Yokogawa PW301 CENTUM VP DCS Power Supply Module

Yokogawa PW301 is a rack‑mounted power supply module for Yokogawa CENTUM CS3000 and CENTUM VP distributed control systems. It supplies stable DC power for field control stations, CPU processors, I/O boards and communication modules inside the FCS cabinet.

This power unit supports dual redundant configuration and hot‑swap function, equipped with multi‑level protection and status diagnostic indicators. It complies with ISA‑S71.04 G3 environmental standard, widely used as spare parts for petrochemical and power plant DCS cabinet maintenance projects.

Main Specifications

• Brand: Yokogawa (Japan)
• Model: PW301
• Product Type: DCS FCS Rack Power Supply Module
• Input Voltage: 100‑240 VAC, 50/60Hz universal input
• Output: Regulated DC for FCS backplane bus
• Redundancy: Support dual redundant power operation
• Hot Swap: Hot‑swap replaceable without system shutdown
• Environmental Grade: ISA‑S71.04 Class G3
• Indicator: Power and fault status LED indicators
• Operating Temperature Range: 0°C ~ +60°C

Core Functions

• Convert AC input into stable DC power for CENTUM VP FCS rack backplane bus
• Provide operating power for processor modules, analog/digital I/O modules and communication boards
• Dual redundant power configuration eliminates single‑point power supply failure risk
• Hot‑swap capability allows online module replacement during system running status
• Built‑in over‑voltage, over‑current and short‑circuit protection for rack hardware protection
• Front‑panel LED indicators display power running status and fault alarm information
• G3 anti‑corrosion design adapts to harsh control‑room environment of industrial sites
• Rack plug‑in structure simplifies installation, commissioning and field maintenance work
• Full compatibility with CENTUM CS3000 and CENTUM VP series field control stations
• Guarantee continuous power supply for critical process control loops of production units

Application Scenarios

• Petrochemical refinery CENTUM VP DCS field control station cabinets
• Thermal power plant and combined‑cycle unit boiler and turbine control racks
• Oil‑gas pipeline station and LNG terminal process monitoring automation systems
• Chemical fertilizer, pharmaceutical plant continuous‑production DCS control equipment
• Waste‑water treatment plant and energy recovery unit process‑control cabinets
• Off‑shore platform process monitoring and safety interlock control systems
• Old factory automation upgrade, power supply expansion and cabinet reconstruction projects
• CENTUM CS3000 / VP system renovation and power‑module replacement projects
• Yokogawa DCS spare‑parts inventory and on‑site maintenance supporting projects