Fagor alarm 4002: Parameter OPMODE different at the CNC and at the drive
CNC 8060/8065/8070 SERCOS error · Fagor 8060/8065/8070
What it means
The operating mode (position, velocity or torque telegrams) declared at the CNC does not match the mode configured in the drive. Both sides must agree on OPMODE for the cyclic channel to exchange valid commands and feedback.
Likely causes
- OPMODE edited only on one side (CNC table or DDSsetup)
- drive swapped for another unit with different telegram setup
- validation performed before drive parameters were saved
Need the part urgently?
Send us alarm 4002 with your machine details — typical RFQ turnaround is 24–48h.