E.OPT

Option fault

Mitsubishi Electric · FR E700

What does E.OPT mean?

This fault appears when a communication option is connected, but the password lock (Pr. 296 = "0 or 100") is preventing its proper function. This issue specifically relates to the security settings for optional communication modules. Resolving it ensures the communication option can operate correctly.

Repair Steps

  1. 1

    Verify the Pr. 296 setting; if a password lock is desired, ensure Pr. 296 is set to a value other than "0" or "100" when installing communication options.

  2. 2

    If the problem persists, contact your sales representative for further assistance.

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Verified technical data. Last updated: March 2026