18230000 hex

Absolute Encoder Multi-rotation Counter Error

Omron · NJ/NX-series Machine Automation Controller

What does 18230000 hex mean?

The absolute encoder detected an error in its multi-rotation counting function. This is often caused by temporary issues like vibration, impact, condensation, or an internal encoder failure, leading to incorrect absolute position.

Common Causes

  • A temporary error occurred in the encoder multi-rotation detection function due to vibration, impact, or condensation.
  • Encoder failure.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the encoder for signs of physical impact, vibration, or moisture (condensation).

  2. 2

    Ensure the encoder is securely mounted and isolated from excessive vibration.

  3. 3

    Check environmental conditions (temperature, humidity) around the encoder.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Omron NJ/NX-series Machine Automation Controller