Cause : Autotuning detected error comes when an error has been triggered during a motor autotune due to the motor cannot operate correctly during a tune in rotation.

"TNF" fault in Schneider ATV610 drive indicate Autotuning error. This means an issue during the autotuning process. This process is crucial for the drive to accurately control the motor.

1. Verify that the motor/device are compatible.
2. Verify that the "motor is connected to the device during autotuning".
3. If an output contactor is being used, verify that it is closed during autotuning.
4. Verify that the motor is present and stopped during autotuning.
5. In case of reluctance motor, reduce "PSI Align Curr Max" MCR.