SMA SUNNY ISLAND 4.4M Operating Manual page 147

SMA Solar Technology AG
Event number Message, cause and corrective measures
1706
System failure
A contactor in the Multicluster-Box is not functioning correctly.
Corrective measures:
1707
Stand-alone grid
An overvoltage has occurred at connection AC1 of the Sunny Island at line conductor Lxx.
Corrective measures:
1708
Stand-alone grid
An overfrequency has occurred at connection AC1 of the Sunny Island at line conductor Lxx.
Corrective measures:
1709
Stand-alone grid
An underfrequency has occurred at connection AC1 of the Sunny Island at line conductor
Lxx.
Corrective measures:
Operating manual
• Reset the off-grid system. For this, disconnect the off-grid system and restart.
• Start the installation assistant and reconfigure multicluster operation
• Contact the Service.
• Ensure that the Sunny Island is functional. For this, disconnect all AC sources and loads
from the Sunny Island and restart the Sunny Island.
• Find the cause of the overvoltage through measurement and step-by-step connection of
the AC sources and loads.
• Ensure that the Sunny Island is functional. For this, disconnect all AC sources and loads
from the Sunny Island and restart the Sunny Island.
• Find the cause of the overvoltage through measurement and step-by-step connection of
the AC sources and loads.
• Ensure that the Sunny Island is functional. For this, disconnect all AC sources and loads
from the Sunny Island and restart the Sunny Island.
• Find the cause of the underfrequency through measurement and step-by-step connection
of the AC sources and loads.
14 Troubleshooting
SI44M-80H-13-BE-en-15 147