â—†    HV series is AC speed driver with variable parameters and PI close-loop of speed and current.The reference can be 0～*0Vanalog voltage or 0～**0%PWM.Also it can be 0～3KHz frequency by adding a F-V unit on PCB.Parameters can be set by DIP switches and potentiometers such as pole number,max speed,ramp time ,loop filter time and peak current etc.Protective functions such as short circuit,safe start,safe direction reversal etc are presented.Voltage grades are *0～**5VDC/**0VAC、*0～**5VDC/*0～**0AC.Peak current grades are 1A、3A、8A、*6A、*4A.Ambient temperature grade are**0～*5℃,**0～*5℃.