{"product_id":"mrd1t2htl6m42-woodward-highprotec-mrdt4-series-datasheet-technical-manual","title":"MRD1T2HTL6M42 Woodward HighPROTEC MRDT4 Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eWoodward MRD1T2HTL6M42 HighPROTEC MRDT4 Series\u003c\/h2\u003e\n\u003cp\u003eConfigured for precise engine speed control and transformer differential protection in industrial substations, the \u003cstrong\u003eWoodward MRD1T2HTL6M42\u003c\/strong\u003e (\u003cstrong\u003eMRD1T2HTL6M42\u003c\/strong\u003e Digital Speed Control Module) provides direct physical\/electrical execution.\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\u003eMRD1T2HTL6M42\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\u003e1.55 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e350 x 120 x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e10 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24-250 V DC \/ 110-240 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCT Inputs\u003c\/td\u003e\n\u003ctd\u003eSupports 1 A and 5 A current transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Inputs\u003c\/td\u003e\n\u003ctd\u003eUp to 800 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e8 configurable DI channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003e7 relay contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e2x Ethernet, 1x RS232, 1x RS485 (Modbus RTU, Ethernet TCP\/IP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, SIL-compliant\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\u003c\/h3\u003e\n\u003cp\u003eThe module contains specific hardware sub-circuits optimized for actuator loop feedback response and harmonic distortion suppression. Internal processing components execute percentage differential operations paired with harmonic restraint to filter transient transformer inrush currents from true physical faults. The high-speed physical interface continuously reconciles actuator speed loops and input current transformer vectors to ensure deterministic processing execution under fluctuating electrical load profiles.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the hardware handle current transformer mismatches within the differential zone?\u003c\/p\u003e\n\u003cp\u003eA: The internal processing architecture allows software scaling parameters to adjust for physical CT ratios from 1:1 up to 10000:1, balancing the current vectors prior to executing the differential protection algorithm.\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary function of the dual Ethernet interfaces on this hardware?\u003c\/p\u003e\n\u003cp\u003eA: The dual Ethernet ports facilitate separate, independent physical connections to SCADA and distributed control network structures, allowing concurrent Modbus TCP\/IP communication without latency degradation.\u003c\/p\u003e\n\u003cp\u003eQ: Can the internal relay contacts be used for direct high-voltage breaker tripping?\u003c\/p\u003e\n\u003cp\u003eA: The 7 digital output relay contacts are configured to pilot external heavy-duty trip relays or meet specific control loop interlock limits within rated contact capacity thresholds.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Protocol:\u003c\/strong\u003e Secure the housing to a standard grounding-compliant DIN-rail or panel cut-out, ensuring the physical layout allows unhindered convection cooling airflow across the integrated heat sink paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCT Circuit Wiring:\u003c\/strong\u003e Ensure all external current transformer circuits are properly shorted before disconnecting or servicing the primary AC analog input terminal blocks to avoid dangerous high-voltage transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding Rules:\u003c\/strong\u003e Use twisted, multi-shielded instrumentation cable for all RS485 and low-voltage digital signal pathways, terminating the shield drain wires strictly at the central enclosure earth ground bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Screw Tightening:\u003c\/strong\u003e Torque all electrical terminal screws to the manufacturer-specified limits to maintain gas-tight connections and prevent localized thermal stress caused by vibration-induced terminal resistance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":43431294500954,"sku":"MRD1T2HTL6M42","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/280._834e3bba-348e-4f00-8954-aa25b4b5108b.jpg?v=1780016330","url":"https:\/\/www.spareoil.com\/products\/mrd1t2htl6m42-woodward-highprotec-mrdt4-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}