Hi,
I have okuma MC4VA with OSP5000M, from yesterder I have a problem with her:
1. Spindle can't start, and there is no alarm on OSP5000 monitor and no alarm in spindle drive unit
2. After about 15 seconds alarm occurs on OSP5000 monitor "557 ALARM B Spindle pulse generator"
I have read in alarm list that possibly there is a problem with:
1) Defective pulse generator
2) Defective ECP card 3
How can I diagnoze which part is defective, where I can find "pulse generator" ?? And maybe someone know hot to fix this ?
Thank you.