Inductive sensor M8 for welding process 60 mm connector M8 NPN NC Sn = 2 mm

The NWI08112 inductive sensor for the welding environment ensures reliable detection of metal objects even under the strong electromagnetic interference generated during the operation of welding equipment.

Because of its small M8 size, the sensor does not interfere with welding equipment mounted in its immediate vicinity, Ø8 x 60 mm are proportions that ensure stable detection even under the vibration generated by a resistance-welding machine.

Technical specification:

• Diameter: M8, the smallest size in this line, good for tight spaces in spot welding
• Length: 60 mm, an extended housing that provides extra mounting rigidity under harsh welding conditions
• Detection range: 2 mm, stable metal-detection characteristics even close to a resistance-welding machine's electromagnetic field
• Housing: Threaded, a threaded housing allows precise adjustment of the sensor's position relative to the weld point
• Housing material: Brass with PTFE coating, a PTFE layer on the brass housing reduces weld spatter sticking to the sensor's surface
• Sensor face material: PTFE, the PTFE material keeps detection parameters stable even after repeated contact with spatter
• Mounting: Non-flush mounting, the non-flush version makes use of the full detection range, useful with larger welded parts
• Switching function: normally closed (NC), NC logic detects a missing part as an active signal, which makes it easier to control the resistance-welding process
• Output type: NPN, an NPN output compatible with the controllers commonly used in welding automation
• Connection: with a M8 plug connector, the plug connector simplifies servicing on the production line, reducing downtime at the resistance-welding station
• Supply voltage: DC 10-30V, a typical industrial automation supply voltage, with no need for additional converters
• Electromagnetic interference (EMC) resistance: yes, a stable output signal even in the immediate vicinity of the strong electromagnetic fields present during welding
• Catalog number: W1CN-M0802N-CPU3

Applications

• It is a component of welding process control systems and resistance welding process control systems, confirming the presence and position of parts.
• It is used in automated welding systems and automated resistance welding systems operating continuously.
• It performs well in robotic welding systems and robotic welding lines, where robots operate without constant operator supervision.
• It supports the operation of smart welding lines and smart welding stations integrated with higher-level control systems.
• It is used within the Industry 4.0 concept in welding and resistance welding, where sensor data feeds into production monitoring systems.

Benefits/Features

• It is suited to operation in a strong electromagnetic field, typical of resistance welding and arc welding.
• Its proven EMC resistance is valued by integrators building EMC-resistant industrial sensors for welding and resistance-welding applications.
• Thanks to its high resistance, it performs well in environments with high levels of electromagnetic interference, such as those generated by welding machines.
• It can be used as a welding machine sensor resistant to interference and a resistance welding machine sensor resistant to electromagnetic interference.
• It maintains signal stability as a welding sensor resistant to electromagnetic interference, reducing the number of false detections.

When to choose this model

• When a sensor is required for a welding machine that must withstand the influence of the process environment.
• When the model is to be used in a robotic resistance-welding process.
• When the sensor must work together with a welding station's automation system.
• When part-presence monitoring is needed within an automatic welding cycle.

Connection

The sensor has an NPN output, so connect it with an M8 3-pin connection cable without LEDs. Cables with LEDs (NXOC08261…, NXOC08121…) have a yellow status LED wired for a PNP output and are not suitable for NPN sensors.