Digital Stepper Motor Driver, 2 Phase, DC 24V ~ 80V

Digital stepper motor driver equipped with an encoder offers adjustable current control and multiple step resolutions, allowing the hybrid bipolar stepper motor to be driven with simple step and direction inputs.

Specification

Operating Current Setting

Microstep Segmentation Setting

Dimensions (Unit: mm)

Wiring Diagram

Details

Tips: Power-off phase memory function of stepper motor driver

The stepper motor driver is in a certain phase when the power is off. If the phase is different from this phase when the power is turned on the next time, the motor will jitter. In order to eliminate the jitter, the phase when the power is off must be memorized.

The running sequence of the stepper motor is 8. If it stops at the 4th step, the board is powered off, and after the power is re-powered, if you directly start to drive the 1st step at the 4th position, there will be a skip. The stepper motor driver is an actuator that converts electrical pulses into angular displacement. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in the set direction, and its rotation runs step by step at a fixed angle. The stepper motor driver can control the angular displacement by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, it can control the speed and acceleration of the motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation and positioning. If the system can still remember that it is still in step 4, it can correctly issue the command to go to step 5 or 3.

Most stepper motor drivers do not have the power-down phase memory function, especially the stepper motor drivers that use common dedicated ICs. The reset signal of the reset pin after the dedicated IC is powered on will reset the motor phase to the initial value. The power-on jitter should be It is inevitable. Stepper motor drive Stepper motor cannot be directly connected to the power frequency AC or DC power supply to work, but must use a dedicated driver. As shown in the figure, it is composed of a pulse generation control unit, a power drive unit, and a protection unit. The two units enclosed by the dot-dash line in the figure can be controlled by a microcomputer.