JPS61141801U - - Google Patents
Info
- Publication number
- JPS61141801U JPS61141801U JP2446185U JP2446185U JPS61141801U JP S61141801 U JPS61141801 U JP S61141801U JP 2446185 U JP2446185 U JP 2446185U JP 2446185 U JP2446185 U JP 2446185U JP S61141801 U JPS61141801 U JP S61141801U
- Authority
- JP
- Japan
- Prior art keywords
- zero point
- amount
- electro
- point adjustment
- servo 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
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Servomotors (AREA)
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図である。第２図および第３図は従来例を説明
するための図で、第２図は電油サーボ弁の構成を
示す断面図、第３図は零点調整装置の構成を示す
ブロツク図である。
１０…電油サーボ弁、１１…ポンプ、１２…シ
リンダ、１３…シリンダ位置検出センサ、１４…
位置検出盤、１５…制御盤、１６…比較部、１７
，１８…第１、第２の比例ランプ、２０…シーケ
ンス制御回路、２２…零点調整自動入／切切替ス
イツチ、２３…零点調整強制実施指令スイツチ、
２４…自動零点調整回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. 2 and 3 are diagrams for explaining a conventional example. FIG. 2 is a sectional view showing the structure of an electro-hydraulic servo valve, and FIG. 3 is a block diagram showing the structure of a zero point adjustment device. 10...Electro-hydraulic servo valve, 11...Pump, 12...Cylinder, 13...Cylinder position detection sensor, 14...
Position detection panel, 15... Control panel, 16... Comparison section, 17
, 18...first and second proportional lamps, 20...sequence control circuit, 22...zero point adjustment automatic on/off switch, 23...zero point adjustment forced execution command switch,
24...Automatic zero point adjustment circuit.
Claims (1)
出し、この検出値と設定値とを比較することによ
り上記電油サーボ弁の零点ずれ量を求め、この零
点ずれ量を調整する零点調整装置において、前記
零点ずれ量とプロセス信号とに応じて零点調整を
実施するか否かを判断する判断手段と、この判断
手段により零点調整を実施する場合には前記零点
ずれ量を相殺するような補正信号を出力すると共
に調整量を保持する自動零点調整手段とを具備し
たことを特徴とする電油サーボ弁の自動零点調整
装置。 In a zero point adjustment device that detects the position of a cylinder connected to an electro-hydraulic servo valve, calculates the amount of zero point deviation of the electro-hydraulic servo valve by comparing this detected value with a set value, and adjusts this amount of zero point deviation. , a determining means for determining whether or not to perform zero point adjustment according to the zero point deviation amount and the process signal, and a correction signal that cancels out the zero point deviation amount when the zero point adjustment is performed by this determining means. 1. An automatic zero point adjustment device for an electro-hydraulic servo valve, characterized in that it is equipped with an automatic zero point adjustment means for outputting and holding the adjustment amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2446185U JPS61141801U (en) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2446185U JPS61141801U (en) | 1985-02-22 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61141801U true JPS61141801U (en) | 1986-09-02 |
Family
ID=30518630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2446185U Pending JPS61141801U (en) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61141801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249202A (en) * | 1993-02-23 | 1994-09-06 | Amada Co Ltd | Oil pressure servo system |
| JP2003343503A (en) * | 2002-05-23 | 2003-12-03 | Yokogawa Electric Corp | Valve positioner |
-
1985
- 1985-02-22 JP JP2446185U patent/JPS61141801U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249202A (en) * | 1993-02-23 | 1994-09-06 | Amada Co Ltd | Oil pressure servo system |
| JP2003343503A (en) * | 2002-05-23 | 2003-12-03 | Yokogawa Electric Corp | Valve positioner |