Briefly a typical motor drive system is expected to have some of the systems block diagram indicated in figure 27 1.
Servo motor control system block diagram.
Note the greek letter sigma meaning summation aka the controller surrounded by a circle.
The block diagram representation of the armature controlled dc servo motor is developed in steps.
This will give accurate and stable control over speed and position.
Let us consider the armature controlled dc servomotor as shown in figure 1.
Working principle of ac servo motor.
Block diagram of a position servo.
Below is a block diagram of a modern automated systems incorporate closed loop feedback for motion control.
The field servo motor.
Below is the illustration of the various system level.
This is the summation or sum point where the input signal and the.
In this the reference input at which the motor shaft has to maintain at a certain position is given to the rotor of synchro generator as mechanical input theta.
The schematic diagram of servo system for ac two phase induction motor is shown in the figure below.
The back emf is proportional to the speed of the motor and hence.
Field controlled dc servo motor.
They typically include a servo system that consist of feedback elements and motor driver combined in a manner.
The load may be a conveyor system a traction system the rolls of a mill drive the cutting tool of a numerically controlled machine tool the compressor of an air conditioner a ship propulsion system a control valve for a.