JPS5972845U - Coil failure detection device - Google Patents
Coil failure detection deviceInfo
- Publication number
- JPS5972845U JPS5972845U JP16683182U JP16683182U JPS5972845U JP S5972845 U JPS5972845 U JP S5972845U JP 16683182 U JP16683182 U JP 16683182U JP 16683182 U JP16683182 U JP 16683182U JP S5972845 U JPS5972845 U JP S5972845U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- failure detection
- detection device
- coil current
- utility
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はサーボ弁のコイル電流制御回路の構成図、第２
図は本考案の第１の実施例に係るコイル故障検出装置の
構成図、第３図はフィル電流とコイルの両端の端子電圧
との関係およびコンパレータの基準電圧を示す図、第４
図は本考案の第２の実施例に係るコイル故障検出装置の
構成図。
１・・・指令部、２・・・演算増幅器、３・・・サーボ
弁、３ａ・・・コイル、４〜７・・・コンパレータ、８
．１１・・・排他的論理和回路、９．１２・・・タイマ
、１０゜１３・・・リレー、′１７・・・不惑帯を持つ
整流回路、１９・・・誤り判定防止部、２０．２１・・
・整流回路。Figure 1 is a configuration diagram of the servo valve coil current control circuit, Figure 2
The figure is a block diagram of the coil failure detection device according to the first embodiment of the present invention, FIG. 3 is a diagram showing the relationship between the fill current and the terminal voltage at both ends of the coil, and the reference voltage of the comparator.
The figure is a configuration diagram of a coil failure detection device according to a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Command part, 2... Operational amplifier, 3... Servo valve, 3a... Coil, 4-7... Comparator, 8
．． 11... Exclusive OR circuit, 9.12... Timer, 10゜13... Relay, '17... Rectifier circuit with unfavorable zone, 19... Error determination prevention section, 20.21・・・
- Rectifier circuit.
Claims (2)
御回路において、コイル両端の各端子電圧を夫々基準電
圧と比較するコンパレータの出力状態が相反することで
コイルの故障を検出する故障検出部と、コイル両端の各
端子電圧の差が一定値を越えた状態のときに上記故障検
出部の検出を誤りと判定する誤り判定防止部とを備えた
ことを特徴とするコイルの故障検出装置。(1) In a coil current control circuit having a feedback circuit for coil current, a failure detection section detects a failure of the coil due to conflicting output states of comparators that compare each terminal voltage at both ends of the coil with a reference voltage, respectively; A coil failure detection device comprising: an error determination prevention unit that determines the detection by the failure detection unit to be an error when a difference between terminal voltages at both ends exceeds a certain value.
電流を指令する指令部は比例Ｐ動作回路に・したことを
特徴とするコイルの故障検出装置。(2) Utility Model Registration The coil failure detection device according to claim 1, characterized in that the command unit that commands the coil current is a proportional P operation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16683182U JPS5972845U (en) | 1982-11-02 | 1982-11-02 | Coil failure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16683182U JPS5972845U (en) | 1982-11-02 | 1982-11-02 | Coil failure detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5972845U true JPS5972845U (en) | 1984-05-17 |
| JPS6334416Y2 JPS6334416Y2 (en) | 1988-09-13 |
Family
ID=30365150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16683182U Granted JPS5972845U (en) | 1982-11-02 | 1982-11-02 | Coil failure detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5972845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62156564A (en) * | 1985-11-27 | 1987-07-11 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Monitor device for revolution sensor |
-
1982
- 1982-11-02 JP JP16683182U patent/JPS5972845U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62156564A (en) * | 1985-11-27 | 1987-07-11 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Monitor device for revolution sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6334416Y2 (en) | 1988-09-13 |
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