Page 136 - Demo

V012024 • © 2024 Portescap. Specifications subject to change without notice.Get the simple motion control and precision of a stepper motor with the speed and acceleration of a brushless DC motor. The unique thin disc magnet enables finer step resolutions compared to a conventional permanent magnet stepper, while the low inertia and a shorter magnetic circuit with lower iron losses deliver significantly higher acceleration and maximum speed. These motors can be driven as a servo motor in applications requiring extremely fast incremental motion.Disc Magnet MotorsSimple Speed, Power and PrecisionFeature Details Application AdvantagesStepper motor design • No need for encoder feedback • Simple open-loop positioning that can be digitally controlledMicrostepping capability• Axial magnetization with high number of poles• Much smaller step angles compared to conventional stepper• Nearly servo-like accuracy in a simpler positioning systemThin multipolar rare earth disc magnet • Low rotor inertia• High acceleration• High start and stop frequencies• High power rate Simple magnetic circuit• No coupling between phases• Sinusoidal torque function• Low detent torque• Superior angular resolution in microstep modeOptimally dimensioned iron circuit • Torque constant linear up to two times nominal current• High peak torques• Capability to boost currentChoice of sintered bronze bearings or ball bearings• Long bearing and lubrication life• Choice of bearing performance characteristics• Increased service life and reliability for any application136