JPS6240095A - Input circuit for control signal for drive of stepping motor - Google Patents

Input circuit for control signal for drive of stepping motor

Info

Publication number
JPS6240095A
JPS6240095A JP17880185A JP17880185A JPS6240095A JP S6240095 A JPS6240095 A JP S6240095A JP 17880185 A JP17880185 A JP 17880185A JP 17880185 A JP17880185 A JP 17880185A JP S6240095 A JPS6240095 A JP S6240095A
Authority
JP
Japan
Prior art keywords
control signal
capacitor
coupler
input circuit
step motor
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
Application number
JP17880185A
Other languages
Japanese (ja)
Inventor
Yoshiyasu Sakaguchi
阪口 善保
Yukihiko Okamura
幸彦 岡村
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP17880185A priority Critical patent/JPS6240095A/en
Publication of JPS6240095A publication Critical patent/JPS6240095A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/32Reducing overshoot or oscillation, e.g. damping

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To afford noises excellent in noise resistance against power overlapping noises by connectting a capacitor for preventing noises between a line connected on the input side of a photo-coupler and a line on the output side. CONSTITUTION:A low-pass filter consisting of a resistor R and a capacitor C1 is fitted on the input side of a photo-coupler PC. A capacitor C2 for preventing noises is connected between one end of the resistor R and a line grounded on the output side of the photo-coupler PC. The intrusion of noise pulses to the photo-coupler PC is stopped by the capacitor C1 against noise pulses generated among input signal lines, and the intrusion of noise pulses to an input to the photo-coupler PC is obstructed by the capacitor C2 for preventing noises against noise pulses generated between a line on the high potential side of an input terminal for a control-signal input circuit 2 and a ground.

Description

【発明の詳細な説明】 [技術分野1 本発明は、コントローラの発生する制御信号が7オトカ
ブラを介して入力されるステップモータ駆動装置の制御
信号入力回路に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a control signal input circuit for a step motor drive device into which a control signal generated by a controller is inputted via a seven-way automatic braker.

[背景技術1 第1図に示す如く、ステップモー76を駆動する制御i
t系は、制御信号を発生するコントローラ1と、上記制
御信号を人力とじて上記制御信号に対応してステップモ
ータ6の各巻線(図示せず)に流れるコイル電流を、定
められた順序でオン・オフ制御するステップモータ駆動
装fil 3とから成り、該ステップモータ駆動装置3
はさらに、駆動回路4と、該駆動回路4に直流電圧を供
給する直流電源5とから構成されている。上記コントロ
ーラ1は、例えばパルス発振器で構成することが可能で
、この場合、上記制御信号はパルス信号となる。また、
第1図のステップモータ駆動装置3は商用電源<ACl
ooV)より電力供給を受けているが、一般にこのよう
な情況下ではステ・ンブモータ駆動装置3の高信頼性を
実現するために、上記商用電源に重畳する可能性のある
雷サージ管により発生するノイズに対して、充分なノイ
ズマージンを備えた、高品質の装置を開発する必要があ
る。前記/7−1息仕九琺ト十す・めけ 酸1圀め1ソ
トローラ1と駆動装置3とを7tトカブラで接続してア
イソレージタンを行いコントローラ1からのノイズの影
響を除去する方法がとられ゛ていた。上記の効果を定量
的に把握するためにノイズシミlレータ(三基電子工業
株式会社91EMS−14P)を使用して下記の条件下
で7オトカプラ(東京芝浦電気株式会社!l!TLP−
521−3)を用いたステップモータ駆動装置3の電源
重畳ノイズ特性の測定を実施した。
[Background Art 1 As shown in FIG. 1, control i for driving the step motor 76
The T-system includes a controller 1 that generates a control signal, and a controller 1 that generates a control signal and turns on a coil current flowing through each winding (not shown) of a step motor 6 in a predetermined order in response to the control signal.・It consists of a step motor drive device fil 3 that performs off control, and the step motor drive device 3
The drive circuit 4 further includes a drive circuit 4 and a DC power supply 5 that supplies DC voltage to the drive circuit 4. The controller 1 can be composed of, for example, a pulse oscillator, and in this case, the control signal is a pulse signal. Also,
The step motor drive device 3 in FIG.
Generally, under such circumstances, in order to achieve high reliability of the main motor drive unit 3, lightning surge tubes that may be superimposed on the commercial power supply are generated. There is a need to develop high quality equipment with sufficient noise margins. The method for removing the influence of noise from the controller 1 is to perform isolation by connecting the acid roller 1 and the drive device 3 with a 7-ton tokabra. It was taken. In order to quantitatively understand the above effects, a noise simulator (Sanki Denshi Kogyo Co., Ltd. 91EMS-14P) was used under the following conditions.
521-3) was used to measure the power supply superimposed noise characteristics of the step motor drive device 3.

