0: Fan is always ON
1: Fan is OFF after the AC motor drive stops for one
minute.
2: Fan is ON when the AC motor drive runs; fan is
OFF when the AC motor drive stops
3: Fan turns ON when temperature (IGBT) reaches
(60°C ON, 40°C OFF)
4: Fan is ON when the AC motor drive runs; fan is
OFF when the AC motor drive stops. Fan is in
stand-by mode at zero speed.