{"product_id":"1771-ia2-8-channel-ac-dc-input-module-allen-bradley-plc5","title":"1771-IA2 8-Channel AC\/DC Input Module Allen-Bradley PLC5","description":"\u003cmain\u003e\n\u003ch2\u003e\u003cstrong\u003eAllen-Bradley \u003cstrong\u003e1771-IA2\u003c\/strong\u003e 120V AC\/DC Digital Input Module – PLC5 Series\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley | \u003cstrong\u003eCatalog No.:\u003c\/strong\u003e \u003cstrong style=\"color: #c62828;\"\u003e1771-IA2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e 8-channel digital AC\/DC input module for PLC5 systems. Intended for use with \u003cstrong style=\"color: #c62828;\"\u003e1771-IA2\u003c\/strong\u003e compatible AC\/DC proximity switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e Operates from 87-138V AC and 97-138V DC. Nominal 120V AC\/DC category ensures broad compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Delays:\u003c\/strong\u003e AC On\/Off delay typically 24ms (±10ms). DC On delay 10ms (±4ms); DC Off delay 20ms (±9ms). Built-in input filtering reduces electrical noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-State Current:\u003c\/strong\u003e Maximum 2.8mA AC or DC ensures reliable off-state detection without false triggering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Load:\u003c\/strong\u003e Draws only 75mA from the 1771 chassis backplane. Power dissipation max 10.7W (36.5 BTU\/hr).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Optoelectrical isolation protects logic circuits from electrical transients and voltage spikes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Dimensions:\u003c\/strong\u003e 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 mm). Keying bands between pins 10-12 (upper) and 4-6 (lower) for proper slot alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Addressing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounts in any single slot of a 1771 I\/O chassis containing a PLC5 processor. Supports ½, 1, and 2-slot I\/O addressing modes.\u003c\/li\u003e\n\u003cli\u003eUse the included \u003cstrong style=\"color: #2e7d32;\"\u003e1771-WA wiring arm\u003c\/strong\u003e for field wiring termination. This removable arm preserves existing wiring during module replacement.\u003c\/li\u003e\n\u003cli\u003eEight orange status indicators on the front panel provide immediate visual feedback for each input channel's on\/off state.\u003c\/li\u003e\n\u003cli\u003eSeries A module with straightforward configuration via PLC programming software.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What makes the \u003cstrong\u003e1771-IA2\u003c\/strong\u003e different from the standard 1771-IA?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e1771-IA2\u003c\/strong\u003e is specifically intended for use with AC\/DC proximity switches, though it functions identically to the 1771-IA for general-purpose 120V AC\/DC inputs. Both share the same electrical specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can I use this module with 24V DC sensors?\u003c\/strong\u003e\u003cbr\u003eA: No. The \u003cstrong\u003e1771-IA2\u003c\/strong\u003e requires 97-138V DC minimum. It does not operate at 24V DC levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What does the 2.8mA off-state current specification mean?\u003c\/strong\u003e\u003cbr\u003eA: It means the module tolerates up to 2.8mA leakage current without registering an ON state. This prevents false triggering from leaky proximity switches or long cable capacitance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How do I replace the module without rewiring?\u003c\/strong\u003e\u003cbr\u003eA: Simply unplug the \u003cstrong\u003e1771-WA\u003c\/strong\u003e wiring arm from the old \u003cstrong\u003e1771-IA2\u003c\/strong\u003e, remove the module, install the new one, and reattach the arm. Your field wiring remains untouched.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the typical response time for proximity switches?\u003c\/strong\u003e\u003cbr\u003eA: AC proximity switches see a 24ms (±10ms) on\/off delay. DC switches see 10ms (±4ms) on delay and 20ms (±9ms) off delay due to the module's input filtering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Do you ship internationally, and what carriers do you use?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we ship worldwide via FedEx, UPS, or DHL. We dispatch within 5 days of order confirmation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 2em;\"\u003e\u003cstrong\u003eContact Information Inquiries:\u003c\/strong\u003e \u003ca style=\"color: #0d47a1;\" href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e | \u003ca style=\"color: #0d47a1;\" rel=\"noopener\" href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e (WhatsApp)\u003cbr\u003ePartner: \u003ca style=\"color: #0d47a1;\" rel=\"noopener\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/main\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45760581107873,"sku":"1771-IA2","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1771-IA2.jpg?v=1772011907","url":"https:\/\/www.autonexcontrol.com\/th\/products\/1771-ia2-8-channel-ac-dc-input-module-allen-bradley-plc5","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}