{"product_id":"mfr13-multifunction-relay-woodward-lr20025","title":"MFR13 Multifunction Relay Woodward LR20025","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward LR20025\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMFR13\u003c\/strong\u003e Multifunction Relay, operates as a dedicated hardware component for wind turbine electrical sensing and control execution within turbine PLC communication networks.\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 (MFR13)\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2kg\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\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial operating range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eCAN bus powered \/ auxiliary loop powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Sensing Range\u003c\/td\u003e\n\u003ctd\u003e250 to 690 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Sensing Range\u003c\/td\u003e\n\u003ctd\u003e0.5 to 5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eCAN bus interface to higher-level PLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Replacement\u003c\/td\u003e\n\u003ctd\u003eMFR300 (Part Number 8444-1093)\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 CAN Bus Integration\u003c\/h3\u003e\n\u003cp\u003eThe Woodward LR20025 process high-voltage line signals ranging from 250 to 690 VAC alongside current sensing inputs from 0.5 to 5 A to provide deterministic actuator loop feedback response. Interfacing directly with primary wind turbine control PLCs via an integrated CAN bus, the unit delivers real-time power parameters and status monitoring. Closed-loop processing enables rapid tripping and signal exchange to adjust blade pitch, generator engagement, or contactor isolation during line voltage or current anomalies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the primary electrical voltage and current sensing capabilities of the Woodward LR20025?\u003c\/p\u003e\n\u003cp\u003eA: The relay supports direct AC voltage sensing from 250 to 690 VAC (50\/60 Hz) and current sensing levels between 0.5 and 5 A.\u003c\/p\u003e\n\u003cp\u003eQ: How does the Woodward LR20025 communicate with the main controller?\u003c\/p\u003e\n\u003cp\u003eA: The unit utilizes a built-in CAN bus protocol interface to transfer electrical parameters and alarm telemetry directly to an upstream PLC.\u003c\/p\u003e\n\u003cp\u003eQ: What is the designated functional replacement part for the LR20025 MFR13 relay?\u003c\/p\u003e\n\u003cp\u003eA: The unit can be functionally replaced by the Woodward MFR300 module under part number 8444-1093.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the relay within a shielded control cabinet to ensure mechanical stability and protection from industrial contamination.\u003c\/li\u003e\n\u003cli\u003eRoute high-voltage AC voltage sensing wires (up to 690 VAC) in separate conduits from low-voltage CAN bus communication cables to prevent noise induction.\u003c\/li\u003e\n\u003cli\u003eEnsure proper cable shielding on all CAN bus network lines, grounding the shield at a single point to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eVerify current transformer (CT) secondary wiring polarities and ensure current sensing loops do not exceed the specified 0.5 to 5 A limits prior to powering the system.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":50694637519100,"sku":"LR20025","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/LR20025.jpg?v=1785116692","url":"https:\/\/www.electronicplc.com\/ar\/products\/mfr13-multifunction-relay-woodward-lr20025","provider":"Electronic PLC","version":"1.0","type":"link"}