極  性二十 ノイズパルス幅 :  50  n5eeコモンモード その結果、ステップモータ駆動装置3に入力信号線を接
続しない場合には、誤動作が発生するノイズパルスのピ
ーク値は700V以上となるのに対し、入力信号線を接
続した通常の使用状態と同様の条件においては、上記誤
動作が発生するノイズパルスのピーク値は250Vにま
で低下することが明らかとなった。以上の測定結果は、
ステップモータ駆動装置3の制御信号入力回路に、単に
7オトカブラを使用してアイソレージタンを行っただけ
では、ノイズパルスのピーク値が250■という非常に
低い電圧で誤動作が発生し、耐ノイズが不充分であると
いう問題点を指摘するものに他ならない。
Polarity 20 Noise pulse width: 50 n5ee common mode As a result, if the input signal line is not connected to the step motor drive device 3, the peak value of the noise pulse that causes malfunction will be 700 V or more, whereas the input It has become clear that under conditions similar to normal use with signal lines connected, the peak value of the noise pulse that causes the above-mentioned malfunction drops to 250V. The above measurement results are
If the control signal input circuit of the step motor drive device 3 is simply isolated using a 7-point converter, malfunctions will occur at a very low voltage with a noise pulse peak value of 250μ, and the noise resistance will deteriorate. This is nothing but pointing out the problem of insufficiency.

[発明の目的] 本発明は、上述の問題点に鑑み為されたものであり、電
源重畳ノイズに対して優れた耐ノイズ性を有する7オト
カブラを用いたステップモータ駆動装置の制御信号入力
回路を提供することを目的とする。
[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and provides a control signal input circuit for a step motor drive device using a 7-way converter that has excellent noise resistance against power superimposed noise. The purpose is to provide.

[発明の開示] 本発明のステップモータ駆動v装置の制御信号入力回路
は、商用電源から電力供給をうけると共に、コントロー
ラの発生する制御信号が7i)カブラを介して入力され
、該制御信号に対応してステップモータの各8Mに流れ
るコイル電流を、定められた順序でオン・オフ制御する
ステップモータ駆動装置の制御信号入力回路において、
上記7オトカブラの入力側に接続される一線と、出力側
の一線との間に接続されるノイズ防止用コンデンサを備
元た構成となっている。
[Disclosure of the Invention] The control signal input circuit of the step motor drive v device of the present invention is supplied with power from a commercial power supply, and a control signal generated by the controller is inputted via the converter 7i), and the control signal input circuit corresponds to the control signal. In a control signal input circuit of a step motor drive device that controls on/off the coil current flowing through each 8M of the step motor in a predetermined order,
The configuration includes a noise prevention capacitor connected between a line connected to the input side of the above-mentioned 7 automatic bras and a line connected to the output side.

(実施例) 本発明の一実施例の回路図を第2図に示す。直流電源■
の直流電圧をトランゾースタ等のスイッチング素子SW
を用いてチタツビングし、パルス信号を発生させ該パル
ス信号を制御信号とするコントローラ1の出力が、制御
信号入力回路2を介してステップモータ駆動装置3に供
給されている。
(Embodiment) A circuit diagram of an embodiment of the present invention is shown in FIG. DC power supply■
The DC voltage of the switching element SW of the transistor etc.
The output of a controller 1 is supplied to a step motor drive device 3 via a control signal input circuit 2.

