Single axis A3977 stepper motor driver board for CNC Router Mill
current 0-2A,12-36V input voltage

 

This version has the following functions and features:

1, with 4-aisle adjustable current 0-2A rated output 2-phase bipolar stepper motor drive;

2, standard parallel port interface, support for MACH2, MACH3,KCAM4 series software;

3, with optical isolation and DCDC power supply isolation, the full protection of your computer parallel port and equipment;

4, supports 4 working modes:hybrid decay mode, fast decay mode, slow decay mode, normal decay mode;

5, supports four step options :1/1,1 / 2,1 / 4,1 / 8;

6, 12-36V single power supply switching power supply chips to use as a 5V power supply, stable and heat small;

7, using RC +7414 automatic semi-flow;

8, with a relay output to control the spindle.