49

Division by zero in application

Vacon · 100 FLOW Application Guide

What does 49 mean?

A division by zero error has occurred within the application program running on the frequency converter. This indicates a mathematical error in the custom logic.

Common Causes

  • Division by zero operation attempted within the application program.
  • Mathematical calculation in the application results in an undefined value (e.g., P1/P2 where P2=0).
  • Incorrect programming of a control loop or algorithm.
  • Input parameter leads to a zero divisor.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If you are the application programmer, review the application program logic for potential division by zero conditions.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Vacon 100 FLOW Application Guide