{"product_id":"woodward-8290-048-epg-512-524-engine-speed-controller","title":"Woodward 8290-048 EPG 512\/524 Engine Speed Controller","description":"\u003ch3\u003e\u003cspan\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003e8290-048\u003c\/span\u003e is an electronic governing module from Woodward’s Electrically Powered Governor (EPG) 512\/524 platform. The \u003cspan\u003e8290-048\u003c\/span\u003e is engineered for low-speed engine applications and operates typically on 24 VDC systems.\u003c\/p\u003e\n\u003cp\u003eThis controller forms a compact governing solution when paired with a magnetic pickup and a compatible EPG actuator. It directly regulates fuel delivery based on real-time speed feedback, providing stable and responsive engine performance without requiring mechanical or hydraulic components.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" width=\"NaN\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\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\u003e\u003cspan\u003e8290-048\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eEPG 512\/524\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e12 \/ 24 VDC (optimized for 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003e1,000 to 3,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Input\u003c\/td\u003e\n\u003ctd\u003eMagnetic Pickup (1.0–30 Vrms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDedicated EPG actuator drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Stability\u003c\/td\u003e\n\u003ctd\u003e±0.25% of rated speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +75°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eFunctional Description\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003e8290-048\u003c\/span\u003e operates as a closed-loop electronic governor. It compares the incoming speed signal with a predefined setpoint and adjusts actuator output accordingly.\u003c\/p\u003e\n\u003cp\u003eDesigned for direct control of EPG actuators (such as models 512 and 524), the module provides precise fuel positioning, ensuring stable engine speed across varying load conditions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eSimplified System Architecture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe controller is part of a minimal three-component setup consisting of the control unit, a magnetic pickup sensor, and an actuator. This reduces installation complexity and improves system reliability, especially in retrofit scenarios.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIsochronous Speed Regulation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003ePrimarily designed for constant-speed operation, the unit maintains engine speed within tight tolerance regardless of load changes. External configuration can enable droop characteristics when required for parallel operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable Dynamic Response\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eFront-panel potentiometers allow engineers to fine-tune system behavior:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSpeed Setting: Defines the target operating speed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGain: Controls response sensitivity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability: Minimizes oscillation and improves smoothness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eStart Fuel Limiting Function\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe controller includes a startup control feature that restricts fuel delivery during cranking. This reduces exhaust smoke and prevents overspeed during engine start-up phases.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eApplication Areas\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003e8290-048\u003c\/span\u003e is commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDiesel engine generator sets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGas engine control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial pumps and compressors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRetrofit replacements for mechanical governors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is especially suitable for small to mid-sized engines requiring dependable electronic speed regulation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eComparison with 2301A Controllers\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003e8290-048\u003c\/span\u003e differs significantly from Woodward 2301A series controllers:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e8290-048 (EPG)\u003c\/span\u003e: Standalone speed control designed for direct actuator operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e2301A Series\u003c\/span\u003e: Advanced controllers with load-sharing capabilities for multi-generator systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSelection depends on system complexity and whether load-sharing functionality is required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cspan\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat actuator is compatible with this controller?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eIt is designed to operate with Woodward EPG actuators, particularly models 512 and 524.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this unit be used for generator paralleling?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eIt primarily supports isochronous control. Droop operation is possible but requires additional external configuration.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it suitable for retrofit projects?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eYes, its simple architecture makes it a common replacement for older mechanical governing systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat type of speed sensor is required?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eA magnetic pickup sensor is required to provide frequency-based speed feedback.\u003c\/p\u003e","brand":"WOODWARD","offers":[{"title":"Default Title","offer_id":44092080521315,"sku":"8290-048","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/8290-048.jpg?v=1774937498","url":"https:\/\/precisemodule.com\/products\/woodward-8290-048-epg-512-524-engine-speed-controller","provider":"Precise Module Ltd.","version":"1.0","type":"link"}