User Manual 9 Troubleshooting and Maintenance
Fault Code Fault Name Corrective Measures
17
Grid Voltage Imbal
ance
Generally, the inverter will be reconnected to the
grid after the grid returns to normal. If the fault oc
curs repeatedly:
1. Measure the actual grid voltage. If grid phase
voltages differ greatly, contact the electric power
company for solutions.
2. If the voltage difference between phases is with
in the permissible range of the local power compa
ny, modify the grid voltage imbalance parameter
through the App or the LCD.
3. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the fault persists.
28, 29, 208,
212, 448-479
PV Reserve Con
nection Fault
1. Check whether the corresponding string is of re
verse polarity. If so, disconnect the DC switch and
adjust the polarity when the string current drops
below 0.5 A.
2. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the fault persists.
*The code 28 to code 29 are corresponding to PV1
to PV2 respectively.
*The code 448 to code 479 are corresponding to
string 1 to string 32 respectively.
532-547,
564-579
PV Reverse Con
nection Alarm
1. Check whether the corresponding string is of re
verse polarity. If so, disconnect the DC switch and
adjust the polarity when the string current drops
below 0.5 A.
2. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the alarm persists.
*The code 532 to code 547 are corresponding to
string 1 to string 16 respectively.
*The code 564 to code 579 are corresponding to
string 17 to string 32 respectively.
101
To Next Page
Loading...
