Issues regarding the distributor and pneumatic control valve
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Why must the locator and the distributor be connected together, and why does the distributor require its own air supply? In the diagram of the tricycle, what is the purpose of the air control valve that is located at the very top? Why is there one air supply line coming from the air source, and another line after passing through the pressure reducing valve? That air then goes to the solenoid valve which is connected to the air control valve. I don’t understand this (There’s a solenoid valve on the hexagonal side.) Could someone explain the principle of this pneumatic circuit diagram? Thank you very much.
One is for signal control, and the other is for the manufacturing processes.
The air source at the control end of the pneumatically controlled valve is used to ensure that the valve is in a safe position in the event of an air supply failure; this is achieved by monitoring the total air pressure supply, and once it falls below a certain set value, the pneumatically controlled valve activates to place the valve in a safe position.