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Siemens Fault 0a7991 Best __full__

Mismatched telegram settings between the PLC and the Drive.

: This often indicates a communication issue between the PLC and the drive. Check your network cables and ensures the PLC is sending the correct control word (bit 10 must be "1" for PLC control). siemens fault 0a7991 best

Ensure the motor is at a standstill and the configuration is complete. Mismatched telegram settings between the PLC and the Drive

The fault code breaks down as follows:

The drive is receiving an active "OFF" command while you are trying to start the identification process. siemens fault 0a7991 best