Wiring method of Delixi proximity switch for controlling solenoid valve

The wiring method of Delixi proximity switch for controlling solenoid valve is as follows:

Required Materials

- Delixi proximity switch (taking the three-wire system as an example, usually there are three wires in brown, blue and black colors).

- Solenoid valve (select an appropriate model according to its operating voltage).

- Power supply (matching the operating voltages of the proximity switch and the solenoid valve).

- Relay (if the output current of the proximity switch is insufficient to drive the solenoid valve, a relay may need to be added).

- Several wires, terminal blocks, etc.

 Wiring Steps

1. **Determine the Type of Proximity Switch**: Delixi proximity switches are divided into NPN type and PNP type. When the NPN type proximity switch detects an object, it outputs a low level; when the PNP type proximity switch detects an object, it outputs a high level. Select an appropriate type according to actual needs and control logic.

2. **Connect the Power Supply of the Proximity Switch**: Connect the brown wire of the proximity switch to the positive pole of the power supply, and the blue wire to the negative pole of the power supply. Ensure that the power supply voltage is consistent with the rated operating voltage of the proximity switch. Commonly seen voltages are generally DC24V, DC12V, etc.

3. **Connect the Proximity Switch with the Solenoid Valve (or Relay)**:

    - If the output current of the proximity switch can directly drive the solenoid valve, for the NPN type proximity switch, connect the black wire to the negative pole of the solenoid valve, and the positive pole of the solenoid valve to the positive pole of the power supply; for the PNP type proximity switch, connect the black wire to the positive pole of the solenoid valve, and the negative pole of the solenoid valve to the negative pole of the power supply.

    - If the output current of the proximity switch is insufficient to drive the solenoid valve, a relay needs to be added. For the NPN type proximity switch, connect the black wire to the negative pole of the relay coil, and the positive pole of the relay coil to the positive pole of the power supply; for the PNP type proximity switch, connect the black wire to the positive pole of the relay coil, and the negative pole of the relay coil to the negative pole of the power supply. Then connect the normally open contact of the relay in series with the solenoid valve in the power circuit, that is, one normally open contact of the relay is connected to the positive pole (or negative pole) of the power supply, the other normally open contact is connected to the positive pole (or negative pole) of the solenoid valve, and the other end of the solenoid valve is connected to the negative pole (or positive pole) of the power supply.

4. **Check the Wiring**: Carefully check whether all the wiring is correct, ensure that the connections are firm, and avoid situations such as looseness and short circuits.

Precautions

- Be sure to cut off the power supply before wiring to prevent electric shock and equipment damage.

- The operating voltages of the proximity switch and the solenoid valve must match, otherwise it may cause the equipment to fail to operate normally or be damaged.

- If a relay is used, pay attention to the coil voltage and contact capacity of the relay to ensure that it can meet the driving requirements of the solenoid valve.

- Route the wires in accordance with the electrical installation specifications to avoid mechanical damage and electromagnetic interference to the wires.

- During the debugging process, if a problem is found, cut off the power supply in a timely manner, check whether the wiring and equipment are normal, and re-power on and test after troubleshooting.