Mitsubishi FX2N-16EYT – 16-Point Transistor Output Extension Module | MELSEC FX2N Series
Engineering Background
The Mitsubishi Electric MELSEC FX2N series represents one of the most widely deployed compact PLC platforms in industrial automation history. Designed for high-speed, high-reliability discrete control, the FX2N platform has been the backbone of manufacturing lines across automotive, food & beverage, semiconductor, and general machinery sectors for over two decades.
Product Positioning
The FX2N-16EYT is a 16-point transistor (sink) output extension module engineered to expand the I/O capacity of FX2N and FX2NC base units. Its solid-state transistor outputs deliver high-speed switching without mechanical wear, making it the preferred choice for servo drives, stepper motor pulse trains, high-frequency solenoid valves, and precision timing applications where relay outputs are inadequate.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | FX2N-16EYT |
| Manufacturer | Mitsubishi Electric (三菱電機) |
| Series / Platform | MELSEC FX2N |
| Module Type | Digital Output Extension Module |
| Output Points | 16 points (Y0–YF) |
| Output Type | Transistor (Sink / NPN open-collector) |
| Rated Load Voltage | 5–24 VDC |
| Max Load Current per Point | 0.5 A |
| Max Total Load Current | 8 A (all points simultaneously) |
| OFF → ON Response Time | ≤ 0.2 ms |
| ON → OFF Response Time | ≤ 0.2 ms |
| Max Output Frequency | 100 kHz (pulse train mode) |
| Isolation Method | Photocoupler |
| Power Consumption (Internal) | 30 mA @ 5 VDC (from base unit bus) |
| External Power Supply | Not required (bus-powered) |
| Connector Type | 18-pin terminal block |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +75 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
| Vibration Resistance | 10–57 Hz: 0.075 mm; 57–150 Hz: 9.8 m/s² |
| Shock Resistance | 147 m/s² (3 axes) |
| Dimensions (W × H × D) | 55 × 90 × 87 mm |
| Weight | Approx. 970 g (with packaging) |
| Country of Origin | Japan |
| Applicable Standards | CE, UL, cUL |
| Compatible Base Units | FX2N-16M□, FX2N-32M□, FX2N-48M□, FX2N-64M□, FX2N-80M□, FX2N-128M□, FX2NC series (with adapter) |
Proven Application Environments
- Servo & Stepper Drive Control: High-speed pulse train output (up to 100 kHz) for precise positioning via servo amplifiers and stepper drivers.
- Automotive Assembly Lines: Coordinated multi-axis output control for robotic welding, press, and conveyor systems.
- Semiconductor & Electronics Manufacturing: Clean-room compatible, low-EMI transistor switching for pick-and-place and wafer handling equipment.
- Food & Beverage Packaging: High-cycle solenoid valve control for filling, capping, and labeling machines.
- HVAC & Building Automation: Fan, pump, and damper actuator control integrated with FX2N supervisory logic.
- Material Handling: Conveyor routing, sortation, and palletizing systems requiring fast, reliable discrete outputs.
Engineering Advantages
- Zero Mechanical Wear: Solid-state transistor outputs eliminate contact bounce and arcing, delivering millions of switching cycles without degradation.
- High-Speed Pulse Capability: Native 100 kHz pulse train output enables direct servo/stepper control without external pulse generators.
- Photocoupler Isolation: Full galvanic isolation between PLC logic and field wiring protects the CPU from load-side transients and ground loops.
- Bus-Powered Design: No external 24 VDC power supply required for the module itself — simplifies panel wiring and reduces BOM cost.
- Compact DIN-Rail Form Factor: Side-mount expansion maintains the FX2N’s compact footprint; no additional panel space penalty.
- Proven Long-Term Availability: FX2N I/O modules remain available as genuine OEM parts and verified aftermarket stock for legacy system maintenance.
System Architecture & Signal Flow
The FX2N-16EYT connects directly to the right side of an FX2N base unit via the proprietary FX bus connector. The base unit CPU maps the 16 output points (Y0–YF) into its I/O address space automatically upon power-up — no DIP switch or parameter configuration is required. Each output channel routes through an internal photocoupler to an NPN open-collector transistor, with the COM terminal serving as the shared load return. External load power (5–24 VDC) is supplied by the user’s field power supply, keeping module and field circuits fully isolated.
Signal path: CPU Output Register → FX Bus → Photocoupler → NPN Transistor → Load → COM (Field GND)
Sourcing & Quality Verification
- Genuine OEM Parts: All FX2N-16EYT units sourced by Konmask.com are verified Mitsubishi Electric OEM product — not clones, refurbished, or remarked units.
- Inspection Protocol: Each unit undergoes visual inspection, label authentication, and functional power-on verification prior to shipment.
- Traceability: Batch and date codes are documented and available upon request for quality records and MRO audits.
- Packaging: Ships in original or equivalent ESD-safe anti-static packaging with protective foam insert.
Procurement Process
- Add the FX2N-16EYT to your cart and proceed to checkout, or contact us for volume pricing on orders of 5+ units.
- Receive order confirmation with estimated lead time (typically 1–3 business days for in-stock units).
- Unit is inspected, photographed, and packed; tracking number issued within 24 hours of dispatch.
- Global shipping via DHL Express, FedEx, or UPS — typical transit: 3–7 business days worldwide.
- Post-delivery technical support available via email or WhatsApp for integration assistance.
Technical FAQ
Q: Can the FX2N-16EYT be used with an FX3U base unit?
A: No. The FX2N-16EYT uses the FX2N bus interface and is not electrically or mechanically compatible with FX3U/FX3UC base units. For FX3U expansion, use the FX3U-16EYT or FX3U-16EYT/ESS.
Q: What is the maximum number of FX2N-16EYT modules per base unit?
A: The FX2N base unit supports up to 8 extension modules (mix of I/O and special function), with a maximum of 256 total I/O points. Verify the base unit’s extension power budget before adding multiple modules.
Q: Is this module suitable for 24 VAC loads?
A: No. The FX2N-16EYT transistor outputs are DC-only (5–24 VDC). For AC load switching, use the FX2N-16EYR (relay output) variant.
Q: Can I use this module for high-speed pulse output to a servo drive?
A: Yes. Y0 and Y1 (and Y2, Y3 on some firmware versions) support high-speed pulse train output up to 100 kHz when used with the FX2N PLSY or PLSR instructions.
Q: Do you provide a certificate of conformity or test report?
A: Yes, upon request. Please contact support@konmask.com with your order number after purchase.
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