FX3U-CNV-BD MITSUBISHI MELSEC FX3U Expansion Board Adapter

The FX3U-CNV-BD MITSUBISHI (Model: FX3U-CNV-BD) is an essential expansion conversion board designed specifically for Mitsubishi Electric MELSEC FX3U Series compact PLCs. Installed directly into the front option slot of an FX3U base unit, the FX3U-CNV-BD MITSUBISHI acts as a signal bridge, allowing high-speed analog, communication, and positioning special function adapters (left-side expansion adapters) to connect to the PLC main processing bus.

By adding the FX3U-CNV-BD MITSUBISHI to your FX3U controller, you unlock the ability to stack up to two left-side expansion adapters—such as RS-232/RS-485 communication boards, analog input/output adapters, or Ethernet interface units. Its compact form factor mounts flush under the FX3U front cover, maintaining panel space efficiency while enabling flexible control system expansion.

Key Features of the FX3U-CNV-BD MITSUBISHI

• Adapter Bus Enablement: Required interface board to connect left-side FX3U special function adapters to the main CPU base unit.

• Direct Front Slot Mounting: Mounts neatly inside the option port under the FX3U front cover without adding external width.

• Multi-Adapter Support: Enables installation of high-speed communication (RS-232C, RS-485, Ethernet) and analog expansion adapters.

• Zero Configuration Required: Hardware-level signal conversion with full plug-and-play transparent bus pass-through.

• Durable Industrial Construction: Heavy-duty internal connector pins ensure vibration resistance and reliable electrical connection.

• Cost-Effective System Flexibility: Modular upgrade design allows easy field expansion of existing FX3U control panels.

Primary Applications

• Communication Gateway Setup: Interfacing FX3U controllers with HMIs, barcode scanners, or field instruments via RS-232/RS-485 adapters

• Process Signal Expansion: Connecting multi-channel analog input or output adapters for temperature, level, and pressure monitoring

• Marine & OEM Panels: Facilitating compact telemetry and engine panel control additions without expanding rail space

Technical Specifications

Package Contents

• 1 × FX3U-CNV-BD MITSUBISHI Expansion Conversion Board

• Mounting Screws & Installation Datasheet