Product Overview

The PW484-50 (Model: PW484-50) is a high-availability DC-to-DC power supply module engineered for Yokogawa’s CENTUM VP and CS 3000 Distributed Control Systems (DCS). Specifically designed to accept a 24 V DC input, the PW484-50 (Part Number: PW484-50) is the ideal solution for facilities utilizing centralized DC battery banks, UPS systems, or solar-backed power infrastructures where AC power is unavailable or undesired.

As a "Basic Type" module featuring the -50 suffix code, this unit is optimized for high-performance service in standard industrial environments. It is characterized by its superior thermal resilience, supporting an extended operating temperature range of -20 °C to 70 °C. To ensure zero downtime in mission-critical process control, the PW484-50 supports 1:1 dual-redundant operation. When paired on a system backplane, the modules share the load and provide instantaneous failover, ensuring processors and I/O remain energized even if a single power source or module failure occurs.

Detailed Technical Specifications

The PW484-50 provides regulated power conversion with integrated protection logic for sensitive DCS electronics.

• Manufacturer: Yokogawa Electric Corporation (Japan)

• Model Number: PW484-50

• Suffix Code: -50 (Basic Type / Standard Industrial)

• DCS Compatibility: CENTUM VP, CENTUM CS 3000

• Product Type: 24 V DC Input Power Supply Module

• Nominal Input: 24 V DC

• Input Voltage Range: 19.2 V DC to 31.2 V DC (Typical DCS compliance)

• Output Profile: Regulated system-bus voltage for CPU and I/O modules

• Redundancy: 1:1 Parallel Redundancy supported

• Operational Temperature: -20 °C to +70 °C

• Storage Temperature: -40 °C to +85 °C

• Protection Circuitry: Overvoltage, Overcurrent, and Short-circuit suppression

• Diagnostic Indicators: Front-panel LEDs for Power (Green) and Fault (Red)

• Module Weight: 0.7 kg (1.54 lbs)