Yokogawa NFPW442-10 Style S2 Replacement Supply
Manufacturer: Yokogawa
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Part Number: NFPW442-10
Condition：New with Original Package
Product Type: Power Supply Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Yokogawa NFPW442-10 serves as the primary energy backbone for the STARDOM FCN/FCJ autonomous controllers and associated hardware. This Style S2 power supply module converts high-voltage AC input into precisely regulated 5.1V DC and 24V DC rails to drive CPUs, I/O modules, and communication interfaces. We supply this unit as 100% Brand New and Original, ensuring your mission-critical control and safety instrumented systems (SIS) receive stable, noise-free power in demanding process environments.
Technical Specifications
The NFPW442-10 utilizes a high-efficiency design to support full-rack loads while minimizing thermal output:
| Feature | Specification |
| Model / Style | NFPW442-10 / Style S2 |
| System Compatibility | STARDOM, CENTUM VP, ProSafe-RS |
| Input Voltage | 220 – 240 V AC, 50/60 Hz |
| Input Current | 0.7 A |
| Output 1 | 5.1 V DC @ 7.8 A |
| Output 2 | 24 V DC @ 4.0 A |
| Power Capacity | 60 W Typical |
| Redundancy | Supports dual-power configuration |
| Dimensions | 49.7 × 130 × 146.5 mm |
| Operating Temp | 0 °C to +55 °C |
Engineering Advantages
The NFPW442-10 incorporates advanced Reliability, Availability, and Serviceability (RAS) features to solve common industrial power challenges:
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Hot-Swappable Continuity: The module supports hot-swap replacement. This allows maintenance teams to replace a power unit without de-energizing the rack or interrupting process control logic, effectively eliminating downtime during routine servicing.
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Dual-Output Precision: Unlike standard industrial supplies, the NFPW442-10 delivers two distinct regulated DC voltages. The 5.1V rail powers sensitive digital logic, while the 24V rail drives field-side I/O and loop-powered sensors, ensuring complete isolation and stability across the system.
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Built-in Health Diagnostics: Integrated power health monitoring and status LEDs provide immediate visual and digital feedback. The system detects voltage fluctuations or internal failures instantly, allowing the controller to trigger alarms before a system-wide shutdown occurs.
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Passive Convection Cooling: The module utilizes natural convection for cooling, removing the need for mechanical fans. This lack of moving parts significantly increases the Mean Time Between Failures (MTBF) and allows for reliable operation in dust-prone environments like paper mills and chemical plants.
FAQs
Q: Can I use the NFPW442-10 in a redundant configuration with different input voltages?
A: No. When utilizing dual-power redundancy in a Yokogawa rack (such as the NFBU200), both NFPW442-10 modules must receive compatible input voltages to ensure balanced load sharing and proper diagnostic reporting.
Q: Does this module require a specific baseplate or rack?
A: Yes. The NFPW442-10 installs into standard Yokogawa racks, such as the NFBU200 or NFBU050. It occupies the dedicated power supply slots located at the far end of the backplane to ensure optimal power distribution across the bus.
Q: Is the NFPW442-10 compatible with older Style S1 systems?
A: Style S2 modules typically offer improved efficiency and diagnostic features. While they often maintain backward physical compatibility, you should verify the specific rack style and system firmware to ensure all RAS (Reliability, Availability, and Serviceability) functions operate correctly.
Q: What indicates a power supply failure?
A: The module features front-panel status LEDs. A loss of the "READY" LED or the activation of an "ALARM" indicator signifies an internal fault or an input power loss, allowing for immediate corrective action.