Sungrow SG110CX - Page 111

9 Troubleshooting and Maintenance User Manual
Fault Code Fault Name Corrective Measures
548-563,
580-595
PV Abnormal
Alarm
Check whether the voltage and current of the in
verter is abnormal to determine the cause of the
alarm.
1. Check whether the corresponding module is
sheltered. If so, remove the shelter and ensure
module cleanness.
2. Check whether the battery board wiring is loose,
if so, make it reliably connected.
3. Check if the DC fuse is damaged. If so, replace
the fuse.
4. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the alarm persists.
*The code 548 to code 563 are corresponding to
string 1 to string 16 respectively.
*The code 580 to code 595 are corresponding to
string 17 to string 32 respectively.
37
Excessively High
Ambient Tempera
ture
Generally, the inverter will resume operation when
the internal or module temperature returns to nor
mal. If the fault persists:
1. Check whether the ambient temperature of the
inverter is too high;
2. Check whether the inverter is in a well-ventilated
place;
3. Check whether the inverter is exposed to direct
sunlight. Shield it if so;
4. Check whether the fan is running properly. Re
place the fan if not;
5. Contact Sungrow Power Customer Service if the
fault is due to other causes and the fault persists.
43
Excessively Low
Ambient Tempera
ture
Stop and disconnect the inverter. Restart the in
verter when the ambient temperature rises within
the operation temperature range.
102