| 摘要 |
<P>PROBLEM TO BE SOLVED: To exhibit performance of a motor and inverter to maximum by preventing an overload protection function of the motor and inverter from operating under a high load. <P>SOLUTION: The limit level of output current is set in two ways. The output current is limited to a first limit level when the value of electronic thermal used for overload protection of the motor and inverter is equal to the preset value or less, and the output current is limited to a second limit level when the value of electronic thermal exceeds the preset value, and then it is limited to the first limit level again when the value of electronic thermal falls to be a nominal value or less. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
