| 摘要 |
The circuit counts the multiplied encoder pulses generated between origin point signal, and compares with the reference signal after completing the count to discriminate the noise interference. In forward rotation of the encoder, the multiplied pulses of the econcoder is counted, compared with the preset reference pulse, to provide the matching signal. In reverse rotation, the preset data is reverse-calculated by the multiplied pulse. When the abnormal reference position signal is input, the abnormal state interfered by the noise is informed to the position feedback system.
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