Event number Display message, cause and corrective measures
9002
Inst. code invalid
The SMAGridGuard code entered is not correct. The operating parameters
are still protected and cannot be changed.
Corrective measures:
• Enter the correct SMAGridGuard code.
9003
Grid parameter locked
The parameters are now locked. You cannot change the parameters.
Corrective measures:
• Unlock the parameters with the SMAGridGuard code.
10.3 Event Messages
Display message Cause
Update file OK The update file found is valid.
Grid parameter locked The parameters have been locked and cannot be changed.
Update communication The inverter is updating the communication component.
Update main CPU The inverter is updating the inverter component.
Update Bluetooth The inverter is updating the Bluetooth component.
Update language table The inverter is updating the language table.
Update completed The inverter has successfully completed the update.
Grid parameter unchanged The selected rotary switch position is not assigned or the grid param-
eters cannot be changed.
Inst. code valid The SMAGridGuard code entered is valid. Protected parameters
have now been unlocked and you can adjust the parameters. The
parameters will be automatically locked again after ten feed-in
hours.
Self-test The self-test is being carried out.
10 Troubleshooting
SMA Solar Technology AG
Service Manual 27STP5-12TL-20-SG-en-12