9 Troubleshooting and Maintenance User Manual
Fault Code Fault Name Corrective Measures
84
Reverse Connec
tion Alarm of the
Meter/CT
1. Check if the meter is wrongly connected.
2. Check if the input and output wiring of the meter
is reversed.
3. If the existing system is enabled, please check
if the rated power setting of the existing inverter is
correct.
514
Meter Communi
cation Abnormal
Alarm
1. Check whether the communication cable and
the terminals are abnormal. If so, correct them to
ensure reliable connection.
2. Reconnect the communication cable of the me
ter.
3. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the alarm persists.
323 Grid Confrontation
1. Check whether the output port is connected to
actual grid. Disconnect it from the grid if so.
2. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the fault persists.
75
Inverter Paral
lel Communication
Alarm
1. Check whether the communication cable and
the terminals are abnormal. If so, correct them to
ensure reliable connection.
2. Reconnect the communication cable of the me
ter.
3. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the alarm persists.
7, 11, 16, 19–25,
30–34, 36, 38,
40–42, 44–50,
52–58, 60–69,
85, 87, 92, 93,
100–105, 107–
114, 116–124,
200–211, 248–
255, 300–322,
324–328, 401–
412, 600–603,
605, 608, 612,
616, 620, 622–
624, 800, 802,
804, 807, 1096–
1122
System Fault
1. Wait for the inverter to return to normal.
2. 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.
3. Contact Sungrow Customer Service if the pre
ceding causes are ruled out and the fault persists.
104
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