JPS62175302U - - Google Patents
Info
- Publication number
- JPS62175302U JPS62175302U JP6210186U JP6210186U JPS62175302U JP S62175302 U JPS62175302 U JP S62175302U JP 6210186 U JP6210186 U JP 6210186U JP 6210186 U JP6210186 U JP 6210186U JP S62175302 U JPS62175302 U JP S62175302U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- voltage
- pulse signal
- servo control
- analog
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Numerical Control (AREA)
- Safety Devices In Control Systems (AREA)
- Control Of Position Or Direction (AREA)
Description
第1図はこの考案によるサーボ制御装置の一実
施例を示すブロツク回路図、第2図は第1図にお
ける差動増幅回路の一例を示すブロツク回路図、
第3図は第2図における差動増幅回路の他の例を
示すブロツク回路図、第4図は第2図における差
動増幅回路のさらに他の例を示すブロツク回路図
、第5図は差動増幅回路の動作を説明するための
特性図、第6図は従来のサーボ制御装置の一例を
示すブロツク回路図、第7図は従来のサーボ制御
装置の動作を説明するためのタイムチヤートであ
る。
1……サーボモータ、2……回転位置検出器、
3……偏差カウンタ回路、4……デジタル・アナ
ログ変換回路、5……周波数・電圧変換回路、7
……電圧増幅器、8……電流増幅器、11……モ
ータ電流検出器、14……差動増幅回路、20…
…演算増幅器、23……切替スイツチ、V2……
出力電圧。なお、図中同一符号は、同一または相
当部分を示す。
FIG. 1 is a block circuit diagram showing an embodiment of the servo control device according to this invention, FIG. 2 is a block circuit diagram showing an example of the differential amplifier circuit in FIG. 1,
3 is a block circuit diagram showing another example of the differential amplifier circuit in FIG. 2, FIG. 4 is a block circuit diagram showing still another example of the differential amplifier circuit in FIG. 2, and FIG. FIG. 6 is a block circuit diagram showing an example of a conventional servo control device, and FIG. 7 is a time chart for explaining the operation of a conventional servo control device. . 1... Servo motor, 2... Rotational position detector,
3... Deviation counter circuit, 4... Digital/analog conversion circuit, 5... Frequency/voltage conversion circuit, 7
... Voltage amplifier, 8 ... Current amplifier, 11 ... Motor current detector, 14 ... Differential amplifier circuit, 20 ...
...Operation amplifier, 23...Selector switch, V2...
Output voltage. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
モータを正逆転駆動制御するサーボ制御系と、こ
のサーボ制御系で駆動制御されるサーボモータの
回転位置を検出する回転位置検出器とを具備し、
上記サーボ制御系は、位置指令信号と回転位置検
出器からの検出パルス信号とを受ける偏差カウン
タ回路と、この偏差カウンタ回路からの出力パル
ス信号をアナログ信号に変換するとともにこの出
力パルス信号に対応するアナログ信号を出力する
デジタル・アナログ変換回路と、上記回転位置検
出器からの検出パルス信号を受けてこの検出パル
ス信号の周波数に対応するアナログ電圧信号を出
力する周波数・電圧変換回路と、上記サーボモー
タの駆動電流検出する電流検出器と、デジタル・
アナログ変換回路と周波数・電圧変換回路からの
両電圧信号の差信号を増幅する電圧増幅器と、こ
の電圧増幅器と電流検出器からの両電流信号の差
信号を増幅する差動増幅回路とを備えたサーボ制
御装置において、上記差動増幅回路は、演算増幅
器と、この演算増幅器のゲインを切り替える切替
スイツチを備え、この切替スイツチの切り替えで
演算増幅器の出力電圧を制御するように構成した
ことを特徴とするサーボ制御装置。 A servo motor, a servo control system that receives a command signal and controls the servo motor to drive in forward and reverse directions, and a rotational position detector that detects the rotational position of the servo motor that is drive-controlled by the servo control system,
The servo control system includes a deviation counter circuit that receives a position command signal and a detection pulse signal from a rotational position detector, and converts the output pulse signal from the deviation counter circuit into an analog signal and responds to the output pulse signal. a digital-to-analog conversion circuit that outputs an analog signal; a frequency/voltage conversion circuit that receives a detection pulse signal from the rotational position detector and outputs an analog voltage signal corresponding to the frequency of the detection pulse signal; and the servo motor. A current detector that detects the drive current and a digital
A voltage amplifier that amplifies a difference signal between both voltage signals from an analog conversion circuit and a frequency/voltage conversion circuit, and a differential amplifier circuit that amplifies a difference signal between both current signals from this voltage amplifier and a current detector. In the servo control device, the differential amplifier circuit includes an operational amplifier and a changeover switch that changes the gain of the operational amplifier, and is configured to control the output voltage of the operational amplifier by switching the changeover switch. servo control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6210186U JPS62175302U (en) | 1986-04-24 | 1986-04-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6210186U JPS62175302U (en) | 1986-04-24 | 1986-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62175302U true JPS62175302U (en) | 1987-11-07 |
Family
ID=30896053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6210186U Pending JPS62175302U (en) | 1986-04-24 | 1986-04-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62175302U (en) |
-
1986
- 1986-04-24 JP JP6210186U patent/JPS62175302U/ja active Pending
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