18230000

Absolute Encoder Multi-rotation Counter Error

Omron · NJ/NX-series Machine Automation Controller

What does 18230000 mean?

The absolute encoder's multi-rotation counter detected an error, indicating a discrepancy in its tracking of motor rotations. This can be caused by environmental factors or an internal encoder malfunction.

Common Causes

  • Temporary error in encoder multi-rotation detection function due to vibration
  • Temporary error in encoder multi-rotation detection function due to impact
  • Temporary error in encoder multi-rotation detection function due to condensation
  • Absolute encoder hardware failure

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the encoder mounting for excessive vibration or impact.

  2. 2

    Check for signs of condensation or moisture near the encoder.

  3. 3

    Verify the encoder's operational environment against specifications.

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Verified technical data. Last updated: March 2026

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Source: Omron NJ/NX-series Machine Automation Controller