Sungrow SG2K5-S - Page 84

9 Troubleshooting and Maintenance User Manual
76
Code
Description
Troubleshooting
106
Abnormal grounding.
Neither the PE terminal
on the AC connection
block nor the second
PE terminal on the
enclosure is reliably
connected.
Check whether there is a reliable inverter
grounding line, if there is access to the
ground, and the fault persists, please
contact SUNGROW.
200
Bus hardware
over-voltage fault.
The bus voltage
exceeds the protective
value.
1. Wait for inverter recovery after bus
voltage lower.
2. If the fault occurs repeatedly, contact
SUNGROW.
201
The bus voltage is too
low.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
SUNGROW.
202
PV hardware
over-current fault.
The PV1 or PV2
current exceeds the
protective value.
If the fault occurs repeatedly, contact
SUNGROW.
203
The PV input voltage
exceeds the bus
voltage.
Check the functionality of the PV connection
terminals.
306
Input and output power
mismatching fault.
If the fault occurs repeatedly, contact
SUNGROW.
315
PV1 current sampling
fault.
Channel sampling anomaly.
Contact SUNGROW.
316
PV2 current sampling
fault.
320
Leakage current
sensor fault.
Contact SUNGROW.
409
All temperature
sensors fail.
If the fault occurs repeatedly, contact
SUNGROW.
503
Ambient temperature
sensor open circuit
warning.
504
Ambient temperature
sensor short circuit
warning.
If the fault occurs repeatedly, contact
SUNGROW.
505
Radiator temperature
sensor open circuit
warning.
506
Radiator temperature
sensor short circuit
warning.