SP9071
SAFETY PARAM ERROR
Fanuc · Alpha i Series Servo Amplifier
What does SP9071 mean?
The spindle detected a safety parameter error. This indicates an issue with the integrity or validity of spindle safety parameters, including No.4372, No.4438, No.4440, No.4442, and No.4448, potentially compromising spindle safety functions.
Common Causes
- Safety-related parameters are incorrectly configured or out of valid range.
- Parameter P3-01 (safety speed) or related safety limits are invalid.
- Checksum error on safety parameter data.
- Mismatched safety settings between different control units.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Set the spindle safety parameters (No.4372/No.4438/No.4440/No.4442/No.4448) again to ensure correct and consistent values.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i Series Servo Amplifier