A02051 alarm in siemens 6RA80 DC Drive indicate that the recording not possible as a result of know-how protection. This means TRACE recording is not possible as at least one signal or trigger signal being used is under know-how protection.

1. Temporarily activate or deactivate know-how protection (p7766).
2. Include the signal in the OEM exception list (p7763, p7764).
3. Where relevant do not record of the signal.