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　　Rotary encoder applications it will output pulse signal input connected to the PLC, use PLC high-speed counter to count their pulse signals to obtain measurement results.
　　Then the rotary encoder connected with the process of the PLC needs to pay attention to what the problem?
　　Typically, the power supply will be the three encoding: 5Vdc, 5-13 Vdc, 11-26Vdc.
　　If you buy the encoder is 11-26Vdc, you can use the PLC's 24V power supply.
　　Rotary encoders and PLC in the connection process, note the following three points:
　　1. The current consumption of the encoder, attention must be within range of the PLC power supply.
　　2. The case of the parallel encoder output, the I / O points PLC, the need to understand the encoder signal levels are push-pull (or push-pull) output or open collector output? If so open-collector output, there are N type and P-type two, to be with the PLC I / O of the same polarity. The case of push-pull outputs are connected without any problems.
　　3. The driver output encoder case, the general signal level is 5V, the connection time to be careful not to let the 24V supply level series with the signal wiring 5V signal terminal damage to the encoder.
　　Guangdong Granville Electronics Co., Ltd. R & D since 1991, the production of the rotary encoder 25 years, a professional R & D team, advanced testing and production equipment, the industry's first lead trusted by TS16949 ISO14001 ISO9001 certified company, quality, and look forward and you win!