11 Troubleshooting
SMA Solar Technology AG
Operating manualSTP50-4x-BE-en-23106
Event number Message, cause and corrective measures
9005
Changing of grid parameters not possible > Ensure DC supply
This error can have the following causes:
• The parameters to be changed are protected.
• The DC voltage at the DC input is not sufficient to run the main CPU.
Corrective measures:
• Enter the SMA Grid Guard code.
• Ensure that at least the DC start voltage is available (green LED is
flashing, pulsing or glowing).
9007
Abort self-test
The self-test (Italy only) was terminated.
Corrective measures:
• Ensure that the AC connection is correct.
• Restart the self-test.
9033
Rapid Shutdown was triggered
The inverter detected the triggering of a Rapid Shutdown. The AC side of the
inverter was disconnected.
9034
Error in Rapid Shutdown System
This message can have the following causes:
• The Rapid Shutdown Function was not correctly configured.
• The PV array could not be correctly disconnected. Voltage can be
applied to the DC inputs of the inverter.
• The standby voltage of all PV array disconnect switches of a string is >
30V.
Corrective measures:
• Check the configuration of the Rapid Shutdown function and ensure that
the operating mode selected is selected according to the DC
disconnection unit used.
• Check the functionality of the PV array disconnect switches.
• Check the standby voltage of the PV array disconnect switches used and
ensure that the standby voltage of all PV array disconnect switches of a
string < 30V.
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