| 摘要 |
PURPOSE:To grasp the integrating value of input power, the integrating value of output power, and the change rate of a process value on the process side at the same time, by arranging an input integrating power meter and an output quantity integrating meter. CONSTITUTION:By an input integrating power meter 2, the output of a transformer 3 and an input current transformer 4 is integrated, and an integrated value is indicated and recorded. By an output quantity integrating meter 5, the output frequency of an inverter controller 11 and the output of an output current transformer 6 are integrated, and the integrated value is indicated and recorded. Besides, by the output quantity integrating meter 5, the output of a process value current converter 13 is integrated, and the integrated value namely process value is indicated and recorded. As a result, the optimum control of the rotating speed of an AC motor and a process quantity on tile process side are easily found out, and an energy-saving-effective quantity can be known. |
