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Unread 22-01-2011, 20:14
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Chris Fultz Chris Fultz is offline
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Re: Pneumatics Question

For many applications, it makes sense to use one solenoid instead of 2.

Shifting is one example - it is important that both transmisssions shift at the same time. So having a single solenoid controlling the shift ensures that both will be energized together. If you have separate solenoids, and one sticks or fails (bad connector, bad signal, etc.) you can end up with one side of the robot in hi and one in low.

Other examples could be any system where it is important that both cylinders (or more) be in the same condition.
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