Shenzhen Stepper motor supplier manufacturer, stepper motor main characteristics are:
1 the stepper motor must be driven to operate, and the driving signal must be pulse signal. When there is no pulse, the stepper motor is stationary. If appropriate pulse signal is added, it will rotate at a certain Angle (known as step Angle).The speed of rotation is proportional to the frequency of the pulse.
2. The stepping Angle of the three-phase stepping motor is 7.5 degrees, and it needs 48 pulses to complete a circle of 360 degrees.
3.The step motor has the superior characteristic of instant start and quick stop.
4 .Changing the order of pulses can easily change the direction of rotation.
Therefore, at present, the printer, plotter, robot, and so on equipment all take the stepper motor as the power core.
In addition, the high vibration and noise of stepper motor at low speed rotation are its inherent disadvantages, which can be generally overcome by the following schemes:
A. If the stepping motor works in the resonance region, it can avoid the resonance region by changing the deceleration ratio and other mechanical drives;
B. Use the drive with subdivision function, which is the most commonly used and easiest method;
C. Replace it with a stepper motor with a smaller step Angle, such as a three-phase or five-phase stepper motor;
D. Alternating current servo motor can almost completely overcome the vibration and noise, but the cost is high;
E. Add a magnetic damper to the motor shaft. Such a product is available on the market, but the mechanical structure has changed greatly.
