SU824149A1

SU824149A1 - Electromagnetic relay testing device

Info

Publication number: SU824149A1
Application number: SU792778122A
Authority: SU
Inventors: Александр Геннадьевич Ищейкин; Аухат Муртазинович Муртазин
Original assignee: Предприятие П/Я В-2769
Priority date: 1979-06-11
Filing date: 1979-06-11
Publication date: 1981-04-23

Description

Изобретение относится к технике' автоматического контроля и предназначено для использования в системах автоматизированного контроля элект- $ ромагнитных контактных элементов..The invention relates to techniques for automatic control and is intended for use in automated control systems of electromagnetic contact elements

Известно устройство для проверки электромагнитных реле, действие которого основано на принципе самоконтроля испытываемых реле путем последовательного опроса импульсами генератора и индикации неразмыкания (залипания) контактов с помощью индикаторов контактирования [1] .A device for checking electromagnetic relays is known, the action of which is based on the principle of self-monitoring of tested relays by sequential polling of generator pulses and indication of non-opening (sticking) of contacts using contact indicators [1].

Однако в данном устройстве отсутствует возможность одновременной индикации состояния размокающего и замыкающего контактов, что, при увеличении числа контактных групп, обусловливает громоздкость устройст- ва и неудобство его эксплуатадии *0 из-за низкого быстродействия.However, this device does not have the ability to simultaneously indicate the status of the softening and closing contacts, which, with an increase in the number of contact groups, makes the device cumbersome and inconvenient to operate * 0 due to low speed.

Наиболее близким к данному изобретению техническим решением является устройство для проверки электро- __ магнитных реле, содержащее блок контроля, подключенный входами к первым входам устройства и первому выходу блока управления, а первыми выходами - ко входу блока управления и источника тока, соединенному через вентильные элементы с первым), выходами устройства, вторые входы кото рого соединены через ключи с первыми входами распределителя импульсов, подключенного вторым входом ко второму выходу блока управления, третий выход которого соединен через коммутатор со вторыми выходами устройства й .Closest to this invention, the technical solution is a device for checking electromagnetic __ magnetic relays, comprising a control unit connected by inputs to the first inputs of the device and the first output of the control unit, and the first outputs to the input of the control unit and current source, connected through valve elements with first), the outputs of the device, the second inputs of which are connected via keys to the first inputs of the pulse distributor, connected by the second input to the second output of the control unit, the third output of which It is connected via a switch with the second outputs of the device.

Недостатком данного устройства является затрудненность определения номера неисправной контактной группы и также отсутствует возможность одновременной индикации состояния размыкающих и замыкающих контактов испытываемого реле, что снижает его быстродействие и точность.The disadvantage of this device is the difficulty in determining the number of a faulty contact group and there is also no possibility of simultaneously indicating the state of the opening and closing contacts of the tested relay, which reduces its speed and accuracy.

Цель изобретения -г повышение быстродействия и точности устройства.The purpose of the invention is to increase the speed and accuracy of the device.

Указанная цель достигается тем, что в устройство для проверки электромагнитных реле, содержащее блок контроля, подключенный входами к первым входам устройства· и первому выходу блока управления, а первыми, выходами - ко входу блока управления и источника тока, соединенному через вентильные элементы с первыми выходами устройства, вторые выходы которого соединены через ключи с первыми входами распределителя импульсов, подключенного вторым входом.ко второму .выходу блока управления, третий выход которого соединен через коммутатор со вторыми’ выходами устройства, введены регистры, элементы И, элементы НЕ и элементы ИЛИ, подключенные выходами через соответствующие первые элементы И, другие входы которых соединены с первыми входами распределителя импульсов, к одним входам соответствующих регистров, подключенных· другими входами к четвертому выходу блока управления,.пятые выходы которого соединены с первыми входами вторых и третьих элементов И, подключенных вторыми входами ко второму выходу блока контроля, причем третьи входы вторых и третьих элементов И соединены с первыми входами устройства соответственно через элементы НЕ и непосредственно.This goal is achieved by the fact that in the device for testing electromagnetic relays containing a control unit connected by inputs to the first inputs of the device · and the first output of the control unit, and the first, outputs - to the input of the control unit and the current source connected through valve elements to the first outputs devices, the second outputs of which are connected via keys to the first inputs of the pulse distributor connected to the second input. to the second. output of the control unit, the third output of which is connected via a switch to the second with the device’s outputs, registers, AND elements, NOT elements and OR elements, connected by outputs through the corresponding first AND elements, other inputs of which are connected to the first inputs of the pulse distributor, to one input of the corresponding registers connected by other inputs to the fourth output of the control unit The fifth outputs of which are connected to the first inputs of the second and third elements AND connected by the second inputs to the second output of the control unit, the third inputs of the second and third elements AND connected to the first E-input device, respectively, by elements not directly.

