{"product_id":"allen-bradley-1756-ia8d-diagnostic-ac-input-module","title":"Allen-Bradley 1756-IA8D ControlLogix Diagnostic AC Input Module","description":"\u003cp\u003eThe Allen-Bradley 1756-IA8D is a diagnostic AC input module designed for the ControlLogix platform. This module provides eight diagnostic inputs, offering enhanced monitoring capabilities for 120V AC signals in industrial automation environments. By incorporating diagnostic features, it allows for improved system reliability and faster troubleshooting by identifying input state changes and fault conditions.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEight diagnostic AC input channels for precise signal monitoring.\u003c\/li\u003e\n\u003cli\u003eSupports a nominal input voltage of 120V AC.\u003c\/li\u003e\n\u003cli\u003eProgrammable input delay times of 9 or 18 milliseconds to accommodate various signal noise environments.\u003c\/li\u003e\n\u003cli\u003eIntegrated diagnostic functionality to assist in system maintenance and downtime reduction.\u003c\/li\u003e\n\u003cli\u003eCompatible with the standard 1756 ControlLogix chassis architecture.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1756-IA8D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDiagnostic Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e79-132V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Delay Time\u003c\/td\u003e\n\u003ctd\u003eProgrammable (9 or 18 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin. Operating Current\u003c\/td\u003e\n\u003ctd\u003e5 mA at 79V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Operating Current\u003c\/td\u003e\n\u003ctd\u003e16 mA at 132V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Input Current\u003c\/td\u003e\n\u003ctd\u003e2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is powered down before inserting or removing the 1756-IA8D module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the chassis slot and secured with the top and bottom latches.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for input signals to minimize electromagnetic interference (EMI) in high-noise industrial environments.\u003c\/li\u003e\n\u003cli\u003eAdhere to standard ESD (Electrostatic Discharge) practices when handling the module to protect internal circuitry.\u003c\/li\u003e\n\u003cli\u003eEnsure that the input voltage levels remain within the specified 79-132V AC range to maintain optimal diagnostic performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary benefit of the 1756-IA8D diagnostic module?\u003c\/strong\u003e\u003cbr\u003eUnlike standard input modules, the diagnostic version provides additional status information regarding the health and state of the input signals, which helps in detecting field wiring faults or signal inconsistencies more rapidly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I program the input delay time on this module?\u003c\/strong\u003e\u003cbr\u003eYes, the input delay time is user-programmable to either 9 or 18 milliseconds, allowing you to tune the module's response to filter out transient noise on the AC input lines.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44012838944858,"sku":"1756-IA8D","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_4e3a544c-2dea-40b1-a3b0-be9708948fa4.jpg?v=1788585578","url":"https:\/\/www.spareoil.com\/ar\/products\/allen-bradley-1756-ia8d-diagnostic-ac-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}