Cause : ACX: Parameter back-up file missing. When downloading the device parameterization, a parameter back-up file associated with a drive object cannot be found.

Remedy:

If you have saved the project data using the commissioning software, carry out a new download for your project. Save using the function "Copy RAM to ROM" or with p0977 = 1 so that all of the parameter files are again completely written to the non-volatile memory.

If you have not saved the project data, then first commissioning of the system has to be carried out again.