Servo driver, also known as "servo controller" and "servo amplifier", is a controller used to control the servo motor. Its function is similar to that of a frequency converter acting on an ordinary AC motor. It is a part of the servo system and is mainly used in high-precision positioning systems. Generally, the servo motor is controlled by three methods of position, speed and torque to achieve high-precision positioning of the transmission system. It is currently a high-end product of transmission technology.
1.Requirements for the servo drive to the system.
(1) Wide range of speed regulation;
(2) High positioning accuracy;
(3) Sufficient transmission rigidity and high stability of speed ;
(4) Quick response, no overshoot.
In order to ensure the productivity and processing quality, in addition to high positioning accuracy, it also requires good fast response characteristics.That is to say, the response of the tracking command signal is required to be fast, because the acceleration and deceleration of the CNC system are required to be large enough when starting and braking, so as to shorten the transition process time of the feeding system and reduce the contour transition error.
(5) High torque at low speed, strong overload capacity.
Generally speaking, the servo drive has an overload capacity of more than 1.5 times within a few minutes or even half an hour, and can be overloaded 4 to 6 times in a short time without damage.
(6) High reliability
It is required that the feed drive system of the CNC machine tool has high reliability, good working stability, strong adaptability to the environment such as temperature, humidity and vibration, and strong anti-interference ability.
2.The servo driver requirements to the motor.
(1) The motor can run smoothly from the lowest speed to the highest speed, and the torque fluctuation should be small. Especially at low speed such as 0.1r/min or lower speed, there is still a stable speed without creeping phenomenon.
(2) The motor should have a large overload capacity for a long time, to meet the requirements of low speed and high torque. Generally, DC servo motors are required to be overloaded 4 to 6 times within a few minutes without damage.
(3) In order to meet the requirements of fast response, the motor should have a small moment of inertia and a large stall torque, and should have the smallest time constant and starting voltage as possible.
(4) The motor should be able to withstand frequent starting, braking and reversation.
Shenzhen Zhongling Technology Co., Ltd. is a company specializing in the production of in-wheel motors, in-wheel motor drivers, two-phase stepper motors, AC servo motors, two-phase servo motors, servo motor drivers, and stepper drivers. Products are mainly used in various types of CNC machine tools, medical machinery, packaging machinery, textile machinery and other automation control fields. The company has strong technical force and exquisite production technology. All motors are made of high-quality materials.
Post time: Nov-07-2022