WL12L-2B520

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WL12L-2B520 application field and working principle

Optical sensors are an important tool in industrial automation, used to detect the presence or absence of objects and provide accurate positioning. The WL12L-2B520 from Panasonic is a small, compact, light-emitting type photoelectric object sensor that offers users a range of features and options. This article looks at the applications and working principle of the WL12L-2B520.

Applications of the WL12L-2B520

The WL12L-2B520 can be used for a wide range of industrial automation applications, including:

• Product positioning: The sensor can be used to accurately position products as they pass through production lines.
• Sensing materials: The sensor can be used to detect the presence or absence of materials or objects on a conveyor belt.
• Security applications: The sensor can be used for intruder or burglar detection.
• Control systems: The sensor can be used to control the flow of materials or products through an automated system.

Working principle of the WL12L-2B520

The WL12L-2B520 is a photoelectric object sensor that uses infrared light-emitting diode (LED) to detect the presence or absence of objects. The sensor emits a beam of infrared light, which when reflected off an object is detected by the unit. Depending on the object detected, the WL12L-2B520 can provide a switched output that is open-closed or high-low.

The photoelectric object sensor has two different operating modes. In the first mode, the sensor will detect objects in front of the LED and actuate the output. In the second mode, the sensor will actuate the output when the LED is blocked or shielded from the infrared light, and the output will remain open or high.

The WL12L-2B520 also features a selectable light-off delay, allowing users to adjust the delay time before actuation of the output. This feature is useful in applications where the presence or absence of an object may be ambiguous or detecting objects close together. The output can also be tweaked to respond in either normally open (NO) or normally close (NC) mode.

Conclusion

The WL12L-2B520 from Panasonic is a small, light-emitting type photoelectric object sensor that can be used for a variety of industrial automation applications. Using infrared light-emitting diode (LED), the sensor can accurately detect the presence or absence of objects and provide switched output, allowing users to control the flow of materials or products through an automated system. The WL12L-2B520 provides users with a range of options and features, making it a highly capable and versatile optical sensor.

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