Starting frequency too high DC will be affected

Abstract: The start of the high frequency DC what impact, starting frequency DC motor is not too high, this is because the DC motor just starting speed is zero, therefore, pay special attention to during the operation.

DC motor starting frequency is not too high, this is because the DC motor just starting speed is zero, the starting process, in addition to overcoming the electromagnetic torque load resistance torque, but also to overcome the inertia of the rotating part of the mask, so the starter motor The burden is heavier than continuous operation.

If the initiating pulse frequency is too high, then the rotor speed to keep up with the speed of rotation of the stator magnetic field, so the first step completion position far behind in the equilibrium position, after each step increase in rotor speed is not much, but still stator field pulse frequency proportional to the rotational speed forward, so the distance between the rotor and the equilibrium position more and more, the final result of the rotor position falls outside the stable area and move a step out or oscillation, thus the motor can not be played

Move.

A variety of DC motor starting frequency varies, focusing miniature stepper motors and stepper motor drive shaft industrial products Solutions Expert letter electromechanical engineers need to follow the instructions recommended that data to determine the starting frequency of the motor, many high motor starting frequency using a dual voltage Operation starts from the moment the high voltage and low voltage changes, and step away from the smaller and more suitable for high frequency start, the greater the power the more suitable for high-frequency operation.

In order to properly start, starting frequency is not too high, when the motor starts and then gradually increase the frequency.