| 摘要 |
To achieve miniaturization of a resolver apparatus as a sys tem, to obtain the resolver apparatus at a low cost, and to improve failsafe by installing an abnormality detection unit and a self-diagnosis circuit within the R/D converter. According to the present invention, an abnormality detecting method for an R/D converter in a resolver apparatus includes detecting abnormalities of at least the resolver itself (1), a cable wiring (2) through which the resolver (1) and the R/D converter (3) are connected to each other, and the R/D converter (3) itself by an abnormality detection unit (4) provided in the R/D converter (3). <IMAGE>
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