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Encoders

62A18-02-P application field and working principle

e 62A18-02-P encoder is an absolute rotary encoder designed for industrial automation applications. It can be used as an input module for position control in industrial robots for data collection and analysis. It is capable of accurately detecting angular rotation and direction without having to re-learn the original position after power failures.

The 62A18-02 has dual output channels, providing both SSI and RS485 serial protocols with data rates up to up to 37.5 kbit/s. The resolution of the encoder is 18-bit, and it is capable of support up to 2048 counts per rotation. The 62A18-02 is compliant with RoHS Directive 2011/65/EU, and compatible with temperatures ranging from -20°C to + 80°C. Moreover, the 62A18-02 is IP67 rated, making it rugged enough for all industrial environments.

The 62A18-02-P utilizes optical scanning technology to detect the mechanical movement of the encoder’s shaft. The shaft is cautiously engineered from a aerospace grade aluminum alloy with a precise profile and an embedded groove. A emitter diode located within the encoder generates infrared radiation, and the rotating shaft contains two equally spaced discrete optical sensors. As the shaft rotates, the emitter diode’s emission passes through the groove and is split onto the dual sensing elements. The impact that the emitted radiation has on the dual sensing elements is greatly affected by how far the groove is positioned in relation to the two sensors. This displacement of radiation is what is measured as encoder output signals.

The 62A18-02-P is designed to meet and exceed the requirements of virtually all industrial automation applications. Its easy setup and high accuracy are what make it the number one choice for position control in industrial robotics. Its compliance with RoHS and temperatures ranging from -20 to +80°C enable the 62A18-02 to be used in a broad range of industrial and laboratory environments.

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