{"product_id":"allen-bradley-1791-ndv-analog-voltage-i-o-module-4-channel-input-block","title":"Allen-Bradley 1791-NDV Analog Voltage I\/O Module | 4-Channel Input Block","description":"\u003ch2\u003eAllen-Bradley 1791-NDV: DC Voltage I\/O Module\u003c\/h2\u003e\n\n\u003cp\u003eIntroducing the \u003cb\u003eAllen-Bradley 1791-NDV\u003c\/b\u003e, a key part for your control panel. This module handles 4 analog inputs and 2 voltage outputs. It is powered by 24V DC for easy integration. Built tough for factory environments with wide temperature tolerance. The \u003cb style=\"color: #0275d8;\"\u003e1791-NDV\u003c\/b\u003e delivers precise data for your PLC system. It's the reliable link between your sensors and controllers.\u003c\/p\u003e\n\n\u003ch3\u003eQuick Overview \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMultiple Inputs:\u003c\/b\u003e 4 channels to connect various sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage Outputs:\u003c\/b\u003e 2 stable voltage outputs for direct control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Precision:\u003c\/b\u003e 0.1% accuracy and 14-bit resolution for clear data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRobust Design:\u003c\/b\u003e Works in hot conditions from 0°C to 60°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStrong Safety:\u003c\/b\u003e Indefinite short-circuit protection on outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimple Power:\u003c\/b\u003e Uses common 24V DC industrial power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eBrand \u0026amp; Model:\u003c\/b\u003e Allen-Bradley \u003cb style=\"color: #0275d8;\"\u003e1791-NDV\u003c\/b\u003e\u003cbr\u003e\n\u003cb\u003eProduct Line:\u003c\/b\u003e 1791 Block I\/O\u003cbr\u003e\n\u003cb\u003eModule Type:\u003c\/b\u003e DC Analog Voltage I\/O\u003cbr\u003e\n\u003cb\u003eTotal Channels:\u003c\/b\u003e 6 (4 Input, 2 Output)\u003cbr\u003e\n\u003cb\u003eInput Channels:\u003c\/b\u003e 4 Analog (Configurable)\u003cbr\u003e\n\u003cb\u003eOutput Channels:\u003c\/b\u003e 2 Voltage Outputs\u003cbr\u003e\n\u003cb\u003eInput Resolution:\u003c\/b\u003e 14-bit full scale\u003cbr\u003e\n\u003cb\u003eOutput Impedance:\u003c\/b\u003e \u0026lt; 1 Ohm\u003cbr\u003e\n\u003cb\u003eInput Impedance:\u003c\/b\u003e 10 MΩ (Voltage), 250 Ω (Current)\u003cbr\u003e\n\u003cb\u003eUpdate Rate:\u003c\/b\u003e 108 ms per channel\u003cbr\u003e\n\u003cb\u003eAbsolute Accuracy:\u003c\/b\u003e ±0.1% @ 25°C\u003cbr\u003e\n\u003cb\u003eLinearity:\u003c\/b\u003e 0.05% @ 25°C\u003cbr\u003e\n\u003cb\u003eInput Bandwidth:\u003c\/b\u003e 5 Hz\u003cbr\u003e\n\u003cb\u003eShort-Circuit Protection:\u003c\/b\u003e Indefinite (Outputs)\u003cbr\u003e\n\u003cb\u003eOvervoltage Protection:\u003c\/b\u003e 140V AC\u003cbr\u003e\n\u003cb\u003ePower Supply:\u003c\/b\u003e 24V DC (19.2 - 30V DC Range)\u003cbr\u003e\n\u003cb\u003eCurrent Draw:\u003c\/b\u003e 600 mA max.\u003cbr\u003e\n\u003cb\u003ePower Dissipation:\u003c\/b\u003e 11.52 Watts max.