Stepping motor manufacturers analyze the influence of stepping motor speed change for you
The stepping motor manufacturer analyzes the factors that affect the speed change of the stepping motor for you. The stepping motor is an actuator that converts electrical pulses into angular displacement.
Generally speaking, when the stepping driver receives a pulse signal, it drives the stepping motor to rotate at a fixed angle (The step angle).
You can control the amount of angular displacement by controlling the number of pulses, so as to achieve the purpose of accurate positioning;
At the same time, you can control the speed and acceleration of the motor by controlling the pulse frequency, thus achieving the purpose of speed regulation.
With the rapid development of modern industrial technology, the level of the manufacturing industry is also getting higher and higher. In the production and operation of enterprises, the requirements for the work efficiency of mechanical equipment are quite high, in the process of stepping motor putting into use, the influence of stator winding inductance on the working quality of stepping motor is often ignored.
The inductor coil of the stepping motor has certain inductance, because each phase winding of the stepping motor is an inductor coil. The inductor has the characteristic of delaying the change of current.
When the stepping motor rotates, the inductance of each phase winding of the motor will form a reverse electromotive force; The higher the frequency, the greater the reverse electromotive force.
Generally speaking, when the frequency is low, the power-on time of each phase winding is longer than the power-off time, which is greater than the time constant of the coil, and the coil has time to obtain higher current.
However, at high frequency, the power-on time and power-off time of each phase winding are very short, far less than the time constant of the coil, and the current obtained by the coil is very small.
The torque is approximately proportional to the square of the current, so the higher the frequency, the smaller the average current in the winding, the greater the average torque of the motor, and the greater the load capacity.
The load capacity of the stepping motor will be closely related to the inductance of the stator winding with the increase or decrease of the rotating speed, so the public should make a certain comparison and choose the best product before purchasing the stepping motor.
Related reading: Stepping Motor must face the problem of waterproof and moisture-proof. Stepping motor manufacturer: stepping motor is a kind of personalized motor TAG stepping motor manufacturer