This base board provides the fundamental backplane for the Fuji NP1 series of programmable controllers. It establishes the physical and electrical backbone for all plug-in modules within the system. The Fuji NP1BS-08D supports up to eight I/O modules in a single rack configuration. This design yields a compact and highly organized control cabinet layout.
Physical Dimensions and Mounting Specifications
This base board measures 265 millimeters in width, 120 millimeters in depth, and 45 millimeters in height. The unit weighs precisely 1.2 kilograms without any inserted modules. Four pre-drilled mounting holes secure the board to the cabinet backplate. The board uses M4 screws for a robust and vibration-resistant installation.
Interface Structure and Module Slots
The Fuji NP1BS-08D features eight dedicated expansion slots for I/O modules. Each slot provides a 96-pin DIN connector for high-speed data exchange. A separate 20-pin header supplies power to all connected modules from the primary supply. These connectors are keyed to prevent incorrect module insertion. The board also includes a grounding terminal for noise reduction.
Electrical Characteristics and Power Distribution
The backplane distributes a 5 VDC logic supply at up to 3 amperes. It also routes a 24 VDC field power bus rated for 2 amperes. The printed circuit board uses 2-ounce copper traces for minimal voltage drop. This robust power distribution ensures stable operation under maximum load conditions.
Component Architecture and Build Quality
This base board contains 48 individual electronic and mechanical components. Key parts include bypass capacitors, current-limiting resistors, and bus termination resistors. The board substrate uses a high-grade FR-4 epoxy glass material. All solder joints are wave-soldered for consistent electrical connectivity.
Energy Storage and Signal Integrity
The Fuji NP1BS-08D incorporates a small capacitance array for local power decoupling. This array provides a total storage capacitance of 330 microfarads at 5 volts. This energy reserve effectively filters high-frequency switching noise. It also maintains logic states during brief supply fluctuations.
Installation and System Integration
Engineers can install this base board quickly using standard panel-mounting hardware. The clearly labeled slot numbers simplify module placement and cable routing. The board is compatible with all Fuji NP1 series analog and digital modules. We recommend using shielded cables for the field wiring to minimize EMI. This base board forms the essential foundation for a scalable control solution.
Technical Data Summary
| Parameter | Specification |
|---|---|
| Brand | Fuji |
| Model | NP1BS-08D |
| Product Type | Base Board (Backplane) |
| Dimensions (W x D x H) | 265 mm x 120 mm x 45 mm |
| Weight | 1.2 kg |
| Module Slots | 8 (96-pin DIN connectors) |
| Power Connector | 1 x 20-pin header |
| 5 VDC Supply Capacity | 3 A |
| 24 VDC Supply Capacity | 2 A |
| Decoupling Capacitance | 330 µF at 5 V |
| PCB Material | FR-4 with 2-oz copper |
| Component Count | 48 parts |
| Mounting | 4 x M4 screws |
Operational Reliability and Maintenance
This base board delivers consistent backplane communication in demanding industrial environments. Its solid construction minimizes the need for frequent hardware checks. Consequently, the Fuji NP1BS-08D offers a reliable foundation for long-term automation projects.
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 265 × 120 × 45 mm |
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