JPH0467701U - - Google Patents
Info
- Publication number
- JPH0467701U JPH0467701U JP10933690U JP10933690U JPH0467701U JP H0467701 U JPH0467701 U JP H0467701U JP 10933690 U JP10933690 U JP 10933690U JP 10933690 U JP10933690 U JP 10933690U JP H0467701 U JPH0467701 U JP H0467701U
- Authority
- JP
- Japan
- Prior art keywords
- section
- current
- input
- signal
- potentiometer
- 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.)
- Granted
Links
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Feedback Control In General (AREA)
Description
第１図は、本考案に係る制御器のブロツク線図
である。第２図は、本考案に係る制御器の回路図
である。第３図Ａ及び第３図Ｂは三線式定電圧駆
動型ポテンシヨメータの結線図及びフイードバツ
ク信号Ｆを示すものである。第４図は、制御器を
備えた自動制御弁の制御システムを示すものであ
る。第５図は、従前の制御器のフイードバツグ部
の回路図である。第６図Ａ及び第６図Ｂは二線式
定電流駆動型ポテンシヨメータの結線図及びフイ
ードバツク信号Ｆを示すものである。
１……制御器、２……リニアソレノイド、３…
…ステム、４……制御弁、５……リニアポテンシ
ヨメータ、５ａ……接触子、５ｂ……フイードバ
ツク回路、５ｃ……コイル抵抗、６……入力部、
７……フイードバツグ部、７ａ……定電流部、７
ｂ……増幅部、８……比較部、９……ＰＩＤ増幅
部、１０……デイザー発振部、１１……パルス幅
変調部、１２……ソレノイド駆動部、１３……電
源部、Ｓ……入力操作信号、Ｆ……フイードバツ
グ信号、ＩＬ……ソレノイド駆動電流、Ｉｐ……
ポテンシヨメータのコイル電流。
FIG. 1 is a block diagram of a controller according to the present invention. FIG. 2 is a circuit diagram of a controller according to the present invention. 3A and 3B show a wiring diagram and a feedback signal F of a three-wire constant voltage drive type potentiometer. FIG. 4 shows a control system for an automatic control valve equipped with a controller. FIG. 5 is a circuit diagram of a feedback section of a conventional controller. 6A and 6B show a wiring diagram and a feedback signal F of a two-wire constant current drive type potentiometer. 1... Controller, 2... Linear solenoid, 3...
... Stem, 4... Control valve, 5... Linear potentiometer, 5a... Contact, 5b... Feedback circuit, 5c... Coil resistance, 6... Input section,
7... Feed bag section, 7a... Constant current section, 7
b...Amplification section, 8...Comparison section, 9...PID amplification section, 10...Dither oscillation section, 11...Pulse width modulation section, 12...Solenoid drive section, 13...Power supply section, S... Input operation signal, F...Feedback signal, IL...Solenoid drive current, Ip...
Potentiometer coil current.
Claims (1)
流部７ａと増幅部７ｂとから成り、制御弁４のス
テム３と連動する接触子５ａを通して定電流部７
ａからポテンシヨメータ５へ電流Ｉｐを供給する
と共に、接触子５ａを切換えスイツチ１６を通し
て増幅部７ｂへ接続することにより、また、前記
切換えスイツチ１６をｏｆｆにした場合には、定
電流部７ａからポテンシヨメータ５のコイル抵抗
５ｃの一端側へ電流Ｉｐを供給すると共に、接触
子５ａを直接に増幅部７ｂへ接続することにより
、ポンシヨメータ５からのフイードバツグ信号Ｆ
を増幅部７ｂへ入力するフイードバツグ部７と；
前記入力部６からの入力操作信号Ｓとフイードバ
ツグ部７からのフイードバツグ信号Ｆを比較する
比較部８と；比較部８からの出力信号Ｒを増幅す
るＰＩＤ増幅部９と；ＰＩＤ増幅部９からの出力
信号Ｕによりデイザー発振部１０からのパルス入
力Ｑを変調するパルス幅変調部１１と；パルス幅
変調部１１からの出力信号Ｔにより制御弁４の駆
動用ソレノイド２へ駆動電流ＩＬを供給するソレ
ノイド駆動部１２と；直流電源を供給する電源部
１３とより構成した制御器。 It consists of an input section 6 into which the input operation signal S is input; a constant current section 7a and an amplification section 7b;
By supplying a current Ip from a to the potentiometer 5 and connecting the contact 5a to the amplifying section 7b through the changeover switch 16, when the changeover switch 16 is turned off, the current Ip is supplied from the constant current section 7a. By supplying a current Ip to one end of the coil resistance 5c of the potentiometer 5 and connecting the contact 5a directly to the amplifier 7b, the feedback signal F from the potentiometer 5 is
a feed bug section 7 which inputs the signal to the amplification section 7b;
a comparison section 8 that compares the input operation signal S from the input section 6 and the feedbag signal F from the feedbag section 7; a PID amplification section 9 that amplifies the output signal R from the comparison section 8; a pulse width modulation section 11 that modulates the pulse input Q from the dither oscillation section 10 using the output signal U; and a solenoid that supplies a drive current IL to the drive solenoid 2 of the control valve 4 based on the output signal T from the pulse width modulation section 11. A controller composed of a drive section 12 and a power supply section 13 that supplies DC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109336U JP2559164Y2 (en) | 1990-10-17 | 1990-10-17 | Controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109336U JP2559164Y2 (en) | 1990-10-17 | 1990-10-17 | Controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0467701U true JPH0467701U (en) | 1992-06-16 |
| JP2559164Y2 JP2559164Y2 (en) | 1998-01-14 |
Family
ID=31856523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990109336U Expired - Fee Related JP2559164Y2 (en) | 1990-10-17 | 1990-10-17 | Controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2559164Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565506U (en) * | 1978-10-30 | 1980-05-06 | ||
| JPS6415507A (en) * | 1987-07-07 | 1989-01-19 | Mitsubishi Electric Corp | Electronic controller for flow control valve |
-
1990
- 1990-10-17 JP JP1990109336U patent/JP2559164Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565506U (en) * | 1978-10-30 | 1980-05-06 | ||
| JPS6415507A (en) * | 1987-07-07 | 1989-01-19 | Mitsubishi Electric Corp | Electronic controller for flow control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2559164Y2 (en) | 1998-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |