Introduction to Baoji NYJ18G2-X3NF Waterproof and Oil proof Proximity Switch Proximity Switch: Proximity switch is a position switch that can be operated by mechanical direct contact with moving parts. When an object approaches the sensing surface of the switch to the action distance, it does not require mechanical contact or any pressure to activate the switch, thereby driving DC electrical appliances or providing control instructions to computer (PLC) devices. Proximity switch is a type of switch type sensor (i.e. contactless switch) that combines the characteristics of travel switch and micro switch, as well as sensing performance. It has reliable operation, stable performance, frequency response, long application life, strong capability, and features such as waterproofing, shock resistance, and corrosion resistance. The products include inductive, capacitive, Hall, AC, and DC types. The structural form of proximity switches can be divided into cylindrical, square, groove, perforated (through), and separated types according to their external shape. The cylindrical type is more convenient to install than the square type, but its detection characteristics are the same. The detection position of the groove type is on the inner side of the groove, used to detect objects passing through the groove. The through type is rare in China, but it is more commonly used. It can be used for small parts such as small screws or balls, and buoys to assemble into water level detection devices& nbsp; Proximity switch wiring method 1) There is a difference between two wire and three wire proximity switches. Three wire proximity switches are further divided into NPN and PNP types, and their wiring is different. 2) The wiring of the two wire proximity switch is relatively simple. The proximity switch is connected in series with the load and then connected to the power supply. 3) Wiring of the three wire proximity switch: connect the red (brown) wire to the positive end of the power supply; Connect the blue wire to the 0V end of the power supply; The yellow (black) line represents the signal and should be connected to the load. The other end of the load is connected as follows: for NPN type proximity switches, they should be connected to the positive end of the power supply; For PNP type proximity switches, they should be connected to the 0V end of the power supply. 4) The load of proximity switches can be signal lights, relay coils, or digital input modules of programmable PLCs. 5) Special attention should be paid to the type selection of the three wire proximity switch connected to the PLC digital input module. PLC digital input modules can generally be divided into two types: one type has a common input terminal that is the negative pole of the power supply, and the current flows out from the input module. In this case, NPN type proximity switches must be selected; Another type of common input terminal is the positive pole of the power supply, and the current flows into the input module. At this time, it is necessary to choose a PNP type proximity switch. Don't make the wrong choice. 6) The two wire proximity switch is subject to working conditions. When conducting, the switch itself generates a certain voltage drop, and when cutting off, there is also a certain residual current flowing through. Therefore, consideration should be given when selecting it. Although the three wire proximity switch has an additional wire, it is not affected by adverse factors such as residual current and works more reliably. 7) Some manufacturers may simultaneously introduce the "normally open" and "normally closed" signals of proximity switches, or add functions. In this case, please wire according to the product manual. Baoji NYJ18G2-X3NF Waterproof and Oil proof Proximity Switch Shandong Zhuoxin Machinery Co., Ltd. is dedicated to win-win cooperation with foreign merchants, common development, and creating brilliance together! Shandong Zhuoxin Machinery Co., Ltd. is a company mainly engaged in industrial control electrical appliances, including proximity switches, photoelectric switches, Hall IC Hall switches, Hall components, two-stage deviation switches, bidirectional rope switches, speed monitors, belt slip switches, anti rotation material levels, belt longitudinal tear switches, mining magnetic wellbore switches, tilt switches, chute blockages, sound and light devices, limit switches, travel switches, elevator switches, elevator weighing sensors, solenoid valve coils, gear sensors, temperature resistant passive feedback sensors, cold and hot metal sensors, speed rotation monitoring sensors, speed sensors, proximity sensors, photoelectric sensors, contactless magnetic switches, magnetic proximity switches, belt conveyor control cabinets, etc. We collect and trial produce industrial control electrical appliances; Some product models of A Zhuoxin Electric Co., Ltd. include traffic signal lights; XT-22S
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