| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent generation of misoperations of a system, by generation of alarms, when comparing the absolute value of R/D conversion value with A, B two-phase signals, if in the A, B two-phase signals, an error has been generated. <P>SOLUTION: The A, B two-phase signals diagnostic method in the servo driver is constituted by comparing the A, B two-phase signals (12), formed from the LSB (least significant bit) signal (10) of the R/D-converted digital signal (7), with the absolute value data (9) from the digital signal (7), if there are errors in the A, B two-phase signals (12), an alarm (24) is generated. <P>COPYRIGHT: (C)2008,JPO&INPIT |