上記制御信号入力回路2は7オトカプラPCを介して、
上記制御信号をステップモータ駆動装置3に伝達してい
る。本実施例では、上記7オトカプラPCの入力側に抵
抗RとコンデンサC1からなるローバスフィルりを設C
すると共に、7オトカプラPCの入力側に接続される一
線、すなわち上記抵抗Rの一端と、7r)カブラPCの
出力側のアースされた一線と接続される端子とのあいだ
にノイズ防止用コンデンサC2を接続した構成となって
いる。従って、上記コンデンサC1,ノイズ防止Fl(
w’r−’;’・i4hど’、Mo#8)、sv+、+
mμ+L)lfパルスの高周波成分に対して、各々のり
アクタンスが充分小さくなるように選ぶことにより、入
力信号線間に発生するノイズパルスに対しては、コンデ
ンサC3に電流■、が流れて7オトカプラPCへのノイ
ズパルスの侵入が阻止され、また、制御信号入力回路2
の入力端子の高電位側の一線とア一入間に発生するノイ
ズパルスに対しては、ノイズ防止用コンデンサC2に電
流I2が流れて、7オトカプラPCの入力へのノイズパ
ルスの侵入が阻止されることになる。すなわち、電源重
畳ノイズの影響を除去することができるのである。
The control signal input circuit 2 is connected to the 7-auto coupler PC through the
The control signal is transmitted to the step motor drive device 3. In this embodiment, a low-pass filter consisting of a resistor R and a capacitor C1 is installed on the input side of the above-mentioned 7 Otocoupler PCs.
At the same time, a noise prevention capacitor C2 is connected between the line connected to the input side of 7r) Otocoupler PC, that is, one end of the above-mentioned resistor R, and the terminal connected to the grounded line on the output side of 7r) Coupler PC. It has a connected configuration. Therefore, the above capacitor C1, noise prevention Fl(
w'r-';'・i4hdo', Mo#8), sv+, +
mμ+L) lf By selecting the actance so that it is sufficiently small for the high frequency component of the pulse, current ■ flows through the capacitor C3 against the noise pulse generated between the input signal lines, and the 7 Otocoupler PC This prevents noise pulses from entering the control signal input circuit 2.
In response to noise pulses generated between the high-potential side line of the input terminal of It turns out. In other words, the influence of power superimposed noise can be removed.

[発明の効果] 本発明のステップモータ駆動I装置の制御信号入力回路
は、商用電源から電力供給をうけると共に、コントロー
ラの発生する制御信号が7r)カブラを介して入力され
、該制御信号に対応してステップモータの各−8#lに
流れるフィル電流を、定められた順序でオン・オフ制御
するステップモータ駆動装置の制御信号入力回路におい
て、上記7オトカプラの入力側に接紗される一線と、出
力側の−線との間に接続されるメイで防止用コンデンサ
をイ旬えているので、雷す−ノ等により商用電源の電圧
に重畳するノイズパルスに刻する村ノイズ性が向上し一
ζ、ステップモータの誤動作の発生を防止することがで
きるという効果を奏する。
[Effects of the Invention] The control signal input circuit of the step motor drive I device of the present invention is supplied with power from a commercial power supply, and the control signal generated by the controller is inputted via the coupler 7r), and the control signal input circuit corresponds to the control signal. In the control signal input circuit of a step motor drive device that controls on/off the fill current flowing through each -8 #l of the step motor in a predetermined order, a line connected to the input side of the 7 external couplers and Since a protective capacitor is installed in the main line connected between the - line on the output side, the noise generated by noise pulses superimposed on the voltage of the commercial power supply due to lightning bolts, etc. is improved. ζ, it is possible to prevent the occurrence of malfunction of the step motor.

