14 Troubleshooting
SMA Solar Technology AG
Operating manual
143
SI44M-80H-13-BE-en-15
Event number
Message, cause and corrective measures
1402
Grid incident
The voltage of the generator or the utility grid at the Sunny Island at line conductor Lxx is out-
side the configured thresholds (redundant measurement).
Corrective measures for generator:
• Change the voltage thresholds for the generator. As an aid to this, observe and
evaluate the measured values
Voltage of external grid connection Lxx
during
ongoing operation.
• If possible, adjust the generator voltage.
Corrective measures for utility grid:
• Contact the Service.
1403
Grid incident
The Sunny Island at line disconnector Lxx disconnects from the external energy source be-
cause the ratio of AC voltage and battery voltage is too high. Either the voltage at connec-
tion
AC2
is too high or the battery voltage too low.
Corrective measures:
• Contact the Service.
1404
Grid incident
The Sunny Island at line conductor Lxx disconnects from the utility grid due to phase conduc-
tor failure/overload at terminal
AC2
.
Corrective measures:
• Reduce the total power of the loads, e.g. by staggering their use over time.
• Ensure that there is not a short circuit present at connection
AC2
.
1405
Grid incident
A short circuit is present at connection
AC2
of the Sunny Island at line conductor Lxx.
Corrective measures:
• Contact the Service.
1407
Grid incident
Disconnection from the utility grid due to non-compliance with the voltage-frequency ratio at
line conductor Lxx
Corrective measures:
• Contact the Service.
