for the control box has an important role for the system to release the heat out of the control box. The control unit of air cooling unit for the control box being used at the present time will function "on"and "off" when the temperature is higher than the set-value, it will function "on" the air cooling unit, and will function "off" when the temperature is below the set-value. and should also be able to record the relieving data foe being used as a trail to adjust the machine/equipment up to its full capacity that will resulting in energy saving.