JPH02133197U - - Google Patents
Info
- Publication number
- JPH02133197U JPH02133197U JP1989041945U JP4194589U JPH02133197U JP H02133197 U JPH02133197 U JP H02133197U JP 1989041945 U JP1989041945 U JP 1989041945U JP 4194589 U JP4194589 U JP 4194589U JP H02133197 U JPH02133197 U JP H02133197U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- volatile memory
- curve
- maximum current
- current value
- 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 3
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例の構成図、第２図は
Ｉ−Ｎ曲線の一例を示した図、第３図は従来のお
けるモータ駆動電流の制限装置の構成例ぎ示した
図、第４図は第３図の装置で用いる電圧制限曲線
を示した図である。
１……モータ、２……エンコーダ、５……電圧
制限器、７……不揮発性メモリ、８……揮発性メ
モリ、９……マイクロプロセツサ、９１……演算
手段、９２……速度検出手段。
FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram showing an example of an I-N curve, and FIG. 3 is a diagram showing an example of the configuration of a conventional motor drive current limiting device. FIG. 4 is a diagram showing a voltage limiting curve used in the device of FIG. 3. DESCRIPTION OF SYMBOLS 1... Motor, 2... Encoder, 5... Voltage limiter, 7... Non-volatile memory, 8... Volatile memory, 9... Microprocessor, 91... Arithmetic means, 92... Speed detection means .
Claims (1)
タの回転速度に応じて定めるモータ駆動電流の制
限装置において、 前記最大電流値とモータの回転速度の関係を表
わすＩ−Ｎ曲線のパラメータが格納された不揮発
性メモリと、 Ｉ−Ｎ曲線を最大電流値とモータの回転数を対
応させたテーブルにして格納する揮発性メモリと
、 前記不揮発性メモリから読み出されたパラメー
タでＩ−Ｎ曲線を選択し選択したＩ−Ｎ曲線上に
おける最大電流値とモータの回転数を算出しこれ
らを対応させて前記揮発性メモリに格納する演算
手段と、モータの回転検出用エンコーダの出力か
らモータの回転数を検出する速度検出手段を有し
、速度検出手段で検出した回転数をもとに前記揮
発性メモリから最大電流値を読み出すプロセツサ
と、 このプロセツサで読み出した最大電流値でモー
タのコイルに供給する電流を制限する制限器、 を具備したことを特徴とするモータ駆動電流の制
限装置。[Claims for Utility Model Registration] In a motor drive current limiting device that determines the maximum current value supplied to a coil of a motor according to the rotational speed of the motor, I- a non-volatile memory that stores parameters of the N curve; a volatile memory that stores the I-N curve as a table that corresponds to maximum current values and motor rotational speeds; and parameters read from the non-volatile memory. an arithmetic means for selecting an I-N curve, calculating a maximum current value on the selected I-N curve and the rotational speed of the motor, and storing these in the volatile memory in correspondence; and an encoder for detecting the rotation of the motor. a processor having a speed detection means for detecting the rotation speed of the motor from the output, and reading a maximum current value from the volatile memory based on the rotation speed detected by the speed detection means; A motor drive current limiting device comprising: a limiter that limits the current supplied to a coil of a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989041945U JPH02133197U (en) | 1989-04-10 | 1989-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989041945U JPH02133197U (en) | 1989-04-10 | 1989-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133197U true JPH02133197U (en) | 1990-11-05 |
Family
ID=31553050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989041945U Pending JPH02133197U (en) | 1989-04-10 | 1989-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014185031A (en) * | 2013-03-25 | 2014-10-02 | Komatsu Ntc Ltd | Tension fluctuation suppression method and tension fluctuation suppression device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60255076A (en) * | 1984-05-30 | 1985-12-16 | Mitsubishi Electric Corp | Control circuit for motor |
-
1989
- 1989-04-10 JP JP1989041945U patent/JPH02133197U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60255076A (en) * | 1984-05-30 | 1985-12-16 | Mitsubishi Electric Corp | Control circuit for motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014185031A (en) * | 2013-03-25 | 2014-10-02 | Komatsu Ntc Ltd | Tension fluctuation suppression method and tension fluctuation suppression device |
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