Need some back up on this one, I have here a Crown-L1420 with OSP-U10L control.
Issue: Alarm A, 1151-20 Motion Control System exception processing, Spindle,5001000 ' #13 '
"A fatal alarm occured while the MCS inverter unit and MCS software are executing their processing"
'#13'-> IPM protective function activated
Not long ago we replaced the MIP22 spindle drive with a refurbished unit. Since then this alarm would appear every now and then but now it is frequent. I have my suspicions but would like to get some fresh perspective.
Thanks but it appears to be a inverter bridge problem within this 10 month old MIP 22 spindle drive. Oringinal info. supplied to me from day shift was incomplete as I found that the spindle drive itself had an alarm listed also.
Correct me if I wrong but don't these intelligent drives have overvoltage monitoring?