{"product_id":"woodward-9907-167-digital-governor","title":"Woodward 9907-167 Digital Governor","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward 9907-167\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e9907-167\u003c\/strong\u003e Digital Governor, operates as a dedicated hardware component for 32-bit microprocessor-based steam turbine control within industrial governing systems.\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\u003e9907-167\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\u003e\u0026lt; 10 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e14 x 11 x 4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to 65 deg C (Standard); -25 to 55 deg C (w\/ NEMA 4X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e18 - 32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003e32-bit microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActuator Outputs\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Outputs\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgrammable Current Outputs\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Protection\u003c\/td\u003e\n\u003ctd\u003eUS MIL-STD-810C, method 516.2- 1, procedure 1B\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 9907-167 maintains precise turbine valve positioning via two dedicated actuator outputs. These outputs provide the necessary control signals to modulate inlet steam valves, utilizing high-speed feedback loops to ensure stable governor response. The system resolution is managed via a 32-bit architecture, which minimizes latency in actuator command execution. Periodic calibration of the actuator loop feedback is required to maintain steam turbine stability, particularly when operating under variable extraction or admission pressure conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 9907-167 support field configuration changes?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the unit is equipped with program upload and download capability via the operator interface, allowing for site-specific parameter adjustments to the governor control logic.\u003c\/p\u003e\n\u003cp\u003eQ: How does the NEMA 4X enclosure affect thermal performance?\u003c\/p\u003e\n\u003cp\u003eA: The addition of a NEMA 4X protective casing limits the maximum allowable ambient operating temperature from 65 deg C down to 55 deg C. Ensure adequate ventilation or auxiliary cooling is provided if the cabinet temperature approaches this limit.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Ensure the enclosure is securely fastened within a control panel. If utilizing the NEMA 4X casing, confirm all seals are intact to maintain the ingress protection rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Verify the control chassis is connected to a common earth ground to mitigate electromagnetic interference and ensure stable 32-bit processor operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Route signal lines (analog\/actuator) separately from high-voltage AC power cables to prevent induced noise in the current output loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Utilize the 30-key keypad and 2-row display for initial commissioning and verification of I\/O status prior to putting the turbine online.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidation:\u003c\/strong\u003e Before startup, perform a cold-loop check of the 8 relay outputs and 6 current outputs to verify continuity and signal integrity to the field devices.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53002093101365,"sku":"9907-167","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/9907-167.png?v=1781504945","url":"https:\/\/www.5gplc.com\/products\/woodward-9907-167-digital-governor","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}