Mitsubishi Electric 6000

Brand: Mitsubishi ElectricModel: PLC (FX5U / iQ-R / iQ-F Series)Error code: 6000

What the Fault Means

Serial communication error (FX5U built-in RS485)

Likely causes

  • Baud rate/parity mismatch; RS485 cable fault; address conflict

Solution and Safe First Checks

  1. Verify CH1/CH2 serial parameters; check cable (A+/B-); verify Modbus slave address

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 6000 · Zeror.ai