{"product_id":"pw481-50-s2-yokogawa-power-supply-datasheet-technical-manual","title":"PW481-50 S2 YOKOGAWA Power Supply Datasheet \u0026 Technical Manual","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA PW481-50 S2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePW481\u003c\/strong\u003e Power Supply Module, operates as a dedicated hardware component for power regulation within Yokogawa DCS platforms. This module executes the conversion of incoming supply voltage into a regulated DC output, maintaining the operational voltage rails required for system backplane logic and associated instrumentation.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe model identifier PW481-50 S2 designates a specific hardware iteration. The \"S2\" suffix indicates an optimized revision for system backplanes, ensuring mechanical alignment and interface compatibility with standard Yokogawa control bus architectures.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePW481-50 S2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.18 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 18.1 cm x 12.7 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLoad dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Isolation\u003c\/h3\u003e\n\u003cp\u003eThe PW481-50 S2 ensures consistent voltage delivery, which is necessary to maintain the integrity of the 4-20 mA HART loop protocol across the control environment. The unit features channel-to-channel isolation to prevent the propagation of common-mode electrical noise or ground loops between control segments. Additionally, the internal thermal management system facilitates cold junction compensation (CJC), providing the electrical stability required for high-precision process measurement and control tasks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the PW481-50 S2 support redundant power supply configurations?\u003c\/p\u003e\n\u003cp\u003eA: Yes, this module supports parallel operation within a redundant power supply chassis. The internal bus circuitry is designed to manage automatic load balancing and failover, provided that both modules are connected to independent power input lines.\u003c\/p\u003e\n\u003cp\u003eQ: How can I verify that the module is operating within nominal parameters?\u003c\/p\u003e\n\u003cp\u003eA: Monitor the status LEDs on the front panel and verify the DC output voltage at the backplane test points using a calibrated multimeter. Any deviation from the nominal output voltage under load may indicate internal component degradation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm that the input power source is de-energized before mounting the module to the backplane.\u003c\/li\u003e\n\u003cli\u003eAlign the module with the chassis guide rails and apply firm pressure until the connector pins fully engage with the backplane bus.\u003c\/li\u003e\n\u003cli\u003eTighten the front panel fastening hardware to ensure a low-impedance connection to the chassis protective earth (PE) ground.\u003c\/li\u003e\n\u003cli\u003eVerify the output voltage at the backplane test points using a calibrated multimeter before commissioning the connected I\/O cards.\u003c\/li\u003e\n\u003cli\u003eInspect the wiring connections periodically to ensure terminals remain tight, as vibration in industrial environments can lead to intermittent power delivery.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49137347625212,"sku":"PW481-50 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/PW481-501.jpg?v=1779760807","url":"https:\/\/www.electronicplc.com\/products\/pw481-50-s2-yokogawa-power-supply-datasheet-technical-manual","provider":"Electronic PLC","version":"1.0","type":"link"}