HEDC-5520-H03

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Encoders are electronic components which are used to measure motion or position. With the ability to provide feedback on the motion or position of a machine, encoders can be used to regulate a process, improve machine accuracy and troubleshoot any problems. The HEDC-5520-H03 is a hollow shaft incremental photoelectric encoder, used to detect the angular displacement, frequency, and/or speed of rotary motors. In this article, we’ll discuss the application field and working principle of the HEDC-5520-H03.

The HEDC-5520-H03 is a durable and reliable encoder, suitable for a wide range of applications in various industries, including industrial automation, robotics, oil & gas, transportation and marine & aerospace. It is an ideal choice for applications that require reliable detection of angular displacement and/or speed in extreme environments, such as shipboard operations and high shock/vibration environments.

The HEDC-5520-H03 features a high resolution of 1024 pulses per revolution, a maximum speed of 8,000 rpm and a hollow shaft. It is made of machined stainless steel and is designed with IP67 protection to protect against airborne particles and water. The HEDC-5520-H03 also has an operating temperature range from –30°C to +85°C.

The working principle of the HEDC-5520-H03 is based on the principle of incremental rotary encoders. Incremental encoders measure the change in position by generating incremental pulses with a predetermined signal phase difference when rotating in theses direction. To measure angular velocity or speed, the encoder typically generates two electronic signals, the A signal and the B signal, which are separated by the predetermined phase difference. The number of pulses generated by these signals is proportional to the angular displacement of the motor or other rotating member, the direction of rotation and the speed of the motor.

The HEDC-5520-H03 is equipped with two opto-electronic pickup devices, one for each of the A and B signals. These opto-electronic pickups use infrared (IR) light-emitting diode (LED) devices which are connected to an external light source, in order to generate light for signal detection. The opto-electronic pickups are mounted on a tapered disk with a series of slits, which is mounted on the motor shaft. The light from the external source is reflected off the moving slits, which generates a series of pulses, which are then detected by the opto-electronic pickups.

The HEDC-5520-H03 uses a differential output signal, which provides a better resolution and signal integrity. Differential output allows for the use of longer cable runs and greater noise immunity. The differential output voltage is proportional to the input shaft position, allowing for precise measurements. The HEDC-5520-H03 also features an RS 422 output, which provides power and signal conditioning.

The HEDC-5520-H03 is a reliable and robust incremental photoelectric encoder, suitable for a wide range of applications in various industries. With its high resolution, maximum speed and differential output, it is well-suited for measuring angular displacement, frequency and speed of rotating motors in extreme environments. It is an ideal choice for applications that require reliable detection of angular displacement and/or speed.

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