... , variable speed by 0-10V/PWM control & alarm reply What is the advantages of our brushless dc fan motor in FFU~Fan Filter Units ... , speed setting, status acquisition and reporting errors. ( function(){ var aBigImageSrc = [ 'http://i00.i.aliimg.com/photo/v0/759320236_1/High_voltage_400V_Brushless_DC_motor_for.jpg' , 'http://i00 ...