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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.

6

Emergency Stop Triggered

Vacon · NX Liquid-Cooled Drive

What does 6 mean?

A stop signal has been received from an option board, indicating activation of the emergency stop circuit. This fault causes the drive to stop immediately.

Common Causes

  • External emergency stop signal activated.
  • Internal emergency stop logic triggered by safety circuits.
  • Faulty emergency stop button wiring or device.
  • Safety interlock circuit activated.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the emergency stop circuit and all connected safety devices and wiring to determine the source of the stop signal.

  2. 2

    Verify the status of all emergency stop buttons and safety interlocks in the system.

Browse all codes in this manual (52)
Verified technical data. Last updated: April 2026

Related Faults

1Overcurrent10Input Phase Failure12Brake Chopper Supervision Fault
Source: Vacon NX Liquid-Cooled Drive
Open Manual (Page 151)Search more codes in this manual