| 摘要 |
An inverter apparatus in which a control power source connected to a microcomputer or a peripheral circuit included in at least one of an inverter main body, a built-in option, and a parameter unit is provided in the inverter main body. The apparatus has an external-power-unit connector via which an external power unit can be connected to at least one of the inverter main body, the built-in option, and the parameter unit. The external power unit connected to the external-power-unit connector is configured to function as a power source that controls the microcomputer or the peripheral circuit included in at least one of the inverter main body, the built-in option, and the parameter unit.
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