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Unread 23-02-2010, 12:59
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AKA: Andrew Nicholson
FRC #1778 (Chill Out)
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Re: How to wire Air Compressor's spike relay?

Quote:
Originally Posted by Tem1514 Mentor View Post
A few pointers:
For the pressure switch which is nothing more then a SPST switch that is OPEN when the pressure is low and then CLOSES when the pressure is high. Just two states for the pressure switch, on or off.
Correction:

The Nason Pressure Switch OPENS when the pressure is above 125psi and CLOSES when it drops below ~95psi. See page 3 of the FRC 2010 Pneumatics Manual. It must be installed on the high pressure side of the regulator.

The robot inspector may check that the pressure relief valve works by using a clip-wire to short the Pressure Switch, effectively closing it. This should turn on the compressor. The relief valve must be installed directly on the compressor this year <R77>. The inspector will run the compressor up to no more than 135psi expecting that the relief valve will operate at ~130psi.
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Andrew Nicholson
2011 FRC Robot Inspector (Seattle, Portland)
Mentor FRC 1778 "Chill Out", FTC 3018, 3940 "Hawks", 4434 "Heat Misers"

"Everything should be made as simple as possible, but no simpler."