Zeror.ai Error Codes Omron E09

Omron E09

Brand: OmronModel: PLC (CP1L / CP2E / NX / NJ Series)Error code: E09

What the Fault Means

Under-voltage (UV)

Likely causes

  • Supply voltage drop; phase loss; input fuse blown

Solution and Safe First Checks

  1. Check 3-phase supply; replace fuse; add line reactor

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

Related Omron error codes

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