KR20010044993A - Led unit for identifing motion of emergency security switch - Google Patents

Led unit for identifing motion of emergency security switch Download PDF

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Publication number
KR20010044993A
KR20010044993A KR1019990048077A KR19990048077A KR20010044993A KR 20010044993 A KR20010044993 A KR 20010044993A KR 1019990048077 A KR1019990048077 A KR 1019990048077A KR 19990048077 A KR19990048077 A KR 19990048077A KR 20010044993 A KR20010044993 A KR 20010044993A
Authority
KR
South Korea
Prior art keywords
led
emergency
voltage
relay
identifing
Prior art date
Application number
KR1019990048077A
Other languages
Korean (ko)
Inventor
전보길
Original Assignee
신형인
금호산업 주식회사
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 신형인, 금호산업 주식회사 filed Critical 신형인
Priority to KR1019990048077A priority Critical patent/KR20010044993A/en
Publication of KR20010044993A publication Critical patent/KR20010044993A/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error

Abstract

PURPOSE: An LED device is provided to discriminate emergency switch operation in an easy manner in a shortest time period by arranging a combination of a resistance and an LED which operates at a voltage and current lower than those of the relay. CONSTITUTION: An LED device comprises a combination of an LED(2) which operates a weak voltage(0.5V to 3V) and current(1mA to 20mA), and a resistance(3) made up of a voltage lower than a relay driving voltage. Since the LED adopting a two-wire system turns off at a voltage lower than that of a relay(4), the LED turns off at a contact point closed state and turns on by the supplied DC power at a contact point open state where the circuit is disconnected by the operation of emergency switch.

Description

비상 안전스위치 동작 식별용 ＬＥＤ 장치{LED UNIT FOR IDENTIFING MOTION OF EMERGENCY SECURITY SWITCH}LED device for emergency safety switch operation identification {LED UNIT FOR IDENTIFING MOTION OF EMERGENCY SECURITY SWITCH}

본 발명은 기계의 비상 안전스위치의 동작여부 확인장치에 관한 것으로서, 특히 DC 2선식 방식으로 구성된 비상 안전스위치의 외함에 LED를 설치하여 비상스위치가 동작할 때 동작여부를 육안으로 식별 가능하도록 한 비상 안전스위치의 동작 식별용 LED장치에 관한 것이다.The present invention relates to a device for confirming the operation of the emergency safety switch of the machine, and in particular, by installing an LED in the enclosure of the emergency safety switch configured in the DC two-wire system, the emergency that the operation can be identified visually when the emergency switch operates The present invention relates to an LED device for identifying the operation of a safety switch.

기계장치의 배선방식을 3선식으로 할 경우, 꼬마전구나 네온램프를 사용하여 비상 S/W동작시 육안식별이 가능하지만, 대부분의 기계장치는 DC 2선식방식으로 되어있기 때문에 3선식으로 바꿀경우 과다한 비용발생 및 작업 시간상 문제점이 있다. 또한, DC 2선식인 경우 램프가 없기 때문에 비상스위치 동작시 동작여부를 육안으로 식별할 수 있는 수단이 없어 동작개소를 파악하는데 불필요한 시간이 소요되고 기계정지시간이 증가하는 하나의 원인으로 되어 문제점이 있었다.When the wiring method of the mechanical device is 3-wire type, it is possible to visually identify during emergency S / W operation by using a small electric bulb or neon lamp. However, since most of the mechanical devices are DC 2-wire type, they are changed to 3-wire type. There are excessive costs and work time problems. In addition, since there is no lamp in case of DC 2-wire type, there is no means to visually identify whether the operation is performed during emergency switch operation. there was.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출한 것으로서, 현재 대부분의 2선식 배선방식의 기계장치에 LED를 설치하여 비상 스위치(S/W)의 동작 개소를 최단시간에 용이하게 찾을 수 있게 하는 것을 목적으로 한다.The present invention has been made in order to solve the above problems, it is possible to easily find the operation point of the emergency switch (S / W) in the shortest time by installing the LED in most of the two-wire wiring system of the present device. For the purpose of

도 1은 본 발명에 따른 비상로프스위치 동작여부 식별용 LED 장치의 회로도,1 is a circuit diagram of the LED device for identifying whether the emergency rope switch operation according to the present invention,

도 2는 본 발명에 따른 비상로프스위치 LED설치부 개략도이다.Figure 2 is a schematic diagram of the emergency rope switch LED installation according to the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 리세트 버튼, 2 LED,1 reset button, 2 LEDs,

3 저항, 4 릴레이,3 resistors, 4 relays,

5 로프 연결고리.5 rope ties.

이하, 첨부도면에 의거하여 본 발명의 비상로프 S/W 동작여부 식별용 LED장치를 상세히 설명한다.Hereinafter, the LED device for identifying whether the emergency rope S / W operation of the present invention based on the accompanying drawings will be described in detail.

