E.LF

Output phase loss

Mitsubishi Electric · FR E700

What does E.LF mean?

An output phase loss fault occurs if one of the three output phases (U, V, W) to the motor is lost during inverter operation (excluding specific conditions). This can cause motor damage due to imbalanced currents and will stop the inverter output. Protection is selected via Pr. 251.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Review and adjust the Pr. 251 (Output phase loss protection selection) setting as required.

Source: FR E700
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