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Servo drive system

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Servo drive system is a kind of automatic control system, such as numerical control machine tool, etc., which is based on the mechanical position or angle as the control object.

The servo system of driving motor requires fast response speed, accurate positioning, big inertia, inertia (rotating servo motor in electromechanical system in order to and screw mechanical components are directly connected, in order to get high response speed, small inertia servo motor has a special motor. But the overload capacity of this kind of motor is low, when it is used in the feed servo system, it is necessary to speed up the device. Moment of inertia reflects the acceleration characteristics of the system, in the choice of servo motor, the moment of inertia of the system can not be more than 3 times the inertia of the motor. Larger and so on, this kind of special motor is called servo motor. Of course, its basic working principle and ordinary AC and DC motor is no different. The special driving unit of this kind of motor is called the servo drive unit, sometimes referred to as the servo, and the inside of the motor is the current, speed and / or position closed loop.