Yokogawa PW484-50 S1 Power Supply Module

The Yokogawa PW484-50 S1 is a rack plug-in power supply module for Yokogawa CENTUM VP DCS system. It converts input power into stable DC power, supplies power to the rack backplane and provides reliable power for controllers, communication boards and various I/O modules in the chassis.

This power module supports redundant hot backup configuration to improve system continuous operation capability. It integrates complete protection circuits and working status indicators, widely used as spare parts for maintenance and upgrade of CENTUM VP control cabinets in petrochemical, energy and chemical industries.

Main Specifications

• Brand: Yokogawa; Model: PW484-50 S1; Type: DCS Rack Power Supply Module
• Applicable System: Yokogawa CENTUM VP Distributed Control System
• Core Tasks: Power conversion, backplane power distribution, fault protection, real-time power status monitoring
• Signal Interface: Power input terminals, CENTUM VP rack backplane connector
• Installation: Plug-in slot mounting on standard CENTUM VP chassis rack
• Configuration: Supports redundant dual power hot standby operation
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Certifications: CE, complies with industrial DCS EMC and safety standards

Core Functions

• Convert input power into stable regulated DC power and distribute power to all modules mounted on the CENTUM VP rack backplane.
• Equipped with overvoltage, overcurrent, short circuit and overtemperature multi-protection to avoid hardware damage caused by power grid abnormal fluctuations.
• Front LED status lamps display power running condition in real time, helping maintenance personnel quickly locate power supply faults on site.
• Support redundant configuration. When the main power supply fails, the standby module automatically switches to ensure uninterrupted DCS process control.
• Adopt chassis plug-in design for fast disassembly and replacement, effectively shortening the maintenance shutdown time of control cabinets.
• Industrial reinforced circuit design ensures long-term stable operation for renovation projects of Yokogawa CENTUM VP DCS equipment.

Application Scenarios

• Spare-part replacement for Yokogawa CENTUM VP DCS cabinets in petrochemical, power, chemical and pharmaceutical industrial sites.
• Stable backplane power supply hardware for DCS controllers, communication modules and analog/digital I/O modules.
• Maintenance backup inventory for renovation and after-sales maintenance projects of Yokogawa DCS automation equipment.
• Matching power supply cooperating with CENTUM VP chassis, CPU boards and various I/O modules.
• Retrofit replacement for aged power modules with no output, indicator abnormality and internal circuit burnout faults.

• Global aftermarket spare supply for automation maintenance teams maintaining Yokogawa DCS equipment worldwide.