| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor control apparatus capable of improving reliability of a current sensor-monitoring function.SOLUTION: In a motor control apparatus, a diagnosis part D1 detects abnormality of a current sensor CT2 on the basis of a current value I23 detected by the current sensor CT2 and a calculated current value I13, and detects abnormality of a diagnosis part D2 on the basis of a current value I12 detected by a current sensor CT1 and a current value I22 calculated by the diagnosis part D2. Similarly, the diagnosis part D2 detects abnormality of the current sensor CT1 on the basis of the current value I12 detected by the current sensor CT1 and a calculated current value I22, and detects abnormality of the diagnosis part D1 on the basis of a current value I23 detected by the current sensor CT2 and the current value I13 calculated by the diagnosis part D1. Therefore, the motor control apparatus has a mutual monitoring function for monitoring the current sensor CT1 by the diagnosis part D2 and monitoring the current sensor CT2 by the diagnosis part D1 and has a diagnosis function for monitoring a state of the diagnosis part for monitoring the current sensor by the diagnosis part included in the other inverter. |
