{"product_id":"8271-929-woodward-mpu-high-signal-selector","title":"8271-929 | Woodward MPU High Signal Selector","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eThe \u003cstrong data-start=\"271\" data-end=\"283\"\u003e8271-929\u003c\/strong\u003e from Woodward is a dedicated MPU High Signal Selector designed for redundant speed sensing systems.\u003cbr data-start=\"383\" data-end=\"386\"\u003eIt continuously compares multiple magnetic pickup signals and outputs the highest valid frequency signal.\u003cbr data-start=\"491\" data-end=\"494\"\u003eTherefore, the module improves speed measurement reliability in engines, turbines, and generator control systems.\u003cbr data-start=\"607\" data-end=\"610\"\u003eMoreover, Woodward designed this selector to operate consistently under vibration, temperature variation, and electrical noise.\u003cbr\u003e\u003c\/p\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMPU High Signal Selector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e8271 Signal Conditioning Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eSelects highest valid MPU frequency signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eMagnetic Pickup (MPU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e2 independent MPU inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Form\u003c\/td\u003e\n\u003ctd\u003eVariable frequency AC sine wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e50 Hz to 10,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Input Voltage\u003c\/td\u003e\n\u003ctd\u003e≥ 1.0 Vrms (typical MPU signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Voltage\u003c\/td\u003e\n\u003ctd\u003e≤ 50 Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003eHigh impedance, MPU compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Type\u003c\/td\u003e\n\u003ctd\u003eMPU frequency output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Selection Logic\u003c\/td\u003e\n\u003ctd\u003eHighest valid frequency comparison\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Form\u003c\/td\u003e\n\u003ctd\u003eAC frequency signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Response Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18–32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Energy Storage\u003c\/td\u003e\n\u003ctd\u003eYes, for voltage stabilization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eFunctional isolation between channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Immunity\u003c\/td\u003e\n\u003ctd\u003eHigh, suitable for industrial environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-55 °C to +85 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eDesigned for engine and turbine environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Method\u003c\/td\u003e\n\u003ctd\u003ePanel mount or DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eIndustrial sealed housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Access\u003c\/td\u003e\n\u003ctd\u003eFront-access terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.6 kg (1.32 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical System Role\u003c\/td\u003e\n\u003ctd\u003eRedundant speed signal conditioning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eWoodward speed controls and ESD systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the main function of the 8271-929 MPU High Signal Selector?\u003c\/strong\u003e\u003cbr\u003eA1:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecompares two MPU speed signals in real time and outputs the highest valid frequency for reliable control decisions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Which input signals does the 8271-929 support in speed control systems?\u003c\/strong\u003e\u003cbr\u003eA2:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports dual magnetic pickup inputs with AC sine wave signals across a wide industrial frequency range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: How does the 8271-929 improve system reliability in critical applications?\u003c\/strong\u003e\u003cbr\u003eA3:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures redundancy by preventing signal loss, therefore maintaining stable speed feedback during sensor degradation scenarios.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Is the 8271-929 compatible with Woodward governors and ESD systems?\u003c\/strong\u003e\u003cbr\u003eA4:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eintegrates seamlessly with Woodward speed controls, load sharing modules, and emergency shutdown systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: What is the delivery and logistics policy for the 8271-929 module?\u003c\/strong\u003e\u003cbr\u003eA5:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8271-929\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis brand new and original, in stock, and ships within 3 days to 2 weeks via DHL or equivalent logistics.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall within Woodward control racks or cabinets\u003c\/li\u003e\n\u003cli\u003eConnect directly to magnetic pickup sensors near turbine or engine shafts\u003c\/li\u003e\n\u003cli\u003eUse proper wiring and shielding to prevent electrical noise interference\u003c\/li\u003e\n\u003cli\u003eCalibration and verification of MPU signals may be required during commissioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42938393362499,"sku":"8271-929","price":234.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/5810\/3107\/files\/8271-929WoodwardMPUHighSignalSelector_5.jpg?v=1770259882","url":"https:\/\/www.plcdcspro.com\/products\/8271-929-woodward-mpu-high-signal-selector","provider":"PLC DCS Pro Ltd.","version":"1.0","type":"link"}