SP9070
ILLEGAL AXIS DATA
Fanuc · Alpha i Series Servo Amplifier
What does SP9070 mean?
The spindle detected a mismatch between the spindle amplifier connection state and its hardware setting. This alarm can be issued if the spindle amplifier configuration has been changed without corresponding software updates or if there is a wiring issue.
Common Causes
- Invalid or inconsistent axis data within the system's memory.
- Mismatch in motor encoder counts or resolutions.
- Configuration parameter for axis type or limits is incorrect.
- Data corruption related to axis calibration.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the physical connection state of the spindle amplifier.
- 2
Verify the spindle amplifier hardware settings for correctness.
- 3
If the spindle amplifier configuration was recently changed, correct the settings on the spindle amplifier side to match the actual configuration.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i Series Servo Amplifier