1. The main role of the servo motor is used for high-precision positioning, it is generally generally used pLC pulse sent through the servo drive to achieve the positioning effect, and the servo motor servo encoder can feedback the stroke of the servo motor and the pulse sent by the PLC to do Compare to achieve a closed-loop system
2. Servo motor only accepts the order to complete a certain action motor, the general motor can also be used as a servo motor, so a lot of types of servo motor; Servo system that is much more complex.
3. DC motor plus encoder, plus the encoder is only closed loop, servo system, there are many details of control, such as torque, over torque.
4. Divided into DC and AC servo motor two categories.
5. Encoder domain structure works
1. Transmissive Rotary Optical Encoder
2. Encoder resolution
3. Encoder classification and features: According to the principle of work can be divided into incremental and absolute
4. Servo motor and encoder work: the controller drives the motor running, the motor with encoder rotation,
Encoder feedback signal is sent to the controller, you can know the motor speed, moving position. or
The distance to move. According to the feedback signal, into the conversion, in the control action.
------ In fact, closed-loop feedback
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