E.PE

Parameter storage device alarm

Mitsubishi Electric · A500 Inverter

What does E.PE mean?

This function stops the inverter output if a fault occurs in the E2PROM device responsible for storing parameter settings. This issue might be related to an excessive number of write operations to the memory device, which can degrade its integrity.

Repair Steps

  1. 1

    Review the number of parameter write operations; frequent writes can degrade the E2PROM device.

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Verified technical data. Last updated: March 2026
Source: Mitsubishi Electric A500 Inverter
Mitsubishi Electric Error E.PE: Parameter storage device alarm — Troubleshooting Guide | ErrorLib