Sungrow SH3K6 - Page 78

8 Troubleshooting and Maintenance User Manual
70
Code
Specification
Troubleshooting
programmable logic device)
cannot be detected.
the CPLD
064
INV over-voltage fault in the
off-grid mode.
Wait 5 minutes for inverter
recovery or restart the system.
065
INV under-frequency fault in
the off-grid mode.
(default value: 47 Hz)
066
INV over-frequency fault in the
off-grid mode.
(default value: 52 Hz)
067
Temporary grid over-voltage in
the off-grid mode.
(default value: 500 V)
083
Fan2 abnormal speed warning.
1. Check if the fan is blocked.
2. Restart the system.
084
Warning for reverse cable
connection of the Sungrow
Energy Meter.
1. Check whether the power cable
connections are correct.
2. For Sungrow single-phase
Energy Meter, check whether the
CT clamp of the 1-phase sensor is
correctly placed. Refer to “7.4.1
Energy Meter Installation and
Connection”.
100
INV hardware over-current
fault.
The AC current exceeds the
protective value.
Wait 5 minutes for inverter
recovery or restart the system.
101
Grid over-frequency.
(default value: 51.5 Hz)
Check the grid frequency.
102
Grid under-frequency.
(default value: 47.5 Hz)
105
SPI auto test fault (for Italy
only)
1. Clear the fault via the LCD
menu.
2. Restart the system and re-do
the auto test if necessary.
3. If the fault persists, please
contact SUNGROW for a solution.
106
Earth fault.
Neither the PE terminal on the
AC connection block nor the
second PE terminal on the
enclosure is reliably connected.
1. Check whether there is a
reliable grounding connection.
2. Check whether the L-line and
N-line are connected correctly.
3. If there is access to the ground,
and the fault still exists, please
contact SUNGROW for a solution.
107
DC injection over-voltage fault
in the off-grid mode.
The DC injection of INV voltage
exceeds the upper limit.
The inverter will recover once the
DC injection voltage falls below
the recovery value.