{"product_id":"8440-2028-woodward-digital-i-o-expansion-board","title":"8440-2028 | Woodward Digital I\/O Expansion Board","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eWoodward\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e8440-2028 Digital I\/O Expansion Board\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eexpands control capability for demanding industrial automation environments.\u003cbr\u003eThis module increases discrete input and output capacity for advanced turbine and engine control systems.\u003cbr\u003eEngineers deploy it when additional field signals must be integrated without redesigning the main controller architecture.\u003cbr\u003eMoreover, the board supports stable signal processing in vibration-prone and temperature-variable installations.\u003cbr\u003eIt integrates directly with compatible Woodward control platforms, ensuring predictable configuration and commissioning workflows.\u003c\/p\u003e\n\u003cp\u003eThe 8440-2028 board is typically installed in generator control panels, turbine control cabinets, and engine management systems.\u003cbr\u003eTherefore, it provides a practical solution for system upgrades, retrofits, and capacity expansions.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnical Category\u003c\/th\u003e\n\u003cth\u003eDetailed Specification\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\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e8440-2028\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital I\/O Expansion Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Role\u003c\/td\u003e\n\u003ctd\u003eExpands discrete input and output capacity for controller systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegration Method\u003c\/td\u003e\n\u003ctd\u003eDirect backplane or controller interface connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eWoodward digital turbine and engine control platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Input Type\u003c\/td\u003e\n\u003ctd\u003eVoltage sensing or dry contact inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC industrial standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18–32 VDC typical tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Isolation\u003c\/td\u003e\n\u003ctd\u003eElectrically isolated channels or grouped isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Response\u003c\/td\u003e\n\u003ctd\u003eMillisecond-level switching detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Status Indication\u003c\/td\u003e\n\u003ctd\u003eLED indicators per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Output Type\u003c\/td\u003e\n\u003ctd\u003eSolid-state or transistor switching outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Output Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC control level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003eIndustrial-rated per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Protection\u003c\/td\u003e\n\u003ctd\u003eIntegrated short-circuit and overload protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Isolation\u003c\/td\u003e\n\u003ctd\u003eElectrical isolation from logic circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Performance\u003c\/td\u003e\n\u003ctd\u003eSuitable for protection, alarm, and sequencing tasks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Source\u003c\/td\u003e\n\u003ctd\u003eProvided by host controller or system backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLow-power expansion module architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMC Protection\u003c\/td\u003e\n\u003ctd\u003eDesigned for industrial electromagnetic environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge\/Transient Immunity\u003c\/td\u003e\n\u003ctd\u003eSuitable for control cabinet installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003eIndustrial-rated operating range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003eExtended storage tolerance range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5–95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003eSuitable for engine-driven and turbine installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRack or panel-mounted inside enclosed cabinet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eIndustrial screw or pluggable terminal blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Method\u003c\/td\u003e\n\u003ctd\u003eNatural convection within control enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eServiceability\u003c\/td\u003e\n\u003ctd\u003eField-replaceable expansion module design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003csection\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"4492\" data-end=\"4650\"\u003eQ1: What is the primary function of the 8440-2028 board?\u003cbr data-start=\"4548\" data-end=\"4551\"\u003eA1: The board expands digital input and output capacity within compatible Woodward control systems.\u003c\/p\u003e\n\u003cp data-start=\"4652\" data-end=\"4781\"\u003eQ2: Can this module be used in turbine applications?\u003cbr data-start=\"4704\" data-end=\"4707\"\u003eA2: Yes, it is commonly installed in gas and steam turbine control panels.\u003c\/p\u003e\n\u003cp data-start=\"4783\" data-end=\"4917\"\u003eQ3: Does the board provide electrical isolation?\u003cbr data-start=\"4831\" data-end=\"4834\"\u003eA3: Yes, electrical isolation protects the controller from field-side disturbances.\u003c\/p\u003e\n\u003cp data-start=\"4919\" data-end=\"5041\"\u003eQ4: Is it suitable for retrofit projects?\u003cbr data-start=\"4960\" data-end=\"4963\"\u003eA4: Yes, engineers frequently use it when expanding existing control cabinets.\u003c\/p\u003e\n\u003cp data-start=\"5043\" data-end=\"5173\"\u003eQ5: What environments support installation?\u003cbr data-start=\"5086\" data-end=\"5089\"\u003eA5: The module operates reliably in industrial temperature and vibration conditions.\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":43002652196931,"sku":"8440-2028","price":234.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/5810\/3107\/files\/8440-2028WoodwardDigitalIOExpansionBoard_1.jpg?v=1771983907","url":"https:\/\/www.plcdcspro.com\/products\/8440-2028-woodward-digital-i-o-expansion-board","provider":"PLC DCS Pro Ltd.","version":"1.0","type":"link"}