08090000 hex
Encoder Communications Error
Omron · NJ/NX-series Machine Automation Controller
What does 08090000 hex mean?
A communication error has occurred with the encoder, indicating an issue with data transmission or receipt. This can be caused by low power supply to the encoder or electrical interference (noise).
Common Causes
- The power supply voltage of the encoder is low.
- Noise affecting communication signals.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Measure the power supply voltage supplied to the encoder and ensure it is within specifications.
- 2
Implement noise countermeasures on the encoder cable and power supply lines.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron NJ/NX-series Machine Automation Controller