JP2606447Y2 - Speed limiter in torque control of newspaper rotary press - Google Patents

Speed limiter in torque control of newspaper rotary press

Info

Publication number
JP2606447Y2
JP2606447Y2 JP1993066220U JP6622093U JP2606447Y2 JP 2606447 Y2 JP2606447 Y2 JP 2606447Y2 JP 1993066220 U JP1993066220 U JP 1993066220U JP 6622093 U JP6622093 U JP 6622093U JP 2606447 Y2 JP2606447 Y2 JP 2606447Y2
Authority
JP
Japan
Prior art keywords
speed
rotary press
section
main shaft
newspaper rotary
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.)
Expired - Fee Related
Application number
JP1993066220U
Other languages
Japanese (ja)
Other versions
JPH0730599U (en
Inventor
亨 秋山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP1993066220U priority Critical patent/JP2606447Y2/en
Publication of JPH0730599U publication Critical patent/JPH0730599U/en
Application granted granted Critical
Publication of JP2606447Y2 publication Critical patent/JP2606447Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Control Of Multiple Motors (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は新聞輪転機に係り、特に
誘導電動機の速度制限装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a newspaper rotary press, and more particularly to a speed limiter for an induction motor.

【0002】[0002]

【従来の技術】図3は従来の一例を示すシステム構成図
であり、1は主幹制御装置、2はインバータ制御装置、
3は三相誘導電動機、4は主軸回転検出器、5は主軸、
6はクラッチ、7はクラッチ6に連動するリレー接点、
8は印刷速度設定器、9は(周波数/電圧)変換器、10
は加減算器、11はPI演算器である。図3において、ま
ず主軸回転検出器4よりの周波数信号を(周波数/電
圧)変換器9によりアナグロ電圧信号に変換し、これを
印刷速度フィードバック信号として、印刷速度設定器8
で設定された印刷速度指令信号とを加減算器10で演算
し、この偏差をさらにPI演算器11で演算し、結果を各
インバータ制御装置2へのトルク指令信号としている。
そして、各インバータ制御装置2に与えられたトルク指
令に応じたトルクを発生するよう誘導電動機3を制御し
ている。
2. Description of the Related Art FIG. 3 is a system configuration diagram showing an example of a conventional system, wherein 1 is a master controller, 2 is an inverter controller,
3 is a three-phase induction motor, 4 is a spindle rotation detector, 5 is a spindle,
6 is a clutch, 7 is a relay contact linked to the clutch 6,
8 is a printing speed setting device, 9 is a (frequency / voltage) converter, 10
Denotes an adder / subtractor, and 11 denotes a PI calculator. In FIG. 3, first, a frequency signal from the spindle rotation detector 4 is converted to an analog voltage signal by a (frequency / voltage) converter 9, and this is used as a printing speed feedback signal, and the printing speed setting device 8 is used.
Is calculated by the adder / subtractor 10, the deviation is further calculated by the PI calculator 11, and the result is used as a torque command signal to each inverter control device 2.
Then, the induction motor 3 is controlled so as to generate a torque according to the torque command given to each inverter control device 2.

【0003】[0003]

【考案が解決しようとする課題】しかし、従来の技術で
は主軸がクラッチにより連結されていることを条件に、
トルク指令を各インバータに与えているため、万一クラ
ッチがはずれた状態でインバータを運転すると、誘導電
動機は無負荷運転状態となり、最高回転数まで暴走する
可能性があった。本考案は上述した点に鑑みて創案され
たもので、その目的とするところは、誘導電動機の回転
速度を制限し、結果的に機械の暴走を防止する新聞輪転
機のトルク制御における速度制限装置を提供するもので
ある。
However, in the prior art, on the condition that the main shaft is connected by a clutch,
Since the torque command is given to each inverter, if the inverter is operated in a state where the clutch is disengaged, the induction motor will be in a no-load operation state, and there is a possibility that the induction motor will run away to the maximum rotation speed. SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a purpose thereof is to limit the rotation speed of an induction motor, thereby preventing a runaway of a machine. Is provided.

