SP1700

SAFETY PARAM ERROR

Fanuc · Alpha i Series Servo Amplifier

What does SP1700 mean?

The CNC CPU detected an error in 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 overall machine safety.

Common Causes

  • Safety parameter mismatch between CNC and servo drive.
  • Corrupted safety parameter data stored in CNC memory.
  • CNC CPU hardware issue affecting safety parameter storage or retrieval.
  • Inconsistent safety configuration across different CNC axes or functions.
  • Interruption during safety parameter initialization.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify safety parameters on CNC diagnostic screen against servo drive settings.

  2. 2

    Reload safety parameters from a validated backup in the CNC.

  3. 3

    Perform a CNC system reboot to clear temporary faults.

  4. 4

    Check CNC parameters related to safety configuration (e.g., P1-11).

  5. 5

    Ensure CNC battery backup is functional to maintain parameter integrity.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Fanuc Alpha i Series Servo Amplifier