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

vJ1図はステップモータの制(ill系の一般的なブ
ロック図、ft52図は本発明の一実施例の回路図であ
り、2は制御イイ号入力回路、P Cは7オトカプラ、
02はノイズ防止用コンデンサ、C1はコンテ゛ンサ、
Rは抵抗である。 代理人 jI−埋土 石[」]艮七 イ 1図 第2図
The vJ1 diagram is a general block diagram of the step motor control (ill system), the ft52 diagram is a circuit diagram of one embodiment of the present invention, 2 is a control No. input circuit, PC is a 7 automatic coupler,
02 is a noise prevention capacitor, C1 is a capacitor,
R is resistance. Agent jI - buried earth stone

Claims (1)

【特許請求の範囲】[Claims] (1)商用電源から電力供給をうけると共に、コントロ
ーラの発生する制御信号がフォトカプラを介して入力さ
れ、該制御信号に対応してステップモータの各巻線に流
れるコイル電流を、定められた順序でオン・オフ制御す
るステップモータ駆動装置の制御信号入力回路において
、上記フォトカプラの入力側に後続される一線と、出力
側の一線との間に接続されるノイズ防止用コンデンサを
備えたことを特徴とするステップモータ駆動装置の制御
信号入力回路。
(1) While receiving power from a commercial power source, a control signal generated by the controller is input via a photocoupler, and the coil current flowing through each winding of the step motor is controlled in a predetermined order in response to the control signal. A control signal input circuit for a step motor drive device for on/off control, comprising a noise prevention capacitor connected between a line following the input side of the photocoupler and a line on the output side. A control signal input circuit for a step motor drive device.
JP17880185A 1985-08-14 1985-08-14 Input circuit for control signal for drive of stepping motor Pending JPS6240095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17880185A JPS6240095A (en) 1985-08-14 1985-08-14 Input circuit for control signal for drive of stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17880185A JPS6240095A (en) 1985-08-14 1985-08-14 Input circuit for control signal for drive of stepping motor

Publications (1)

Publication Number Publication Date
JPS6240095A true JPS6240095A (en) 1987-02-21

Family

ID=16054883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17880185A Pending JPS6240095A (en) 1985-08-14 1985-08-14 Input circuit for control signal for drive of stepping motor

Country Status (1)

Country Link
JP (1) JPS6240095A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136539A (en) * 1976-05-10 1977-11-15 Sperry Rand Corp Digital data coupler
JPS6017176A (en) * 1983-07-11 1985-01-29 東レ株式会社 Adhesive treatment of polyester fiber material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136539A (en) * 1976-05-10 1977-11-15 Sperry Rand Corp Digital data coupler
JPS6017176A (en) * 1983-07-11 1985-01-29 東レ株式会社 Adhesive treatment of polyester fiber material

Similar Documents

Publication Publication Date Title
US4437053A (en) Gradient power supply
JPS62250827A (en) Overcurrent breaking circuit
WO1986003902A1 (en) Power supply with noise immune current sensing
JPS61240890A (en) Control circuit for variable magnetic reluctance motor
JPS6240095A (en) Input circuit for control signal for drive of stepping motor
US4456950A (en) Current spike protection circuit for switch-mode power supplies
US4178542A (en) Monitoring the operation status of an electrical component on the basis of an inherent pull up or pull down characteristic
EP0216039B1 (en) A control system for reversing the rotation of a field wound motor
US7609016B2 (en) Systems and methods for driving a motor
US6212051B1 (en) Pulse-width modulator current limiter
JP3221334B2 (en) Inductive load short circuit detector
JPH0143650Y2 (en)
JPS6010897A (en) Transmitter-receiver
US20070146016A1 (en) Signal output circuit and power source voltage monitoring device using the same
US2790915A (en) Flip-flop elements for control systems
JP3289815B2 (en) Disconnection detection device
JPH01204521A (en) Output interface circuit
JP2000253574A (en) Power supply line circuit
JPH03194477A (en) Self-diagnostic method for insulation resistance measuring device
JPS645853Y2 (en)
JP2970077B2 (en) Fault diagnosis circuit for current-carrying equipment
JPH05315933A (en) Output circuit
JP2987752B2 (en) Milk volume detection device for milking machine
JPS5835785A (en) Protection circuit for functional element for magnetic bubble element
JPS587921A (en) Driving system for pulse transformer