How to improve the low speed performance of two phase stepping motor
4, stepper motor is the electrical pulse signal into angular displacement or linear displacement of the open-loop control element. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, namely to add a pulse motor, the motor is turned to a step angle. The existence of this linear relationship, and stepper motor only periodic error and accumulated error etc.. It is very simple to control by stepping motor in the control field of speed, position and so on.5, the stepper motor used in low-speed occasions per minute speed less than 1000 rpm (0.9 degrees 6666PPS), the best in the 1000-3000PPS (0.9 degrees) between the use of the reducer in the work here, the motor of high working efficiency, low noise. It is better not to use the full step state, and the vibration is great when the whole step is in the state.
2, the two-phase stepper motor in the stator only two windings, there are four outlets, the whole step is 1.8 degrees, half step is 0.9 degrees. In the drive, as long as the two-phase winding current on-off and current direction control, you can.3, stepper motor and not ordinary DC motor, AC motor in the regular use. It must be composed of double ring pulse signal, power drive circuit and so on, and the control system can be used. Therefore, it is not easy to make good use of stepping motor. It involves many specialized knowledge, such as mechanical, electrical, electronic and computer.
The number of phases of the stepping motor is the number of coils in the motor. There are two phases, three phases, four phases and five phase stepping motors in the motor. The motor phase number is different, and the step angle is different. The phase angle of the two-phase motor is 1.8 degrees, the three-phase is 1.5 degrees, and the five phase is 0.72 degrees. In the absence of subdivision drive, the user mainly depends on the choice of different number of stepper motors to meet the requirements of step angle. If you use a subdivision drive, the number of phases becomes meaningless and the user can change the step angle just by changing the fine fraction on the drive.
