{"product_id":"9905-971-woodward-discrete-input-module","title":"9905-971 | Woodward | Discrete Input Module","description":"\u003ch3\u003e\n\u003cspan\u003eProduct \u003c\/span\u003e\u003cspan\u003eDescription\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eWoodward 9905-971\u003c\/strong\u003e is a Discrete Input Module from the Woodward 9900 Series, designed for turbine and industrial control systems. It provides 24 discrete input channels with fast update times and precise time‑stamping, enabling accurate monitoring of digital signals such as switches, relays, and alarms. Built for reliability, the module incorporates latent fault detection and flexible contact configurations, ensuring safe and efficient operation in demanding environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cspan\u003eKey \u003c\/span\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Woodward\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 9905-971\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Discrete Input Module\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e 24 discrete inputs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUpdate Time:\u003c\/strong\u003e 5 ms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTime Stamping:\u003c\/strong\u003e 1 ms resolution for event logging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 24 VDC per discrete input\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRelay Contact Options:\u003c\/strong\u003e Supports normally open (NO) or normally closed (NC) contacts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLatent Fault Detection:\u003c\/strong\u003e Built‑in diagnostics for each relay output\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInserted into card guides in the chassis\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSecured with top and bottom screws\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEquipped with extraction handles for safe removal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e United States (USA)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In Stock\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan\u003eFunctional \u003c\/span\u003e\u003cspan\u003eRole\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProvides digital signal monitoring for turbine and process control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDetects and logs discrete events with 1 ms resolution\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsures fault‑tolerant operation with latent fault detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports flexible contact wetting voltage options (internal 24 VDC or external 18–32 VDC \/ 100–150 VDC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFully isolated inputs for safe integration with external power sources\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan\u003eApplication \u003c\/span\u003e\u003cspan\u003eScenarios\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTurbine control systems\u003c\/strong\u003e requiring precise digital input monitoring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIndustrial automation\u003c\/strong\u003e for alarms, interlocks, and relay feedback\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProcess safety systems\u003c\/strong\u003e where event logging and fault detection are critical\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePower generation plants\u003c\/strong\u003e needing reliable discrete input acquisition\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: How many discrete inputs does the 9905-971 support?\u003c\/strong\u003e A: It supports 24 discrete input channels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: What is the time‑stamping resolution?\u003c\/strong\u003e A: Events are logged with 1 ms resolution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Can external power sources be used for contact wetting?\u003c\/strong\u003e A: Yes, external 18–32 VDC or 100–150 VDC sources can be used, with proper common connections.\u003c\/span\u003e\u003c\/p\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":46377607168190,"sku":"9905-971","price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/9905-969_3.png?v=1770276516","url":"https:\/\/www.autooiltech.com\/products\/9905-971-woodward-discrete-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}