| 摘要 |
PURPOSE:To improve reliability relating to an abnormality process by providing an inverter, microcomputer, abnormality processing means for executing a predetermined interruption program to perform the abnormality process and an abnormality processing means for executing an inverter control program to perform the abnormality process. CONSTITUTION:Abnormality, when it is generated in a control circuit of an inverter for driving an electric motor, is detected by an abnormality detection holding circuit, and a BCUT1 output, which is a base cut off output, is output to the inverter via an abnormality processing program by a microcomputer. A signal SIGMAALARM from the abnormality detection holding circuit is fetched to an interruption control unit 44 of the microcomputer, and the BCUT1 output is output via an interruption program by the microcomputer and output to the inverter. A control current of the electric motor by the inverter is cut off by both these outputs. In this way, reliability relating to an abnormality process is improved. |
