EL
ErrorLib
Brands
||
  1. Home
  2. Mitsubishi Electric
  3. Mitsubishi FR-E800 Variable Frequency Drive
  4. E.OPT
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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: April 2026

Related Faults

CFContinuous operation during communication faultDIPDuplicate IP addressE.1Option Fault / Internal Contact Failure
Source: Mitsubishi FR-E800 Variable Frequency Drive
View Official PDFSearch more codes in this manual