| 摘要 |
PURPOSE:To eliminate an idle time in a shut-down stare by isolating the output of a recording controller from an operation terminal in the shut-down state and by generating an output signal, breaking from the output level of the recording controller with a prescribed gradient, by using an integrator and then supplying it to the operation terminal. CONSTITUTION:When an up signal turn on and off, the terminals (c) and (b), and (c) and (a) of a switch S1 are connected to each other respectively and when a following down signal turns on and off, the terminals (f) and (e), and (f) and (d) of a switch S2 are connected to each other. When the down signal turn on, an output K2 with the opposite polarity from a constant output generator 7 is integrated by an integrator 4, instead of the output DELTAWV of a recording controller 2 as the arithmetic value of the deviation between a target value SV and an actual value PV, and the resulting signal is supplied to an operation terminal. The manipulated variable MV, therefore, breaks from the output DELTAMV of the recording controller 2 up to the point in time at a constant variation rate. Since a selector 8 is set as MV>K3, it outputs the MV normally, but generates an output of the constant K3 by the high selector 3 when it requires the output of the constant K3. |
