stepper motor driver

Main features: 1.supply voltage 80-265VAC2.input current 4 switch , 16 choose, Max current is 8A3.current control with advanced digit PID current control,with high speed andlarge torque4.Microstep 16 different resolutions selectable via switch: 200, 400, 800, 1600, 3200, 6400, 12800,25600, 1000, 2000, 4000, 5000, 8000, 10000, 20000, 25000 step/rotate5.speed range with appropriate stepper motor ,the speed can reach to 3000rpm6.resonance-restain can check the resonance itself to restain the intermediate frequency vibrate7.Drive power on self-checking motor parameter8.Optional motor idle current 25%,50%,75% or90%9.Self-checking, motor with 1 turn/s speed do two laps positive & negative reciprocating movement via dial switchfunctiondimension