Mitsubishi Electric E.CPU

Brand: Mitsubishi ElectricModel: PLC (FX5U / iQ-R / iQ-F Series)Error code: E.CPU

What the Fault Means

CPU error (internal)

Likely causes

  • Firmware corrupted; hardware failure

Solution and Safe First Checks

  1. Cycle power; update firmware (FR Configurator2); replace drive if persistent

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Mitsubishi Electric error codes

Source: the Zeror.ai industrial fault database and Mitsubishi Electric technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.

Mitsubishi Electric E.CPU · Zeror.ai