도 1은 본 발명에 따른 비상로프 스위치 동작여부 식별용 LED장치 회로도이고, 도 2는 본 발명에 따른 비상로프 스위치 LED취부 개략도로서, 상기 도면에서 도시하는 바와 같이 본 발명의 비상 안전스위치 동작여부 식별용 LED장치는 DC 2선식 방식으로 구성된 비상 S/W에 릴레이보다 낮은 전압 및 전류에서 발광되도록 LED(2)를 적정용량의 저항(3)을 사용하여 설치한 것이다.1 is a circuit diagram of the LED device for identifying the emergency rope switch operation according to the present invention, Figure 2 is a schematic diagram of the emergency rope switch LED mounting according to the present invention, the emergency safety switch operation identification of the present invention as shown in the figure The LED device for the installation is to install the LED (2) using a resistor (3) of the appropriate capacity to emit light at a voltage and current lower than the relay in the emergency S / W configured in the DC two-wire system.

본 발명은 미약한 전압 및 전류(0.5V, -3V, 1mA∼20mA)에서 동작가능한 상기 LED(2)와, 릴레이(4)를 구동시킬정도의 전압(5.2V)을 흘리지 않는 범위의 저항(3)을 조합한 것으로서, DC 2선식으로 구성된 배선방식의 상기 LED(2)가 릴레이(4)보다 낮은 전압에서도 발광하는 것을 이용하여 적정용량의 저항(3)과의 조합으로 상시닫힘 상태에서는 점등되지 않고, 접점열림 상태, 즉 비상 S/W동작으로 회로가 끊어진 상태에서는 DC전원을 공급받아서 LED가 켜지도록 구성한 것이다.According to the present invention, the LED 2 operable at a weak voltage and current (0.5V, -3V, 1mA to 20mA), and a resistance in a range that does not flow a voltage (5.2V) enough to drive the relay 4 3) is a combination of the LED 2 of the wiring system consisting of a DC 2-wire type, and emits light even at a voltage lower than the relay 4, so that the lamp is turned on in a normally closed state in combination with a resistor 3 having an appropriate capacity. Instead, the LED is turned on by receiving DC power when the contact is open, that is, when the circuit is broken by emergency S / W operation.

상기와 같이, 기존의 DC 2선식 방식으로 구성된 비상 로프 S/W에 상기 릴레이보다 낮은 전압 및 전류에서 발광가능한 LED를 적정용량의 저항과 조합하여 설치함으로써, 비상 S/W동작개소를 최단시간에 용이하게 찾을 수 있고, 설비의 불필요한 정지시간을 최소화할 수 있기 때문에, 가동율을 향상할 수 있다. 또한, DC 2선식으로 구성된 기존 라인에 큰 비용부담없이 적용할 수 있다.As described above, by installing an LED capable of emitting light at a lower voltage and current than the relay in combination with a resistor of an appropriate capacity, the emergency S / W operation point can be installed in the shortest time in the emergency rope S / W configured in the conventional DC two-wire system. Since it can be found easily and unnecessary downtime of a facility can be minimized, an operation rate can be improved. In addition, it can be applied to existing lines composed of DC 2-wire without any significant cost.

Claims (1)

비상 안전스위치의 동작 식별용 LED장치에 있어서,In the LED device for identifying the operation of the emergency safety switch, 미약한 전압 및 전류에서 발광가능한 LED와, 릴레이 구동전압보다 낮은 전압으로 만드는 저항을 조합하여, 상시닫힘 상태에서는 점등되지 않고, 접점열림 상태, 즉 비상 스위치 동작으로 회로가 끊어진 상태에서는 DC전원을 공급받아서 LED가 켜지도록 구성한 것을 특징으로 하는 비상 안전스위치 동작 식별용 LED 장치.By combining LEDs that can emit light at weak voltages and currents, and resistors that make the voltage lower than the relay driving voltage, DC power is supplied when the circuit is disconnected due to the contact open state, that is, the emergency switch operation. LED device for emergency safety switch operation identification, characterized in that configured to turn on the LED.
KR1019990048077A 1999-11-02 1999-11-02 Led unit for identifing motion of emergency security switch KR20010044993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990048077A KR20010044993A (en) 1999-11-02 1999-11-02 Led unit for identifing motion of emergency security switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990048077A KR20010044993A (en) 1999-11-02 1999-11-02 Led unit for identifing motion of emergency security switch

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KR20010044993A true KR20010044993A (en) 2001-06-05

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Application Number Title Priority Date Filing Date
KR1019990048077A KR20010044993A (en) 1999-11-02 1999-11-02 Led unit for identifing motion of emergency security switch

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890003573Y1 (en) * 1983-06-20 1989-05-27 산요덴끼 가부시기가이샤 A vending machine
JPH07320580A (en) * 1994-05-27 1995-12-08 Nissin Electric Co Ltd Drive circuit unit of motor operating device for switch
KR960012238U (en) * 1994-09-05 1996-04-17 엄이호 Emergency stop switch
KR19990034943U (en) * 1999-05-20 1999-09-06 심윤국 Switch box
KR19990036688U (en) * 1998-02-26 1999-09-27 기길웅 Operation status display circuit of switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890003573Y1 (en) * 1983-06-20 1989-05-27 산요덴끼 가부시기가이샤 A vending machine
JPH07320580A (en) * 1994-05-27 1995-12-08 Nissin Electric Co Ltd Drive circuit unit of motor operating device for switch
KR960012238U (en) * 1994-09-05 1996-04-17 엄이호 Emergency stop switch
KR19990036688U (en) * 1998-02-26 1999-09-27 기길웅 Operation status display circuit of switch
KR19990034943U (en) * 1999-05-20 1999-09-06 심윤국 Switch box

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