The arbitrary parameters illustrated above in Figure-14, describe two continuous hit and hold current values being supplied to the valve, (I Max) and (I 5) respectively.
This blog is part three of a three-part series that comprises a complete white paper 'Efficient and Effective Direct Acting Solenoid Valve Control: The Benefits of Using Hit and Hold Electrical Control on Direct Acting Solenoid Valves'. This blog explains the PWM methodology, as it applies to direct-acting solenoid valves, and provides guidance in establishing the appropriate PWM parameters. When utilized to operate direct acting solenoid valves, a PWM signal can result in significant power saving and heat reduction while maintaining the desired pneumatic function. Pulse width modulation (PWM) is a method of reducing the average power delivered by an electrical signal, by breaking it up into predefined pulses.
