SI Motion CU: Checksum error safety monitoring functions

What does 201680 mean?

The checksum calculated by the drive for safety-relevant parameters (r9728) does not match the reference checksum (p9729) saved during the last machine acceptance. This indicates that safety-relevant parameters have been altered or an internal fault is present, compromising the integrity of the safety monitoring functions. This fault results in a STOP A that can be acknowledged.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If no changes were made, diagnose for internal faults within the Control Unit affecting safety parameter integrity or memory.

2. 4

   Perform a Power ON reset after addressing the underlying issue to re-evaluate the checksum.