Pre-charging pneumatic air tank

[Jon Stratis]

Originally Posted by magnets

4). Please show me the rule that prevents me from running the compressor for an extra couple of seconds after the pressure switch tells the compressor to stop. Also, can you show me my "fact" I invented?

I would argue R88 part C prevents that. Since you are choosing to continue running the compressor after the switch tells you to stop, I would say you are over pressuring the system - you're pressuring it past the stop point for the switch, which is the only legal feedback for controlling the compressor.

R88
The pressure switch requirements are:

It must be connected to the high-pressure side of the pneumatic circuit (i.e. prior to the pressure regulator) to sense the “stored” pressure of the circuit.
The two wires from the pressure switch must be connected directly to a digital input and ground pin on the Digital Sidecar.
The cRIO must be programmed to sense the state of the switch and operate the relay module that powers the compressor to prevent over-pressuring the system.