| 摘要 |
PURPOSE: A method for inspecting an error of an inverter is provided to precisely inspect the error of the inverter by detecting overload and overheat of an inverter pump and an output frequency of an inverter section. CONSTITUTION: In an inverter mode, an error of an inverter section or an inverter pump is determined by detecting an abnormal signal transmitted from the inverter section(S1). If the inverter pump or the inverter section is normally operated, it is determined whether or not an operating frequency of the inverter pump calculated by an output frequency of the inverter section is in a normal state(S5). If the operating frequency of the inverter pump is in a normal sate, the inverter mode is maintained(S6). If the inverter pump or the inverter section is not operated properly or the operating frequency of the inverter pump is in an abnormal state, a sequential mode is carried out(S7).
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