Heatsink temperature low

What does 66 mean?

The frequency converter's heatsink temperature, measured by a sensor in the IGBT module, is too low for safe operation. This indicates the unit is too cold to operate efficiently or without condensation risk. Operation at extremely low temperatures can affect component reliability and performance.

Complete Troubleshooting Guide

1. 1

   Ensure the ambient temperature surrounding the frequency converter is maintained within its specified operating range.

2. 2

   If necessary, implement measures to increase the room temperature or provide localized heating to the unit.

3. 3

   Configure parameters 2-00 (DC Hold/Preheat Current) to a small percentage (e.g., 5%) and 1-80 (Function at Stop) to continuously supply a trickle current for preheating.