H25D-SS-2048-ABC-28V/V-TB

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Encoders

An encoder is an electrical device that converts motion or mechanical position into an encoded digital form, typically as a binary output. This encoded output is often referred to as “ticks” or “counts.” In automation systems, the encoder is a critical component in providing feedback on the motion or position of the axis. The feedback signal can be used to provide closed-loop control for a motor.

Encoder technology comes in many types—optical, magnetic, and hall-effect. Optical encoders are very common and are the most accurate due to diffraction or scatter of light.

H25D-SS-2048-ABC-28V/V-TB is an incremental rotary optical encoder and is suitable for applications which require basic position sensing, coupling to motor shafts, motion control and low speed motion sensing. It is a high resolution encoder, with a maximum speed of 14,400 pulses per rev, providing 2048 pulses or counts per revolution of an output shaft. It is a non-contact sensing device, so it offers high reliability and long life.

The H25D-SS-2048-ABC-28V/V-TB encoder consists of a disk-shaped optical code wheel mounted on a rotating shaft. The code wheel has two layers of transparent etched marks—an inner ring and an outer ring. As the code wheel turns, two light sources, consisting of infrared LEDs, illuminate the code wheel. An integrated photodiode in the encoder senses the light passing through the code wheel, and produces digital output signals “A”, “B” and “Z”. The output signals change state (from high to low) for every position and direction of the rotating encoder shaft.

The two channel digital output “A” and “B” provide two set of modulation signals. The signal pair “A” and “B” generate the number of pulses per revolution. This is how the encoder transmits the position information. The pulse repetitions from signal “A” and “B” make it possible to determine a precise position in digital form, at any given time and clockwise or counter-clockwise rotation. These features make the H25D-SS-2048-ABC-28V/V-TB an ideal choice for applications that require precise speed and position sensing.

Due to its robust construction and design, the H25D encoder is suitable for a wide range of markets, including medical, industrial, aerospace and defense, automotive and communications. It is often used in applications such as robotic arm control, valve and valve position feedback, robotics, motors, VFD and CNC machines, automotive control systems and performance mechatronic systems, material handling, switching, and machine tools.

In summary, the H25D-SS-2048-ABC-28V/V-TB is a high resolution encoder with a maximum of 2048 pulses or counts per revolution of an output shaft. Its two channel digital output signals “A” and “B” generate pulses per revolution and provide precise position information. This encoder is ideal for a wide range of applications, including motion control, robotics, and machine tools. This makes it a popular choice for many industries.

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