MITSUBISHI F2-40MR – 40-Point Relay Output Programmable Controller | MELSEC F2 Series
Engineering Background
The MITSUBISHI F2-40MR is a compact, high-reliability programmable logic controller (PLC) from Mitsubishi Electric’s MELSEC F2 Series — a platform engineered for demanding industrial automation environments. Designed to replace aging relay-based control panels, the F2 Series introduced ladder-logic programmability with robust I/O architecture to manufacturing facilities across Asia, Europe, and the Americas throughout the 1980s and 1990s.
Product Positioning
The F2-40MR serves as a mid-range controller within the F2 lineup, offering 40 discrete I/O points with relay output configuration. It is the preferred choice for procurement engineers sourcing replacement units for legacy production lines, retrofit projects, or spare-parts inventory where downtime cost is critical. Konmask.com supplies verified, tested units with full traceability documentation.
Complete Technical Specifications
- Model: F2-40MR
- Series / Platform: MELSEC F2 Series
- Manufacturer: Mitsubishi Electric Corporation
- I/O Points: 40 (24 Inputs / 16 Outputs)
- Output Type: Relay (MR suffix)
- Input Voltage: 24 V DC (sink/source compatible)
- Output Rating: 2 A per point, 8 A per common
- Program Memory: 2,000 steps (EEPROM)
- Scan Time: Approx. 1 ms / 1,000 steps
- Communication: RS-422 programming port
- Power Supply: 100–240 V AC, 50/60 Hz
- Operating Temperature: 0 °C to 55 °C
- Storage Temperature: −20 °C to 70 °C
- Humidity: 35–85% RH (non-condensing)
- Vibration Resistance: 10–57 Hz, 0.075 mm amplitude
- Weight: Approx. 2,600 g (unit with base)
- Dimensions: Per Mitsubishi F2 Series mechanical drawing
- Certifications: UL, CE (original production era)
- Country of Origin: Japan
Proven Application Environments
- Automotive assembly line sequencing and conveyor control
- Packaging machinery: filling, sealing, and labeling automation
- HVAC and building management system (BMS) integration
- Water treatment plant pump and valve sequencing
- Textile and printing machine cycle control
- Legacy DCS migration and relay panel modernization projects
- Spare-parts inventory for existing MELSEC F2 installations
Engineering Advantages
- Relay Output Flexibility: Drives AC and DC loads without additional interface relays, reducing panel complexity.
- Proven MELSEC Architecture: Compatible with F2 Series expansion modules, enabling I/O scaling without CPU replacement.
- EEPROM Program Retention: No battery required for program storage — eliminates battery-failure risk in long-term installations.
- Wide AC Input Range: 100–240 V AC operation simplifies global deployment and reduces site-specific power conditioning requirements.
- Compact DIN-Rail Form Factor: Minimizes panel footprint while maintaining full 40-point I/O capacity.
- Ladder Logic Compatibility: Fully programmable via GX Developer or legacy F2 programming consoles.
System Architecture & Signal Flow
The F2-40MR integrates a central CPU module with onboard 24-input / 16-relay-output I/O in a single housing. Field signals enter via screw-terminal input commons (X0–X27), are processed by the ladder-logic scan engine, and drive output relay contacts (Y0–Y17) rated for resistive and inductive loads. The RS-422 port connects to programming devices or HMI panels. Expansion I/O modules attach via the F2 bus connector on the right side of the base unit, supporting up to the F2 Series maximum I/O count.
Sourcing & Quality Verification
- Stock Condition: New-old-stock (NOS) or refurbished units — condition specified at order confirmation
- Inspection Protocol: Visual inspection, power-on self-test (POST), and I/O point verification prior to shipment
- Traceability: Serial number and batch documentation provided with each unit
- Packaging: Anti-static ESD bag + foam-lined export carton
- Lead Time: In-stock units ship within 1–3 business days; sourced units 7–15 business days
- Warranty: 90-day functional warranty against DOA and latent defects
Procurement Process
- Submit RFQ — Contact [email protected] with quantity, required condition (NOS / refurbished), and delivery timeline.
- Receive Quotation — Formal quotation with unit price, shipping cost, and lead time issued within 24 hours.
- Order Confirmation — Purchase order or online checkout accepted; proforma invoice available for wire transfer.
- Quality Inspection — Unit tested and documented before dispatch.
- Shipment & Tracking — DHL / FedEx / SF Express with full tracking; export documentation (commercial invoice, packing list, COO) included.
- After-Sales Support — Technical assistance and warranty claims handled by Konmask engineering team.
Technical FAQ
Q: Is the F2-40MR compatible with GX Developer software?
A: Yes. The F2-40MR is programmable via Mitsubishi GX Developer using the F2 Series CPU type selection, as well as legacy F2 handheld programming consoles.
Q: Can the F2-40MR drive 220 V AC loads directly from relay outputs?
A: Yes. The relay output contacts are rated for AC loads up to the specified current rating per point. Always verify load current against the 2 A/point and 8 A/common limits.
Q: What expansion modules are compatible?
A: All MELSEC F2 Series I/O expansion modules (analog, digital, communication) are compatible via the F2 bus interface.
Q: Is a battery required for program retention?
A: No. The F2-40MR uses EEPROM for program storage, which retains data without a backup battery.
Q: Do you provide a test report with the unit?
A: Yes. A pre-shipment inspection report confirming POST pass and I/O verification is included with every order.
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