SP9016

RAM ERROR 16

Fanuc · Alpha i Series Servo Amplifier

What does SP9016 mean?

An error occurred in a spindle RAM test within the spindle amplifier module (SSPA). This indicates a hardware fault in the SPM unit's memory, requiring replacement of the SPM unit.

Common Causes

  • RAM integrity check failed (specific to RAM error 16).
  • Possible hardware failure in the control unit's RAM modules.
  • Data corruption in volatile memory.
  • Power fluctuations affecting RAM stability.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the SPM unit.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Fanuc Alpha i Series Servo Amplifier