Mitsubishi FX2NC-CNV-IF – Extension Bus Conversion Module | MELSEC FX2NC Series
Engineering Background
The MELSEC FX2NC series was engineered by Mitsubishi Electric for space-constrained machine control applications where compact form factor and high I/O density are critical. The FX2NC-CNV-IF serves as the essential interface bridge that unlocks the full expansion capability of the FX2NC CPU by enabling connection to the broader FX2N expansion unit ecosystem.
Product Positioning
Designed for OEM machine builders and system integrators who require maximum I/O flexibility within a minimal cabinet footprint, the FX2NC-CNV-IF eliminates the need for a separate FX2NC-series expansion bus, allowing engineers to leverage existing FX2N peripheral investments alongside FX2NC main units. It is the standard-specified conversion interface for all FX2NC CPU expansion configurations.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | FX2NC-CNV-IF |
| Manufacturer | Mitsubishi Electric Corporation |
| Series / Platform | MELSEC FX2NC |
| Module Type | Extension Bus Conversion Interface |
| Compatible CPU | FX2NC-16MT, FX2NC-32MT, FX2NC-48MT, FX2NC-64MT, FX2NC-96MT, FX2NC-128MT |
| Compatible Expansion Units | FX2N-series extension modules (I/O, special function, communication) |
| Bus Interface | FX2NC compact connector → FX2N standard extension bus |
| Power Consumption | 30 mA (5 VDC, supplied from CPU bus) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | –20 °C to +70 °C |
| Humidity | 35 % to 85 % RH (non-condensing) |
| Vibration Resistance | 10–57 Hz: 0.075 mm amplitude; 57–150 Hz: 9.8 m/s² |
| Shock Resistance | 147 m/s² (3 axes) |
| Dielectric Withstand | 500 VAC, 1 min (between terminals and ground) |
| Insulation Resistance | ≥ 5 MΩ (500 VDC megger) |
| Mounting Method | DIN rail or direct screw mount |
| Dimensions (W × H × D) | Refer to Mitsubishi FX2NC-CNV-IF hardware manual |
| Weight | Approx. 200 g |
| Protection Class | IP20 |
| Certification | CE, UL, cUL |
| HS Code | 8537.10 |
| Country of Origin | Japan |
Proven Application Environments
- Compact Machine Control: Injection molding machines, packaging lines, and textile machinery where cabinet space is at a premium
- Retrofit & Upgrade Projects: Migrating existing FX2N expansion infrastructure to FX2NC-based control architectures without replacing peripheral modules
- High-Density I/O Expansion: Connecting FX2N analog, temperature, and communication modules to FX2NC CPUs for multi-axis or multi-loop control
- OEM Panel Builders: Standardizing on FX2NC CPUs while maintaining a common FX2N expansion module inventory
- Process Automation: Food & beverage, pharmaceutical, and chemical batch control systems requiring compact, certified hardware
Engineering Advantages
- Seamless Ecosystem Bridge: Directly connects FX2NC compact bus to the full FX2N expansion module library — no additional adapters required
- Zero Programming Overhead: Transparent to the CPU; no special configuration or parameter settings needed in GX Works or GX Developer
- Compact Form Factor: Minimal additional panel depth; preserves the space advantage of the FX2NC platform
- Bus-Powered: Draws power directly from the CPU extension bus — no separate power supply wiring
- Certified for Industrial Use: CE, UL, and cUL listed for global machine compliance
- Long-Term Availability: Genuine OEM part with Mitsubishi Electric’s established supply chain support
System Architecture & Signal Flow
The FX2NC-CNV-IF installs directly onto the right side of the FX2NC CPU unit via the compact extension connector. It converts the FX2NC proprietary compact bus signals to the standard FX2N extension bus format, allowing up to 8 FX2N extension modules (I/O blocks, special function modules, or communication adapters) to be cascaded downstream. Signal integrity is maintained through the conversion without introducing additional scan-cycle latency.
Typical Configuration:
FX2NC CPU → FX2NC-CNV-IF → FX2N-32EX (Input Extension) → FX2N-2AD (Analog Input) → FX2N-232-BD (Serial Communication)
Sourcing & Quality Verification
- OEM Authenticity: All units sourced through verified Mitsubishi Electric authorized distribution channels
- Inspection Protocol: Each module undergoes visual inspection, label verification, and functional bus-communication check prior to dispatch
- Traceability: Lot numbers and date codes recorded for full supply chain traceability
- Packaging: Shipped in original Mitsubishi Electric anti-static packaging with protective foam insert
- Warranty: 12-month warranty against manufacturing defects; DOA replacement within 7 business days
Procurement Process
- Confirm Compatibility: Verify your FX2NC CPU model and the FX2N expansion modules you intend to connect
- Request Quote: Contact support@konmask.com for volume pricing, lead time, and availability confirmation
- Place Order: Add to cart and complete checkout, or submit a purchase order via email for B2B invoicing
- Shipping: DHL / FedEx / UPS express available; EXW Xiamen or CIF destination port options for bulk orders
- Documentation: Commercial invoice, packing list, and certificate of origin provided with every shipment
Technical FAQ
Q: Can the FX2NC-CNV-IF connect FX3U or FX3G expansion modules?
A: No. The FX2NC-CNV-IF is designed exclusively for FX2N-series expansion units. FX3U/FX3G expansion requires the FX3UC-1PS-5V or FX3UC-CNV-ADP adapters.
Q: How many FX2N expansion modules can be connected downstream?
A: Up to 8 FX2N extension modules can be connected, subject to the total I/O point limit and power budget of the FX2NC CPU.
Q: Does the FX2NC-CNV-IF require any configuration in GX Works2?
A: No configuration is required. The module is automatically recognized by the FX2NC CPU during power-up hardware scan.
Q: Is this module compatible with FX2NC-32MT-D (DC input/transistor output) variants?
A: Yes. The FX2NC-CNV-IF is compatible with all FX2NC CPU variants regardless of I/O type.
Q: What is the lead time for out-of-stock units?
A: Standard lead time is 3–7 business days for in-stock units. For special orders, contact us for a confirmed delivery schedule.
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