Checksum error in parameter set 1

What does PR1 mean?

A fault occurred when loading parameter set 1, which could be due to an interruption during transmission via the keypad or incompatibility between the stored parameters and the loaded software version. The Lenze setting is loaded automatically.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Store the parameter set under C0003 = 1 first to allow for a faults reset.