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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.

45

Option Board Type Mismatch

Vacon · NX Liquid-Cooled Drive

What does 45 mean?

An option board of a different or incorrect type has been detected in a slot. This indicates a hardware configuration mismatch between the inserted board and the expected or previously configured type. Subcodes S1-S5 specify the board type (Control, Control unit, Power board, Power unit, Adapter board & slot).

Common Causes

  • Installed option board is not recognized or incompatible.
  • Option board wiring or connection issue.
  • Incorrect option board type selected in parameters (P0450).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reset the fault.

  2. 2

    Verify the type of option board installed against the required or configured type for that slot.

  3. 3

    Set the option board parameters again, ensuring they match the characteristics of the newly installed or corrected board.

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 156)Search more codes in this manual