Zeror.ai Error Codes Mitsubishi Electric E.MB1/MB2/MB3

Mitsubishi Electric E.MB1/MB2/MB3

Brand: Mitsubishi ElectricModel: PLC (FX5U / iQ-R / iQ-F Series)Error code: E.MB1/MB2/MB3

What the Fault Means

Brake sequence fault

Likely causes

  • Brake feedback signal not received within sequence time

Solution and Safe First Checks

  1. Check brake MC feedback wiring; adjust Pr.278/Pr.279 (brake timing); check 24 V to brake

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.MB1/MB2/MB3 · Zeror.ai