\u003cbr\u003e\n\u003cb\u003eOperating Temperature:\u003c\/b\u003e \u003cb style=\"color: #d9534f;\"\u003e0°C to 60°C\u003c\/b\u003e\u003cbr\u003e\n\u003cb\u003eStorage Temperature:\u003c\/b\u003e -40°C to 85°C\u003cbr\u003e\n\u003cb\u003eRelative Humidity:\u003c\/b\u003e 5 to 95% (non-condensing)\u003cbr\u003e\n\u003cb\u003eDimensions (H x W x D):\u003c\/b\u003e 6.95\" x 2.7\" x 3.85\"\u003cbr\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1.19 lbs (0.54 kg)\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Made Easy\u003c\/h3\u003e\n\u003cp\u003eMount the module securely on a DIN rail. Ensure your 24V DC power supply is within the 19.2-30V range. Connect your sensor wires to the input terminals. Connect your actuator wires to the voltage output terminals. Keep wiring tidy and avoid running signal wires next to power cables. Configure the module's parameters through your PLC programming software.\u003c\/p\u003e\n\n\u003ch3\u003ePackage \u0026amp; Warranty Details\u003c\/h3\u003e\n\u003cp\u003eYou will receive:\u003cbr\u003e\n• 1 x Allen-Bradley 1791-NDV Analog I\/O Module\u003cbr\u003e\n• Installation guide and datasheet\u003cbr\u003e\n(Power and communication cables are not included)\u003c\/p\u003e\n\u003cp\u003eWe offer a full \u003cb style=\"color: #5cb85c;\"\u003e12-month warranty\u003c\/b\u003e from the date of purchase. This covers any issues with performance or materials.\u003c\/p\u003e\n\n\u003ch3\u003eFast Shipping Services\u003c\/h3\u003e\n\u003cp\u003eWe deliver quickly using reliable global carriers: \u003cb\u003eFedEx, UPS, and DHL\u003c\/b\u003e. Your order will include complete tracking details for peace of mind.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat types of signals can the 4 inputs read?\u003c\/h4\u003e\n\u003cp\u003eThe inputs can be configured for standard voltage signals (like 0-10V) or current signals (like 4-20mA). This makes them suitable for temperature sensors, pressure transmitters, and level gauges.\u003c\/p\u003e\n\n\u003ch4\u003eCan this module output a 0-10V signal to control a variable speed drive?\u003c\/h4\u003e\n\u003cp\u003eYes. The two outputs are voltage outputs. You can typically configure them in your PLC program to send a 0-10V signal, which is a common command signal for many motor drives.\u003c\/p\u003e\n\n\u003ch4\u003eThe operating temperature goes up to 60°C. Is a cooling fan required?\u003c\/h4\u003e\n\u003cp\u003eNot usually inside a control panel. The module's design handles this heat. However, ensure your panel has general ventilation and is not placed next to a major heat source like a furnace.\u003c\/p\u003e\n\n\u003ch4\u003eWhat does \"indefinite short-circuit protection\" mean in practice?\u003c\/h4\u003e\n\u003cp\u003eIf the two output wires touch accidentally, the module will instantly limit the current to a safe level. It will not be damaged and will return to normal operation once the short is removed. You don't need to replace a fuse.\u003c\/p\u003e\n\n\u003ch4\u003eHow do I know if my PLC-5 is compatible with this block I\/O module?\u003c\/h4\u003e\n\u003cp\u003eCheck that your PLC-5 processor supports Block Transfer instructions. Most do. You will also need a 1771 I\/O chassis with an adapter to connect the 1791 block I\/O network.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e© 2025 Ubest Automation Limited. All rights reserved.\u003cbr\u003e\nOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003e\nContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51524129259802,"sku":"1791-NDV","price":267.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1791-NDV.jpg?v=1791450189","url":"https:\/\/www.ubestplc.com\/products\/allen-bradley-1791-ndv-analog-voltage-i-o-module-4-channel-input-block","provider":"Ubest Automation Limited","version":"1.0","type":"link"}