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Three methods of stepping motor commonly used for lifting frequency control:

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Three methods of stepping motor commonly used for lifting frequency control:

Three methods of stepping motor commonly used for lifting frequency control:

(1) Linear lifting frequency. This method is to lift and lower with a constant acceleration, has good smoothness, and is suitable for a fast positioning method with a large change in speed. Although the acceleration time is long, the software implementation is relatively simple.

(2) Index curve lifting frequency. This method is derived from the moment frequency characteristics of the stepper motor and is derived from the variation law of the torque with frequency. It conforms to the movement law of the stepping motor acceleration. As a result, the deceleration process can fully utilize the effective torque of the stepping motor, has good fast response performance and short lifting time. The exponential lifting control has strong tracking ability, but the balance is poor when the speed changes greatly and is generally suitable for cutting processing with high tracking response requirements.

(3) Parabolic lifting frequency. The parabolic lifting frequency combines the linear lifting frequency and the exponential curve lifting frequency to fully utilize the effective torque of the stepping motor at low speed, which greatly shortens the lifting speed time and has strong tracking ability. This is a comparison. Good method.

 

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Pub Time : 2019-08-23 11:06:48 >> News list
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