Yokogawa PW504 | CENTUM VP & CS 3000 | 100-240V AC Power Supply Module

Product Overview

The PW504 (Model: PW504) is a high-reliability power supply unit (PSU) engineered specifically for Yokogawa’s CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). This module serves as the primary electrical interface for system racks, converting wide-range AC utility power into the stabilized DC voltages required by the station backplane to drive processors, communication cards, and I/O modules.

Built for mission-critical availability, the PW504 (Part Number: PW504) is almost exclusively deployed in dual-redundant pairs. This configuration ensures that if one unit experiences a component failure or an upstream power loss, the redundant partner instantly assumes the full load without causing a system reset or process bump. Its rugged design includes comprehensive protection against overvoltage, overcurrent, and thermal irregularities, ensuring the longevity of the sensitive electronics it powers.

Technical Specifications

The PW504 provides a stable power foundation with the following parameters:

• Manufacturer: Yokogawa Electric Corporation (Japan)

• Model Number: PW504

• DCS Compatibility: CENTUM VP, CENTUM CS 3000

• Product Type: System Power Supply Module

• Input Voltage: 100–120 V AC or 200–240 V AC (Auto-sensing range)

• Frequency Range: 50/60 Hz (± 3 Hz)

• Output Voltages: 5.1 V DC (Logic) / 24 V DC (Field/Relay)

• Max Power Output: 70 W

• Efficiency: Greater than 85% at rated load

• Redundancy: Supports 1:1 Parallel Redundant configuration

• Safety Protection: Built-in Overvoltage, Overcurrent, and Thermal Shutdown circuitry

• Status Monitoring: Front-panel LEDs for POWER (Green) and ALARM (Red)

• Operating Temperature: 0°C to +60°C

• Storage Temperature: -20°C to +85°C

• Module Weight: 1.5 kg (3.3 lbs)