JPH0275519U - - Google Patents
Info
- Publication number
- JPH0275519U JPH0275519U JP15527388U JP15527388U JPH0275519U JP H0275519 U JPH0275519 U JP H0275519U JP 15527388 U JP15527388 U JP 15527388U JP 15527388 U JP15527388 U JP 15527388U JP H0275519 U JPH0275519 U JP H0275519U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- output
- storing
- sets
- signal
- 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
- 230000005856 abnormality Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000003708 edge detection Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Description
第１図、第２図および第３図は本考案の技術思
想の理解を容易にするため示した要部構成図およ
びその各部波形図、第４図および第５図は従来技
術を説明するため示した電動機駆動装置の一般的
な回路図および電動機速度の時間推移を示す図で
ある。
４……速度検出器、６……速度指令発生回路、
９……電動機速度異常検出回路、１０，１０′…
…カウンタ、１１，１１′，１１″……記憶部、
１２……パルスエツジ検出回路。
Figures 1, 2 and 3 are main part configuration diagrams and waveform diagrams of each part shown to facilitate understanding of the technical idea of the present invention, and Figures 4 and 5 are used to explain the prior art. 1 is a general circuit diagram of the illustrated motor drive device and a diagram showing the time course of the motor speed; FIG. 4...Speed detector, 6...Speed command generation circuit,
9... Motor speed abnormality detection circuit, 10, 10'...
...Counter, 11, 11', 11''...Storage section,
12...Pulse edge detection circuit.
Claims (1)
た２組のパルス信号のパルス数の差を計数するア
ツプダウンカウンタと、前記２組のパルス信号の
パルス立ち上がりエツジを検出するパルスエツジ
検出回路と、該パルスエツジ検出回路出力を計数
するアツプカウンタと、前記アツプダウンカウン
タ出力のキヤリー信号とボロー信号およびアツプ
カウンタ出力のキヤリー信号を記憶する手段とを
備えるとともに、前記２組のパルス信号の一方お
よび両方の異常状態を検出する信号を導出するよ
うにしたことを特徴とするパルスエンコーダの異
常検出回路。 an up-down counter that counts the difference in the number of pulses between two sets of pulse signals output from a pulse encoder that have the same period and are out of phase; a pulse edge detection circuit that detects a rising edge of a pulse of the two sets of pulse signals; It comprises an up counter for counting circuit output, a means for storing the carry signal and borrow signal of the up-down counter output, and means for storing the carry signal of the up-counter output, and a means for storing an abnormal state of one or both of the two sets of pulse signals. An abnormality detection circuit for a pulse encoder, characterized in that a signal to be detected is derived.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15527388U JPH0635130Y2 (en) | 1988-11-29 | 1988-11-29 | Abnormality detection circuit of pulse encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15527388U JPH0635130Y2 (en) | 1988-11-29 | 1988-11-29 | Abnormality detection circuit of pulse encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0275519U true JPH0275519U (en) | 1990-06-08 |
| JPH0635130Y2 JPH0635130Y2 (en) | 1994-09-14 |
Family
ID=31432757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15527388U Expired - Fee Related JPH0635130Y2 (en) | 1988-11-29 | 1988-11-29 | Abnormality detection circuit of pulse encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635130Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208507A (en) * | 2000-01-28 | 2001-08-03 | Dainippon Printing Co Ltd | Measuring roller system |
| JP2010169556A (en) * | 2009-01-23 | 2010-08-05 | Fuji Electric Systems Co Ltd | Speed monitoring device |
-
1988
- 1988-11-29 JP JP15527388U patent/JPH0635130Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208507A (en) * | 2000-01-28 | 2001-08-03 | Dainippon Printing Co Ltd | Measuring roller system |
| JP2010169556A (en) * | 2009-01-23 | 2010-08-05 | Fuji Electric Systems Co Ltd | Speed monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635130Y2 (en) | 1994-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |