| 摘要 |
PURPOSE:To exclude influence of output from other processing equipment by using a switching circuit in place of an adding circuit of a control device and, at each time of operation and renewal of opening regulation command by means of each digital operation processing equipment, amplifying each of said regulation command as it is to turn it into a valve driving signal. CONSTITUTION:A valve opening control section 3 is provided with the plural number of digital operation processing equipments 31 which input a valve opening command c and each actual opening signal from a valve opening detector 7 for the plural number of valves 6 and further input each opening regulation command into the plural number of valves 6 in order. Further, the plural number of switching circuits 34 are provided which switch the opening regulation command at each time of input and send it out as an opening regulation command signal. Thus, influence of output of other digital operation processing equipments 31 is excluded, and responsiveness as well as reliability may be improved. |
