{"product_id":"woodward-9905-857-peak-150-steam-turbine-controller","title":"WOODWARD 9905-857 Peak 150 Steam Turbine Controller","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward 9905-857\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e9905-857\u003c\/strong\u003e Speed Control Module, serves as the primary \u003cstrong\u003ePeak 150\u003c\/strong\u003e Steam Turbine Controller utilized to execute precise speed regulation across single-valve or single-valve rack steam turbine platforms. This dedicated hardware governor tracks physical rotation dynamics via specialized sensor inputs and drives electro-hydraulic or electro-mechanical actuators to maintain tight speed boundaries during continuous-duty operation.\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\u003e9905-857\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePeak 150 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard Peak 150 chassis mass profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e483 mm x 310 mm x 105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +60 deg C (-13 to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C (-40 to +185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal operating voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e38 W maximum load profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Configuration\u003c\/td\u003e\n\u003ctd\u003e5-digit integrated LED speed display window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Compatibility\u003c\/td\u003e\n\u003ctd\u003eNEMA D design parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulatory Compliance\u003c\/td\u003e\n\u003ctd\u003eCSA Listed (Class I, Division 2, Groups A, B, C, \u0026amp; D hazardous locations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003eMIL-STD-810C Method 516.2 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eMIL-STD-167 Type 1 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Standard\u003c\/td\u003e\n\u003ctd\u003eMIL-STD-810D Method 507.2 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCore Functional Interface Elements\u003c\/h3\u003e\n\u003cp\u003eThe front panel interface integrates direct hardware diagnostic reporting and manual command arrays:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Readout Matrix:\u003c\/strong\u003e A high-visibility 5-digit LED display mapped to continuous real-time revolutions-per-minute (RPM) data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LED Indication Array:\u003c\/strong\u003e Six independent solid-state indicators tracking active operational states including CPU health, magnetic pickup unit (MPU) signal integrity, remote speed setting engagement, system shutdown, and overspeed test mode verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTactile Keypad Switches:\u003c\/strong\u003e Six dedicated physical switches designed to execute field-level manual speed adjustments, alarm reset actions, and local emergency shutdown override sequences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Drives and Governor Loop Communication\u003c\/h3\u003e\n\u003cp\u003eThe governor module implements high-speed actuator loop feedback response matrices to maintain turbine stability under dynamic load variations. When tracking raw input frequencies from speed sensors, the controller processes signals derived from redundant magnetic pickup units. Remote speed setpoints are tracked continuously via an isolated 4-20 mA analog input loop configuration.\u003c\/p\u003e\n\u003cp\u003eThe hardware architecture incorporates dedicated data and circuit isolation parameters to decouple internal processing logic from external field electrical noise. This structural barrier shields the microprocessor from high-voltage transients and prevents external grounding loop differentials from causing register bit corruption or parameter drift. The internal logic executes specialized routines, including a critical speed avoidance matrix to transition the turbine quickly through resonant mechanical frequencies, and a magnetic pickup failsafe block that triggers an immediate shutdown if speed feedback signal continuity is lost, ensuring fail-safe execution without adding propagation delays to the mechanical safety loop.\u003c\/p\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":45079882891379,"sku":"9905-857","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-08_17-27-32_bb663e23-2f56-422f-8146-34cf2f3a8ebc.png?v=1780912687","url":"https:\/\/www.dcssupplier.com\/products\/woodward-9905-857-peak-150-steam-turbine-controller","provider":"DcsSupplier Limited","version":"1.0","type":"link"}