{"product_id":"allen-bradley-1746-no4i-current-output-module","title":"Allen-Bradley 1746-NO4I SLC 500 Analog Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-NO4I is a 4-channel analog output module designed for the SLC 500 programmable logic controller platform. This module provides four current-based output channels, specifically engineered for precision control of external industrial devices such as actuators, valves, and variable frequency drives. It is optimized for integration within the 1746 chassis and features high-resolution output capabilities to ensure accurate process regulation.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour (4) independent current output channels\u003c\/li\u003e\n\u003cli\u003e14-bit high-resolution output for precise control\u003c\/li\u003e\n\u003cli\u003eConfigurable output ranges: 0 to 20 mA or 4 to 20 mA\u003c\/li\u003e\n\u003cli\u003eGalvanic backplane isolation for signal integrity\u003c\/li\u003e\n\u003cli\u003eFast dynamic response times suitable for demanding control loops\u003c\/li\u003e\n\u003cli\u003eSupports external power switching for application flexibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater and Wastewater Treatment: Controls dosing pumps and valves based on flow or level setpoints.\u003c\/li\u003e\n\u003cli\u003eFood and Beverage Production: Manages pasteurization temperatures and conveyor speeds.\u003c\/li\u003e\n\u003cli\u003eChemical and Petrochemical: Provides high-precision PID control for reactor pressure and temperature.\u003c\/li\u003e\n\u003cli\u003eHVAC and Climate Control: Regulates dampers and cooling tower fan speeds.\u003c\/li\u003e\n\u003cli\u003eMetals and Mining: Controls hydraulic press pressure and positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1746-NO4I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Range\u003c\/td\u003e\n\u003ctd\u003e0 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull Scale Output\u003c\/td\u003e\n\u003ctd\u003e21 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverrange Capability\u003c\/td\u003e\n\u003ctd\u003e5% (0 to +21 mA - 1 LSB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd\u003e55 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e195 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Wiring Isolation\u003c\/td\u003e\n\u003ctd\u003eUp to 500V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 chassis is powered down before inserting or removing the module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eUse shielded cables, such as Belden #8761, to maintain signal integrity and minimize EMI interference.\u003c\/li\u003e\n\u003cli\u003eMaximum permitted wire size for terminal connections is #14 AWG.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the cable shield at the source to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate ventilation within the enclosure to keep ambient temperatures within the 0 to 60 degC operating range.\u003c\/li\u003e\n\u003cli\u003eHandle with care to prevent electrostatic discharge (ESD) damage to the module circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the Allen-Bradley 1746-NO4I?\u003c\/h3\u003e\u003cp\u003eThe 1746-NO4I is a legacy 4-channel analog current output module for the SLC 500 PLC platform, designed to convert digital data into analog current signals for process control.\u003c\/p\u003e\u003ch3\u003eWhat type of signals does it output?\u003c\/h3\u003e\u003cp\u003eIt provides four current-only output channels with a range of 0 to 20 mA.\u003c\/p\u003e\u003ch3\u003eWhat is the load resistance range?\u003c\/h3\u003e\u003cp\u003eThe output circuits are designed to handle a load resistance of 0 to 500 ohms.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50734598684924,"sku":"1746-NO4I","price":97.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_ad835bc7-ab55-42db-a8bb-e0ea328fa58d.jpg?v=1785317959","url":"https:\/\/www.electronicplc.com\/products\/allen-bradley-1746-no4i-current-output-module","provider":"Electronic PLC","version":"1.0","type":"link"}