Sick 1220139 Central control module

Sick 1220139 Overview

The Sick 1220139 corresponds to the model WL12G-3P2431A photoelectric sensor. This is a miniature photoelectric diffuse sensor belonging to Sick's WL12G series. It is commonly used for detecting the presence or absence of objects, offering reliable performance and ease of installation.

Product Detailed Description

• Function:

• Detects the presence or absence of objects.

• Diffuse principle: the sensor emits light, and the output signal changes when the light is reflected back by an object and received by the sensor.

• This model typically has a fixed sensing range.

• It usually features a PNP normally open (NO) output.

• Equipped with an M12 connector for easy electrical connection.

• Features:

• Miniature design, saving installation space.

• Visible red light emitter for easy alignment.

• Rugged ABS and PC housing, suitable for industrial environments.

• High reliability, strong resistance to interference.

• LED indicators for power status and signal output status.

Product Parameters

• Model Name: WL12G-3P2431A

• Part Number: 1220139

• Sensor Principle: Photoelectric diffuse sensor

• Sensing Range: 0.05 m ... 0.5 m (depending on object reflectivity)

• Light Source: Visible red light LED

• Light Spot Size: Ø 18 mm (at 0.5 m)

• Supply Voltage: 10 V DC ... 30 V DC

• Output Type: PNP

• Output Function: Normally Open (NO)

• Switching Frequency: 1000 Hz

• Connection Type: Connector M12, 4-pin

• Enclosure Rating: IP67

• Housing Material: ABS, PC

• Ambient Temperature: -25 °C ... +55 °C

• Weight: Approx. 60 g

Product Advantages

• Miniature Design: Suitable for applications with limited installation space.

• Easy Alignment: Visible red light facilitates sensor alignment with the target object.

• High Reliability: Provides stable detection performance in various industrial environments.

• Robust and Durable: ABS and PC housing offers good mechanical protection.

• Clear Status Indication: LED indicators allow easy monitoring of the sensor status.

• Standard M12 Connection: Simplifies electrical connection and replacement.

Precautions

• Correct Installation: Install and secure the sensor according to the instructions in the product manual, ensuring stability and an unobstructed detection zone.

• Power Connection: Ensure the power supply voltage is within the allowable range and connect the power and signal wires correctly according to the pin assignment.

• Environmental Conditions: Avoid using the sensor in environments exceeding its operating temperature range.

• Target Object Characteristics: The sensor's sensing range is affected by the color, reflectivity, and size of the target object. Ensure the target object is within the sensor's effective sensing range.

• Regular Cleaning: Regularly clean the optical surface of the sensor to ensure detection accuracy is not affected by dust or dirt.

Product Applications

The Sick WL12G-3P2431A (1220139) photoelectric sensor is widely used in various industrial automation fields, including but not limited to:

• Packaging Machinery: Detecting the presence and position of packaging materials or products.

• Conveyor Technology: Detecting objects on conveyor belts, counting.

• Material Handling: Detecting the presence of parts and workpieces.

• Automated Assembly: Detecting whether components are in place.

• Access Control: Detecting the passage of people or objects.

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