旋转编码器应用注意事项（Application points of rotary encoder）.doc

旋转编码器应用注意事项（Application points of rotary encoder） Rotary encoder application notes,.Txt with joy to run, attentively listen to, use thinking to develop, with the effort to struggle, with the target to measure, use love to live. More money, less money, often good! It is better to be young and healthy! His home is rich, harmonious. Application points of rotary encoder One should pay attention to three aspects. The parameters of the incremental rotary encoder selection: 1., installation size, including location, stop, shaft diameter, installation hole position, cable outlet mode; installation space volume; work environment protection level meets the requirements. 2. resolution, that is, when the encoder works, the number of pulses per turn, whether to meet the design requirements for accuracy. 3. electrical interface, common mode push-pull encoder output output (HTL F), the output voltage (E), open collector (C, common C type NPN C2 PNP type output tube tube output, line driver output). The output mode shall be matched with the interface circuit of its control system. - two. The netizen asked: how to use incremental encoder? 1, the incremental rotary encoder has resolution differences, measured by the number of pulses generated per cycle, and the number of pulses from 6 to 5400 or higher, the higher the number of pulses, the higher the resolution. This is one of the important foundations of the selection. 2, the incremental encoder usually has three signal output (difference six signals): A, B and Z, with TTL level, A pulse before and after B in A, B pulse, the pulse is 90 degrees, each ring sends a Z pulse, can be used as reference for mechanical zero. Generally use A advanced B or B ultrasound before A to judge, our company incremental encoder is defined as axis end, encoder clockwise rotation is positive, A advance B is 90 degrees, otherwise counterclockwise rotation is reversed, B ultrasonic before A is 90 degrees. There are also different, depending on the product