First, the current of the driver:
Current is one of the important indicators to judge the capacity of the driver. The Max current of the driver is slightly larger than the nominal current of the motor. Usually the driver has 0.8A, 2A, 3A, 4A, 5A, 5.8A, 6A, 6.8A, 8A, 10A, 13A, etc. specification.
Second, the driver supply voltage:
The power supply voltage is a sign to judge the speed-up capability of the driver. Generally, the power supply voltage of the driver is: 12VDC, 24VDC, 40VDC, 80VDC, 110VAC, etc.
Third, the breakdown of the driver:
Subdivision is a sign of control accuracy, which can be improved by increasing the subdivision. Subdivision can increase the smoothness of the motor. Usually, the stepper motor has the characteristics of low frequency vibration. It can be improved by increasing the subdivision, so that the motor runs very smoothly.