SMA SUNNY ISLAND 4.4M Operating Manual page 144

14 Troubleshooting
Event number Message, cause and corrective measures
1408
Grid incident
AC sources in the system are driving the generator. The reverse power in the generator has
been exceeded for too long.
Corrective measures:
1409
Grid incident
The Sunny Island disconnects from the utility grid due to prohibited feedback.
Corrective measures:
1410
Grid incident
The feed-in current at line conductor Lxx is higher than the set maximum value (parameter
Maximum current from utility grid).
Corrective measures:
1411
Grid incident
The external current on line conductor Lxx is greater than the permissible maximum current
(see parameter Maximum current from utility grid or Nominal generator current).
Corrective measures:
1412
Grid incident
The pre-fuse F104.1, F104.2 or F104.3 in the Multicluster-Box is open. A Sunny Island in
the main cluster (master / slave 1 / slave 2) detects a supply voltage at ExtVtg and tries to
switch to Lxx in the multicluster system. At line conductor Lxx an anti-islanding error occurs
due to the open pre-fuse.
Corrective measures:
144 SI44M-80H-13-BE-en-15
• Adjust the generator request to the properties of the AC sources in the system and the
loads, e.g., for PV inverters, preferably request the generator at night.
• If the generator can absorb reverse power, adjust the reverse power in the generator
settings.
• Contact the Service.
• Contact the Service.
• Reduce power consumption of all loads.
• Reduce power output of the AC sources (e.g. PV inverter).
• Reactivate the pre-fuse.
• Check the voltage supply at terminal AC2 of the master in the main cluster.
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Operating manual