{"product_id":"allen-bradley-1746-blm-blow-molding-module","title":"Allen-Bradley 1746-BLM Blow Molding Specialty Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-BLM is a high-performance, intelligent specialty module engineered for the plastics industry, specifically for use within the SLC 500 control system. It provides a tightly integrated solution for controlling blow molding machinery, including continuous extrusion, accumulator head, and reciprocating screw machines. The module functions as a co-processor, performing complex parison profile control and servo-loop tasks independently of the SLC 500 processor's scan time, ensuring high-speed, deterministic performance.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour independent axes of PID control, typically configured for parison and accumulator push-out applications.\u003c\/li\u003e\n\u003cli\u003eHigh-speed loop update time of 100 microseconds for precise motion control.\u003c\/li\u003e\n\u003cli\u003e256 points of profile resolution with interpolation for smooth wall thickness transitions.\u003c\/li\u003e\n\u003cli\u003eDynamic profile adjustment capabilities, allowing for part weight changes without altering the established parison profile shape.\u003c\/li\u003e\n\u003cli\u003eIntegrated 14-bit resolution analog I\/O and digital I\/O for comprehensive machine interface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is designed for demanding plastic processing environments, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eContinuous extrusion blow molding machines.\u003c\/li\u003e\n\u003cli\u003eAccumulator head blow molding systems.\u003c\/li\u003e\n\u003cli\u003eReciprocating screw blow molding machinery.\u003c\/li\u003e\n\u003cli\u003eApplications requiring high-speed, synchronized parison profile control.\u003c\/li\u003e\n\u003c\/ul\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\u003eBlow Molding Specialty Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxes\u003c\/td\u003e\n\u003ctd\u003e4 Independent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog I\/O\u003c\/td\u003e\n\u003ctd\u003e4 Inputs \/ 4 Outputs (14-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital I\/O\u003c\/td\u003e\n\u003ctd\u003e4 Inputs \/ 4 Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Update Time\u003c\/td\u003e\n\u003ctd\u003e100 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e110 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e85 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e500V DC\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\u003eEnsure the SLC 500 rack is powered down before inserting or removing the 1746-BLM module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eInstall the module in an appropriate slot within the SLC 500 chassis, ensuring it is fully seated and the retaining screws are tightened.\u003c\/li\u003e\n\u003cli\u003eFollow standard industrial grounding practices for the chassis and I\/O wiring to minimize EMI.\u003c\/li\u003e\n\u003cli\u003eUse shielded cables for analog signal connections to maintain signal integrity and prevent noise interference.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate ventilation within the control cabinet to ensure the module operates within its specified temperature range of 0 to 60 degC.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1746-BLM?\u003c\/h3\u003e\u003cp\u003eThe 1746-BLM acts as a dedicated co-processor for the SLC 500 system, offloading complex parison profile control and servo-loop tasks from the main CPU to provide high-speed, independent control of blow molding machinery.\u003c\/p\u003e\u003ch3\u003eCan I adjust the part weight while the machine is running?\u003c\/h3\u003e\u003cp\u003eYes, the module allows operators to dynamically adjust profile parameters, such as overall part weight, without the need to alter the established shape of the parison profile.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50730167894268,"sku":"1746-BLM","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_1f9a35e8-8c4e-40ad-b91c-89cdbb7e5cbe.jpg?v=1785211361","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1746-blm-blow-molding-module","provider":"Electronic PLC","version":"1.0","type":"link"}