Device unknown

What does 40 mean?

The frequency converter has detected an unknown or incompatible option board or drive, or there's a specific mismatch between power unit types (e.g., Power1 not same type as Power2, indicated by subcode S2). This signifies an incorrect or unrecognized hardware component has been installed. Using incompatible hardware can lead to malfunction or damage.

Complete Troubleshooting Guide

1. 1

   Verify that the installed option board or drive is compatible with the frequency converter model and version as per the manual.

2. 2

   If a subcode is available (e.g., S1 for unknown device, S2 for power unit type mismatch), use it to narrow down the specific issue.

3. 3

   If unable to resolve the compatibility issue, contact your Vacon distributor for further investigation and recommended components.