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Unread 24-03-2004, 12:40
ngreen ngreen is offline
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Re: Mulit-postioning with pnuematics this year?

Quote:
Originally Posted by T134guy
I've been going throught this thread and at all the skimatics i've looked at, the soliniod that feeds the piston seems to always be a double solinoid. How is it possible to have a double solinoid in that position when a double solinoid has 4 ports (two to the piston, two for exuast/pressure)? Wouldnt it have to be a single solinoid?

-Pat
Actually it is a five port manifold. You forgot the input.

You can use the double because the exhaust ports converge at a T and continue to the input of the next solenoid.

This year the solenoid combination makes no difference. You can use two single solenoids, two doubles, or one of each and this will work if you program it right. It is a control system. Last year we were limited in the number and type of solenoids we could use and this combination worked perfectly for what I wanted it to do.

BTW- Last year's and some of this year's single solenoids have five ports too. The difference between the singles and doubles is how it switches states and doesn't depend on the number of ports. (I think you were thinking of this years festo's with only one exhaust. And yes, they can be used too)