На чертеже показана функциональная схема устройства.The drawing shows a functional diagram of the device.

Устройство содержит блок 1 управления, коммутатор (блок коммутации) 2> клеммы (вторые выходы) 3 для подключения обмотки проверяемого реле, ключи 4, распределитель 5 импульсов, индикаторные лампы 6, блок 7 контроля, блоки 8 анализа неразмыкания и незамыкания 9; вентильные элементы 10, источник 11 тока, элементы 12 и 13 ИЛИ, первые элементы И,объединенные, в группы (блоки) 14 и 15, регистры 16 и 17, вторые элементы 18 и 19 И, элементы 20 и 21 НЕ и третьи элементы 22 и 23 И, при этом блоки 8 анализа неразмыкания образованы вторыми элементами 18 и 19 И элементов 12 ИЛИ, а блок 9 анализа неразмыкания и третьими элементами 22 и 23 И и элементов 13 ИЛИ символами Р и 3 обозначены соответственно размыкающие и замыкающие контакты проверяемого . реле, П-переключающий контакты (соединяемые со вторыми входами устройства ) ·The device comprises a control unit 1, a switch (switching unit) 2> terminals (second outputs) 3 for connecting the winding of the tested relay, keys 4, a pulse distributor 5, indicator lamps 6, a control unit 7, non-opening and non-closing analysis units 8; valve elements 10, current source 11, elements 12 and 13 OR, first elements AND combined into groups (blocks) 14 and 15, registers 16 and 17, second elements 18 and 19 AND, elements 20 and 21 NOT and third elements 22 and 23 AND, while the non-opening analysis units 8 are formed by the second elements 18 and 19 AND of the 12 OR elements, and the non-opening analysis unit 9 and the third elements 22 and 23 AND and the 13 elements OR by the symbols P and 3 indicate the opening and closing contacts of the tested one, respectively. relay, P-switching contacts (connected to the second inputs of the device)

Устройство работает следующим образом.The device operates as follows.

toto

После подключения реле с.помощью контактного устройства (на чертеже контактное устройство не показано) к клеммам 3 коммутатора 2, по сигналу с блока 1 управления запускается распределитель 5 импульсов, блок 7 контроля и коммутатор 2. С выхода Контроль срабатывания блока 1 управления подготавливается разрешение элементов 19 и 23 И по одному из входов. По сигналам с блока 7 контроля на выходе источника 11 тока устанавливается напряжение, обеспечивающее требуемый ток через контакты контролируемого реле, а на обмотке контролируемого реле через коммутатор 2 - ступенчато-возрастающее напряжение.After connecting the relay with the help of the contact device (the contact device is not shown in the drawing) to terminals 3 of switch 2, the signal from control unit 1 starts the pulse distributor 5, control unit 7 and switch 2. From the control output of the control unit 1, a resolution of elements is prepared 19 and 23 And one of the entrances. According to the signals from the control unit 7, a voltage is established at the output of the current source 11, which provides the required current through the contacts of the controlled relay, and a stepwise increasing voltage is applied to the coil of the controlled relay through switch 2.

Импульсами с выходов распределителя 5 импульсов последовательно открываются ключи Ц-Ци при срабатывании I-ой контактной группы, т.е. когда контакт ГЦ с контактам Р; разомкнулся, а с контактом З^замкнулся, ток от источника 11 через Диод 10 2 контакты. ТЦ-3,[ и ключ 4 прЬтекает на общую шину, и на катоде ; появляется отрицательный импульс поступающий в блок контроля.By pulses from the outputs of the 5-pulse distributor, the Q-Qi keys are opened sequentially when the I-th contact group is triggered, i.e. when the contact of the HZ with contacts P; opened, and with the contact Z ^ closed, the current from the source 11 through the Diode 10 2 contacts. TC-3, [and key 4 flows onto a common bus, and at the cathode; a negative pulse appears entering the control unit.

Если при напряжении на диода 10$ !If the voltage on the diode is $ 10!

