Mitsubishi Electric FX3U-485-BD Installation Manual

Installation guide for the Mitsubishi Electric FX3U-485-BD RS-485 communication expansion board, covering wiring, mounting, and specifications.

Brand: Mitsubishi Electric
Category: Industrial Robot
Document type: Installation Guide
Language: English
Pages: 1
File format: PDF
File size: 226 KB
Published: 23 October, 2026
Updated: 23 October, 2026
MD5 checksum: E2D2DB45C5BCD2BC3B8929C1A78889ED
PDF: Mitsubishi Electric FX3U-485-BD Installation Manual PDF

About this manual

This manual provides installation instructions and safety precautions for the FX3U-485-BD, an expansion board equipped with a European terminal block for RS-485 communication. It details the physical layout, mounting requirements, and necessary precautions to prevent electric shock or equipment damage during installation and maintenance.

What's inside

Safety Precautions
Outline
Installation
Specifications
Applicable PLCs
Communication Specifications
Disposal
Transport and Storage

Specifications

Power supply	5V DC, 40 mA
Transmission standard	RS-485/RS-422
Maximum transmission distance	50 m (164ft)
Communication method	Half-duplex
Mass	20g (0.05lbs)

Frequently asked questions

Can multiple FX3U-485-BD boards be used on one main unit?

No, only one expansion board can be used per main unit.

What is the maximum transmission distance for this communication board?

The maximum transmission distance is 50 m (164ft).

What power supply voltage and current does this board require?

It requires 5V DC at 40 mA supplied from the main unit.

Which PLC models are compatible with this expansion board?

It is compatible with FX3U Series PLC Ver.2.20 or later and FX3UC-32MT-LT Ver.1.00 or later.

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