FX3U-16MR-ES-A Mitsubishi Logic Module | 8 Relay Outputs, 8 Inputs, AC Power

FX3U-16MR-ES-A – Mitsubishi Electric FX3U Series Logic Module (8 Inputs / 8 Relay Outputs)

This logic module brings reliable relay output control to your machines. It packs 8 sink inputs and 8 relay outputs in a compact DIN-rail design. Simple to program with ladder logic, it handles small to mid-size automation tasks with ease.

Manager’s Insight

• Relay outputs handle up to 8A per point – drives small motors, solenoids, and contactors directly.
• Built‑in battery backup retains program and data during power loss.
• Multiple communication ports – RS232C, RS422, RS485, and USB give flexible connection options.
• Large program capacity – 64,000 steps support complex logic sequences.

Technical Specifications

• Brand & Series
  • Brand: Mitsubishi Electric
  • Series: FX3U
  • Model: FX3U-16MR-ES-A
  • Type: Logic Module
• I/O Configuration
  • Inputs: 8 (sink type)
  • Outputs: 8 (relay type)
  • Output current: 8A per point (resistive load)
• Power Supply
  • Voltage: 100‑240V AC
  • Frequency: 50/60 Hz
• Memory & Programming
  • Program capacity: 64,000 steps
  • Programming language: Ladder logic
  • Battery backup: Yes (retains program and data)
• Communication Ports
  • RS232C, RS422, RS485, USB
  • Supports programming, monitoring, and networking
• Physical & Environmental
  • Dimensions (L×W×D): 130 × 90 × 86 mm
  • Mounting: DIN rail
  • Operating temperature: 0°C to 50°C
  • Standards: UL, CE certified
• Display
  • Built‑in display: Yes (status indicators and basic info)

Expert Review

Controls engineers praise the FX3U-16MR-ES-A for its balanced I/O count and relay durability. The 8A relay outputs handle real-world loads without external interposing relays. Program capacity of 64,000 steps is generous for this class. Built‑in USB port makes programming quick even without a dedicated adapter. Battery backup adds peace of mind for critical applications. It’s a solid choice for small machines, conveyor sections, and retrofits.

Suitable Equipment & Application Scenarios

• Small Machines
  • Packaging machines
  • Labeling equipment
  • Small conveyor sections
• HVAC & Building Automation
  • Air handling units
  • Ventilation controls
  • Pump stations
• Industrial Retrofit
  • Upgrading old relay panels to PLC control
  • Adding logic to simple machinery
• Educational & Training
  • PLC training stations
  • University labs

Frequently Asked Questions (FAQ)

• What is the difference between sink input and source input?
  • Sink input connects common to +24V. The input turns on when the sensor provides a path to 0V. This FX3U model uses sink input type.
• Can I use this module with 24V DC power?
  • No. This model requires 100‑240V AC power. For 24V DC versions, consider FX3U-16MR-DS or similar DC-powered models.
• How do I connect a computer to program it?
  • Use the built‑in USB port with a standard USB cable. Alternatively, use RS232C or RS422 with appropriate adapters.
• Does the battery need regular replacement?
  • Battery life is approximately 5 years under normal conditions. A low-battery indicator alerts when replacement is needed.
• What software do I need for programming?
  • Use GX Works2 or GX Developer. Both support ladder logic for the FX3U series.

Selection Guide & Warranty Info

• Choose this model if you need:
  • Relay outputs for AC or DC loads up to 8A
  • 8 inputs and 8 outputs in a compact form
  • AC power supply (100‑240V)
  • DIN rail mounting for easy panel installation
• Shipping & Warranty
  • 12-month warranty covering defects in materials and workmanship
  • Same‑day shipping for orders before 2 PM (weekdays)
  • Delivery via FedEx, UPS, or DHL – express service available
  • Typical delivery time: 12‑24 hours for major regions

Contact Information

• Sales inquiries: sales@powergearx.com
• WhatsApp / Phone: +86 18030005825

Copyright © 2026 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/