Motor name
Time: 2017-12-18
Servo motor data exchange Servo motor works Servo motor internal rotor is a permanent magnet, the driver control U / V / W three-phase electromagnetic field, the rotor in the magnetic field under the action of rotation, while the motor comes with encoder feedback Signal to the driver, the driver compares the feedback value with the target value, and adjusts the rotation angle of the rotor.
The accuracy of the servo motor depends on the accuracy of the encoder (number of lines).
4. What is a servo motor?
There are several types?
What are the characteristics of work?
A: The servo motor, also known as the implementation of the motor, in the automatic control system, as the implementation of components, the received electrical signals into the motor shaft angular displacement or angular velocity output.
Divided into DC and AC servo motor two categories, its main feature is that when the signal voltage is zero, no rotation phenomenon, the speed decreases with constant torque increases, may AC servo motor and brushless DC servo motor in function What's the difference?
A: AC servo is better because it is a sine wave control, torque ripple small.
DC servo is trapezoidal wave.
But the DC servo is relatively simple and cheap.
Permanent magnet AC servo motor Since the 1980s, with the development of integrated circuits, power electronic technology and AC variable speed drive technology, the development of permanent magnet AC servo drive technology has made outstanding progress. Many famous electrical manufacturers have launched their own AC servo Motor and servo drive products and continue to improve and update.
AC servo system has become the main development direction of the contemporary high performance servo system, so that the original DC servo faced with the crisis being eliminated.
Since the 1990s, AC servo systems that have been commercialized in various countries in the world are servo motors driven by a fully digital controlled sine wave motor.
AC servo drive in the field of transmission with the rapid development.
Permanent magnet AC servo motor with DC servo motor, the main advantages are:
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