NFPW444-50 | Yokogawa STARDOM Series 24V DC Power Supply Module

Product Description

The NFPW444-50 is a high-performance DC-to-DC power conversion module specifically engineered for the Yokogawa STARDOM autonomous controller platform. This unit serves as the primary energy source for the Field Control Node (FCN) backplane, converting a standard 24 V DC industrial supply into a highly stabilized +5.1 V DC output required for CPU logic and internal bus communication. Designed for mission-critical reliability, the NFPW442-50 ensures deterministic performance in environments where AC power is unavailable or where battery-backed DC systems are utilized for maximum uptime.

As a "Standard Type" (non-explosion protected) component, the NFPW444-50 is intended for general industrial areas. It features advanced voltage regulation to maintain consistent output even during supply fluctuations, protecting sensitive downstream I/O modules from electrical stress and data corruption.

Detailed Technical Specifications

• Input Power Source: 24 V DC Nominal

• Input Operating Range: 21.6 V to 31.2 V DC

• Regulated Output Voltage: +5.1 V DC

• Output Current Capacity: 0 to 7.8 A (Continuous)

• Energy Management: Optimized for high-efficiency heat dissipation

• Housing Protection: Standard Type (Basic/Non-Ex design)

• Unit Dimensions: 130 mm (H) x 49.7 mm (W) x 146.5 mm (D)

• Net Weight: 0.6 kg

• Total Shipping Mass: 1.5 kg (including protective packaging)

Operational Applications

The NFPW444-50 is primarily deployed in STARDOM FCN-RTU architectures found in remote oil and gas production sites, solar-powered monitoring stations, and maritime automation systems. It is the ideal choice for modular controller racks that require a direct DC interface to local battery arrays or DC UPS systems, ensuring a seamless power transition during primary utility failure.

Technical FAQ

How does the NFPW444-50 handle voltage dips in the 24V supply?

The module is rated for a wide input range down to 21.6 V DC. This tolerance allows the NFPW444-50 to maintain a stable +5.1 V DC logic supply even during moderate battery discharge or voltage drops caused by high-current loads elsewhere on the same DC loop.

Is this module compatible with redundant power configurations?

Yes. In STARDOM FCN enclosures with dual power slots, two NFPW444-50 modules can be installed to operate in a parallel redundant mode. If one module or its power source fails, the secondary unit assumes the full load without causing a system reset or CPU interruption.