JPH0178961U - - Google Patents
Info
- Publication number
- JPH0178961U JPH0178961U JP1987174903U JP17490387U JPH0178961U JP H0178961 U JPH0178961 U JP H0178961U JP 1987174903 U JP1987174903 U JP 1987174903U JP 17490387 U JP17490387 U JP 17490387U JP H0178961 U JPH0178961 U JP H0178961U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- encoder
- waveform
- signal line
- pulse
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000001960 triggered effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Optical Transform (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図は本考案にかかるエンコーダ用信号線の
断線検出装置の一実施例の構成図、第２図は第１
図の動作説明用のタイムチヤート、第３図は本考
案にかかるエンコーダ用信号線の断線検出装置の
他の実施例の構成図、第４図は第３図の装置の動
作説明用のフローチヤート、第５図はエンコーダ
が適用されるシステムの一例を示した図である。
２……エンコーダ、１０……波形整形手段、２
０……ワンシヨツトマルチバイブレータ、３０…
…マイクロプロセツサ。
FIG. 1 is a block diagram of an embodiment of the encoder signal line disconnection detection device according to the present invention, and FIG.
3 is a block diagram of another embodiment of the encoder signal line disconnection detection device according to the present invention, and FIG. 4 is a flowchart to explain the operation of the device shown in FIG. 3. , FIG. 5 is a diagram showing an example of a system to which the encoder is applied. 2... Encoder, 10... Waveform shaping means, 2
0...One-shot multivibrator, 30...
...Microprocessor.
Claims (1)
に検出し、符号板の変位速度に応じた周期の正弦
波信号を出力するエンコーダにおいて、 エンコーダの出力信号波形をパルス波形に整形
する波形整形手段と、 整形されたパルス波形の周期よりも長い時定数
をもち、前記波形整形手段からパルス信号が与え
られる毎にトリガされ、トリガされてから時定数
の時間だけ経過しても次のパルス信号が来ないと
きは、エンコーダの信号線の断線信号を発生する
断線検出手段、 を具備したエンコーダ用信号線の断線検出装置。[Claims for Utility Model Registration] In an encoder that optically detects the displacement of a code plate provided with a slit array and outputs a sine wave signal with a period corresponding to the displacement speed of the code plate, the output signal waveform of the encoder is A waveform shaping means for shaping into a pulse waveform, and having a time constant longer than the period of the shaped pulse waveform, is triggered every time a pulse signal is given from the waveform shaping means, and only the time constant elapses after being triggered. A disconnection detection device for a signal line for an encoder, comprising: disconnection detection means for generating a disconnection signal for the encoder signal line when the next pulse signal does not come even after the signal line is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174903U JPH0178961U (en) | 1987-11-16 | 1987-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174903U JPH0178961U (en) | 1987-11-16 | 1987-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178961U true JPH0178961U (en) | 1989-05-26 |
Family
ID=31466733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987174903U Pending JPH0178961U (en) | 1987-11-16 | 1987-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178961U (en) |
-
1987
- 1987-11-16 JP JP1987174903U patent/JPH0178961U/ja active Pending