Low price closed loop stepper driver is an actuator which used for Nema 17 bipolar stepper motor. It drives hybrid 2 phase stepper motor to rotate at a step angle in the set direction when receiving a pulse signal.

Features

• High performance and high efficiency. The digital stepper motor driver adopts 32-bit DSP control technology to make the hybrid bipolar stepper motor achieve the best output performance.
• Low vibration and low noise. The method of combining digital and analog and advanced closed-loop control system of power angle.
• Small temperature rise and long life. The current is adjusted intelligently according to the load.
• Interference frequency filtering. Photoelectric isolation differential signal input, impulse response frequency up to 200Kpps.
• Strong function and low repair rate. Under-voltage, over-voltage, over-current, short circuit, open circuit, tracking error out of tolerance and other fault diagnosis transition indication and automatic protection function.

Specification

Microstep Segmentation Setting

Dimensions (Unit: mm)

Wiring Diagram

Details

Tips: How to set up a 2 phase stepper motor driver

Usually the step angle of a two-phase stepper motor is 1.8 degrees. It is calculated that it takes 200 pulses to make one revolution, that is, it needs to walk 200 steps, and each step is 1.8 degrees. Generally, two phase hybrid stepper motor drivers are equipped with switches to adjust the number of subdivisions. You can easily set the desired number of subdivisions by flipping the corresponding setting switch against the setting table.

Two phase bipolar stepper motor driver setting table has two forms, one is the subdivision number, and the other is to directly give the number of pulses required for each revolution under different subdivision numbers. In order to adapt to stepping motors with different rated currents, the drive generally has an adjustment function, and the adjustment method is also different. Generally, two forms of potentiometer or dial switch are used. The most commonly used is the dial switch form. Appropriate current parameters should be selected when setting, the greater the current, the greater the torque that the motor can generate.

In order to reduce the heating of the motor, many drivers have a half-current function. When the half-current switch is turned on, the stepper motor driver will reduce the current to the set value if it does not receive a pulse signal within a short period of time. Half, let the motor better heat dissipation. But when this function is used, the locking torque will be reduced correspondingly in the half-flow state, so it needs to be selected according to actual needs.