Sungrow SH3K6 - Page 76

8 Troubleshooting and Maintenance User Manual
68
For Inverter Side
Code
Specification
Troubleshooting
002
Grid over-voltage.
(default range: 264.5 V)
1. Check the grid voltage.
2. If the grid voltage exceeds the
permissible range, consult the
utility grid for a solution.
003
Temporary grid over-voltage in
the on-grid mode.
(default value: 400 V)
This is a short-term fault.
Wait a moment for inverter
recovery or restart the system.
004
Grid under-voltage.
(default range: 184.0 V...195.5
V)
1. Check the grid voltage.
2. If the grid voltage exceeds the
permissible range, consult the
utility grid for a solution.
005
Grid under-voltage.
(default value: 195.5 V)
007
Temporary AC over-current.
The transient AC current has
exceeded the allowable upper
limit.
Wait a moment for inverter
recovery or restart the system.
008
Grid over-frequency.
(default range: 50.5 Hz...51.5
Hz)
1. Check the grid frequency.
2. If the grid frequency exceeds
the permissible range, consult the
utility grid for a solution.
009
Grid under-frequency.
(default range: 47.5 Hz...49.5
Hz)
010
Islanding.
Abnormal connection between
the system and the grid.
1. Check whether the AC circuit
breaker is triggered.
2. Check whether all the AC
cables are firmly connected.
3. Check whether the grid is in
service.
011
DC injection over-current.
The DC injection of the AC
current exceeds the upper limit.
Wait a moment for inverter
recovery or restart the system.
012
Leakage current over-current.
The leakage current exceeds
the upper limit.
1. Check whether there is a
grounding fault in the PV strings.
2. Wait a moment for inverter
recovery or restart the system.
014
10-minute grid over-voltage.
The average grid voltage is
outside the permissible range
for over 10 minutes.
(default range: 253.0 V...257.6
V)
1. Check whether the grid is
operating normally.
2. Wait a moment for inverter
recovery or restart the system.
015
Grid over-voltage.
(default value: 264.5 V)
1. Check the grid voltage.
2. If the grid voltage exceeds the
permissible range, consult the
utility grid for a solution.