Solenoid valve wiring description

For the wiring of the solenoid valve, how to connect the solenoid valve? Take the solenoid valve of the pneumatic switch valve 220V AC as an example. The DCS outputs a DO signal, and a 220 V power supply cable is needed. Is this just two cables? If there is a valve position switch, what is the wiring? The valve position switch also needs to be powered separately? How many cables do you need in total?

The switching valve is controlled by DCS. It is very simple. It is actually controlling the on and off problems of the solenoid valve. The output of DCS is generally a passive contact. It needs to be isolated and converted by the intermediate relay, that is, the coil of the relay is 220V/AC with 24V/DC contact. So that a cable (2 * 1.5), if there is a feedback signal for position on and off, you can use a cable (4 * 1.5) or two cables (2 * 1.5).

In the case of pneumatic on-off valves, solenoid valves are generally used with a single coil. DCS outputs a DO to control the contacts of a relay and is connected in series with the power supply and solenoid valve. Of course, it is a control cable. If there is a valve position switch, it is also a The root control cable, regardless of the DCS belt without a barrier.

The 2-position 5-way solenoid valve has automatic reset and electric reset. The automatic reset only controls one electromagnetic coil. The PLC has one output control signal. The electric reset should control two electromagnetic coils. The PLC must have two output control signals. .

How to wire 12V solenoid valve?

Solenoid valves are generally self-contained with a cover for wiring. But first make sure that the 12V solenoid valve is DC or AC power. Whether it is consistent with the transformer output. DC should be divided into positive and negative poles, can not be reversed, AC does not matter, just pick up, but can not be connected to the ground. The solenoid valve K180-4E1-L-DC12V is DC, and the transformer output is 12V to be rectified and filtered.

How to connect the explosion-proof solenoid valve of the tanker?

I am working on the solenoid valve and then working on the relay. Then the vacuum pump works. Find the wiring. How is the solenoid valve 3 lines?

The solenoid valve is three wires, yes, one positive pole, one negative pole, and one grounding. This opens the solenoid valve junction box, which can be clearly seen. The relay and the vacuum pump are connected in series, and the solenoid valve is connected. After the signal is output, the relay and relay are connected to the line that controls the vacuum pump, just fine!

Asked: The 3 more lines have no ground wire. The ground wire is not here.

Answer: There is a lot of connection in the bottom line. It can be grounded separately. It can be grounded. Of course, I have also encountered it. It depends on your specific situation. Your grounding method should be centralized grounding, that is, Therefore, the ground wire is uniformly connected to the terminal block, and then the terminal block is grounded uniformly. If you find your junction box, there should be a grounded terminal.