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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

080B0000

Safety Input Error

Omron · NJ/NX-series Machine Automation Controller

What does 080B0000 mean?

One or both of the photocouplers for safety inputs 1 and 2 have transitioned to an OFF state, triggering a safety error. This typically indicates an issue with the safety circuit integrity, such as a physical cable problem.

Common Causes

  • Safety input cable for inputs 1 or 2 is disconnected
  • Safety input cable for inputs 1 or 2 is broken

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Visually inspect the cables connected to safety inputs 1 and 2 for physical damage or disconnections.

  2. 2

    Measure continuity of the safety input cables for inputs 1 and 2.

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

Related Faults

04A10000Non-volatile Memory Hardware Error04A10000 hexNon-volatile Memory Hardware Error04AC0000 hexOvercurrent
Source: Omron NJ/NX-series Machine Automation Controller
Open Manual (Page 283)Search more codes in this manual