PW0015

SAFETY PARAM ERROR

Fanuc · Alpha i Series Servo Amplifier

What does PW0015 mean?

The CNC detected an error for the safety parameter check function. This indicates a potential issue with the integrity or validity of safety-related parameters within the CNC system, which could compromise machine safety. A power cycle is required.

Common Causes

  • Safety parameter mismatch detected by the CNC system.
  • Corruption of safety parameter data within the CNC memory.
  • Internal CNC hardware fault impacting safety parameter validation.
  • Inconsistent safety configuration across CNC modules or axes.
  • Power interruption during safety parameter loading.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify CNC safety parameters against established configuration standards.

  2. 2

    Reload safety parameters from a verified project backup.

  3. 3

    Perform a CNC system restart.

  4. 4

    Check CNC parameters related to safety function settings (e.g., P1-21).

  5. 5

    Ensure the CNC battery is functioning correctly for parameter retention.

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

Related Faults

Source: Fanuc Alpha i Series Servo Amplifier