26

Startup prevented

Vacon · NX Liquid-Cooled Drive

What does 26 mean?

The start-up of the drive has been prevented. Subcodes specify the reason: S1 for prevention of accidental start-up, S2 if the START command is active when returning to READY state after Safe Disable, or S30 if START is active after system/application software download or application change.

Common Causes

  • Startup prevented due to missing configuration.
  • Internal error during initialization sequence.
  • Safety interlock active, preventing startup.
  • Invalid parameter settings for motor startup.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Cancel the prevention of start-up if it can be done safely through the drive's control interface.

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Verified technical data. Last updated: March 2026

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Source: Vacon NX Liquid-Cooled Drive