| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controller which can be restarted as soon as possible even when rotation is stopped due to the occurrence of fluctuation of a large load torque.SOLUTION: A control circuit calculates the rotational speed (ω) of a drum motor at the timing (S1:YES) when sensor signals Hu, Hv, Hw outputted from a plurality of Hall sensors change (S4) and exerts speed control by controlling a current supplied to each phase winding of the drum motor based on the rotational speed (ω) (S5). When a state that the sensor signals Hu, Hv, Hw do not change continues for a predetermined monitoring time or more (S8:YES), the amount of the currents supplied to the windings is increased more than the existing control value (S10). |
