JPS63171801U - - Google Patents
Info
- Publication number
- JPS63171801U JPS63171801U JP6206887U JP6206887U JPS63171801U JP S63171801 U JPS63171801 U JP S63171801U JP 6206887 U JP6206887 U JP 6206887U JP 6206887 U JP6206887 U JP 6206887U JP S63171801 U JPS63171801 U JP S63171801U
- Authority
- JP
- Japan
- Prior art keywords
- gain
- positioner
- signal
- switching
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Servomotors (AREA)
- Feedback Control In General (AREA)
Description
第１図は本考案の一実施例に係わる回路構成を
示すブロツク図、第２図は同実施例による効果を
説明するための信号波形図、第３図は従来のポジ
シヨナ切換えを説明するためのブロツク図である
。
２１ａ，２１ｂ……ゲイン設定器、２２……切
換器、２３……切換信号発生器、２４……ＰＩ制
御器。
FIG. 1 is a block diagram showing a circuit configuration according to an embodiment of the present invention, FIG. 2 is a signal waveform diagram for explaining the effects of the embodiment, and FIG. 3 is a diagram for explaining conventional positioner switching. It is a block diagram. 21a, 21b...gain setter, 22...switcher, 23...switching signal generator, 24...PI controller.
Claims (1)
から他方に切換える空気式調節弁のポジシヨナ切
換装置において、流量信号と設定値信号との偏差
信号に通常ゲインを掛ける第１のゲイン設定器と
、同偏差信号に上記通常ゲインより低いゲインを
掛ける第２のゲイン設定器と、上記第１のゲイン
設定器と上記第２のゲイン設定器とを選択する選
択器と、上記２重化されたポジシヨナの切換え時
点でのゲインを下げるように上記選択器を制御す
る切換信号を発生する切換信号発生回路とを具備
したことを特徴とする空気式調節弁のポジシヨナ
切換装置。 In a positioner switching device for a pneumatic control valve that switches the positioner of a duplicated pneumatic control valve from one to the other, a first gain setting device that multiplies a normal gain by a deviation signal between a flow rate signal and a set value signal; a second gain setter that multiplies the same deviation signal by a gain lower than the normal gain; a selector that selects between the first gain setter and the second gain setter; and the duplicated positioner. 1. A positioner switching device for a pneumatic control valve, comprising a switching signal generation circuit that generates a switching signal for controlling the selector to lower the gain at the switching point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6206887U JPS63171801U (en) | 1987-04-25 | 1987-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6206887U JPS63171801U (en) | 1987-04-25 | 1987-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171801U true JPS63171801U (en) | 1988-11-08 |
Family
ID=30895989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6206887U Pending JPS63171801U (en) | 1987-04-25 | 1987-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171801U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120378A (en) * | 1975-04-14 | 1976-10-21 | Toyoda Mach Works Ltd | Control device for linear servo motor |
| JPS6027901A (en) * | 1983-07-27 | 1985-02-13 | Mitsubishi Heavy Ind Ltd | Positioner switching device of control valve |
-
1987
- 1987-04-25 JP JP6206887U patent/JPS63171801U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120378A (en) * | 1975-04-14 | 1976-10-21 | Toyoda Mach Works Ltd | Control device for linear servo motor |
| JPS6027901A (en) * | 1983-07-27 | 1985-02-13 | Mitsubishi Heavy Ind Ltd | Positioner switching device of control valve |