эбмотке контролируемого реле, превышакицем не все конзапример гная а 7 контак по срав блоке напряжения срабатывания, тактные группы сработали, не сработала первая контак группа, то на входе 4 блок роля появляется сигнал Бр батыванию, и элемент 19 И 8 анализа неразмыкания и элемент 23 И в блоке 9 анализа неразмыкания оказываются разрешенными по двум входам. jThe coil of the monitored relay doesn’t have more than just a pin, but 7 contacts on the right side of the operating voltage block, the clock groups worked, the first contact did not work, then the input of the role block appears, the signal for operation, and element 19 AND 8 of the non-opening analysis and element 23 AND in block 9 of the analysis of non-opening are allowed on two inputs. j

Поэтому, когда импульсом с первого выхода распределителя импульсов 5 открывается ключ 4) , отрицательный импульс с катода диода|10 через элементы; 21 НЕ, 19 И и 12 ЙЛИ поступает на первые входы групши элементов 14 И. Импульс с первого выхода распределителя 5 проходит Через элемент 14 И, записывая единицу в разряд регистра 16, загорается лампа 6χ - индицируя, что в этом|режиме .'контакты. П ^-Р ₄ . не разомкнулись.Therefore, when a pulse 4) opens with a pulse from the first output of the pulse distributor 5), a negative pulse from the cathode of diode | 10 through the elements; 21 NOT, 19 AND, and 12 ILI arrives at the first inputs of a group of elements 14 I. The pulse from the first output of the distributor 5 passes through element 14 And, writing a unit to the discharge of register 16, the 6χ lamp lights up, indicating that in this | mode. ' . P ^ -P ₄ . did not open.

Одновременно положительным сигналом с катода диода 10g, при открывании ключа.44 (остальные ключи закрыты), разрешается элемент <2 3 И далее, через элемент 13 ИЛИ - группа элементов 15 И. Тогда по импульсу с первого выхода распределителя 5 в разряд 17j регистра 17 записывается единица, и загорается лампр б>(, индицируя, что контакты П^-з/ не эамкнулись. В том случае, когдр контактные группы сработали при напряжении, не превышающим напряжения срабатывания реле по техническим условиям на контролируемое реле, блок контроля 7 срабатывает и запоминает результат контроля, и на выходе брока 1 управления появляется сигнар Контроль отпускания. По этому ^сигналу на обмот.ке контролируемого реле устанавливается ступенчато-убывающее напряжение, а элементы 18 и решаются по соответствующимAt the same time, with a positive signal from the cathode of the diode 10g, when the key is opened. 44 (the remaining keys are closed), the element <2 3 is allowed And then, through the element 13 OR - a group of elements 15 I. Then, by the pulse from the first output of the distributor 5 to the discharge 17j of register 17 a unit is recorded, and the lamp b> (lights up, indicating that the contacts П ^ -З / did not close. In the case when the contact groups worked at a voltage not exceeding the voltage of the relay according to the specifications for the controlled relay, the control unit 7 is activated and remembers the result At the control, and at the output of control block 1, the Release control signal appears. According to this signal, a stepwise decreasing voltage is set on the winding of the controlled relay, and the elements 18 are solved according to the corresponding

Импульсами с выходов рас теля 5 последовательно открываются ключи 4^-4_х, и при опускании <^ой контактной группы, т.е. когда контакт П(с контактом 3i разомкнулся а с контактом Pi - замкнулся. . _ точника 11 через диод IO4, ц контакты Π^-Pj и ключ 4 протекает τόκ на общую шину и на катоде дйода 10^ появляется отрицательный имрульс, поступающий в блок 7 контроря.The pulses from the outputs of the solvent 5 sequentially open the keys 4 ^ -4 _x , and when lowering the <^ th contact group, i.e. when the contact П (with the contact 3i opened and with the contact Pi - closed. _ of the point 11 through the IO4 diode, the contacts Π ^ -Pj and the key 4 flows τόκ to the common bus and a negative imulse appears on the cathode of the diode 10 ^ entering the block 7 counter.

И разi входам. Пределиf _tTQ ОТ ИС5 замыкающих контактов, что повышает производительность, точность и качество контроля.And once the inputs. The limits of _t TQ FROM IS5 make contacts, which improves the performance, accuracy and quality of control.

