| 摘要 |
A motor control circuit controls motor operation according to an input voltage and a control parameter. A voltage abnormality detection unit detects an abnormality of the input voltage by comparing the input voltage with an allowable voltage range. A memory stores a plurality of allowable voltage range candidates corresponding to a plurality of reference voltages and a plurality of control parameter candidates corresponding to the reference voltages. A reference voltage acquiring unit acquires reference voltage information for specifying one reference voltage from among the plurality of reference voltages. Based on the reference voltage information, a selector selects, as an allowable voltage range, the allowable voltage range corresponding to the one reference voltage from among the plurality of allowable voltage range candidates and selects, as a control parameter, the control parameter corresponding to the one reference voltage from among the plurality of control parameter candidates. |
