Cause : STOP A initiated comes when the drive is stopped via a STOP A (pulses are suppressed via the safety shutdown path of processor 1).

Possible causes:

- stop request from processor 1.
- Pulses not suppressed after test stop selection.
- subsequent response to the message C30706 "SI Motion P2: SAM/SBR limit exceeded".
- subsequent response to the message C30714 "SI Motion P2: Safely-Limited Speed exceeded".
- subsequent response to the message C30701 "SI Motion P2: STOP B initiated".

1. remove the cause of the fault on the monitoring channel of processor 1.
2. check the shutdown path of processor 2.
3. carry out a diagnostics routine for message C30706.
4. carry out a diagnostics routine for message C30714.
5. carry out a diagnostics routine for message C30701.
6. replace Power Module.
7. replace Control Unit.