JPH0237187U - - Google Patents
Info
- Publication number
- JPH0237187U JPH0237187U JP11460988U JP11460988U JPH0237187U JP H0237187 U JPH0237187 U JP H0237187U JP 11460988 U JP11460988 U JP 11460988U JP 11460988 U JP11460988 U JP 11460988U JP H0237187 U JPH0237187 U JP H0237187U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- amplifier
- control amplifier
- current
- sub
- 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 2
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control And Safety Of Cranes (AREA)
Description
第１図は本考案の実施例を示す構成図、第２図
は従来のクレーン運転制御回路の構成図を示した
ものである。
１……速度設定器、２……速度制御アンプ、３
……電流制御アンプ、４……ゲート切替ロジツク
部、５……サイリスタ、６……直流電動機、７…
…電流検出器、８……速度発電機、９……コンパ
レータ、１０……操作回路、１１……サブ電流制
御回路、１２……メモリーアンプ、１３……サブ
電流制御アンプ、１４……サブ電流制御操作回路
。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional crane operation control circuit. 1...Speed setter, 2...Speed control amplifier, 3
...Current control amplifier, 4...Gate switching logic section, 5...Thyristor, 6...DC motor, 7...
... Current detector, 8 ... Speed generator, 9 ... Comparator, 10 ... Operation circuit, 11 ... Sub current control circuit, 12 ... Memory amplifier, 13 ... Sub current control amplifier, 14 ... Sub current Control operation circuit.
Claims (1)
装置を介して直流電動機を可逆制御し、この直流
電動機の速度信号をコンパレータに導入して直流
電動機の零速度近辺を検出し、この検出信号によ
つて電流制御アンプの出力をロツクして制御しや
断するものにおいて、前記直流電動機の負荷荷重
信号を導入して記憶するメモリアンプと、このメ
モリアンプの出力と前記電動機の電機子電流とを
導入して零速度検出時にその出力を前記電流制御
アンプを通さずに直流電動機の制御信号とするサ
ブ電流制御アンプと、前記コンパレータの零速度
近辺検出によつて動作し、一定時間後にサブ電流
制御アンプの出力をロツクするサブ電流制御操作
回路とを備えたことを特徴とした巻き上げ制御装
置。 The DC motor is reversibly controlled through a control device having a speed control amplifier and a current control amplifier, and the speed signal of this DC motor is introduced into a comparator to detect the vicinity of zero speed of the DC motor, and this detection signal is used to control the current. The control amplifier locks and controls the output of the control amplifier, and includes a memory amplifier for introducing and storing the load signal of the DC motor, and an output of the memory amplifier and the armature current of the motor. A sub-current control amplifier whose output is used as a control signal for the DC motor when zero speed is detected without passing through the current control amplifier; and a sub-current control amplifier that operates based on the comparator's detection near zero speed, and outputs the sub-current control amplifier after a certain period of time. A hoisting control device characterized by being equipped with a sub-current control operation circuit that locks the winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11460988U JPH0237187U (en) | 1988-08-31 | 1988-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11460988U JPH0237187U (en) | 1988-08-31 | 1988-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237187U true JPH0237187U (en) | 1990-03-12 |
Family
ID=31355510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11460988U Pending JPH0237187U (en) | 1988-08-31 | 1988-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0475893U (en) * | 1990-11-14 | 1992-07-02 | ||
| JP2018131283A (en) * | 2017-02-14 | 2018-08-23 | 株式会社神戸製鋼所 | Winch control device and crane |
-
1988
- 1988-08-31 JP JP11460988U patent/JPH0237187U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0475893U (en) * | 1990-11-14 | 1992-07-02 | ||
| JP2018131283A (en) * | 2017-02-14 | 2018-08-23 | 株式会社神戸製鋼所 | Winch control device and crane |
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