366

PULSE MISS(INT)

Fanuc · Series 30i/31i/32i-MODEL B Plus

What does 366 mean?

This internal alarm indicates a small signal amplitude from the Pulse coder, signifying a potential failure of the Pulse coder itself or interference from external noise. This can lead to inaccurate position feedback.

Common Causes

  • Small internal signal amplitude from the Pulse coder
  • Pulse coder failure
  • Noise affecting the Pulse coder signal

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the Pulsecoder.

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Verified technical data. Last updated: March 2026

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Source: Fanuc Series 30i/31i/32i-MODEL B Plus