Quick User Manual
5 Troubleshooting
37
Code
Specification
Troubleshooting
021
PV1 over-current.
The input current of PV1 exceeds
the upper limit.
1. Check the PV input power and
configuration.
2. Wait a moment for inverter
recovery or restart the system.
022
PV2 over-current.
The input current of PV2 exceeds
the upper limit.
024
Neutral point voltage imbalance.
The deviation of the neutral
point voltage exceeds the
allowable limit.
1. The inverter will recover once the
deviation falls below the protective
limit.
2. Wait a moment for inverter
recovery or restart the system.
028
Reverse polarity of the PV1
connection.
1. Disconnect the DC switch.
2. Check the polarity of the PV
inputs.
3. Reconnect the PV strings if the
polarity is incorrect.
029
Reverse polarity of the PV2
connection.
037
Inner over-temperature fault.
The ambient temperature inside
the inverter exceeds the upper
limit.
1. Check and clean the heat sink.
2. Check whether the inverter is
installed in sunlight or the ambient
temperature of the enclosure
exceeds 45
℃
. If not, please contact
SUNGROW for a solution.
038
Relay fault on the grid side.
Wait 5 minutes for inverter recovery
or restart the system.
041,
622
Leakage current sampling fault.
Wait 5 minutes for inverter recovery
or restart the system.
043
Inner under-temperature fault.
The ambient temperature inside
the inverter is too low
The inverter will recover once the
ambient temperature rises above
-25
℃
.
044
INV open-loop self-check fault.
Wait 5 minutes for inverter recovery
or restart the system.
045
PV1 boost circuit fault.
046
PV2 boost circuit fault.
048
Phase current sampling fault.
051
Load overpower fault in the
off-grid mode.
If the fault persists, disconnect some
non-key loads.
052
INV under-voltage fault in the
off-grid mode.
Wait 5 minutes for inverter recovery
or restart the system.
062
DI fault of the backup box STB5K.
1. Check whether the DI connection
between the inverter and the
backup box is correct.
2. Wait 5 minutes for inverter
recovery.
063
The version of CPLD (complex
programmable logic device)
Power off the system and program
the CPLD
Summary of Contents for SH5K
Page 1: ...SH5K QUEN Ver14 201708 Version 1 4 Quick User Manual SH5K Grid Connected Hybrid Inverter ...
Page 2: ......
Page 4: ...II System Overview ...
Page 5: ...III ...
Page 6: ...IV ...
Page 7: ...V ...
Page 8: ...VI ...
Page 9: ...VII ...
Page 10: ...VIII ...
Page 32: ...3 Commissioning Quick User Manual 20 Fig 3 2 Initial Settings ...