... 8000, 10000, 20000, 25000 step/rotate5. speed range with appropriate stepper motor ,the speed can reach to 3000rpm6. resonance-restain can check ... 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 & ...