{"product_id":"1764-24awa-allen-bradley-micrologix-1500-24-point-base-unit","title":"Unité de base MicroLogix 1500 24 points Allen-Bradley 1764-24AWA","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA (176424AWA)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the high-density foundational base for the Allen-Bradley MicroLogix 1500 controller system. This 120\/240 VAC powered unit features 24 integrated I\/O points, specifically designed to bridge the gap between compact micro-PLCs and larger modular systems. Ideal for distributed control in wastewater management, pharmaceutical secondary packaging, and precision assembly lines, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides the essential power supply and I\/O interface required to support a 1764-LRP or 1764-LSP processor. By decoupling the processor from the I\/O base, this architecture allows for rapid maintenance and upgrades with zero rewiring, significantly lowering the Total Cost of Ownership (TCO) and reducing critical system downtime.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a split-architecture design where the base unit contains the power supply, input\/output circuitry, and expansion ports. It is equipped with 12 isolated 120 VAC inputs and 12 relay outputs, making it natively compatible with high-voltage field devices without requiring interposing relays. The unit features an integrated expansion port that supports up to 16 Compact I\/O (1769 series) modules, allowing for massive scalability. The internal power supply is engineered to handle industrial-grade voltage fluctuations, while the relay outputs are rated for heavy-duty cycling, ensuring long-term mechanical reliability in high-vibration or high-cycle environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1764-24AWA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA \/ Singapore\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLine Power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85-265 VAC (47-63 Hz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNumber of Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 Points (120 VAC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNumber of Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 Points (Relay)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eExpansion Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 16 1769 Compact I\/O Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 55 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStorage Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to 85 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e138 x 168 x 87 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.82 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan I operate the 1764-24AWA base unit without a processor module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a base unit only. It requires a 1764-LSP or 1764-LRP processor module plugged into the front interface to function as a complete programmable logic controller.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum output current rating for the relay contacts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe relay outputs on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare typically rated for a continuous current of 2.0 A per point, with a maximum controlled load of 1440 VA for AC. Always verify your specific inductive load requirements against the NEMA ICS ratings provided in the manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it possible to mix AC and DC expansion modules with this AC base?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. While the base unit uses 120 VAC inputs, you can add 1769 series Compact I\/O expansion modules (Digital DC, Analog, or Thermocouple) to the right side of the unit to accommodate diverse field signal requirements.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProcessor Hot-Plugging Warning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNever attempt to install or remove the 1764-LSP\/LRP processor module while power is applied to the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1764-24AWA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebase. This can cause electrical arcing across the backplane pins, potentially corrupting the processor memory or causing permanent hardware failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExpansion Bus Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen expanding the system with 1769 Compact I\/O modules, ensure that a 1769-ECR or 1769-ECL end cap is securely installed at the end of the I\/O bank. Without the end cap, the I\/O bus will remain an open circuit, and the processor will flag a major non-recoverable fault.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInductive Load Suppression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGiven that this base unit utilizes relay outputs, switching inductive loads (such as motor contactors or solenoids) generates significant Back-EMF. It is mandatory to install MOV (Metal Oxide Varistors) or RC snubbers across AC loads to prevent electromagnetic interference from resetting the internal processor logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695183917419,"sku":"Allen Bradley 1764-24AWA","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1764-24awa-micrologix-1500-base-unit-imukxjybyqv_3cbde214-b442-4ab1-9bb5-ec02af3178b7.jpg?v=1766114395","url":"https:\/\/www.plcprotech.com\/fr\/products\/1764-24awa-allen-bradley-micrologix-1500-24-point-base-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}