{"product_id":"woodward-9905-864-peak-150-series-digital-steam-turbine-controller","title":"Woodward 9905-864 | Peak 150 Series | Digital Steam Turbine Controller","description":"\u003carticle\u003e\n\u003ch3\u003e\n\u003cstrong\u003eProduct Description\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e9905-864\u003c\/strong\u003e from Woodward’s Peak 150 control platform is a microprocessor-based turbine control system engineered for reliable speed and load regulation of steam turbines in industrial environments. Designed for both standalone and integrated turbine applications, this controller provides advanced digital control algorithms, flexible signal interfacing, and robust communication capabilities.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e9905-864\u003c\/strong\u003e integrates multiple analog and digital interfaces that enable precise turbine speed management, automatic load control, and seamless integration with plant control architectures. Its sealed NEMA 4X enclosure ensures dependable performance in demanding operating environments such as power generation facilities, petrochemical plants, and heavy industrial installations.\u003c\/p\u003e\n\u003cp\u003eBuilt for field durability, the controller supports AC or DC supply inputs and provides configurable output signals for turbine monitoring and supervisory systems.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eKey Functional Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe controller supports sophisticated turbine regulation and system protection functions, including:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nDigital speed governing for steam turbine applications\n\u003c\/li\u003e\n\u003cli\u003e\nAutomatic load sharing and load control in generator systems\n\u003c\/li\u003e\n\u003cli\u003e\nIdle-to-rated speed switching with programmable ramp profiles\n\u003c\/li\u003e\n\u003cli\u003e\nSoft load transfer for smooth turbine synchronization\n\u003c\/li\u003e\n\u003cli\u003e\nOverspeed and load rejection management\n\u003c\/li\u003e\n\u003cli\u003e\nTorque limiting and MAP-based limiting functions\n\u003c\/li\u003e\n\u003cli\u003e\nAdaptive speed-sensing algorithms for improved stability\n\u003c\/li\u003e\n\u003cli\u003e\nBuilt-in data logging for operational diagnostics and maintenance analysis\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese capabilities allow the \u003cstrong\u003e9905-864\u003c\/strong\u003e controller to manage turbine operation with high precision while maintaining system stability during transient conditions.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\nParameter\n\u003c\/th\u003e\n\u003cth\u003e\nSpecification\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nManufacturer\n\u003c\/td\u003e\n\u003ctd\u003e\nWoodward\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nModel\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e9905-864\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nProduct Series\n\u003c\/td\u003e\n\u003ctd\u003e\nPeak 150 Digital Control\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nDevice Type\n\u003c\/td\u003e\n\u003ctd\u003e\nDigital Steam Turbine Controller\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nPower Supply\n\u003c\/td\u003e\n\u003ctd\u003e\nUniversal AC\/DC input\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nAnalog Input Range\n\u003c\/td\u003e\n\u003ctd\u003e\n4–20 mA or 1–5 VDC configurable\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nSpeed Feedback Output\n\u003c\/td\u003e\n\u003ctd\u003e\nScalable 4–20 mA or 0–1 mA\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nPWM Output\n\u003c\/td\u003e\n\u003ctd\u003e\nLow-current PWM signal for synchronizer or bias control\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nCommunication Interfaces\n\u003c\/td\u003e\n\u003ctd\u003e\nRS-232, RS-422 serial communications\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nProtocol Support\n\u003c\/td\u003e\n\u003ctd\u003e\nOptional Modbus serial communication\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nEnclosure Protection\n\u003c\/td\u003e\n\u003ctd\u003e\nNEMA 4X sealed industrial enclosure\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cstrong\u003eEnvironmental Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\nParameter\n\u003c\/th\u003e\n\u003cth\u003e\nRange\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nOperating Temperature\n\u003c\/td\u003e\n\u003ctd\u003e\n–25°C to +60°C\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nStorage Temperature\n\u003c\/td\u003e\n\u003ctd\u003e\n–40°C to +85°C\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\nEnvironmental Protection\n\u003c\/td\u003e\n\u003ctd\u003e\nCorrosion-resistant outdoor enclosure\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe environmental ratings allow reliable deployment in harsh industrial environments including turbine halls, outdoor generator stations, and process facilities.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTypical Industrial Applications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e9905-864\u003c\/strong\u003e turbine controller is commonly implemented in systems requiring precise speed regulation and load control, including:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nSteam turbine generator control systems\n\u003c\/li\u003e\n\u003cli\u003e\nIndustrial turbine drives for compressors and pumps\n\u003c\/li\u003e\n\u003cli\u003e\nGas and diesel engine governor systems\n\u003c\/li\u003e\n\u003cli\u003e\nCogeneration and power plant turbine installations\n\u003c\/li\u003e\n\u003cli\u003e\nMechanical drive turbine applications in petrochemical plants\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts flexibility makes it suitable for both new turbine installations and modernization upgrades of existing turbine control panels.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFAQ\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat control functions does the 9905-864 provide?\u003c\/strong\u003e\r\nThe controller supports turbine speed regulation, load sharing, synchronization assistance, ramp control, load rejection handling, and protective limiting functions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the controller communicate with plant control systems?\u003c\/strong\u003e\r\nYes. The controller supports RS-232 and RS-422 serial communication, and many installations integrate it using the Modbus protocol for supervisory monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the unit suitable for outdoor turbine installations?\u003c\/strong\u003e\r\nYes. The NEMA 4X enclosure protects against moisture, dust, and corrosion, allowing deployment in outdoor or harsh industrial environments.\u003c\/p\u003e\n\u003c\/article\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":52762132775197,"sku":"9905-864","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/9905-864-2_1000.jpg?v=1787222605","url":"https:\/\/www.6gcontrols.com\/products\/woodward-9905-864-peak-150-series-digital-steam-turbine-controller","provider":"6G Controls","version":"1.0","type":"link"}