{"product_id":"mrd1g5ma-woodward-mrd-series-datasheet-technical-manual","title":"MRD1G5MA Woodward MRD Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eWoodward MRD1G5MA MRD Series\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward MRD1G5MA\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMRD1G5MA\u003c\/strong\u003e Digital Speed Control Module, operates as a dedicated hardware component for precise engine speed control within governor and actuator control 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\u003eMRD1G5MA\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\u003e1.5 - 1.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e273.6 x 214.1 x 59.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e 10 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power\u003c\/td\u003e\n\u003ctd\u003e12-32 VDC (typical 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003e0-10,000 RPM (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e3-phase current inputs (5 A nominal), optional analog inputs (4-20 mA, RTD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003eVoltage or pulse signal for governor control; 4 relay outputs (250 VAC \/ 5 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003e2x Ethernet, 1x RS232, 1x RS485 (Modbus RTU), CANbus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP43 (base variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL\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 deterministic internal processing loops optimized for real-time actuator loop feedback response. Mechanical sensor data from the rotating shaft is sampled and reconciled against governor targets within a \u0026lt; 50 ms calculation window. The internal electrical design implements specific thermal heat sink dissipation profiles to prevent component calibration drift across the 12-32 VDC operational power input range during sustained high-load excitation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the hardware respond to transient load variations in the speed regulation loop?\u003c\/p\u003e\n\u003cp\u003eA: The processor executes control calculations within a \u0026lt; 50 ms window, generating immediate voltage or pulse signal corrections to adjust the actuator position and maintain the configured RPM setpoint.\u003c\/p\u003e\n\u003cp\u003eQ: Can the communication interfaces operate concurrently during active regulation?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The hardware architecture separates the processing for the dual Ethernet ports from the serial RS-485 Modbus RTU and CANbus interfaces, preventing bus latency from impacting real-time speed regulation loops.\u003c\/p\u003e\n\u003cp\u003eQ: What diagnostic logging capacity is resident on the local hardware memory?\u003c\/p\u003e\n\u003cp\u003eA: The unit features non-volatile memory that retains an event log of up to 200 distinct fault detection sequences and system events independent of external network connectivity.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Rigidity:\u003c\/strong\u003e Secure the module inside the enclosure panel using the designated mounting footprints to minimize the transmission of mechanical vibration from engines or turbines to the internal printed circuit boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding Protocol:\u003c\/strong\u003e Terminate all speed sensor, RTD, and 4-20 mA loop shields directly to the master chassis earth busbar. Do not float the shield or loop it through intermediate terminal blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Routing:\u003c\/strong\u003e Maintain physical separation between the 24 VDC power\/signal lines and any high-voltage AC lines (such as the 250 VAC relay output wiring) to prevent electromagnetic cross-talk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvection Clearance:\u003c\/strong\u003e Allow a minimum of 50 mm clearance above and below the module housing to facilitate unobstructed air distribution across the internal heat dissipation surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":43431303544922,"sku":"MRD1G5MA","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/281._6d3aecfb-3fc7-4ea6-89aa-0fa0bdc33d4e.jpg?v=1780016803","url":"https:\/\/www.spareoil.com\/products\/mrd1g5ma-woodward-mrd-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}