| 摘要 |
PURPOSE:To avoid troubles in sudden change of control conditions by slowly changing the control state even when the changing width is large when the constants of control operation is set and changed during operation by providing cushion processing parts in the output stage of an input-data processing and operating part. CONSTITUTION:When the various kinds of constants for control operation are set and changed during operation, the operator inputs the setting and changing values from a digital setting device 5. The setting and changing values are processed with an input-data processing and operating part 6. The values are outputted into the specified respective operating parts, i.e., a speed-control operating part 1, a vector-control operating part 2 and a PWM operating part 3. At this time, relaxation processing is performed with cushion processing parts 62-l, 62-2 and 62-3. The output value, which is outputted into each operating part, is gradually changed. Even if the changed width of the setting and changing value is large, the control-state is smoothly changed. Therefore, the operator can set the value into the digital setting device 5 without special consideration for the magnitude of the changed width when the setting and changing values are inputted. |
