| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate any angular shift which occurs when an encoder is installed in an AC synchronous motor with accuracy, and correct the angular shift by software. <P>SOLUTION: An adjusting device for magnetic pole positions of AC synchronous motor is used in work of installing an encoder in an AC synchronous motor. During assembly and installation, the angular shift between the position of the origin of the magnetic poles of the AC synchronous motor, and the origin of the encoder is computed and stored in memory. Thereafter, the angular shift is corrected by software, and the magnetic pole positions are thereby adjusted. <P>COPYRIGHT: (C)2004,JPO |
