The operating instructions of stepper motor generally include operating temperature range of 0 ~ 50 ℃, humidity range of 20% ~ 90% RH, storage temperature range of - 20 ~ 70 ℃ and humidity range of 15 ~ 95% RH. In order to ensure the normal use of the motor, please control the temperature below 100 ℃.
Stepper motor driver is an actuator that converts electric pulse into angular displacement. After receiving the pulse signal, the stepping driver drives the stepping motor to rotate according to the set direction - fixed angle (called "step angle"), and its rotation steps at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the speed and acceleration of motor rotation can be controlled by controlling the pulse frequency
Selection of parameters of high frequency power supply for wire cutting
1. Selection of wire cutting working voltage: turn the "voltage regulation" knob to select the processing voltage of 70 ~ 110V, which is divided into three levels. The value displayed by the voltmeter is the processing voltage value.
The stepping system mainly adopts two-phase hybrid stepping motor and corresponding subdivision driver. However, in China, most users have no special understanding of "segmentation". Some people only think that subdivision is to improve accuracy, but it is not. Subdivision is mainly to improve the operation performance of the motor.
Wire cutting high frequency power supply is a processing method that uses molybdenum wire and conductive parts to heat the device with discharge current, and then process it into shape. In the process of spark discharge, voltage is a necessary condition for spark discharge, such as wire cutting high-frequency power supply.
Unipolar stepping motor and bipolar stepping motor are the two most commonly used driving structures of stepping motor.
The driving circuit of unipolar stepping motor uses four transistors to drive two groups of phases. The structure of the stepping motor is shown in Figure 1, including two groups of coils with intermediate taps. The whole motor has six wires connected to the outside.