| 摘要 |
<p>PURPOSE:To shorten time required for the inspection and repairment of a control system unstabilizing phenomenon by comparing an output signal component obtained by forecasting with an output signal component obtained by an analysis, deciding the state as an abnormal state when a deviation exceeds a prescribed value, and displaying the abnormal state. CONSTITUTION:The input signal components and output signal components of respective control elements are found out by analyzing the output signal of a detecting part 10 for detecting the inputs and outputs of respective control elements whose transmission characteristics are previously grasped and the output signal components of respective control element are forecasted based on the input signal components and transmission characteristics. The output signal components obtained by the forecasting are compared with that found out by said analysis, and when a deviation exceeds a prescribed value, abnormality is decided, a signal indicating the abnormal position and an alarm signal are outputted from an operation part 20 and the abnormal state is displayed and the alarm signal is generated from an output part 30. Consequently, the time required for the inspection and repairment of the control system unstabilizing phenomenon can be sharply shortened.</p> |
