Product Introduction
When rising operational costs demand efficient control solutions, the Mitsubishi FX3U-80MR-ES-A delivers reliable performance without unnecessary complexity. This FX3U Series Programmable Controller integrates 80 I/O points—40 digital inputs and 40 relay outputs—to handle medium-scale automation tasks. Powered by 100-240 VAC and consuming only 50 W, it keeps energy expenses low while maintaining robust functionality. Part of the MELSEC-F series, the FX3U-80MR-ES-A is designed for applications where budget and reliability must coexist.
Technical Specifications Breakdown
The FX3U-80MR-ES-A offers a program memory of 64K steps using RAM, enabling complex logic sequences. Cycle times of 65 ns for LD instructions and 642 ns for MOV operations ensure fast processing, reducing machine cycle times and boosting throughput. With local I/O capacity of 256 points and support for up to 384 points when including remote I/O, this controller scales with your needs. Expandability is built in, so you can add modules without replacing the base unit—saving capital investment. The buffer battery preserves programs during power loss, minimizing downtime and reprogramming costs.
Industry Applications
In packaging lines, the FX3U-80MR-ES-A manages conveyor sequencing and actuator control using its 40 relay outputs, which handle moderate current loads without additional interface modules. For material handling systems, the 40 digital inputs capture sensor signals reliably. The 100-240 VAC power supply simplifies integration in facilities with standard mains voltage, avoiding costly transformers. Over a five-year lifecycle, the low 50 W power consumption can save hundreds of dollars in electricity compared to less efficient controllers, directly improving ROI.
Installation & Setup Guidance
Mount the FX3U-80MR-ES-A on a DIN rail or panel using its 285 mm width, 90 mm height, and 86 mm depth. Connect the 100-240 VAC supply to the designated terminals, ensuring proper grounding. Wire digital inputs to 24 VDC sensors and relay outputs to loads up to 2 A (resistive) per point—verify load ratings from your device manuals. The RS-422 port allows connection to operator interfaces or programming tools. Always power down before wiring to prevent damage.
Maintenance & Reliability
Periodically inspect the buffer battery voltage; replacement every 3-5 years prevents program loss. Keep the IP10-rated enclosure free of dust and moisture—install in a cabinet if the environment is dirty. Ambient temperature range of 0 °C to 55 °C covers most factory floors. Relay output contacts wear over time; monitor switching frequency and replace the module if failures occur. These simple steps extend service life and avoid unplanned downtime, directly supporting cost efficiency.
Compatibility & Integration
The FX3U-80MR-ES-A integrates with Mitsubishi MELSEC-F series expansion modules for analog, communication, or additional I/O. The RS-422 port supports programming via GX Works2 or connection to HMIs. USB option is available for faster data transfer. For larger systems, connect up to 384 total I/O points (local plus remote) using network adapters. This compatibility protects your investment in existing Mitsubishi infrastructure.
Selection Guide & Purchasing Advice
Before ordering, verify your application requires 40 inputs and 40 relay outputs. If you need transistor outputs for high-speed switching, consider the FX3U-80MT-ES-A variant. The FX3U-80MR-ES-A is ideal for general-purpose control where relay isolation and simplicity matter. SpareTechPLC stocks this model and can advise on compatible expansion modules. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
Q1: Can the FX3U-80MR-ES-A be expanded with additional I/O modules?
Yes, the controller supports expansion up to 384 total I/O points (local plus remote). You can add analog, digital, or communication modules.
Q2: What is the power consumption of the FX3U-80MR-ES-A?
The controller consumes 50 W under typical operation, helping keep energy costs low.
Q3: Does the FX3U-80MR-ES-A include a backup battery?
Yes, it has a buffer battery that preserves the program memory (RAM) during power loss.
Q4: What is the maximum ambient temperature for operation?
The controller operates reliably from 0 °C to 55 °C, covering most industrial environments.
Q5: How many program steps can the FX3U-80MR-ES-A store?
It stores up to 64K steps, sufficient for complex automation sequences.
