Sungrow SC50HV - Page 74

10 Troubleshooting and Maintenance User Manual
64
Fault
code
Specificati
on
Troubleshooting
10
Islanding
protection
1. Whether tripping occurs in the grid during on-grid
operation. If yes, it is normal
2. If the fault still exists, please contact Sungrow
Service.
36
Module over
temperature
1. Check whether the ambient temperature is normal
2. Check whether air ducts of the device have been
blocked
3. Check whether the fans run normally
4. If the fault still exists, please contact Sungrow
Service.
12
Leakage
current
protection
1. The fault can be caused by poor sunlight or damp
environment, and the PCS will be reconnected to the
grid after the environment is improved.
2. Check if the battery pack is in poor contact.
3. Check the protection value setting in the APP.
4. If the fault is not caused by the foregoing reasons and
still exists, contact Sungrow Service.
16
Overload
protection
Wait for the PCS to return to normal.
If the fault occurs repeatedly, contact Sungrow Service.
206
DC
overcurrent
Wait for the PCS to return to normal.
If the fault occurs repeatedly, contact Sungrow Service.
7
AC over
current
1. Check whether the external grid is abnormal during
on-grid operation
2. Check whether the load is excessively heavy during
off-grid operation
3. If the fault still exists, please contact Sungrow
Service.
37
Temperature
anomaly
When the internal temperature returns to normal, the
machine will reconnect to the grid. If the fault occurs
repeatedly:
1. Check if the ambient temperature of the PCS is too
high
2. Check if the machine is in a place that is easy to
ventilate
3. Check if the machine is in direct sunlight, if it is,
please properly shade it.
4. Check if the fan is running normally. If it is not
normal, please replace the fan.
5. If the fault is not caused by the foregoing reasons and
still exists, contact Sungrow Service.
40
Hardware
fault
Wait for the PCS to return to normal.
If the fault occurs repeatedly, contact Sungrow Service.