Description
Yokogawa PW01 DCS Power Supply Module
Technical Specifications Model: PW01 Mounting Form: Plug-in installation on Yokogawa DCS rack Input Power: DC input Output: Multiple groups regulated DC output for backplane bus Operating Temperature: 0℃ ~ +60℃ Storage Temperature: -20℃ ~ +70℃ Relative Humidity: 10% ~ 90% non-condensing Protection Function: Overvoltage, overcurrent, overtemperature protection Module Indicator: Power OK LED, Fault LED
Functional Features Converts input DC power to multi-channel regulated DC output for DCS rack backplane. Built-in complete hardware protection circuit to shut down output automatically under electrical fault. Power OK LED and fault LED display working state and fault alarm. Supports hot swap operation inside DCS rack. Low ripple and noise DC output ensures stable operation of DCS control and I/O modules. High efficiency power conversion reduces heat generation during continuous running. Internal self-diagnosis circuit monitors power conversion state continuously. Supports redundant power supply configuration for DCS control rack.
Application Scenarios Petrochemical DCS control station, thermal power plant boiler control rack, chemical process control system, oil refinery distributed control system, pulp and paper factory process monitoring platform.
Performance Parameters Output voltage ripple maintains low level under rated load. Protection circuit triggers fast shutdown when fault condition appears. Output voltage keeps stable within tolerance under input voltage fluctuation. Module maintains stable power conversion performance under long-term continuous operation. Self-diagnosis circuit detects internal power abnormality and activates fault indicator. Redundant parallel operation realizes seamless power switch without system interruption.
Material Composition Module housing: Black flame-retardant engineering plastic. Main PCB: FR4 multi-layer printed circuit board with conformal protective coating. Core electronic components: DC-DC conversion chip, power inductor, filter capacitor, voltage monitoring IC, protection circuit chip. Connector: Gold-plated edge connector for DCS rack backplane. Indicator: Light emitting diodes for power and fault state. Fasteners: Plastic positioning buckle.
Structural Features Rectangular plug-in module matching standard Yokogawa DCS rack slot dimension. Front panel with power status LED and fault LED indicators. Gold-plated edge connector on rear side for backplane connection. Internal circuit layout isolates power conversion circuit and backplane bus circuit. Ventilation slots on housing for natural convection heat dissipation. Positioning buckle on module side ensures accurate insertion and locking.
Working Principle Input DC power enters PW01 module through backplane connector. DC-DC conversion circuit converts input voltage into required multi-channel stable DC voltage for DCS modules. Filter circuit suppresses output voltage ripple. Feedback loop monitors output voltage continuously and adjusts conversion parameters to keep output stable. Overvoltage, overcurrent and overtemperature monitoring circuit runs in real time. When fault threshold is exceeded, protection circuit cuts off output immediately and lights fault LED. Power OK LED keeps lit when all output channels work normally. In redundant configuration, two PW01 modules supply power in parallel, either module can take full load independently when the other fails.
Installation Requirements Cut off rack slot power before installation or removal of PW01 module. Align module with empty DCS rack slot, push inward until backplane connector fully inserts and buckle locks. Complete power input wiring to rack power terminal. Power on rack after installation and check LED indicator status. Reserve ventilation space around module slot to avoid heat accumulation. Verify output voltage on DCS engineering station or multimeter during commissioning.
Usage Precautions This module is exclusively used for matched Yokogawa DCS rack. Cut off slot power before plugging or unplugging module. Do not exceed rated output power of module. Use redundant configuration for important control rack to improve system reliability. Regularly clean dust on ventilation slots. Do not disassemble module housing without professional authorization. Replace module when persistent fault alarm occurs.
