2 wire sensors are commonly used in various industrial applications due to their simplicity and cost-effectiveness. These sensors are also known as NPN sensors or sourcing sensors, as they source current when the sensor detects an object or target. In this article, we will discuss the wiring diagram for 2 wire sensors and their functioning in detail.
Understanding the Wiring Diagram of a 2 Wire Sensor
The wiring diagram of a 2 wire sensor consists of two wires, namely power supply and signal output. The power supply wire is connected to the positive terminal of the power source, whereas the signal output wire is connected to the input of a controller or a device that receives the signal. This wiring diagram is quite simple and easy to understand.
However, it is essential to know the type of power supply that is required for the sensor to function efficiently. 2 wire sensors require a DC power source, typically in the range of 10-30V. The current required by the sensor is usually minimal, which makes it an energy-efficient option.
Another important aspect of the wiring diagram is the type of connector used to connect the sensor to the power source and the controller. 2 wire sensors typically have M12 or M8 connectors that facilitate easy connection.
Why M12 and M8 Connectors are Popular in 2 Wire Sensors?
M12 and M8 connectors are popular in 2 wire sensors due to their compact size, ruggedness, and reliability. These connectors are designed to withstand harsh environmental conditions and ensure a secure connection between the sensor and the devices.
M12 connectors are typically used for applications that require higher current ratings, whereas M8 connectors are suitable for applications that require lower current ratings.
How to Connect 2 Wire Sensors?
The process of connecting 2 wire sensors is relatively simple and straightforward. Follow the steps given below:
| Step 1 | Identify the power supply wire and the signal output wire of the sensor. |
| Step 2 | Connect the power supply wire to the positive terminal of the power source. |
| Step 3 | Connect the signal output wire to the input terminal of the device that receives the signal. |
| Step 4 | Ensure a secure connection by using M12 or M8 connectors. |
| Step 5 | Test the sensor to ensure that it is functioning correctly. |
FAQs
What is a 2 wire sensor?
A 2 wire sensor is a device that detects an object or target and sources current when the object is detected. It is called a 2 wire sensor as it has only two wires, namely power supply and signal output.
What type of power supply is required for a 2 wire sensor?
A 2 wire sensor requires a DC power supply typically in the range of 10-30V. The current required by the sensor is usually minimal.
What type of connector is used in 2 wire sensors?
2 wire sensors typically have M12 or M8 connectors that facilitate easy connection and ensure a secure connection between the sensor and the devices.
What are the advantages of using 2 wire sensors?
Some of the advantages of using 2 wire sensors include simplicity, cost-effectiveness, compact size, and energy-efficient operation.
What are the applications of 2 wire sensors?
2 wire sensors are commonly used in various industrial applications such as automation, manufacturing, packaging, and material handling.
In conclusion, 2 wire sensors are a simple and cost-effective option for various industrial applications. Their wiring diagram is relatively simple and easy to understand, and they require minimal current for operation. By following the steps mentioned above, you can easily connect and test a 2 wire sensor.
