... ,3200,4000,5000,6400,51200 available,pulse+direction control mode2 motor size 60&86mm,length 54.5&76.5&66.5 ... technique,reduce the current noise, no-loading motor speed can reach to 4000rpm5 motor current can be reduced half or 90% automatically ... the drive adopt optical electrical isolation method, the highest reaction frequency 2MHz.8 Error Protection: Error phase / open circuit protection Over ...