Product Overview

The Yokogawa NFPW442-10 is a specialized power supply module designed for the STARDOM network-based control system. This unit provides the foundational power infrastructure for the FCN (Field Control Node) autonomous controllers, converting 220–240V AC input into the regulated internal voltage required for CPU and I/O module operation. Built with a focus on high availability, the NFPW442-10 is engineered for continuous 24/7 industrial processes where power stability is mandatory.

The module features a fanless, low-thermal-signature design that significantly extends the Mean Time Between Failures (MTBF). Its integration into the STARDOM architecture allows for sophisticated energy management and monitoring, ensuring that the controller remains operational even in fluctuating electrical environments.

Key Technical Characteristics

• Input Voltage: 220V to 240V AC (Operating range: 100V to 240V AC nominal)

• Frequency Compatibility: 50/60 Hz

• System Integration: Compatible with FCN-500 and FCN-RTU controllers

• Redundancy Support: Facilitates duplex power supply configurations for mission-critical uptime

• Hot-Swap Capability: Allows for module replacement while the system is energized, preventing process interruption

• Internal Diagnostics: Built-in monitoring for voltage irregularities and thermal thresholds

• Environmental Resistance: Available with G3 conformal coating for protection against corrosive gases (ISA Standard G3)

• Data Integrity: Works in tandem with ECC-protected memory systems to ensure stable logic execution during power transients

Operational Reliability and RAS Features

The NFPW442-10 is more than a simple power converter; it is an integral part of the system’s Reliability, Availability, and Serviceability (RAS) strategy. It communicates status signals to the CPU module, allowing the system to log power health and trigger alarms before a total power loss occurs. In redundant setups, two NFPW442-10 modules share the load, ensuring that if one fails, the other takes over the full load instantly without any dip in output voltage.

Physical Dimensions and Installation

• Weight: 0.2 kg

• Dimensions: 25.8 cm (H) x 6.0 cm (W) x 24.3 cm (D)

• Origin: Japan

• Installation: Plug-in module for FCN base units/chassis