The Servo motor is composed of two words servo meaning assistant steering and motor meaning drive. So a servo motor is a self-adjusting motor/actuator.

Servo motors are independent electric motors with a closed-loop mechanism that rotates around a shaft. A servo motor is a mechanical motor that can be used to move an arm or a wheel connected to its shaft in a desired direction and size at the desired speed, also It accepts speed changes quickly due to low inertia or low inertia (low resistance to changing the speed or changing the direction of the object).

A servo motor is generally an electric motor which contains a set of electronic circuits like drives next to it, and the electric motor containing the shaft is responsible for the rotation action. The electronic equipment is also responsible for the accuracy of the electric motor, and this accuracy includes angle control, acceleration control, speed control, etc. The control management method works by using three tools: an error detection device, an amplifier, and an error correction device.

Each element plays an important role in coordinating the reference quantity with the controlled quantity. When the set quantity is different from the reference quantity, the error detection device detects and reveals this error. Then it sends an error signal to the amplifier which is responsible for correcting the power. The error correction device changes the controlled quantity to match the reference quantity.

By mentioning an example and with a simpler expression, it can be simplified as follows: suppose you have a production line of carbonated water bottles, the bottles go through several stages to be distributed to consumers. For the first step, the inside of the bottles is filled with carbonated water, then their lids are sealed, and in the next step, each bottle is labeled by the manufacturer. At what point the bottles stop, at what speed and to what point they move forward, and the time they stop at each point, as well as the angle of their movement, are all done by the servo motor. Information about the exact location of the bottles, the angle of movement of each bottle, as well as the speed of their movement, is given to the servo motor controller by the sensor or encoder.

The servo motor consists of the following:

Electric motor: which is responsible for creating movement through its axis.

Servo drives are used for both DC and AC motors, but in the industry, these early devices were generally used for DC. Because for many years high amperage control was done through SCRs. When transistors found the ability to control high Amperage and convert it to a higher frequency, AC servo drives became more popular. Older motors had a cooling fan that was attached directly to the shaft. When the motor was running at low speeds, the fan could not do the cooling job. Newer motors have separate fans that are installed to allow for the best cooling results. The constant voltage source feeds this fan so that the maximum RPM at any moment does not depend on the speed of these devices. One of the useful types of motors in the self-control system is a permanent magnetic (PM) type motor, its motor voltage can be AC or DC. This type of engine is similar to other previous types.

which must have a certain frequency (usually 50 to 100 Hz) and its positive pulse width must be between 1 and 2 milliseconds. When the width of this pulse is 1 millisecond, the motor goes completely to the left, and when it is 2 milliseconds, the motor turns completely to the right, and when it is 1.5 milliseconds, the motor is locked in the middle position.

Various companies have produced and supplied servo motors and servo drives, which we at Technomart sell reliable and reliable brands. Contact us to buy servo motor from Technomart. Also, if you need to buy servo drive, you can use our free consultation.

Some of the other existing brands of servo motor and servo motor in North America are as follows:

Also, the following are some of the most prominent brands of servo drive manufacturers.