Mitsubishi Electric FX3U-80MT/DS FX3U Series PLC Base Unit

Description

Designed for demanding industrial control applications, the FX3U-80MT/DS serves as a high-speed, expandable controller within the MELSEC FX3U series. This compact programmable logic controller (PLC) features a dual-bus architecture, allowing for the integration of standard FX2N/FX3U expansion blocks alongside specialized high-speed analog and communication adapters. Equipped with 40 DC inputs and 40 transistor outputs, this base unit delivers precise machine-level control and robust processing performance for automated machinery.

The unit operates on a 24V DC power source, making it highly suitable for mobile, marine, and decentralized industrial power architectures. It incorporates high-speed counter inputs and pulse outputs directly on the main board, simplifying positioning and motion control applications without requiring external hardware modules.

Features

• Dual-Bus Architecture: Supports left-side adapter bus (ADP) for high-speed communication and analog modules, plus right-side expansion bus for standard I/O and special function blocks.
• High-Speed Processing: Instruction execution speeds down to 0.065 microseconds per basic instruction.
• Versatile Inputs: 40 integrated 24V DC inputs configurable as sink or source.
• Solid-State Outputs: 40 integrated transistor outputs (sink type) for rapid switching cycles and long operational life.
• Expanded Memory: 64,000 steps of internal RAM programming memory, expandable with optional flash memory cassettes.
• Integrated Motion Control: Supports high-speed counters up to 100 kHz and independent pulse train outputs for stepper or servo drive positioning.

Applications

• Packaging machinery and automated wrapping systems
• Material handling systems and multi-axis conveyor control
• Water and wastewater treatment distribution panels
• Assembly line automation and test bench systems
• Food and beverage processing machinery

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting Clearance: Install the PLC horizontally on a standard 35mm DIN rail. Maintain at least 50 mm clearance above and below the unit to ensure adequate ventilation.
• Grounding Requirements: Connect the ground terminal to an independent grounding point with a resistance of 100 ohms or less (Class D grounding). Do not share grounding lines with high-power equipment.
• Wiring Protection: Use appropriate terminal lugs and verify terminal block screws are torqued to the specified limits (0.5 to 0.8 N-m) to prevent loose connections.
• Shielding: Route high-voltage AC lines away from low-voltage DC input/output signals and communication cables to minimize electromagnetic interference.

Compliance and Certifications

• CE (Electromagnetic Compatibility Directive)
• UL Listed (US and Canadian safety standards)
• KC (Korea Certification)