{"product_id":"woodward-lr20025-multifunction-relay","title":"Woodward LR20025 Multifunction Relay","description":"\u003cp\u003eConfigured for wind turbine control and monitoring in turbine management systems, the \u003cstrong\u003eWoodward LR20025\u003c\/strong\u003e (\u003cstrong\u003eLR20025\u003c\/strong\u003e Multifunction Relay) provides direct electrical execution of voltage and current sensing via CAN bus communication.\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\u003eLR20025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e96 mm x 72 mm x 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Sensing\u003c\/td\u003e\n\u003ctd\u003e250-690 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Sensing\u003c\/td\u003e\n\u003ctd\u003e0.5-5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eActuator Loop Feedback Response and Thermal Heat Sink Dissipation Profiles\u003c\/h3\u003e\n\u003cp\u003eThe LR20025 integrates directly into the turbine control architecture, utilizing CAN bus protocol to report status and receive operational commands. The internal sensing circuitry is calibrated to manage high-voltage inputs (250-690 VAC) and current inputs (0.5-5 A) while maintaining signal accuracy. Thermal heat sink dissipation profiles for the relay enclosure are designed to support continuous operation under typical turbine nacelle temperature fluctuations. The relay maintains a stable actuator loop feedback response by processing electrical parameters and providing real-time data back to the primary PLC, ensuring the turbine system remains within programmed operational limits.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the LR20025 be replaced by other relay models if the original is unavailable?\u003c\/p\u003e\n\u003cp\u003eA: The LR20025 (MFR13) can be replaced by the MFR300 (Part number 8444-1093), which offers similar functionality for wind turbine applications. Ensure the existing CAN bus addressing and terminal wiring maps are verified before commissioning the replacement unit.\u003c\/p\u003e\n\u003cp\u003eQ: What are the primary communication requirements for integration with a PLC?\u003c\/p\u003e\n\u003cp\u003eA: The device communicates via CAN bus protocol. Ensure the PLC interface supports the relevant CAN bus baud rate and message structure required for relay monitoring and control.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the relay within the turbine control panel using the specified 96 x 72 mm cutout. Ensure the 130 mm depth allows for adequate cable routing and clearance from high-voltage power components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect sensing inputs for voltage (250-690 VAC) and current (0.5-5 A) to the designated terminals. Use appropriate gauge wire rated for the maximum expected current and voltage levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e Establish the CAN bus link to the PLC. Ensure proper termination of the CAN bus network at both ends to prevent data packet corruption and reflection errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Maintain physical and electrical separation between low-voltage CAN bus signal lines and high-voltage AC sensing circuits to prevent noise injection and protect the communication interface.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53005311377717,"sku":"LR20025","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/LR20025.png?v=1781597848","url":"https:\/\/www.5gplc.com\/products\/woodward-lr20025-multifunction-relay","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}