Proximity Sensor LJ30A3-15-J/EZ220VAC Overview: A proximity switch is a position switch that can be operated without the need for mechanical contact with moving parts. When an object approaches the sensing surface of the switch to the operating distance, no mechanical contact or pressure is required to activate the switch, thereby driving AC or DC electrical appliances or providing control instructions to computer devices. Proximity switch is a type of switch type sensor (i.e. contactless switch) that has the characteristics of travel switch and micro switch. It also has sensing performance, reliable operation, stable performance, frequency response, long application life, strong ability, and is waterproof, shockproof, and corrosion-resistant. Proximity switch, also known as contactless proximity switch, is an electronic switch quantity sensor. When the metal detection body approaches the sensing area of the switch, the switch can quickly issue electrical commands without contact, pressure, sparks, and accurately reflect the position and travel of the moving mechanism. Even when used for general travel control, its positioning, operating frequency, service life, convenience of installation adjustment, and adaptability to harsh environments are incomparable to general mechanical travel switches. It is widely used in industries such as machine tools, metallurgy, chemicals, light textiles, and printing. It can be used as a limit, counting, positioning control, and automatic protection link in automatic control systems. Proximity switches have the characteristics of long service life, reliable operation, repeated positioning, no mechanical wear, no sparks, no noise, and strong vibration resistance. The main functions of proximity sensor LJ30A3-15-J/EZ220VAC are: 1. Check the distance, detect the stop, start, and pass positions of elevators and lifting equipment; Detecting the position of the vehicle to prevent collision between two objects; Check the set position of the working machinery and the limit position of the moving machine or component; Detect the stop position of the rotating body and the open or closed position of the valve. 2. Size control device for metal plate punching and shearing; Automatically select and identify the length of metal parts; Detect the height of the stack during automatic loading and unloading; Detect the length, width, height, and volume of items. Check for the presence of objects, check for product packaging boxes on the packaging line; Check for product parts. 3. Speed and speed control control the speed of the conveyor belt; Control the rotational speed of rotating machinery; Control the speed and number of revolutions together with various pulse generators. 4. Counting and controlling the number of products passed by the detection line; Measurement of the number of revolutions of a high-speed rotating shaft or disc; Component count. 5. Detect anomalies and check if the bottle cap is present; Product qualification and non conformity judgment; Check if there is a lack of metal products inside the packaging box; Distinguish between metallic and non-metallic parts; Whether the product has a label inspection; Crane danger zone baojing; Anquan escalator automatically starts and stops. 6. Automatic measurement of measurement control products or parts; Control the number or flow rate by detecting the pointer range of measuring instruments and meters; Detecting buoys to control the height and flow rate of the measuring surface; Detecting iron buoys in stainless steel drums; Control of the upper or lower range of the instrument; Flow control, horizontal control. 7. Identify objects based on the code on the carrier to identify right and wrong. 8. The information transmission ASI (bus) connects sensors at various positions on the device, and transmits data back and forth in the online range (50-100 meters). nine hundred