{"product_id":"allen-bradley-1746-qv-open-loop-velocity-control","title":"Allen-Bradley 1746-QV Open-Loop Velocity Control Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-QV is a specialized motion control module designed for the SLC 500 platform, specifically engineered for open-loop velocity control. This module is primarily utilized to manage the speed and positioning of hydraulic rams or pneumatic actuators. By integrating feedback from a Linear Displacement Transducer (LDT) and executing motion profiles directly from the SLC processor, the 1746-QV provides a cost-effective alternative to full closed-loop servo systems while maintaining smooth, profiled motion control.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSingle-axis motion control for hydraulic or pneumatic systems.\u003c\/li\u003e\n\u003cli\u003eSupports Linear Displacement Transducer (LDT) feedback inputs.\u003c\/li\u003e\n\u003cli\u003eProgrammable motion profiles with up to seven distinct voltage levels per profile.\u003c\/li\u003e\n\u003cli\u003eReduces mechanical wear and pressure spikes through controlled acceleration and deceleration.\u003c\/li\u003e\n\u003cli\u003eOptimized for integration within the SLC 500 chassis environment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThe 1746-QV is ideally suited for industrial machinery requiring controlled hydraulic movement, including die casting machines, industrial welders, and non-CNC hydraulic presses. It is designed for applications where precise speed ramping is required to improve cycle times and reduce equipment stress.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eOpen-Loop Velocity Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Axes\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e1 Linear Displacement Transducer (LDT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output\u003c\/td\u003e\n\u003ctd\u003e-10 to +10V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Time\u003c\/td\u003e\n\u003ctd\u003e2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e215 mA\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\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC (-40 to 185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% (non-condensing)\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 1746-QV module.\u003c\/li\u003e\n\u003cli\u003eInstall the module in an appropriate slot within the SLC 500 rack, ensuring the backplane connector is fully seated.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for LDT feedback connections to minimize EMI interference.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation within the control cabinet to ensure operating temperatures remain within the 0 to 60 degC range.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD (Electrostatic Discharge) precautions when handling the module to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat type of feedback does the 1746-QV support?\u003c\/h3\u003e\u003cp\u003eThe module is designed to accept input from a Linear Displacement Transducer (LDT) to monitor the position of the actuator.\u003c\/p\u003e\u003ch3\u003eCan this module be used for closed-loop control?\u003c\/h3\u003e\u003cp\u003eNo, the 1746-QV is specifically designed for open-loop velocity control. It is intended for applications that require profiled motion without the complexity of full closed-loop servo synchronization.\u003c\/p\u003e\u003ch3\u003eHow many voltage levels can be configured?\u003c\/h3\u003e\u003cp\u003eThe module supports the configuration of up to seven (7) different voltage levels for each motion profile, allowing for granular control over acceleration and deceleration phases.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50740076151036,"sku":"1746-QV","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_d5692ffe-700b-4540-be9a-87894d070838.jpg?v=1785400053","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1746-qv-open-loop-velocity-control","provider":"Electronic PLC","version":"1.0","type":"link"}