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maxon Motor Control

More about maxon motor controllers

Controlled variables

Speed control
The function of the speed servo amplifier is to keep the prescribed motor speed constant and independent of load changes. To achieve this, the set value (desired speed) is continuously compared with the actual value (actual speed) in the control electronics of the servo amplifier. The controller difference determined in this way is used by the controller to regulate the power stage of the servo amplifier in such a manner that the motor reduces the controller difference. This represents a closed speed regulating circuit.

Position control
The positioning control ensures a match between the currently measured position with a target position, by providing the motor with corresponding correction values, as with a speed controller. The position data are usually obtained from digital encoder.

Current control
The current control provides the motor with a current proportional to the set value. Accordingly, the motor torque changes proportionally to the set value. The current controller also improves the dynamics of a superior positioning or speed control circuit.

Various 4-quadrant PWM servo controllers for permanent magnet-activated brushed DC motors and brushless EC motors meet all requirements in terms of performance and functionality. Thanks to the fast current controller and dynamic speed controller, outstanding control characteristics are achieved. Combined with maxon motors, the positioning controllers constitute complete solutions for highly demanding motion control applications.