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Jump the frequency of the stepper motor
- Nov 25, 2016 -

Stepper motor is a kind of induction motor, its operation principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step motor abilities normal operation, the drive is time-sharing power supply for step motor, multiphase timing control device.

Stepper motor start frequency cannot be too high, this is due to the step motor speed when just starting to zero, in the process of starting, the electromagnetic torque in addition to overcome the load resistance torque, inertia win in rolling part also masking, so start the motor than have work to do.

If starting when the pulse frequency is too high, the speed of the rotor is can't keep up with the speed of the stator rotating magnetic field, the first step out of position far behind balance azimuth, the next step in the rotor speed is added, and the stator magnetic field is still rolling forward, at the rate of is proportional to the pulse frequency and spacing between the rotor and equilibrium position of more and more big, in the end because of the rotor bearing to move outside the safe zone to render step or vibration, thus makes the motor can't start.

All kinds of different frequency of the stepper motor, focus on the micro step motor and stepper motor drive control in mountain club goods planning experts electrical engineer claims in accordance with the motor are needed to clarify data concluded that frequency, launched many high frequency of the motor using dual voltage operation where a moment for low pressure by high pressure change, and a step away from the smaller suitable high frequency, the greater the power, the more suitable high frequency operation. In order to be the normal starting, the starting frequency cannot be too high, when the motor start and then gradually increased frequency.