11 Troubleshooting
SMA Solar Technology AG
Operating manualSTPxx-US-50-BE-en-1184
11.1.34 Event 7801
Event message:
• Fault overvoltage protector
Explanation:
One or more surge arresters have tripped or one or more surge arresters are not inserted correctly.
Corrective measures:
• Ensure that the surge arrester is inserted correctly.
• If surge arresters have tripped, replace the tripped surge arresters with new surge arresters.
11.1.35 Event 8501
Event message:
• Offset DC current sensor C.
Corrective measures:
• If this message is displayed again, contact the Service.
11.1.36 Event 8708
Event message:
• Timeout in communication for active power limitation
Explanation:
Communication to the system control absent. Depending on the fallback setting, either the last
received values will be retained or the active power will be limited to the set percentage value of
the inverter nominal power.
Corrective measures:
• Ensure that the connection to the System Manager is intact and that no cables are damaged
or that no plugs have been pulled.
11.1.37 Event 8709
Event message:
• Timeout in communication for reactive power setpoint
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