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View Full Version : Need Help! MCS exception processing alarm



scorchtool
09-19-2008, 09:38 PM
Hi guys,
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.

Shotout
09-20-2008, 02:29 AM
Hi guys,
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.

Have you checked the cable connections at the drive and the inverter? As I understand it that is the most common cause for that paticular error.

scorchtool
09-22-2008, 06:19 PM
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?