JPH01159598U - - Google Patents
Info
- Publication number
- JPH01159598U JPH01159598U JP5409888U JP5409888U JPH01159598U JP H01159598 U JPH01159598 U JP H01159598U JP 5409888 U JP5409888 U JP 5409888U JP 5409888 U JP5409888 U JP 5409888U JP H01159598 U JPH01159598 U JP H01159598U
- Authority
- JP
- Japan
- Prior art keywords
- timing
- excitation coil
- time
- predetermined period
- energization
- 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
- 230000005284 excitation Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Stepping Motors (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図ａ，ｂはステツピングモータの励磁コイル
の駆動タイミングを示す波形図、第３図は本考案
の手順の一例を示すフローチヤートである。
ＩＣ１…ＣＰＵ、ＩＣ２…入力インタフエース
、ＩＣ３…出力インタフエース、ＩＣ４…ドライ
バ回路、ＩＣ５…励磁シーケンスコントローラ、
ＩＣ６…スイツチングレギユレータコントローラ
、Ｑ１〜Ｑ５…スイツチングトランジスタ、φＡ
〜φＥ…励磁コイル、Ｑ６…電流制御用トランジ
スタ、ＣＯＭＰ１〜ＣＯＭＰ５…比較回路。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIGS. 2a and 2b are waveform diagrams showing the driving timing of the excitation coil of the stepping motor, and FIG. 3 is a flowchart showing an example of the procedure of the present invention. IC1...CPU, IC2...Input interface, IC3...Output interface, IC4...Driver circuit, IC5...Excitation sequence controller,
IC6...Switching regulator controller, Q1-Q5...Switching transistor, φA
~φE... Excitation coil, Q6... Current control transistor, COMP1-COMP5... Comparison circuit.
Claims (1)
おいて、各励磁コイルの駆動タイミング又は励磁
コイルのへの通電タイミングを監視する手段を設
け、該タイミングと正規な制御タイミングとを比
較し両者が所定時間以上相違する場合、又は前記
監視手段によつて検出したタイミング信号が所定
時間以上極性反転をしない時、励磁コイルへの通
電を停止し、又は同時に警告を表示を行う手段を
備えたことを特徴とするステツピングモータの保
護回路。 In the control circuit for the excitation coils of the stepping motor, a means is provided to monitor the drive timing of each excitation coil or the energization timing of each excitation coil, and the timing is compared with the regular control timing and the two differ for a predetermined period of time or more. or when the timing signal detected by the monitoring means does not reverse polarity for a predetermined period of time or more, the stepping device is characterized by comprising means for stopping energization to the excitation coil or displaying a warning at the same time. Motor protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5409888U JPH01159598U (en) | 1988-04-21 | 1988-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5409888U JPH01159598U (en) | 1988-04-21 | 1988-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159598U true JPH01159598U (en) | 1989-11-06 |
Family
ID=31280042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5409888U Pending JPH01159598U (en) | 1988-04-21 | 1988-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159598U (en) |
-
1988
- 1988-04-21 JP JP5409888U patent/JPH01159598U/ja active Pending
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