The response speed of servo driver is the smallest, and the calculation amount in torque mode is the fastest. The operation amount of position mode is the largest, and the response of the driver to the control signal is the slowest.
When there is a high demand for dynamic performance in sports, it is necessary to adjust the motor in real time.
The controller itself runs very slowly, so the position mode control is adopted. The running speed of the controller is relatively fast, so the positioning ring can be moved from the driver to the controller by speed, which reduces the workload of the driver and improves the efficiency. A better upper controller can also move the speed loop away from the driver through torque control.
Extended data
1. Features of servo motor: When the signal voltage is zero, there is no rotation, and the rotation speed decreases with the increase of torque.
Servo motor can make the control speed and position accuracy very accurate, and can convert voltage signal into torque and speed to drive the controlled object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. It has the characteristics of small electromechanical time constant, high linearity and high starting voltage, and can convert the received electrical signal into angular displacement or angular velocity and output it on the motor shaft.
2. Servo motors are divided into DC and AC servo motors.
Baidu encyclopedia-servo motor
Baidu Encyclopedia-Programmable Logic Controller