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
Verify CNC safety parameters against established configuration standards.
- 2
Reload safety parameters from a verified project backup.
- 3
Perform a CNC system restart.
- 4
Check CNC parameters related to safety function settings (e.g., P1-21).
- 5
Ensure the CNC battery is functioning correctly for parameter retention.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i Series Servo Amplifier