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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

453

SPC SOFT DISCONNECT ALARM

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

What does 453 mean?

This alarm indicates a position-pole data error, often caused by Pulse coder failure or the entry of cutting fluid. Such an error suggests a problem with the fundamental position feedback mechanism.

Common Causes

  • Position-pole data error
  • Pulse coder failure
  • Entry of cutting fluid into the Pulse coder

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the Pulsecoder.

Browse all codes in this manual (38)
Verified technical data. Last updated: April 2026

Related Faults

1Inverter Internal Cooling Fan Stopped2Inverter Control Power Supply Undervoltage366PULSE MISS(INT)
Source: Fanuc Series 30i/31i/32i-MODEL B Plus
Open Manual (Page 159)Search more codes in this manual