| 摘要 |
PURPOSE: To provide a method and a unit which receive a detection signal from a commutation sensor detecting the counter-electromotive force of an AC synchronous servo motor and generates a phase current instruction for commutation. CONSTITUTION: In a driver arrangement for an AC synchronous servo motor 10, a detection signal from a commutation sensor 20 for detecting the counter electromotive force of the motor 10 is fed to a microprocessor 30 which then delivers an interrupt signal for determining the current position of a sine wave pulse. The motor 10 is controlled by converting a data generating a sine wave through increase/decrease of encoder pulse into an analog data by means of a digital/analog converter 60. |
