I have the same issue. We are using 7 drive on communication. 6 is working without any issue. Only one drive is not working. At FbDrive Bad parameter value is 1 and ModErr parameter value is 1. This VFD was also working 5 days ago. Suddenly after one power cycle it had stopped working from DCS. Rightnow this is being operated from CDP of VFD. Values at PZDIn1 & PZDIn2 are updating with various values when started or stopped the VFD from CDP.

On faceplate it shows "Motor Protection" status, and I am unable to reset it from faceplate.

Please advise what should I check.

Regards

------------------------------------------------------------------------------------------
Split from FBDrive problem.