14

Frequency converter overtemperature

Vacon · NX All-in-One Application

What does 14 mean?

The heatsink temperature of the power unit has exceeded safe operating limits, specifically over 90 °C (194 °F), or 77 °C (170.6 °F) for NX_6 and FR6 series. An alarm triggers when the temperature surpasses 85 °C (185 °F), or 72 °C (161.6 °F). This indicates inadequate cooling or excessive internal heat generation, which can lead to component damage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Measure the ambient air temperature directly surrounding the drive enclosure — ensure it remains within the drive's specified operating temperature range.

  2. 4

    Review the drive's switching frequency parameter settings — consider reducing it if it is set too high in relation to the ambient temperature and motor load.

Source: Vacon NX All-in-One Application
Open Manual (Page 373)