What is a wire-drawn encoder? Wire-drawn encoder 4-20mA and its application

What is a draw wire encoder? A draw wire encoder is a sensor device that is widely used in the industrial field. Its function is to convert mechanical motion into electrical signals in order to measure and monitor various parameters. The working principle of a draw wire encoder is based on the interaction between the draw wire and the encoder. The draw wire is connected to the object being measured and stretches or shortens as the object moves. This stretching or shortening movement is transmitted to the encoder, which monitors the parameters such as the position, speed or displacement of the object being measured by converting the movement into electrical signals.

In many industrial applications, draw wire encoders are often used to measure the height or position of equipment such as cranes, lifts and conveyors. By installing the draw wire encoder on these equipment and connecting it to the control system, the movement state of the equipment can be monitored and controlled in real time. This is essential to ensure the safety and normal operation of the equipment. For example, in crane applications, draw wire encoders can accurately measure the height of the hook to ensure the safe unloading and loading of goods.

The output of the wire-actuated encoder is usually in the form of a current signal, the most common of which is a 4-20mA current signal. This current signal has many advantages, such as strong anti-interference ability and long transmission distance. 4mA usually represents the minimum range, while 20mA represents the maximum range. By measuring the size of the current signal, the position or parameter value of the object being measured can be determined and passed to the corresponding control system for processing.

The process of using a wire-drawn encoder usually requires some setup and calibration steps. First, the appropriate wire-drawn encoder model and specifications need to be selected according to the actual application requirements. Then, the wire-drawn encoder is installed on the equipment to be monitored and connected to the corresponding control system. Next, a series of calibration and commissioning steps are carried out to ensure that the wire-drawn encoder can accurately measure and transmit the required parameter values. This includes setting the minimum and maximum range, adjusting the sensitivity and zero point, etc.

In conclusion, as an important sensor device, the draw wire encoder plays a key role in the industrial field. It measures and monitors various parameters by converting mechanical motion into electrical signals. By using 4-20mA current signal output, the draw wire encoder has the advantages of strong anti-interference ability and long transmission distance. Reasonable setting and calibration of the draw wire encoder, as well as proper calibration and debugging, can ensure its accuracy and reliability. In industrial applications, draw wire encoders are widely used in equipment such as cranes, lifts, conveyors, etc. to monitor and control parameters such as position, height or displacement. They play an important role in improving equipment operation efficiency, ensuring safe operation and optimizing production processes.