PW404 S1 Overview

PW404-S1 is a Yokogawa CENTUM VP power supply module featuring a 24 V DC input profile. Fully compatible with ANT10U repeater units, this Style S1 component works seamlessly with FIO architectures to deliver flexible dual-redundant configurations and stable industrial network communication.

System Compatibility & Alternative Models

• System Compatibility: Fully compatible with Yokogawa CENTUM VP control systems, ANT10U Optical ESB Bus Repeater units, AFV30/AFV40 controllers, and specific FIO hardware assemblies.
• Alternative Model: PW484
• Key Differences: The PW404-S1 is typically designated as a subsystem or base assembly component optimized for targeted FIO bus extension frameworks. Conversely, the PW484 is the standard standalone catalog model code explicitly documented for generic field power integration inside the ANT10U chassis, featuring M4 heavy-duty screw terminals to manage higher continuous current distribution blocks securely.

Specific Application

• Redundant power infrastructure deployment inside ANT10U Optical ESB Bus Repeater units to guarantee uptime for remote I/O sub-networks.
• Instrument loop electrical driving, supplying stable 24 V DC power directly to localized smart field transmitters.
• Distributed Control System (DCS) panel builds where a standard 19-inch rack chassis consolidates critical communication hub modules.

Installation & Troubleshooting FAQ

Q1: What are the primary rules when wiring a dual-redundant power setup with the PW404-S1?
A: To configure true dual-redundancy inside an ANT10U hub unit, you must install two matching power supply modules in parallel. Additionally, the system mandates that you also install a dual-redundant set of Optical ESB Bus Repeater Modules (such as ANT401 or ANT502) so that a structural failure in the right-hand power supply slot can be actively detected by the system architecture.

Q2: What is the maximum current consumption and electrical load capability for this 24 V DC module?
A: The PW404-S1 operating on a standard 24 V DC grid draws a maximum current load of 5.5 A. Ensure your external distribution breakers, line filters, and source DC power supplies are rated to handle this baseline load plus standard industrial inrush currents without triggering a system voltage drop.

Q3: How do I resolve erratic or undetected power faults on an active ANT10U chassis?
A: This issue is frequently caused by a single power module configuration operating alongside dual repeater lines, or loose grounding links. Check the power supply terminals to ensure the M4 screws are tight, verify that both the left and right supply slots are filled if using redundant networks, and ensure the unit is mounted in a keyed metallic cabinet to satisfy EMC mitigation requirements.