subject: Ac Servo Motor Tech Talk [print this page] Knowing what type of AC motor you have is beneficial so that you do not have any issues when trying to pick out an efficient controller and amplifier for it. One thing that you need to remember is that each AC motor has a different controller suitable for it.
When we talk about AC servo motor, we are talking about an electric motor that is driven by alternating current. Commonly, an AC motor has two parts the stator and the rotor. The stator is the stationary part of the electric system which is supplied by coils with alternating current that produces a rotating magnetic field. On the other hand, the rotor is attached to an output shaft which is given torsion through a rotating field. Each AC servo motor must have an effective motor controller for proper functioning. Such systems seem simple when you take a look at it, but it needs a group of devices to manage the motor and making it work in different ways.
The AC servo motor is controlled by a synchronous motor control that uses brushless exchange with efficient feedbacks. In addition, it is the technology that dominates to utilize the concepts of moving coil, moving magnets and switched loath designs. Each motor has different controllers and functions; it depends upon the type of motor you have. It is for that reason that is quite difficult to effectively identify the effective controller that would work best with your motor. Being familiar with what kind of motor controller you require for your motor(s) is important to avoid any complications in the future.
Commonly, AC servo motors use squirrel cage rotors. These are usually found in the most domestic and in the light industrial alternating current motors. A squirrel cage is a rotating exercise cage made to keep animals. AC motor names have taken form from the shape of the inner rotor windings. In other words, the name of each motor depends on its shape.
A two-phase AC servo-motor has a squirrel cage rotor and a field with two windings: One with a constant-voltage (AC) main winding and another with a control-voltage (AC) winding in quadrature to produce a rotating magnetic field. Reversing the phase reverses the motor.
There are many servo motor specialist companies available out there when help is needed. You may use them for repairs, exchanges or simply for their knowledge. Most industrial electronic specialist have a website where you can easily contact them through a form or a chat. If you do not want to contact them, most of them have a learning center with videos and whitepapers that you can take advantage of.
by: Repair Zone
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