E.OPT

Option Fault

Mitsubishi Electric · Mitsubishi FR-E800 Variable Frequency Drive

What does E.OPT mean?

This fault appears under several conditions: if a plug-in option for torque command is selected (Pr.804) but no option is mounted, if a manufacturer setting switch on a plug-in option is changed, or if a communication option is connected while Pr.296 (Password lock level) is set to '0' or '100'. It indicates an incorrect configuration or an issue with an installed option.

Common Causes

  • Option module or expansion card fault.
  • The installed option board is not functioning correctly.
  • Incorrect installation of an option module.
  • Configuration error for the option module.
  • Hardware failure of the option card.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that the plug-in option for torque command setting is correctly connected and check the Pr.804 setting.

  2. 2

    Reset any manufacturer setting switches on the plug-in option back to their initial settings.

  3. 3

    To apply a password lock when installing a communication option, set Pr.296 to a value other than '0' or '100'.

Browse all codes in this manual (55)
Verified technical data. Last updated: March 2026

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Source: Mitsubishi FR-E800 Variable Frequency Drive