SU723517A1

SU723517A1 - Device for monitoring relay switching device

Info

Publication number: SU723517A1
Application number: SU782627955A
Authority: SU
Inventors: Юрий Александрович Шишляков; Надежда Ивановна Никитина
Original assignee: Предприятие П/Я М-5873
Priority date: 1978-06-15
Filing date: 1978-06-15
Publication date: 1980-03-25

Description

Изобретение относится к контрольноизмерительной технике и может быть использовано в различных системах автоматики, содер» жащих релейные коммутаторы.The invention relates to measurement technology and can be used in various automation systems containing relay switches.

Известно устройство для контроля релейного коммутатора, содержащее счетчик, диоды, резисторы и транзисторы [ 1 ].A device for monitoring a relay switch containing a counter, diodes, resistors and transistors [1].

Однако в устройстве, имеющем сложную конструкцию, отсутствует самоконтроль.However, in a device having a complex structure, there is no self-control.

Известно также устройство для контроля релейного коммутатора, Содержащее индикаторы, диоды, аноды которых через последовательно соединенные соответствующие первые резисторы и замыкающие контакты реле под- ,5 ключены к первому выводу второго резистора, второй вывод которого через источник питания соединен с катодами диодов, триггер, один выход которого подключен к первому входу элемента И, вторым входом соединенного со 39 входом устройства, а выходом — со входом счетчика [2].A device for monitoring a relay switch is also known. It contains indicators, diodes, the anodes of which are connected in series through the corresponding first resistors and make relay contacts, 5 are connected to the first output of the second resistor, the second output of which is connected to the diode cathodes through a power source, a trigger, one the output of which is connected to the first input of the And element, the second input connected to the device input 39, and the output to the counter input [2].

Однако устройство имеет низкую надеж ность.However, the device has low reliability.

Цель изобретения — повышение надежности устройства.The purpose of the invention is to increase the reliability of the device.

Поставленная цель достигается тем, что устройство содержит дифференцирующий элемент и пороговый элемент, вход которого подключен к первому выводу второго резистора, а выход — к третьему входу элемента И, подсоединенного выходом к первому входу триггера, второй вход которого через дифференцирующий элемент подключен к первому выводу второго резистора, а выход через первый индикатор подключен к выводу источника питания, другой вывод которого через второй индикатор подсоединен к выходу порогового элемента.This goal is achieved in that the device contains a differentiating element and a threshold element, the input of which is connected to the first output of the second resistor, and the output to the third input of the element And connected to the first input of the trigger, the second input of which is connected through the differentiating element to the first output of the second resistor, and the output through the first indicator is connected to the output of the power source, the other output of which through the second indicator is connected to the output of the threshold element.

На чертеже изображена принципиальная схема устройства.The drawing shows a schematic diagram of a device.

Устройство для контроля релейного коммутатора включает диоды Ц—In, первые резисторы 21—2п, замыкающие контакты реле 3j— Зп, второй резистор 4, дифференцирующий элемент 5, пороговый элемент 6, триггер 7, первый и второй индикаторы 8 и 9, элемент И 10, коммутатор 11, счетчик 12.The device for monitoring the relay switch includes diodes Ts — In, first resistors 21–2p, closing contacts of the relay 3j – Zp, second resistor 4, differentiating element 5, threshold element 6, trigger 7, first and second indicators 8 and 9, element I 10 , switch 11, counter 12.

Устройство работает следующим образом.The device operates as follows.

В исходном состоянии схемы на входах элемента И 10 присутствуют два сигнала, поступающие с порогового элемента 6 и триггера 7.In the initial state of the circuit at the inputs of the element And 10 there are two signals coming from the threshold element 6 and trigger 7.

По приходе сигнала с тактового датчика управляющих импульсов включается одно из реле 3, замыкая свои контакты. В элементе 5 происходит накопление энергии, а триггер 7 сигналом с выхода элемента И 10 переходит во второе состояние. В момент размыкания контактов реле 3 сигналом с элемента 5 триггер 7 возвращается в исходное состояние. По приходе последующего сигнала с датчика управляющих сигналов срабатывает другое реле 3, работа которого контролируется аналогично.Upon receipt of the signal from the clock sensor of the control pulses, one of the relay 3 is turned on, closing its contacts. In the element 5, energy is accumulated, and the trigger 7 signal from the output of the element And 10 goes into the second state. At the moment of opening the contacts of the relay 3 signal from the element 5, the trigger 7 returns to its original state. Upon the arrival of the subsequent signal from the control signal sensor, another relay 3 is activated, the operation of which is controlled in a similar way.

