Sungrow SG30CX-NI User Manual

100
Fault Code Fault Name Corrective Measures
332-363
Boost Capacitor
Overvoltage Alarm
1. The inverter can continue running.
2. Check whether the related wiring and termi-
nals are abnormal, check whether there are any
foreign materials or other environmental abnor-
malities, and take corresponding corrective
measures when necessary.
If the fault persists, please contact Sungrow
Power Customer Service.
364-395
Boost Capacitor
Overvoltage Fault
1. Disconnect the AC and DC switches, and dis-
connect the battery side switches if there are bat-
teries. Close the AC and DC switches in turn 15
minutes later and restart the system.
2. If the fault persists, please contact Sungrow
Power Customer Service.
1548-1579
String Current
Reflux
1. Check whether the number of PV modules of
the corresponding string is less than other strings.
If so, disconnect the DC switch and adjust the PV
module configuration when the string current
drops below 0.5 A.
2. Check whether the PV module is shaded;
3. Disconnect the DC switch to check whether
the open circuit voltage is normal when the string
current drops below 0.5 A. If so, check the wiring
and configuration of the PV module,
4. Check whether the orientation of the PV mod-
ule is abnormal.
9 Troubleshooting and Maintenance User Manual

Sungrow SG30CX-NI Specifications

General

Brand	Sungrow
Model	SG30CX-NI
Category	Inverter
Language	English