The Fuji NP1S-91 converts AC line voltage into three isolated DC outputs. This high‑capacity module powers large NP1 series systems reliably. It feeds CPU, I/O, and special function modules simultaneously. Control engineers choose this unit for demanding automation applications.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions (W x H x D) | 136 mm x 110 mm x 85 mm |
| Weight | 0.95 kg |
| Input Voltage Range | 100–240V AC, 50/60 Hz |
| Input Current | 2.5 A maximum |
| Output Voltage 1 | 5V DC / 6 A |
| Output Voltage 2 | 24V DC / 2 A |
| Output Voltage 3 | 24V DC (isolated) / 1 A |
| Total Output Power | 102 W |
| Internal Energy Storage | 2200 µF (primary side) |
| Efficiency | 86% typical |
| Isolation Voltage | 4000V AC input to output |
| Protection Features | Overcurrent, overvoltage, short circuit, overtemperature |
| LED Indicators | Power good (green), overload (red) |
Physical Layout and Connection Points
The Fuji NP1S-91 weighs 0.95 kilograms for stable installation. Its 136 mm width occupies two slots on the base board. Three separate terminal blocks deliver each output voltage independently. A cooling fan activates automatically when internal temperature exceeds 60°C. The front panel includes green and red status LEDs for diagnostics. An internal 2200 µF capacitor stores energy for 30 milliseconds of hold‑up time.
Output Characteristics and Power Distribution
Output one provides 6 amperes at 5V for CPU logic. Therefore, one power supply handles an entire control system. The total combined power reaches 102 watts continuously. Each output includes independent overcurrent and short‑circuit protection.
Installation and Wiring Guidelines
Mount the Fuji NP1S-91 into the leftmost slots of the base board. First, disconnect AC mains supply completely before wiring. Then connect L, N, and ground wires to the input terminals. Use separate conduits for AC and DC wiring. After that, connect each load to its respective output. Never exceed the rated current on any channel. Finally, apply power and verify all LED indicators show green.
Thermal Management and System Integration
The unit runs at 86% efficiency, producing only 14 watts of heat. Therefore, the cooling fan runs only when necessary. Install this module in a well‑ventilated enclosure. This power supply works with all NP1 series CPUs and I/O modules. Typical applications include large assembly lines and process control systems. For redundant configurations, install two NP1S‑91 units in parallel.
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