14 Troubleshooting
SMA Solar Technology AG
Operating manual
SI44M-80H-13-BE-en-15
144
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:
• 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.
1409
Grid incident
The Sunny Island disconnects from the utility grid due to prohibited feedback.
Corrective measures:
• Contact the Service.
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:
• Contact the Service.
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:
• Reduce power consumption of all loads.
• Reduce power output of the AC sources (e.g. PV inverter).
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:
• Reactivate the pre-fuse.
• Check the voltage supply at terminal
AC2
of the master in the main cluster.
