Servo motor
In servo motors, current response, speed response and position response are three important performance indicators, which represent the responsiveness of the servo motor in different aspects. These three metrics are described and compared in detail below.
1. Current response.
Current response refers to the response speed and stability of the output current of the servo motor after the input current signal. The current response of a servo motor depends on parameters such as the winding impedance of the motor, the inductance, and the gain of the controller. In general, the faster the current response, the better the dynamics of the servo motor, the faster it is able to reach the required output current, and thus the more accurate the speed and position.
Second, speed response.
Speed response refers to the response speed and stability of the output speed of the servo motor after the input speed signal. The speed response of a servo motor depends on parameters such as the inertia and damping of the motor as well as the gain of the controller. Generally speaking, the faster the speed response, the greater the speed regulation ability of the servo motor and the shorter the output speed can be achieved.
3. Position response.
Position response refers to the response speed and stability of the output position of the servo motor after the input position signal. The position response of a servo motor depends on parameters such as the encoder accuracy of the motor, the algorithm of the controller, and the gain of the controller. In general, the faster the position response, the higher the positioning accuracy of the servo motor and the shorter the time it is able to reach the desired position.
In summary, current response, speed response and position response are three important performance indicators in servo motors, which respectively represent the responsiveness of servo motors in different aspects. In practical applications, servo motors with appropriate performance indicators should be selected according to specific needs to meet the requirements of the system.