08080000 hex

Encoder Communications Disconnection Error

Omron · NJ/NX-series Machine Automation Controller

What does 08080000 hex mean?

A disconnection was detected because communications between the encoder and the Servo Drive were stopped more frequently than the specified value. This signifies unreliable or interrupted communication with the encoder.

Common Causes

  • The encoder is not wired correctly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect all encoder cable connections at both the encoder and the servo drive for tightness, corrosion, and proper seating.

  2. 2

    Visually inspect the entire length of the encoder cable for physical damage, cuts, crimps, or signs of wear.

  3. 3

    Verify the supply voltage to the servo drive and any auxiliary encoder power supplies meets the manufacturer's specifications.

  4. 4

    Check for proper grounding of the servo system and shielding integrity of the encoder cable to prevent electromagnetic interference (EMI).

  5. 5

    Verify the servo drive's encoder configuration parameters (e.g., encoder type, resolution, communication settings) match the physical encoder installed.

Browse all codes in this manual (96)
Verified technical data. Last updated: March 2026

Related Faults

Source: Omron NJ/NX-series Machine Automation Controller