Sungrow SH8.0RS User Manual page 145

User Manual
Alarm ID
39
106
88
51
84
514
Alarm Name Corrective Measures
Wait for the inverter to return to normal. If the fault oc-
curs repeatedly:
1. Check whether the ISO resistance protection value
is excessively high via the app or the LCD, and en-
sure that it complies with the local regulations.
2. Check the resistance to ground of the string and
DC cable. Take corrective measures in case of short
Low System Insu-
circuit or damaged insulation layer.
lation Resistance
3. If the cable is normal and the fault occurs on rainy
days, check it again when the weather turns fine.
4. If there are batteries, check whether battery cables
are damaged and whether terminals are loose or in
poor contact. If so, replace the damaged cable and
secure terminals to ensure a reliable connection.
5. If the fault still exists, contact SUNGROW.
1. Check whether the AC cable is correctly connected.
2. Check whether the insulation between the ground
Grounding Cable
cable and the live wire is normal.
Fault
3. If the fault still exists, contact SUNGROW.
1. After performing step 1, reconnect the DC power
supply, and clear the electric arc fault via the App or
Electric Arc Fault
the LCD, after that the inverter will return to normal.
2. If the fault still exists, contact SUNGROW.
1. Reduce the load power at the off-grid port or cut off
Off-Grid Load
some loads.
OverPower Fault
2. If the fault still exists, contact SUNGROW.
1. Check if the meter is wrongly connected.
2. Check if the input and output wiring of the meter is
Reverse Connec-
reversed.
tion Alarm of the
3. If the existing system is enabled, please check if
Meter/CT
the rated power setting of the existing inverter is
correct.
1. Check whether the communication cable and the
terminals are abnormal. If so, correct them to ensure
Meter Communi-
reliable connection.
cation Abnormal
2. Reconnect the communication cable of the meter.
Alarm
3. If the alarm still exists, contact SUNGROW.
10 Troubleshooting and Maintenance
135