Product Overview

The PW302 (Model: PW302) is a foundational power supply unit engineered for Yokogawa’s CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). This module is responsible for converting universal AC input into a stable, regulated DC voltage to power the control processors, I/O modules, and internal bus communication interfaces within the Field Control Station (FCS).

In mission-critical industrial environments, power stability is paramount. The PW302 (Part Number: PW302) features an advanced circuit design that filters electrical noise and protects downstream sensitive electronics from voltage surges and short circuits. It is specifically designed to support 1:1 dual-redundant configurations. When two PW302 modules are installed in a redundant rack, they perform active load-sharing; if one unit fails, the other assumes the full load instantaneously without a dip in output voltage, ensuring the DCS remains operational without process interruption.

Detailed Technical Specifications

The PW302 is optimized for high efficiency and long-term reliability in continuous-process industries.

• Manufacturer: Yokogawa Electric Corporation (Japan)

• Model Identification: PW302

• System Series: CENTUM CS 3000, CENTUM VP

• Product Function: System Power Supply Module

• Input Voltage: 100–240 V AC (Wide range: 80–264 V AC compatible)

• Input Frequency: 50/60 Hz (± 3 Hz)

• Output Voltage: 24 V DC (Regulated internal bus)

• Output Current: 5.0 A continuous duty

• Power Efficiency: Typically >85% at full rated load

• Redundancy: Supports 1:1 Dual-redundant "Pair & Spare" architecture

• Protection Logic: Overvoltage, Overcurrent, and Thermal Shutdown protection

• Diagnostic Indicators: Front-panel LEDs for Power Status and Alarm

• Operating Temperature: 0°C to +60°C

• Physical Dimensions: 200 mm x 150 mm x 25 mm

• Net Weight: 0.65 kg (Unit only)

• Shipping Weight: 2.0 kg (Including protective packaging)