Yokogawa PW404 S1 Dedicated 24 V DC Power Supply Module

Description

The Yokogawa PW404 S1 is a power supply module for the CENTUM VP and CENTUM CS 3000 distributed control systems. It supplies power to compatible control stations and is installed in the power supply unit of the system. The module supports AC power input and provides the operating power required by the control system hardware. It is designed for use with compatible Yokogawa system units and can be installed or replaced as part of normal system maintenance. The PW404 S1 operates together with the system backplane and associated modules, providing the power required for controller and I/O operation within the CENTUM platform. It is used in distributed control systems applied in process industries including oil and gas, chemical, petrochemical, power generation, and other industrial automation facilities.

Parameter

Model: PW404 S1 Dedicated 24 V DC Power Supply Module
Rated Input Voltage: 100 V to 120 V AC or 220 V to 240 V AC (Suffix Dependent)
Input Frequency Range: 50 / 60 Hz (±3 Hz tolerance)
Input Voltage Tolerance: 85 V to 264 V AC continuous operational limit
Primary Output Voltage: 24 V DC Regulated system logic power
Installation Style: Horizontal mounting in 19-inch node racks
Operating Temperature: 0 °C to +50 °C (32 °F to 122 °F)
Enclosure Protection: IP20 Rating
CertificationsCE, UL, CSA, KC (Functional safety loops)

Frequently asked questions

Q:What is the Yokogawa PW404 S1?
A:The PW404 S1 is a power supply module used in Yokogawa CENTUM VP and CENTUM CS 3000 distributed control systems. It supplies operating power to compatible control system hardware.

Q:Does the PW404 S1 operate as a standalone power supply?
A:No. The PW404 S1 is intended to operate as part of a CENTUM distributed control system and is used together with compatible controllers, I/O modules, and system components.

Q:Does the PW404 S1 work with other CENTUM modules?
A:Yes. The power supply module operates with compatible CENTUM VP and CENTUM CS 3000 hardware to provide the power required by the control station.

Application areas

The PW404 S1 module functions as a core redundant power block within Field Control Stations (FCS). It powers the internal processing units, node communication cards, and downstream digital/analog signal busses.The specific, field-level application areas include:

• Field Control Station (FCS) Core Drive: Supplies continuous, regulated system logic voltage to AFV10D, AFV30D, and AFV40D main controller processors.
• ESB/ER Bus Node Extension Units: Powers the ANB10D and ANR10D interface nests that handle high-speed fiber-optic or coaxial network expansions.
• Analog Input Loop Distribution: Provides the electrical backplane rail voltage utilized by AAI141 and AAI143 cards to drive 4-20 mA field transmitter loops.

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