| 摘要 |
PURPOSE:To reduce power loss and occurrence rate of troubles by conducting low, or high speed or accelerating or decelerating operation with an inverter power source, and executing a constant speed operation with a commercial power source. CONSTITUTION:Accelerating operations ranging a1-a5 are sequentially conducted with an inverter from the time of starting to an arbitrary maximum rotating speed. After it arrives at the maximum rotating speed, it is switched to a commercial power source, and operated in a range of b1-b5. When the inverter finishes the range of a5, it is then shifted to the range of a1', and similarly sequentially operated repeatedly. When the range of b1-b5 with the commercial power source is finished, it is switched to the inverter, and operated in a decelerating range of C1-C5. |
