{"product_id":"allen-bradley-1771-omd-digital-ac-output-module","title":"Allen-Bradley 1771-OMD Digital AC Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OMD\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-OMD\u003c\/strong\u003e Digital AC Output Module, operates as a dedicated hardware component for 220 VAC output switching and circuit protection within Allen-Bradley 1771 Universal I\/O Chassis platforms.\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\u003e1771-OMD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.69 lbs (0.77 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 1771 single-slot chassis module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e17.3 W maximum (3.7 W minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e184 to 250 VAC (47 to 63 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Current\u003c\/td\u003e\n\u003ctd\u003e2 A per output (8 A maximum per module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e700 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHigh-Density I\/O Isolation and Backplane Determinism\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OMD module uses channel-to-backplane circuit voltage isolation to isolate field-side 220 VAC transients from controller logic, protecting internal backplane components during inductive load switching. This isolation maintains backplane bus communication velocity and supports I\/O density scaling across deterministic remote I\/O and ControlNet network configurations in PLC-5 control systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the backplane current draw for the 1771-OMD module?\u003c\/p\u003e\n\u003cp\u003eA: The 1771-OMD module draws 700 mA at 5 VDC (+5%) from the 1771 chassis backplane power supply.\u003c\/p\u003e\n\u003cp\u003eQ: What are the maximum continuous output current ratings per channel and per module?\u003c\/p\u003e\n\u003cp\u003eA: Each individual channel supports up to 2 A continuous output current at 220 VAC, while the total aggregate current for all 16 channels on the module must not exceed 8 A.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect all AC field supply voltages and chassis backplane power before inserting or removing the module from the 1771 chassis slot.\u003c\/li\u003e\n\u003cli\u003eSecure the 1771-WH field wiring arm to the chassis, tightening terminal screws to a torque specification of 7 to 9 inch-pounds.\u003c\/li\u003e\n\u003cli\u003eVerify that each field load meets the minimum 10 mA operating current requirement at 220 VAC to ensure proper solid-state switching latching.\u003c\/li\u003e\n\u003cli\u003eSeparate high-voltage AC load wiring from low-voltage communication cabling to minimize inductive noise coupling and cross-talk.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48779948097726,"sku":"1771-OMD","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1771-IFM.png?v=1787541781","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1771-omd-digital-ac-output-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}