EHR

Ethernet communication fault

Mitsubishi · FR-E800 Variable Frequency Drive

What does EHR mean?

This fault appears when Ethernet communication is interrupted by physical factors, especially when Pr.1431 (Ethernet signal loss detection function selection) is set to a value between '1' and '3'. It signifies a physical layer problem with the Ethernet connection to the inverter.

Complete Troubleshooting Guide

  1. 1

    Ensure the Ethernet board is securely connected and seated.

  2. 2

    Check that the Ethernet cable is properly connected to the Ethernet connector and is not damaged or broken.

Source: Mitsubishi Manual