080B0000 hex
Safety Input Error
Omron · NJ/NX-series Machine Automation Controller
What does 080B0000 hex mean?
At least one of the input photocouplers for safety inputs 1 and 2 has turned OFF, indicating a potential safety circuit issue. This implies a broken or disconnected safety cable affecting the safety interlock.
Common Causes
- The cable is disconnected or broken.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect the safety input cables (safety inputs 1 and 2) for disconnection or physical damage.
- 2
Verify continuity of the safety input cables using a multimeter.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron NJ/NX-series Machine Automation Controller