| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary encoder for identifying the cause of anomaly occurrence in a short period of time. SOLUTION: This encoder is equipped with an original signal part 11 for outputting rotary position data on a motor, a status detection part 12 for detecting anomaly in the signal part 11, a storage part 14 for holding data of the detection part 12, and a data communication part 15 for transmitting/receiving data in the signal part 11 and storage part 14. When the detection part 12 detects an anomaly, information expressing the anomaly at the time point is stored by the storage part 14. Data in the storage part 14 is read out in answer to a request signal from the exterior. COPYRIGHT: (C)2004,JPO
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