【0004】[0004]

【課題を解決するための手段】つまり、その目的を達成
するための手段は、主幹制御装置における印刷速度設定
器で設定された印刷速度指令を各インバータ制御装置へ
与えること、およびインバータ制御装置に回転速度制限
回路を設けることであり、回転速度制限回路は電動機回
転速度推定部、比較速度設定部および速度比較部より構
成される。
Means for achieving the object are to provide a print speed command set by a print speed setting device in the master control device to each inverter control device, and to provide the inverter control device with a print speed command. A rotation speed limiting circuit is provided, and the rotation speed limiting circuit includes a motor rotation speed estimation unit, a comparison speed setting unit, and a speed comparison unit.

【0005】[0005]

【作用】その作用は、速度推定部では誘導電動機の各種
電気的定数電圧ベクトル、電流ベクトルより誘導電動機
の回転速度を算出し、比較速度設定部では主幹制限装置
より与えられる回転速度信号にオフセット値を加算して
可変過速度検出値とし、速度比較部では回転速度と可変
過速度検出値とを比較し、回転速度が検出値を越えた時
にインバータを停止させるものである。以下、本考案の
一実施例を、図面に基づいて詳述する。
The operation is as follows. The speed estimation unit calculates the rotation speed of the induction motor from various electric constant voltage vectors and current vectors of the induction motor, and the comparison speed setting unit calculates the offset value to the rotation speed signal given by the master limiting device. Is added to obtain a variable overspeed detection value, and the speed comparison unit compares the rotation speed with the variable overspeed detection value, and stops the inverter when the rotation speed exceeds the detection value. Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

【0006】[0006]

【実施例】図1は本考案の一実施例を示すシステム構成
図、図2は回転速度制限回路図であり、図中、図3と同
符号のものは同じ構成の機能を有する部分である。図1
において、本考案の主旨は、主幹制御装置1における印
刷速度設定器8で設定された印刷速度指令nを各インバ
ータ制御装置2へ与えたこと、および各インバータ制御
装置2に図2に示す回転速度制限回路12を設けたことで
ある。
FIG. 1 is a system configuration diagram showing one embodiment of the present invention, and FIG. 2 is a rotation speed limiting circuit diagram. In FIG. . FIG.
In the present invention, the main point of the present invention is that the printing speed command n set by the printing speed setting device 8 in the master control device 1 is given to each inverter control device 2 and the rotation speed shown in FIG. That is, the limiting circuit 12 is provided.

【0007】図2に示す回転速度制限回路12では、比
較速度設定部13で主幹制御装置1より与えられる印刷
速度指令nに、回転速度のリミッタ用として設けたオフ
セット値14を加減算器10により加算して可変過速度
検出値とし、速度推定部15で回転速度制限回路12に
内蔵されている誘導電動機3の各種電気的定数、電圧ベ
クトルv、電流ベクトルiおよびPI演算器11からの
トルク指令信号τより誘導電動機3の回転速度n′を電
動機回転速度推定部15で算出し、速度比較部16で可
変過速度検出値と回転速度n′を比較し、回転速度n′
が可変速度検出値を越えた時にインバータ制御装置2を
停止させるよう動作する。
In a rotation speed limiting circuit 12 shown in FIG. 2, an adder / subtractor 10 adds an offset value 14 provided for a rotation speed limiter to a printing speed command n given by a master controller 1 by a comparison speed setting unit 13. And a variable overspeed detection value, and a speed estimation unit 15 controls various electric constants, a voltage vector v, a current vector i of the induction motor 3 incorporated in the rotation speed limiting circuit 12 and a torque command signal from the PI calculator 11. The rotation speed n 'of the induction motor 3 is calculated from τ by the motor rotation speed estimation unit 15, and the speed comparison unit 16 compares the variable overspeed detection value with the rotation speed n'.
Is operated to stop the inverter control device 2 when exceeds the variable speed detection value.

【0008】[0008]

【考案の効果】以上説明したように本考案によれば、誘
導電動機のトルク制御において、誘導電動機が無負荷状
態となった場合でも回転速度を制限することができ、ま
たその結果として新聞輪転機の暴走を防止することが可
能である。
As described above, according to the present invention, in the torque control of the induction motor, the rotation speed can be limited even when the induction motor is in a no-load state. Runaway can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図1】図1は本考案の一実施例を示すシステム構成図
である。
FIG. 1 is a system configuration diagram showing an embodiment of the present invention.

【図2】図2は本考案の一実施例を示す回転速度制限回
路図である。
FIG. 2 is a rotation speed limiting circuit diagram showing one embodiment of the present invention.

【図3】図3は従来の一例を示すシステム構成図であ
る。
FIG. 3 is a system configuration diagram showing an example of the related art.

