-I LLC
LLC h ardware overcurrent
1 . Restart in verter.
2. Return- factory repair.
IG F O L-F
Grid current tracking fail
OV-VBackup
Backup o verv oltage fault
1 . Restart in verter or contact installer.
IG-AD
Grid current sam pling fail
1 . Check in verter surrounding ventilation.
I Leak-PRO
leakage current protection
1 . Check AC and DC connection.
01 /02/03/04
2. Check in verter inside cable connection.
OV- T E M
O ver Te m perature
2. Check if there's sunshine direct on
in verter in h ot weather.
IN I-FAULT
Initialization syste m fault
1 . Restart in verter or contact installer.
1 . Check if the connector on m ain
The detection of battery
1 . Check the protect point for over v oltage
OV-Vbatt1
o vervoltage
sets correctly or not.
2. Restart in verter.
LCD sh ow initializing
Can not start-up
board or power board are fixed .
all the time
2. Check if the D S P connector to
power board are fixed.
Battery overv oltage
1 . Check the circuit whether the battery
OV-Vbatt-H
h ardware fault
circuit jumps.
2 . Restart in verter.
1 . Check the wire of battery power is
NO-Battery
Unconnected battery
connected correctly or not.
2 . Check the output voltage of battery
is correctly or not.
1 . Check the load of Backup port is over
Over-Load
Backup o verload fault
rating output power or not.
2 . Reduce the load of Backup port,
then restart in verter.
1 . Check PV input connections.
No power
I n verter no power
2. Check DC input v oltage
on L C D
(single ph ase > 1 20V, three ph ase >350V).
3 . Check i f PV+/- is re versed.
1. Re m o ve all D C input, reconnect and
PV ISO- P R O0 1 /02
PV isolation protection
restart in verter one by one .
2. Identify which string cause the fault and
1 . Check connections and grid switch .
check the isolation of the string .
N O-G R ID
No grid v oltage
2. Check the grid v oltage inside in verter
terminal.
RelayCh k-FAIL
Relay check fail
1 . Restart in verter or contact installer.
OV- B US
O ver DC bus voltage
1 . Check in verter inductor connection.
2 . Check driver connection.
. 56.
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