{"product_id":"9907-162-505-series-digital-governor-woodward","title":"9907-162 505 Series Digital Governor | Woodward","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward 9907-162\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e9907-162\u003c\/strong\u003e Digital Governor, operates as a dedicated hardware component for steam turbine management within MicroNet and 505 control platforms.\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\u003e9907-162\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\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e9.11 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11 x 14 x 4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e+24 VDC at 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X \/ IP 56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Interface\u003c\/td\u003e\n\u003ctd\u003e30-key Multi-function Keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS-232, RS-422, RS-485\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 9907-162 utilizes a microprocessor-based architecture to process turbine speed and process variables into precise control commands. The unit features 2 dedicated actuator outputs, which are modulated to maintain stable governor performance under varying steam load conditions. To ensure a consistent actuator loop feedback response, the controller supports high-speed data acquisition from speed sensors and process transmitters. Programmable current outputs (6 total) allow for fine-tuned control of auxiliary hydraulic or electric actuators. The system is designed to provide rapid transient response during load rejection or synchronization events, with integrated software support for OpView and 505View applications to monitor loop stability and actuator drive current.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the unit support multiple serial communication protocols simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: The hardware supports RS-232, RS-422, and RS-485 interfaces. Users should verify the cabling configuration and software port settings match the required protocol for the intended host controller or external HMI connection.\u003c\/p\u003e\n\u003cp\u003eQ: What is the functionality of the integrated Emergency Stop and Overspeed Test buttons?\u003c\/p\u003e\n\u003cp\u003eA: These physical inputs are hardwired into the controller's safety logic to trigger an immediate de-energization of the actuator outputs. The Overspeed Test button allows for functional verification of the speed sensing circuit and overspeed trip logic without requiring actual overspeed conditions on the turbine rotor.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Install the unit in an enclosure that meets NEMA 4X or IP 56 ratings to protect the 11 x 14 x 4 inch chassis from moisture and particulate ingress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Use shielded cabling for all analog inputs and actuator outputs. Terminate shields to the designated ground studs on the unit chassis to maintain signal integrity and satisfy electromagnetic compatibility requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e Connect to a regulated +24 VDC power source capable of delivering at least 1 A. Ensure power cabling is twisted-pair to minimize noise coupling into the sensitive analog signal loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidation:\u003c\/strong\u003e Upon startup, perform a loop test of the 6 programmable current outputs and 8 relay outputs to confirm correct mapping to field devices. Verify communication handshake over the serial ports before enabling full automatic control mode.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53002243342645,"sku":"9907-162","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/9907-167_555cd1ca-838f-44a2-867b-eba16b73fae8.png?v=1781513423","url":"https:\/\/www.5gplc.com\/products\/9907-162-505-series-digital-governor-woodward","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}