Fanuc alarm SP9050: SPINDLE CONTROL OVER SPEED
spindle alarm (serial spindle, alpha i) · Fanuc 0i-D
What it means
The speed command in spindle synchronization control exceeded the permitted maximum. When two spindles run synchronized (e.g. tandem or synchronous turning), the derived command for the slave spindle went beyond its limit.
Likely causes
- Master spindle commanded above the slave's capability
- Wrong maximum-speed parameters for the synchronized pair
- Program commanding speeds invalid for the gear range in use
Need the part urgently?
Send us alarm SP9050 with your machine details — typical RFQ turnaround is 24–48h.