Product Overview
When space and budget constraints limit control system design, the Mitsubishi FX3SA-30MR-CM delivers a compact yet powerful solution. This MELSEC PLC programmable controller integrates CPU, power supply, and I/O into a single unit, simplifying installation and reducing wiring complexity. With 30 input/output points, it handles small-scale automation tasks efficiently.
Technical Specifications Breakdown
The FX3SA-30MR-CM operates on a supply voltage of AC100-240V, making it compatible with standard industrial power systems worldwide. It consumes only 21W, minimizing energy costs over its service life. The unit features 16 input points and 14 output points configured as relay outputs, providing robust switching for various loads. Weighing just 0.45 kg and measuring 100x90x75 mm, it fits easily into tight enclosures. Built-in 8000-step EPROM memory eliminates the need for batteries, ensuring maintenance-free operation.
Industry Applications
In packaging machinery, the FX3SA-30MR-CM controls conveyor sequences and actuator timing with its relay outputs, offering reliable switching for solenoids and motors. For small material handling systems, its 16 inputs monitor sensors and limit switches, while the 14 outputs drive indicators and valves. The analog and communication capabilities (via expansion modules) allow integration with MODBUS and Ethernet networks, making it suitable for remote monitoring in distributed control setups.
Installation & Setup Guidance
Mount the FX3SA-30MR-CM on a DIN rail or panel using the provided slots. Connect the AC100-240V power supply to the designated terminals, ensuring proper grounding. Wire input devices (sensors, switches) to the 16 input points and output loads (relays, contactors) to the 14 relay output points. Use the RUN/STOP switch on the front panel for easy operation. For programming, connect via the built-in programming port and use GX Works2 software. The unit supports online program editing without stopping production.
Maintenance & Reliability
The FX3SA-30MR-CM requires minimal maintenance due to its battery-free EPROM memory. Periodically inspect terminal connections for tightness and check for dust accumulation on the enclosure. The relay outputs have a finite mechanical life; monitor switching cycles in high-frequency applications. The unit's compact design and low power consumption contribute to long-term reliability in continuous operation environments.
Compatibility & Integration
This PLC works seamlessly with Mitsubishi FX series expansion modules, including analog I/O, high-speed counters, and temperature modules (for J/K thermocouples or Pt sensors). Up to 8 special function modules can be connected to each main unit. Communication via MODBUS or Ethernet is possible through expansion boards, enabling integration with SCADA systems or other PLCs. The password protection feature secures your program with an eight-digit password.
Selection Guide & Purchasing Advice
Before purchasing the FX3SA-30MR-CM, verify that your application requires 30 I/O points (16 inputs, 14 relay outputs) and AC100-240V power. If you need more I/O, consider the FX3SA model with up to 40 points. SpareTechPLC stocks this model and can advise on compatible expansion modules. Ensure your programming software supports the FX3SA series. For overseas projects, this unit meets international standards.
Frequently Asked Questions
What is the power consumption of the FX3SA-30MR-CM?
The FX3SA-30MR-CM consumes 21W under typical operation.
Can I expand the I/O points beyond 30?
Yes, the FX3SA series supports up to 40 total I/O points using expansion modules.
Does the FX3SA-30MR-CM require a battery for memory backup?
No, it uses built-in 8000-step EPROM memory, which is battery-free and maintenance-free.
What output type does this model have?
It features relay outputs, suitable for switching AC or DC loads up to the relay ratings.
Is the FX3SA-30MR-CM suitable for Ethernet communication?
Yes, with an optional communication expansion board, it can support Ethernet and MODBUS protocols.