【符号の説明】[Explanation of symbols]

1 主幹制御装置 2 インバータ制御装置 3 三相誘導電動機 4 主軸回転検出器 5 主軸 6 クラッチ 7 リレー接点 8 印刷速度設定器 9 (周波数/電圧)変換器 10 加減算器 11 PI演算器 12 回転速度制限回路 13 比較速度設定部 14 オフセット値 15 電動機回転速度推定部 16 速度比較部 REFERENCE SIGNS LIST 1 master control device 2 inverter control device 3 three-phase induction motor 4 main shaft rotation detector 5 main shaft 6 clutch 7 relay contact 8 printing speed setting device 9 (frequency / voltage) converter 10 adder / subtractor 11 PI calculator 12 rotation speed limiting circuit 13 Comparison speed setting section 14 Offset value 15 Motor rotation speed estimation section 16 Speed comparison section

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 複数の三相誘導電動機を直列に配列し、
それぞれの電動機の駆動軸同士を主軸とクラッチにより
区切られたセクションごとにそのセクションの主軸より
動力を得る新聞輪転機を設け、更に基準となるセクショ
ンの主軸1箇所のみに主軸回転検出器を設け、クラッチ
が切り離されたセクションは回転速度検出が不可能な新
聞輪転機で、印刷速度設定器からの信号と印刷速度フィ
ードバック信号を演算し、その結果をトルク指令信号と
して、複数の三相誘導電動機を駆動するためのこれに対
応するインバータ制御装置に与える新聞輪転機のセンサ
レスベクトルトルク制御装置において、前記トルク指令
信号の他に、このトルク指令信号により回転する誘導電
動機の各種電気的定数、電圧ベクトル、電流ベクトルよ
り算出される実速度と、前記印刷速度設定器で設定され
た設定速度とを比較する速度比較部を設け、この速度比
較部の出力が誘導電動機が設定速度を越えないように、
前記設定信号にオフセット値を加算する比較速度設定部
を設け、この比較速度設定部によって速度制限をかける
よう構成したことを特徴とする新聞輪転機のトルク制御
における速度制限装置。
1. A plurality of three-phase induction motors are arranged in series,
For each section of the drive shaft of each electric motor separated by the main shaft and the clutch, a newspaper rotary press that obtains power from the main shaft of the section is provided, and further, a main shaft rotation detector is provided only at one main shaft of the reference section, The section where the clutch is disengaged is a newspaper rotary press that cannot detect the rotation speed.It calculates the signal from the print speed setting device and the print speed feedback signal, and uses the result as a torque command signal to control multiple three-phase induction motors. In the sensorless vector torque control device of a newspaper rotary press applied to the corresponding inverter control device for driving, in addition to the torque command signal, various electric constants of the induction motor rotated by the torque command signal, a voltage vector, The actual speed calculated from the current vector is compared with the set speed set by the printing speed setting device. The speed comparing section provided, so that the output of the speed comparison unit is an induction motor does not exceed the set speed of,
A speed limiting device in torque control of a newspaper rotary press, wherein a comparative speed setting unit for adding an offset value to the setting signal is provided, and the speed is limited by the comparative speed setting unit.
JP1993066220U 1993-11-17 1993-11-17 Speed limiter in torque control of newspaper rotary press Expired - Fee Related JP2606447Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993066220U JP2606447Y2 (en) 1993-11-17 1993-11-17 Speed limiter in torque control of newspaper rotary press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993066220U JP2606447Y2 (en) 1993-11-17 1993-11-17 Speed limiter in torque control of newspaper rotary press

Publications (2)

Publication Number Publication Date
JPH0730599U JPH0730599U (en) 1995-06-06
JP2606447Y2 true JP2606447Y2 (en) 2000-11-06

Family

ID=13309540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993066220U Expired - Fee Related JP2606447Y2 (en) 1993-11-17 1993-11-17 Speed limiter in torque control of newspaper rotary press

Country Status (1)

Country Link
JP (1) JP2606447Y2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106889A (en) * 1982-12-10 1984-06-20 Toyota Central Res & Dev Lab Inc Speed controller
JPS605797A (en) * 1983-06-23 1985-01-12 Yaskawa Electric Mfg Co Ltd Overspeed protecting device of motor

Also Published As

Publication number Publication date
JPH0730599U (en) 1995-06-06

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