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ErrorLib — Industrial Fault Code Library

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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. 1

    Set the spindle safety parameters (No.4372/No.4438/No.4440/No.4442/No.4448) again to ensure correct and consistent values.

Browse all codes in this manual (101)
Verified technical data. Last updated: April 2026

Related Faults

0233Velocity Pulse Count Exceeded0243Position Pulse Count Exceeded0434Velocity Loop Integral Gain Overflow
Source: Fanuc Alpha i Series Servo Amplifier
Open Manual (Page 126)Search more codes in this manual