{"product_id":"8290-185-woodward-epg-series-datasheet-technical-manual","title":"8290-185 Woodward EPG Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eWoodward 8290-185 EPG Electrically Powered Governor\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward 8290-185\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eWoodward 8290-185\u003c\/strong\u003e Speed Control Module, operates as a dedicated hardware component for engine management execution within EPG product networks. Configured for high-performance speed regulation in diesel, gas, or gasoline prime movers, the device establishes continuous closed-loop control by processing frequency feedback data from a magnetic pickup sensor.\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\u003e8290-185\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\u003e0.94 kg (2.07 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard EPG chassis profile (Panel mount compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +75 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e95 VA maximum during actuator full-stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e12\/24 VDC nominal (18 - 32 VDC operating range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Sensing\u003c\/td\u003e\n\u003ctd\u003eMagnetic Pickup (MPU) signal (Minimum 1.5 Vrms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e3000 Hz to 6000 Hz at rated engine speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Type\u003c\/td\u003e\n\u003ctd\u003eIsochronous speed regulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActuator Compatibility\u003c\/td\u003e\n\u003ctd\u003eOptimized for Woodward 512, 524, or 1724 EPG series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eSecure screw clamp terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eV\/Hz and Field-Oriented Vector Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe speed control logic acts alongside localized V\/Hz and field-oriented vector control systems via direct driving of mechanical fuel pumps or air throttles. It measures the high-frequency MPU AC waveform and applies real-time analog filtration for electromagnetic interference suppression. When load transients induce transient engine droop, the module accelerates the actuator loop feedback response to match power demands. This responsive throttle balancing preserves electrical frequency boundaries on synchronous generator configurations, containing thermal heat sink dissipation profiles within neighboring alternators or voltage regulators.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What happens if the input signal from the Magnetic Pickup (MPU) drops below 1.5 Vrms?\u003c\/p\u003e\n\u003cp\u003eA: The speed control circuit cannot track the frequency profiles accurately if the voltage dips below the 1.5 Vrms threshold. This loss of input signal triggers an automatic hardware shutdown, dropping actuator current to prevent engine overspeed conditions.\u003c\/p\u003e\n\u003cp\u003eQ: Can this governor module execute droop speed control parallel operations?\u003c\/p\u003e\n\u003cp\u003eA: No. The 8290-185 hardware is structured for isochronous control, meaning it maintains a constant engine speed regardless of load variations. For droop paralleling layouts, a separate external droop kit or load-sharing module must interface with the governor control circuit.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the chassis inside a weather-protected control panel space, making sure that it is isolated from high-vibration sources on the engine block.\u003c\/li\u003e\n\u003cli\u003eComplete all low-level signal terminations, including the MPU sensor input, using shielded twisted-pair cabling to minimize outside electrical interference.\u003c\/li\u003e\n\u003cli\u003eGround the cable shields explicitly at the governor chassis grounding terminal only, keeping the sensor end of the shield isolated.\u003c\/li\u003e\n\u003cli\u003eAdjust the on-board potentiometers for Rated Speed, Gain, and Stability sequentially during engine commissioning to achieve stable engine RPM recovery performance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42870825943130,"sku":"LR20949","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/202_bebed30a-7c82-4797-945e-2911c42ef1c0.jpg?v=1772768997","url":"https:\/\/www.spareoil.com\/products\/8290-185-woodward-epg-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}