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How many wires are required for a pneumatic on/off valve with limit switch?

2015-08-31View Original

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Open limit +2, Close limit +2, Solenoid valve +2 – a total of six wires? Is there anyone famous who can explain this?
Reply #22015-08-31
It is best to run the wiring for solenoid valves and limit switches separately.
Reply #32015-08-31
If it is single-acting, the solenoid valve has 2 wires: 2 for opening it fully and 2 for closing it fully, totaling 6 wires. If it is double-acting, an additional 2 wires are needed for the other solenoid valve.
Reply #42015-09-01
You already mentioned the switch limit and the solenoid valve. What’s wrong with 3*2=6?
Reply #52015-09-01
Then add another ground wire, and it will cost seven yuan

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