{"product_id":"allen-bradley-1746sc-ino4i-individually-isolated-analog-output-module","title":"Allen-Bradley 1746SC-INO4I Individually Isolated Analog Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe 1746SC-INO4I is a high-performance, four-channel analog output module engineered by Spectrum Controls for the Allen-Bradley SLC 500 platform. This module is specifically designed for current-only applications (0-20 mA or 4-20 mA) where electrical noise, ground loops, or differing potentials between field devices could compromise signal accuracy. The 'I' designation confirms individual channel-to-channel isolation, ensuring that a fault or noise on one loop does not propagate to other outputs or the backplane.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Channel Isolation:\u003c\/strong\u003e Provides 500V AC continuous isolation between each channel and the backplane, preventing ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Precision:\u003c\/strong\u003e Features 16-bit resolution for accurate control of VFDs, proportional valves, and other current-driven actuators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Output:\u003c\/strong\u003e Supports 0-20 mA, 4-20 mA, and 0-21 mA sourcing ranges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Response:\u003c\/strong\u003e 1 ms step response time to 95% of full scale.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Powering:\u003c\/strong\u003e Supports external 24V DC power to minimize backplane current draw.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is ideal for industrial control environments requiring high signal integrity, such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVariable Frequency Drive (VFD) speed control.\u003c\/li\u003e\n\u003cli\u003eProportional valve positioning.\u003c\/li\u003e\n\u003cli\u003eProcess control loops where electrical isolation is required to prevent cross-channel interference.\u003c\/li\u003e\n\u003cli\u003eSystems with high electromagnetic interference (EMI) or common-mode voltage challenges.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1746SC-INO4I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSpectrum Controls (for SLC 500)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eCurrent Only (Sourcing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Ranges\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA, 0-21 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e1 ms (to 95% of full scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e120 mA @ 5V DC \/ 250 mA @ 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e500V AC continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.0 Watts (Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Precautions:\u003c\/strong\u003e Always handle the module by the edges and use a grounded wrist strap to prevent electrostatic discharge damage to internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Down:\u003c\/strong\u003e Ensure the SLC 500 chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Use shielded twisted-pair cable for all analog signals to minimize noise. Ground the shield at one end only, typically at the signal source or the module common, depending on system requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Ensure that external power supplies used for the 24V DC loop power are properly rated and isolated to maintain the integrity of the channel isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Maintain adequate clearance around the SLC 500 chassis to ensure proper airflow and heat dissipation within the specified operating temperature range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eDoes this module require external power?\u003c\/h3\u003e\u003cp\u003eThe 1746SC-INO4I can be powered via the backplane, but it supports external 24V DC power to reduce the load on the SLC 500 chassis power supply.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with standard SLC 500 racks?\u003c\/h3\u003e\u003cp\u003eYes, it is designed as a drop-in replacement or addition for the Allen-Bradley SLC 500 I\/O platform, utilizing the standard 1746 backplane interface.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50647335534844,"sku":"1746SC-INO4I","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_e325972a-a85f-412f-843d-ea44c79d2c85.jpg?v=1785058857","url":"https:\/\/www.electronicplc.com\/es\/products\/allen-bradley-1746sc-ino4i-individually-isolated-analog-output-module","provider":"Electronic PLC","version":"1.0","type":"link"}