brushless motor, recently very hot a motor, the reason is brushless motor with small size, large torque, overload capacity is strong, speed stability, long life, can communication, can the advantages of the control, is a typical electromechanical integration of the motor. In automation trend increasingly development today, the dongguan than brushless motor drive motor has the congenital advantage, so inevitably became a popular motor current.
brushless motor and servo motor, stepping motor, can support the communication protocol, at the same time, also supports the installation of encoder. What is the role of the encoder? Simply speaking, is the test for the motor speed accurately, or know how many circuits of the motor, means can make accurate positioning for the operation of the motor. The brushless motor can be equipped with what type of encoder? The following will discuss together with you.
the most common type of brushless motor manufacturer of encoder is the hall of encoder, generally on the rotor of motor has three posts, every 120 & deg; A, can be simple and easy speed monitoring and feedback. But low precision, suitable for high accuracy is not needed, but need to know about the speed of the user.
the second is the incremental encoder, the encoder is brushless motor can be equipped with one of the most precise encoder, incremental encoder is converting displacement into periodic signal, and then convert the electrical signals into count pulse, expressed in the number of pulse displacement, the size of the main role is to monitor the brushless motor rotation speed and know how many circuits of the motor. Advantage is precision is very high, but the cost is relatively high.
the third is a simple type magnetic, general accuracy for the 1000 line, the precision is not high incremental, but is much better than the hall encoder, cost is much lower, than the incremental encoder is commonly used in batch production of the device.
customers when selecting a brushless motor encoder type, need to choose according to their own actual need, after all, the encoder is installed components for motor control, more precise if you don't need precise control of equipment, there is no need to add the encoder, cost savings.
