Mitsubishi FX2-48MR – 48-Point Relay Output PLC Main Unit | FX2 Series Platform
Engineering Background
The Mitsubishi FX2-48MR is a compact, high-density programmable logic controller (PLC) main unit from Mitsubishi Electric’s FX2 series — a platform engineered for demanding discrete manufacturing and process control environments. Designed to replace aging relay-logic panels with deterministic, ladder-logic-driven control, the FX2-48MR delivers industrial-grade reliability in a DIN-rail-mountable form factor.
Product Positioning
Targeted at procurement engineers and system integrators sourcing proven automation hardware, the FX2-48MR occupies the mid-range of Mitsubishi’s FX family — offering a balanced I/O count (48 points) with relay output flexibility suitable for both OEM machine builders and brownfield retrofit projects. Konmask.com supplies this unit with full traceability documentation and pre-shipment inspection.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | FX2-48MR |
| Series / Platform | Mitsubishi FX2 |
| Manufacturer | Mitsubishi Electric Corporation |
| Country of Origin | Japan |
| I/O Configuration | 48 Points Total (24 DI / 24 DO) |
| Output Type | Relay (MR) |
| Input Voltage | 100–240 VAC / 24 VDC (model-dependent) |
| Output Voltage Range | Up to 240 VAC / 30 VDC |
| Output Current per Point | 2 A (resistive load) |
| Program Memory | 8,000 Steps |
| Scan Time | 0.08 µs / step (basic instructions) |
| Communication Ports | RS-422 (programming port) |
| Expansion Capability | Up to 8 expansion modules |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -25°C to 75°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Protection Rating | IP20 |
| Mounting | DIN Rail / Panel Mount |
| Weight | Approx. 4,500 g (with packaging) |
| Certifications | CE, UL, cUL |
Proven Application Environments
- Discrete Manufacturing: Assembly line sequencing, conveyor control, and machine interlocking in automotive and electronics plants.
- Material Handling: Palletizer control, sorting systems, and warehouse automation with mixed AC/DC load requirements.
- Building Automation: HVAC sequencing, pump control, and lighting management in commercial facilities.
- Food & Beverage: Packaging line control, filling machine sequencing, and CIP (Clean-In-Place) cycle management.
- Brownfield Retrofit: Direct replacement for aging relay panels or earlier FX/FX0N series controllers with minimal rewiring.
- OEM Machine Building: Embedded control for injection molding machines, CNC peripherals, and textile equipment.
Engineering Advantages
- Relay Output Versatility: MR-type relay outputs switch both AC and DC loads without additional interface relays, reducing BOM cost and panel complexity.
- High-Density I/O: 48 points in a compact housing minimizes panel footprint versus discrete relay banks.
- Proven FX2 Ecosystem: Compatible with the full range of Mitsubishi FX2 expansion modules (analog, temperature, communication, positioning).
- GX Developer / GX Works2 Compatible: Seamless programming with Mitsubishi’s standard IEC 61131-3 toolchain.
- Long Service Life: Relay contact rated for 200,000 operations (resistive load), suitable for low-to-medium cycle-rate applications.
- Deterministic Scan Cycle: 0.08 µs/step basic instruction execution ensures predictable real-time control response.
System Architecture & Signal Flow
The FX2-48MR operates as a standalone main unit or as the CPU base in an expanded FX2 system. Digital inputs (24 points) are optically isolated and accept 24 VDC signals from field sensors, proximity switches, and pushbuttons. The CPU executes the user ladder program cyclically, updating the output image table. Relay output coils (24 points) are then energized according to the solved logic, switching field loads including motors, solenoids, and indicator lamps. Expansion modules connect via the right-side bus connector, extending I/O capacity up to 128 points total. The RS-422 programming port supports online monitoring, program upload/download, and forced I/O operations via GX Developer or GX Works2.
Sourcing & Quality Verification
- Authorized Supply Chain: Units sourced through verified Mitsubishi Electric distribution channels with full lot traceability.
- Pre-Shipment Inspection: Each unit undergoes visual inspection, label verification, and power-on functional check before dispatch.
- Authenticity Documentation: Original Mitsubishi packaging, serial number verification, and certificate of conformity available upon request.
- Warranty: 12-month Konmask quality guarantee covering manufacturing defects; Mitsubishi OEM warranty terms apply where applicable.
Procurement Process
- Confirm Specification: Verify FX2-48MR matches your I/O count, output type (relay), and power supply requirements against your BOM.
- Request Quote: Contact [email protected] or call +0086 19859288691 for volume pricing, lead time, and availability confirmation.
- Submit PO: Issue purchase order referencing SKU FX2-48MR. Accepted formats: PDF PO, email order, or online checkout.
- Inspection & Dispatch: Pre-shipment inspection completed within 1–2 business days. DHL / FedEx / sea freight options available.
- Documentation Package: Commercial invoice, packing list, certificate of origin (Japan), and inspection report included with every shipment.
Technical FAQ
Q: Is the FX2-48MR compatible with GX Works3?
A: GX Works3 does not natively support the FX2 series. Use GX Developer or GX Works2 for programming and online monitoring.
Q: Can I mix relay (MR) and transistor (MT) output modules in the same FX2 system?
A: Yes. Expansion output modules with transistor outputs can be added to the right-side bus while the main unit retains relay outputs.
Q: What is the maximum expansion I/O for the FX2-48MR?
A: Up to 8 expansion units can be connected, extending total I/O to a maximum of 128 points.
Q: Does this unit support Ethernet communication?
A: The FX2-48MR does not include a native Ethernet port. Ethernet connectivity requires an FX2N-ENET or compatible communication expansion module.
Q: Is the FX2-48MR still in production?
A: The FX2 series has reached end-of-production status with Mitsubishi Electric. Konmask.com maintains verified surplus stock for MRO and retrofit procurement needs.
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Contact: [email protected] | +0086 19859288691
