Frequency
converter
caused
an
emergency stop.
VEC monitors SH contractor. If safety circuit opens, PVEC can detect this event before Travel Control does. Therefore,
this event
can also be caused by a safety circuit problem
See measures and comments for SH_FAULT.
Actions to be taken:
- Look at Motor Control Event Log.
I have replaced SH contractor on all 4 units. No issues with the safety circuit. Believe me I’ve made sure all plugs are seated and wiggled every wire I can find trying to duplicate or prevent the problem.
If one faults out and shuts down. They ALL fault out and shut down
