60

External interlock activated

Danfoss · VLT HVAC Drive High Power

What does 60 mean?

An external interlock, configured to stop the drive, has been activated via a digital input. This prevents the drive from operating until the interlock condition is cleared and a reset signal is sent, ensuring safety or process integrity.

Complete Troubleshooting Guide

  1. 1

    Identify the terminal programmed for external interlock and apply 24 V DC to it to deactivate the interlock signal.

  2. 2

    Send a reset signal to the frequency converter via serial communication, digital I/O, or by pressing the [Reset] button.

  3. 3

    Troubleshoot the external interlock circuit or connected device for why the interlock was activated.