Brushless Servo Motors

Brushless servo motors are used when an industrial application requires high performance and precise speed regulation. Brushless servo motors are manufactured with a designated controller known as a servo drive or servo driver.Brushless servo motors use position feedback to precisely regulate motor control by being paired with an encoder. Encoders measure a brushless servo motor’soutput shaft position which is compared to the command position. When the brushless servo motor output shaft doesn’t match the demand signal, an error signal is sent to the servo motor controller; the controller adjusts accordingly and sends a signal back to the servo motor until the demand position is met. Brushless servo controllers (servo drive, driver, etc.) are never included in the base price of the brushless servo motor. Brushless servo motor systems can be expensive but the cost is justified with optimal manufacturing processes via precise speed regulation.

Brushless servo motors output more torque than brushed direct current motors. Brushless servo motors aren’t as loud during operation than brushed direct current servo motors. The lifespan of brushless servo motors exceeds than that of a brushed direct current motor because there aren’t brushes or a commutator to maintain. The idea behind brushless servo motors was to be able to integrate control function of the servo motor with industrial electronic components and personal computers; and to precisely position machines in manufacturing processes. Some manufacturers use brushless servo motors in explosive and dirty environments because brushless servo motors are entirely closed and sealed to prevent dust or sparks to reach the servo motor parts.