{"product_id":"delta-asd-a0421-ab-ac-servo-drive","title":"DELTA ASD-A0421-AB Variateur servo AC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eASD-A0421-AB (ASDA0421AB)\u003c\/strong\u003e is a precision AC servo drive designed for motion control systems requiring high accuracy and reliable response. With a power rating of 400 W, this drive is tailored for smaller-scale industrial machinery, such as automated component insertion equipment, precision positioning tables, and light-duty robotic arms. It utilizes advanced Space Vector Pulse Width Modulation (SVPWM) for efficient motor control, ensuring smooth operation and high-performance torque delivery. Its compact design and natural air circulation cooling make it an ideal choice for space-constrained control cabinets where forced-air ventilation is not feasible.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe ASD-A0421-AB features an integrated dynamic braking system, which is crucial for managing inertial loads during rapid deceleration, effectively preventing over-voltage faults. The drive supports a wide range of pulse input types—including Pulse+Direction and CCW+CW—providing flexibility for integration with various PLC platforms or dedicated motion controllers. Its high-speed pulse processing (up to 500 Kpps via Line Driver) ensures precise command following, while the built-in low-pass and P-curve filters contribute to a smooth acceleration profile, significantly reducing mechanical resonance in high-precision motion systems.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eASD-A0421-AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDelta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e400 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eNatural Air Circulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncoder Feedback\u003c\/td\u003e\n\u003ctd\u003e10000 ppr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Pulse Frequency\u003c\/td\u003e\n\u003ctd\u003e500 Kpps (Line Driver)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Brake\u003c\/td\u003e\n\u003ctd\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Method\u003c\/td\u003e\n\u003ctd\u003eSVPWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e10k Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does this drive use natural air circulation instead of a fan?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ASD-A0421-AB is engineered with highly efficient internal power stages, resulting in low heat generation. This design reduces maintenance by eliminating the need to clean or replace cooling fans, which are common failure points in dusty industrial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I choose between Line Driver and Open Collector pulse inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLine Driver is recommended for systems where the distance between the controller and the drive is significant (greater than 1–2 meters) to minimize electromagnetic interference (EMI). Open Collector is suitable for short, low-speed connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of using P-curve filtering?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eP-curve (or S-curve) filtering smooths the jerk at the start and end of a motion profile. This prevents the \"kick\" associated with sudden start\/stop acceleration, which protects your mechanical transmission (gearboxes, couplings, and lead screws) from high-impact wear.\u003c\/p\u003e\n\u003ch3\u003eInstallation and Operational Best Practices\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Mounting:\u003c\/strong\u003e Although the unit uses natural convection, do not mount it horizontally or in a confined, sealed box without adequate heat-dissipating volume. Ensure a minimum of 50 mm of vertical space above and below the unit to allow heat to rise and exit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Shielding:\u003c\/strong\u003e To maintain the integrity of the 500 Kpps pulse signal, route control cabling in a dedicated wireway isolated from high-voltage AC power lines. Use twisted-pair, shielded cables and bond the shield to the common ground at the drive side only to avoid ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Input Calibration:\u003c\/strong\u003e The drive’s ±10 VDC analog input has a 10k Ohm input resistance. When using an external speed command, ensure your PLC or controller output can drive this load impedance accurately to maintain linear speed control over the full range.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Delta Electronics","offers":[{"title":"Default Title","offer_id":53102207500651,"sku":"ASD-A0421-AB","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/asd-a0421-ab-aeun3y0jz5n.png?v=1776137234","url":"https:\/\/www.plcprotech.com\/fr\/products\/delta-asd-a0421-ab-ac-servo-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}