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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.

7

Saturation Trip

Vacon · NX All-in-One Application

What does 7 mean?

This fault indicates an internal issue such as a defective component or a short-circuit/overload in the brake resistor circuit. If accompanied by Fault 1 (Overcurrent), it suggests a problem with the motor cable or the motor itself, leading to saturation conditions within the drive's output stage.

Common Causes

  • The magnetic flux in the motor core has reached saturation levels.
  • Over-excitation of the motor causing magnetic saturation.
  • Incorrect motor control parameters leading to saturation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Immediately switch off all power to the drive.

  2. 2

    If Fault 7 occurs concurrently with Fault 1 (Overcurrent), inspect the motor cables for damage or short circuits.

  3. 3

    If Fault 7 occurs concurrently with Fault 1, inspect the motor for insulation issues or internal damage.

Browse all codes in this manual (42)
Verified technical data. Last updated: April 2026

Related Faults

1Overcurrent10Input line supervision11Output phase supervision
Source: Vacon NX All-in-One Application
Open Manual (Page 372)Search more codes in this manual