Cause : CU: Number of instances of a drive object type exceeded. The maximum permissible number of instances of a drive object type was exceeded.

Fault value (r0949, interpret hexadecimal):
ddccbbaa hex:
aa: Drive object type (p0107), for which the maximum permissible number of instances was exceeded.
bb: Max. permissible number of instances for this drive object type.
cc: Actual number of instances for this drive object type.
dd: No significance.

Remedy:

- power down the unit.
- suitably restrict the number of instances of a drive object type by reducing the number of inserted components.
- re-commission the unit.