SMA SUNNY ISLAND 4.4M Operating Manual page 153

SMA Solar Technology AG
Event number Message, cause and corrective measures
1713
System failure
One line conductor of a Sunny Island is missing.
Corrective measures:
3803 DC overcurrent
Too much current is flowing through the DC connection of a Sunny Island.
Corrective measures:
6120 to 6135 Interference device
OCU watchdog has triggered (an error has occurred in the program sequence).
Corrective measures:
6316
Interference device
Fault of voltage/current measurement at ext. measure point of box to AC sub-distribution
(Multicluster-Box) phase L1 / L2 / L3.
Corrective measures:
6463 Interference device
Corrective measures:
6465 Interference device
Processor voltage in the device at L1 / L2 / L3 is incorrect.
Corrective measures:
Operating Manual
• Ensure that all circuit breakers of the Sunny Island inverters in the Multicluster-Box are
closed.
• Search for the missing line conductor and eliminate the error. To identify the missing line
conductor, measure the AC voltage between each line conductor and between the line
conductors and the neutral conductors with the loads connected. If an AC voltage
deviates from the nominal voltage by ±10%, the corresponding line conductor is
missing.
• Reset the off-grid system. For this, disconnect the off-grid system and restart.
• Reduce the power of the loads.
• Contact the Service (see Section 19, page 189).
• Ensure that the control and measuring cable between the Multicluster-Box and the
corresponding Sunny Island of the main cluster is correctly inserted. When doing so,
observe the correct sequence of the Multicluster-Box connections to the Sunny Island
inverters (see the Multicluster-Box documentation).
• Contact the Service (see Section 19, page 189).
• Contact the Service (see Section 19, page 189).
15 Troubleshooting
SI44M-80H-12-BE-en-10 153