Cause : CU: System limit exceeded. At least one system overload has been identified.

Fault value (r0949, decimal interpretation):
1: Computing time load too high (r9976[1]).
5: Peak load too high (r9976[5]).
See also: r9976 (System utilization)

Remedy:

Re fault value = 1, 5:
- reduce the computing time load of the drive unit (r9976[1] and r9976[5]) to under 100 %.
- check the sampling times and adjust if necessary (p0115, p0799, p4099).
- de-activate function modules.
- de-activate drive objects.
- remove drive objects from the target topology.
- note the DRIVE-CLiQ topology rules and if required, change the DRIVE-CLiQ topology.