Cause: Motor data identification activated comes when the motor data identification function has been activated. This function is crucial for the drive to accurately control the connected motor by learning its electrical characteristics.

a7991 motor data identification activated fault in siemens drive indicate that the drive has initiated the process of identifying the motor parameters (like resistance, inductance, etc.). This means the motor data identification routine is carried out at the next power-on command.

• No need to take any action.
• he motor data identification routine is carried out at the next power-on command.