DP12H1212A20F

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Encoders: DP12H1212A20F Application Field and Working Principle

Encoders are an essential component in mechanical measure and control, providing input for feedback control systems by transmitting signals indicating direction and speed. The DP12H1212A20F encoder, a rotary encoder with integral bearing, is an example of a commonly used encoder. It is built for ruggedness and reliability, and has a wide range of applications.

Application of DP12H1212A20F Encoder

The DP12H1212A20F encoder is well-suited for speed and direction control in industrial machinery and food & packaging machinery. It is often used in motor drives, servo systems, measurement equipment, medical instrumentation, commercial machine tool, animated signs, robotic control, and other such systems.

Each individual rotary encoder module is designed for flexibility and is available with standard and custom shaft configurations to offer multiple mounting styles. The housing and potentiometer are all sealed to IP65 standards for protection from dust and moisture, making it highly durable and ideal for use in harsh conditions.

Working Principle of DP12H1212A20F Encoder

The DP12H1212A20F is a type of incremental rotary encoder; it produces a digital signal as its output. The encoder generates output pulses in the form of a square wave as it is rotated. The signal is continuously generated in the forward or reverse direction of rotation, and has two components: an A signal and a B signal.

The A signal is generated by an accelerometer or switch that produces a pulse whenever the encoder is rotated in a clockwise or counter-clockwise direction. The B signal is generated by a fixed reference point which is mounted onto a circular ring. When the ring is rotated, a magnetic field is created through Hall effect devices resulting in the generation of a second pulse.

The two signals are then compared to determine the direction and rate of motion of the encoder. The direction and distance of motion of the encoder are determined by counting the pulses generated by each signal and comparing the count to determine the direction of motion. The resolution of the encoder depends on the number of pulses generated per revolution.

The encoder is also fitted with two mechanical stops. One is located at the origin and the other at the maximum interval, and are used to limit the range of motion of the encoder to a pre-defined area. When the encoder reaches one of the mechanical stops, the output signal will be in its initial state.

Conclusion

The DP12H1212A20F encoder is a robust and reliable incremental rotary encoder, providing precise and reliable motion control for a wide range of industrial and commercial applications. Its simple design and durability make it an ideal choice for any motor drive and motion control application.

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