FX3U-32MR-ES-A Micro PLC – Mitsubishi FX3U High-Speed Programmable Logic Controller

FX3U-32MR-ES-A – Mitsubishi FX3U Series Micro Programmable Logic Controller (PLC)

FX3U-32MR-ES-A is a high-performance relay output PLC from Mitsubishi FX3U series. It delivers 32 I/O points, fast processing, and excellent expandability for factory automation.

Controller Overview & Core Architecture

• Mitsubishi FX3U Series – Third Generation High-Function Micro PLC
  • Model: FX3U-32MR-ES-A – Basic Unit (Relay Output)
    • Power & Electrical
      • ▪ Supply voltage: 100-240V AC (wide range)
      • ▪ Power consumption: 35W
      • ▪ Internal DC5V power capacity: 900mA
      • ▪ DC24V service power supply: 400mA
    • I/O Configuration
      • ▪ Total I/O points: 32 points (built-in)
      • ▪ Input points: 16 points (DC input, sink/source)
      • ▪ Output points: 16 points (relay output type)
      • ▪ Max expansion: up to 256 I/O points with extension modules
      • ▪ Using CC-Link remote I/O: up to 384 points
    • Processing & Memory
      • ▪ CPU speed: 0.08 µs per basic instruction (fast execution)
      • ▪ Built-in RAM: 8K steps (expandable to 16K steps)
      • ▪ High-speed processing for complex logic
    • Physical Dimensions
      • ▪ Size (WxHxD): 150 x 90 x 86 mm
      • ▪ Weight: 0.65 kg

High-Speed & Advanced Functions

• Built-in High-Speed Processing
  • ▪ Basic instruction speed: 0.08 µs – fast scan times
  • ▪ Built-in positioning: 2 axes independent, max 20kHz (transistor type; relay version supports via extension)
  • ▪ High-speed counters and interrupts for real-time control
• Communication & Networking
  • ▪ CC-Link master/slave support – connect remote I/O, up to 384 points
  • ▪ Network communication: Ethernet, RS-232, RS-485 (via expansion boards)
  • ▪ Data recording function for production traceability
• Expandability & Flexibility
  • ▪ Right-side expansion: I/O modules, analog modules, special function modules
  • ▪ Quick-disconnect terminal block – easy wiring and maintenance
  • ▪ Supports up to 256 local I/O points, plus CC-Link remote I/O

Installation & Maintenance Simplicity

• Easy Wiring
  • ▪ Removable terminal blocks – swap units without rewiring
  • ▪ Relay output handles up to 2A per point (resistive load)
  • ▪ Input signal power: 40mA at DC24V
• Maintenance Friendly
  • ▪ Quick-disconnect design saves downtime during replacement
  • ▪ Built-in diagnostics and error history
  • ▪ No special tools required for module installation

System Expansion & Compatibility

• Extension Modules
  • ▪ Input/output expansion units (up to 256 total points)
  • ▪ Analog control modules (temperature, pressure, voltage/current)
  • ▪ Positioning modules, high-speed counter modules
  • ▪ Communication adapters (RS-232, RS-485, Ethernet)
• Legacy Compatibility
  • ▪ Compatible with FX2N series expansion modules
  • ▪ Seamless migration from FX2N to FX3U

Expert Review & Manager’s Insight

• Field Engineer Perspective
  • ▪ “FX3U-32MR-ES-A delivers reliable relay switching for machine control. The quick-disconnect terminal block cuts wiring time by half.”
  • ▪ “High-speed processing (0.08µs) handles complex ladder logic without lag. Perfect for packaging machines and conveyor systems.”
• Product Manager Insight
  • ▪ “This PLC offers the best balance of I/O capacity and expandability. With CC-Link support, it scales from standalone machines to full production lines.”
  • ▪ “Relay output type is ideal for applications with frequent switching of AC loads. Built-in positioning functions reduce need for extra modules.”

Suitable Devices & Application Scenarios

• Common Applications
  • ▪ Packaging machinery – filling, sealing, labeling machines
  • ▪ Conveyor control systems with motor starters and sensors
  • ▪ Small to medium assembly lines – automotive parts, electronics
  • ▪ HVAC control, water treatment, and building automation
  • ▪ Material handling – palletizers, sorting systems
• Compatible Equipment
  • ▪ Sensors: proximity switches, photoelectric sensors, encoders
  • ▪ Actuators: contactors, relays, solenoid valves, small motors
  • ▪ HMI: Mitsubishi GOT2000 series touch panels
  • ▪ Drives: Mitsubishi inverters (via CC-Link or RS-485)

Frequently Asked Questions (FAQ)

• What is the difference between FX3U-32MR-ES-A and FX3U-32MT-ES-A?
  MR stands for relay output. MT stands for transistor output (sink/source). Relay handles AC/DC loads up to 2A, good for frequent on/off but slower switching. Transistor is faster and better for high-speed positioning.
• Can I expand I/O points beyond 32 with this base unit?
  Yes. Connect expansion modules to the right side. Max local I/O is 256 points. With CC-Link remote I/O, total can reach 384 points. Works with analog, temperature, and special modules.
• What software do I need to program FX3U-32MR-ES-A?
  Use Mitsubishi GX Works2 or GX Developer. Supports ladder logic, structured text, and instruction list. Built-in simulation helps test before deployment.
• Experience-based: How to maintain the relay output for long life?
  Use external relays or contactors for heavy loads. Avoid switching inductive loads without snubber circuits. Relays are replaceable but proper load sizing extends lifespan.
• Buying guide: What warranty and shipping do you offer?
  12 months warranty from shipment date. 12-24 hour dispatch on business days. Express delivery via FedEx, UPS, DHL with worldwide tracking. Contact us for bulk orders.

• Which PLC should I choose: FX3U or FX5U?
  FX3U is a proven, cost-effective choice with vast expansion options. FX5U offers built-in Ethernet, analog, and faster system bus. Choose FX3U for legacy integration or relay output needs.

Contact & Order Support

• ▪ Email: sales@powergearx.com for quotes and technical questions
• ▪ WhatsApp: +86 18030005825 – fast response within 24h
• ▪ Shipping: FedEx, UPS, DHL express – 12-24h dispatch, worldwide delivery

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