{"product_id":"allen-bradley-1746-qv-open-loop-velocity-control","title":"Allen-Bradley 1746-QV SLC 500 Open-Loop Velocity Control Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-QV is a single-axis motion control module engineered for the SLC 500 controller series. This module provides open-loop velocity control, specifically optimized for managing hydraulic and pneumatic actuators. By integrating feedback from a Linear Displacement Transducer (LDT) with motion profiles defined within the SLC processor, the 1746-QV enables smooth, repeatable motion sequences without the complexity of a full closed-loop servo system.\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 integration with Linear Displacement Transducers (LDT) for precise position feedback.\u003c\/li\u003e\n\u003cli\u003eProgrammable motion profiles allowing up to seven distinct voltage levels for acceleration and deceleration.\u003c\/li\u003e\n\u003cli\u003eMitigates mechanical stress and hydraulic pressure spikes through controlled ramp-up and ramp-down sequences.\u003c\/li\u003e\n\u003cli\u003eOptimized for integration within the standard SLC 500 I\/O chassis architecture.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is frequently utilized in industrial machinery where controlled, profiled motion is required to improve cycle efficiency and hardware longevity. Common applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHydraulic presses (non-CNC)\u003c\/li\u003e\n\u003cli\u003eDie casting equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial welding machinery\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose linear actuator speed control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\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 x 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 backplane is powered down before inserting or removing the 1746-QV module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eThe module should be installed in a clean, dry environment within the specified temperature range.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for LDT connections to minimize electromagnetic interference (EMI) and ensure signal integrity.\u003c\/li\u003e\n\u003cli\u003eMaintain proper grounding practices for the chassis to ensure robust operation.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe procedures to protect sensitive internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can the 1746-QV be used for closed-loop servo applications?\u003c\/strong\u003e\u003cbr\u003eA: No, the 1746-QV is specifically designed for open-loop velocity control applications. It is intended for systems where motion profiles are managed via LDT feedback rather than high-speed closed-loop servo synchronization.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the primary function of the seven voltage levels?\u003c\/strong\u003e\u003cbr\u003eA: The seven programmable voltage levels allow the user to define discrete acceleration and deceleration segments within a motion profile, facilitating smoother transitions and reducing mechanical wear on the hydraulic or pneumatic components.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48826163429566,"sku":"1746-QV","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_36d54e87-7166-448a-928e-f093160fee6d.jpg?v=1788283554","url":"https:\/\/www.autooiltech.com\/ar\/products\/allen-bradley-1746-qv-open-loop-velocity-control","provider":"AutoOilTech Limited","version":"1.0","type":"link"}