| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor drive unit which can automatically set initialization of a magnetic pole position signal.SOLUTION: The motor drive unit includes a torque command generator 1, a magnetic pole position setter 2, a CS-signal direction setter 3 as a detection direction setter, a detection direction switch 4 and a current controller 5. The motor drive unit performs rotary-drive control of a synchronous motor 30 to rotate the rotor of a motor 30. Furthermore, a magnetic pole sensor 31 is fitted to the motor 30. The magnetic pole sensor 31 outputs a magnetic pole position signal to the motor drive unit according to the magnetic pole position of the rotor, in response to a rotary movement of the motor 30. |
