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Operation of a combined electronically control motor unit and cooperating mechanical device, whereby within a given time interval the motor is operated at different speeds to prevent resonance effects
Operation of a combined electronically control motor unit and cooperating mechanical device, whereby within a given time interval the motor is operated at different speeds to prevent resonance effects
Method for operating a combined unit made up of an electronically controllable motor unit and a mechanical unit that cooperates with it, e.g. a pump. In order to execute a chosen number of rotations of the motor unit within a given time interval while at the same time avoiding the resonance range of the motor, the motor is operated for given periods within the interval with at least two different speeds that lie outside the motor resonance range. An independent claim is made for a device with an electronically controlled motor unit.
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