... positive poleNote:Must guard against exceeding 80V,so as not to damage the module2,GND:DC power cathode3,A+,A-: ... phase electrical machinery is connected with driver , users are apt to connect the phase by mistake, thus would damage the driver ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Digital step motor drivers using new 32-bit DSP with high performance, high torque, and low noise