Sungrow SG33CX User Manual page 85

User Manual
Fault
Description
code
088 Electric arc fault
Electric
089
detection disabled
Protection
105 self-check
on grid side
Grounding
106
fault
116-117 Device anomaly
Check method
1. Disconnect the DC inputs and check
whether DC cables are damaged, whether
the wiring terminals or fuses are loose or in
poor contact, and whether component parts
are burnt. If so, take corresponding corrective
measures.
2. After taking corresponding measures in
step 1, reconnect the DC inputs. Remove the
arc fault through the APP or LCD screen so
that the inverter will recover to be normal.
3. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
1. Enable the AFD function through the APP
or the LCD screen so that the inverter will
recover to be normal.
arc
2. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
Restart the inverter or clear the fault through
the App.
failure
If the fault still exists, contact Sungrow
Service.
1. Check whether the AC cable is correctly
connected.
2. Check whether the insulation between the
cable
ground cable and the live wire is normal.
3. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
Wait for the inverter to return to normal.
Disconnect the AC and DC switches, and
reconnect the AC and DC switches 15
minutes later to restart the inverter.
If the fault still exists, contact Sungrow
Service.
9 Troubleshooting and Maintenance
75