| 摘要 |
In an inverter which implements drive control on a three-phase AC motor by detecting a first-phase current value and a second-phase current value among three-phase alternating current values with two current sensors, one of the current sensors is determined to be abnormal if one of the absolute value of the deviation of the first-phase current detection value relative to a first current command value and the absolute value of the deviation of the second-phase current detection value relative to a second-phase current command value exceeds a first judgement reference value while the three-phase AC motor is being driven.
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