SP0976
No Amplifier Number Set (15i)
Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
What does SP0976 mean?
No amplifier number could be set for a serial spindle amplifier for Series 15i. This can happen if the amplifier is not detected or there's a configuration issue preventing its assignment.
Common Causes
- The system could not assign a unique amplifier number to a serial spindle amplifier.
- The amplifier is already assigned to another spindle, causing a conflict.
- The amplifier's address setting is incorrect or unreadable.
- A hardware failure preventing the system from recognizing the amplifier's identity.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify that parameter P1-05 (Motor Number) is uniquely set for each spindle.
- 2
Check the physical DIP switches or rotary dials on the spindle amplifier for its address setting.
- 3
Ensure no other device on the system is using the same amplifier number.
- 4
Attempt to read the amplifier's configured address directly from its interface.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc AC Spindle Motor Alpha i-Beta i Series Parameters