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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.

8

System Fault

Vacon · NX All-in-One Application

What does 8 mean?

This fault indicates a general system malfunction or a defective internal component. Subcodes provide more specific details, such as issues with the charging switch (S7), lack of power to the driver card (S8), or communication problems within the power unit for transmission (S9), trip signals (S10), or measurement data (S11).

Common Causes

  • A general internal system error detected by the device's diagnostics.
  • A combination of minor faults has led to a critical system failure.
  • Hardware malfunction within the control unit itself.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reset the fault through the control panel.

  2. 2

    Attempt to restart the drive.

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