Analog input fault

Analog Input Fault

Mitsubishi · FR-D700 Inverter (Basic)

What does Analog input fault mean?

A voltage (or current) has been input to terminal 4 when the setting in Pr. 267 Terminal 4 input selection and the physical voltage/current input switch on the inverter are mismatched. This incorrect input configuration can lead to erroneous frequency commands, unstable operation, or potentially damage the analog input circuit if not corrected.

Complete Troubleshooting Guide

  1. 1

    If intending current input, ensure a current signal is provided, Pr. 267 Terminal 4 input selection is set for current input, AND the physical voltage/current input switch is set to 'I' (current).

  2. 2

    If intending voltage input, ensure a voltage signal is provided, Pr. 267 Terminal 4 input selection is set for voltage input, AND the physical voltage/current input switch is set to 'V' (voltage).