... 4(6ROLLERS,10ROLLERS),DG-6(6ROLLERS,10ROLLERS)Speed:1 to 300 rpm,reversibleSpeed control: Rotary encoded switchDisply: 3-digit LED ... direction, internal optical coupling isolation; use external control must buy external control module or and consulting company wiring way.Start / ... stop and cw / ccw control,0-5V,0-10V,4-20mA,0-10KHZ speed control.Communication fundtion:RS485Memory function:Storing the ...