При Несрабатывании одного из реле отсут-, ствие сигнала с элемента 5 оставляет» триггер 7 в перевернутом состоянии. Горит индикатор 8. Сигналы запуска реле на счетчик 12 коммутатора 11 не поступают.If one of the relays fails, the signal from element 5 leaves trigger 7 in an inverted state. Indicator 8 is on. Relay start signals are not received to counter 12 of switch 11.

Счетчик 12 останавливается'. При включении двух и более реле повышение напряжения на резисторе 4 обеспечивает срабатывание элемента 6, включение индикатора 9. Сигналы на третьем входе и выходе элемента И 10 отсутствуют. Счетчик 12 останавливается, на индикаторном табло коммутатора И высвечивается номер неисправного реле. Изобретение позволяет добиться упрощения устройства за счет использования одного источника питания, что приводит к повышению его надежности.Counter 12 stops. ' When two or more relays are turned on, an increase in voltage across the resistor 4 ensures that the element 6 responds and the indicator 9 is turned on. There are no signals at the third input and output of the And 10 element. The counter 12 stops, on the indicator board of the switch AND the number of the faulty relay is displayed. The invention allows to simplify the device by using a single power source, which leads to an increase in its reliability.

Claims

The invention relates to reference measurement technology and can be used in various automation systems containing relay switches. A device for controlling a relay switch is known, which contains a counter, diode resistors and transistors 1. However, in a device having a complex structure, there is no self-control. It is also known a device for controlling a relay switch containing indications: diodes, the anodes of which are connected via series-connected respective first resistors and closing contacts of the relay connected to the first terminal of the second resistor whose second terminal is connected to the cathodes of the diodes through a power source, a trigger the stroke of which is connected to the first input of the input I, the second input connected to the input of the device, and the output to the input of counter 2. However, the device has a low reliability. ness The purpose of the invention is to increase the reliability of the device. The goal is achieved by the fact that the device contains a differentiating element and a threshold element, the input of which is connected to the first output of the second resistor, and the output to the third input of the And element connected by the output to the first input of the trigger, the second input of which is connected to the first input . the second resistor and the output through the first indicator is connected to the output of the power supply, the other output of which is connected via the second indicator to the output of the threshold element. The drawing shows a schematic diagram of the device. The device for controlling a relay switch includes li-In diodes, the first resistor 2i-2p, the closing contacts of the relay 3ts-Zp, the second resistor 4, the differentiating element 5, the threshold element 6, the trigger 7, the first and second indicators 8 and 9, the element 10. , switch 11, counter 12. 3 The device operates as follows. In the initial state of the circuit at the inputs of the element And 10 there are two signals coming from the threshold element 6 and the trigger 7. Ilq one of the relay 3 switches on the arrival of the signal from the clock sensor of the control pulses, and contacts its own. In element 5 there is an accumulation of energy, and the trigger 7 by a signal from the output of the element And 10 enters the second state. At the time of the opening of the contacts of the relay 3 by the signal from the element 5, the trigger 7 returns to the initial state. Upon the arrival of a subsequent signal from the control signal sensor, the other relay 3 is activated, the operation of which is controlled in a similar way. If one of the relays fails, the absence of a signal from element 5 leaves trigger 7 in an inverted state. The indicator 8 is lit. The relay start signals are not received at the counter 12 of the switch 11. Counter 12 stops. When two or more relays are turned on, the voltage across the resistor 4 ensures the operation of the element 6, the turning on of the indicator 9. There are no signals at the third input and output of the And 10 element. Counter 12 wasps: is repaired, on the indicator board of the switch And the number of the faulty relay is displayed. The invention makes it possible to achieve a simplification of the device by using a single power source, which leads to an increase in its reliability. The invention The device for controlling a relay switch, containing indicators, diodes, anodes of which through sequentially connected first resistors and short-circuiting the relay contacts are connected to the first drive of the second resistor, the second output of which is connected to the cathodes of the diodes through a power source, a trigger, one output of which is connected to the first input of the element I, the second input connected to the input of the device, and the output to the input of the counter, characterized in that, in order to increase the reliability of the device, but contains a differentiating element and a threshold element, the input of which is connected to the first output of the second resistor, and the output to the third input of the element I connected by the output to the first input of the trigger, the second input of which through the differentiating element is connected to the first output of the second resistor, and the output through the first the indicator is connected to the output of the power supply, the other output of which is connected via the second indicator to the output of the threshold element. Sources of information taken into account in the examination 1. Debt V. A. and others. Switching devices of automatic control systems. M., Energie, 1969, p. 77.

2. USSR author's certificate number 349981, cl. G 05 23/02, 1972 (prototype).