Different control accuracy: servo motors provide feedback information through rotary encoders to achieve higher control accuracy, while stepper motors have relatively lower control accuracy.
Different low frequency features: servo motors exhibit stability and almost no vibration during low-speed operation, while stepper motors may experience vibration at low speeds.
Different overload capabilities: Stepper motors have limited overload capabilities and are prone to losing step when the load exceeds their rated capacity, while servo motors have strong overload capabilities and can handle most load situations.
Different operational performance: The stepper motor adopts open-loop control without position feedback mechanism, while the AC servo motor adopts closed-loop control, which can achieve more accurate position and speed control.
Different speed response performance: AC servo motors have good acceleration performance and can quickly respond to changing speed commands, while stepper motors have relatively low acceleration performance.