| 摘要 |
PURPOSE:To obtain an abnormality detecting circuit for a motor through which a precise countermeasure can be taken quickly upon occurrence of abnormality in a motor by classifying the causes of abnormality in details. CONSTITUTION:When a motor 38 does not rotate, a CPU 40 in a control board 37 makes a decision in which of a motor drive board 33, a DC motor power supply circuit 31, a control board 37, and the motor 38 the cause of abnormality resides based on outputs from current detectors 32, 34, a clock turn back circuit 35, and the like. |
