Hi Jim, Say the DCV was solenoid operated in both directions. Could you please do a video showing the ladder diagram if the cylinder need to be extended and retracted by energising both solenoids?This would be very helpful for a project I am currently undertaking.Thanks Jim.
@bigbadtech6 жыл бұрын
Typically double solenoid valves need to energize one solenoid and deenergize the other to shift positions (ie: A on, B off to extend, A off B on to retract). In the deenergized state a mechanical detent keeps the valve in the last asserted state. You'll often find these types of valves in lifting or grabbing operations. In the event the systems lifts a load and is accidentally depowered the mechanical detent keeps the valve in the last state (ie: holding the load). I don't have any videos making use of these types of valves yet ... however .... the ladder logic would be almost like a reversing motor stater with electrical interlocks. kzbin.info/www/bejne/laPYqJKjnr2Bg68 featuring plugigng action kzbin.info/www/bejne/kKqsk42ijbimfMk The idea is to permit instantaneous reversal of the cylinder however prevent simultaneous extension and retraction.