•Если при напряжении, меньшем напряжения отпускания по техническим условиям на контролируемое реле, не все контактные группы отпустили, например не отпустила первая контактная группа, то на выходе блока 7 контроля появляется сигнал Брак по отпусканию, и элемент 18 И блока 8, элемент' 22 И блока 9 оказываются разрешенными по двум входам.• If, at a voltage lower than the release voltage, according to the technical specifications for the monitored relay, not all contact groups are released, for example, the first contact group is not released, then the output of the control unit 7 displays the reject signal, and element 18 AND block 8, element '22 And block 9 are allowed on two inputs.

Поэтому когда импульсом с первого выхода распределителя 5 открывается ключ 4_<( отрицательный импульс с катода диода 10ρ через элементы 20 НЕ, 18. И и 12 ИЛИ поступает на входы элементов 14 И. Импульс проходит только через элемент 14 цИ, и в разряд 16 ц записывается 1,' загорается лампа 6ц,.индицируя, что в режиме контроля отпускания реле контакты Рц-Зц не разомкнулись.Therefore, when the pulse from the first output of the distributor 5 opens the key 4 _<(a negative pulse from the cathode of the diode 10ρ through the elements 20 NOT, 18. And and 12 OR is supplied to the inputs of the elements 14 I. The pulse passes only through the element 14 cI, and to the discharge 16 c 1, '6c lamp lights up, indicating that in the relay release monitoring mode the contacts RC-Zc did not open.

• Одновременно положительным сигналом с катода диода 10< разрешается элемент 22 И и далее группа элементов 15 И. Тогда импульсом с элемента 15ц И в разряд 17ц записывается 1, загорается лампа 6 , индицируя, что в этом режиме контакты Пц-Рц не замкнулись.• At the same time, a positive signal from the cathode of the diode 10 <resolves an element 22 AND and then a group of elements 15 I. Then, an impulse from an element 15ts And into the 17ts discharge records 1, the lamp 6 lights up, indicating that in this mode the PC-RC contacts are not closed.

Если при напряжении, не превышающем напряжения отпускания реле по ТУ все контактные группы отпустили, то блок 7 контроля запоминает результат контроля и переходит на контроль других параметров.If at a voltage not exceeding the release voltage of the relay according to the technical specifications all contact groups are released, then the control unit 7 remembers the result of the control and switches to the control of other parameters.

При сваривании контактной группы, например первой группы, контакт Пц замыкается одновременно с контактами Рц и Зц, загорается только лампа бц, а лампа б( не горит.When welding a contact group, for example, the first group, the contact ПЦ closes simultaneously with the contacts РЦ and Зц, only the lamp бЦ lights up, and the lamp б (does not light.

При отсутствии контактной группы, например первой группы, контакт Пц не замкнут с Р^ и не замыкается с Зц, в этом случае загорается лампа 6£, а лампа 6 ц не горит.In the absence of a contact group, for example, the first group, the contact Пc is not closed with Р ^ and does not close with Зс, in this case the lamp 6 £ lights up, and the lamp 6 Ц does not light.

Таким образом, в предлагаемом •устройстве имеется возможность оперативного определения номеров неисправ-д$ ных контактных групп с одновременной индикацией состояния размыкающих иThus, in the proposed • device, it is possible to quickly determine the numbers of faulty contact groups with a simultaneous indication of the state of the disconnecting and

Claims

The invention relates to an automatic control technique and is intended for use in automated control systems for electromagnetic contact elements. A device for testing electromagnetic relays is known, the operation of which is based on the principle of self-control of test relays by sequential polling of the oscillator and indication of disconnection (pinning) of contacts with using contact indicators. However, in this device there is no possibility of simultaneous indication of the state of the soaking and closing contacts, which, with an increase in the number of contact groups, makes the device cumbersome and inconvenient in its operation due to low speed. The closest technical solution to this invention is a device for testing electr magnetic relays, which contains a power unit connected to the first inputs of the device and the first output of the control unit, and the first outputs to the input of the control unit and the current source connected through valve elements with the first outputs of the device, the second inputs of which are connected via switches to the first inputs of the pulse distributor connected by the second input to the second input of the control unit, the third output of which It is connected via a switch with the second outputs of the 2J device. The disadvantage of this device is the difficulty in determining the number of the faulty contact group and it is also not possible to simultaneously indicate the opening and closing status of the tested relay, which reduces its speed and accuracy. The purpose of the invention is to increase the speed and accuracy of the device. This goal is achieved in that a device for testing electromagnetic relays containing a control unit connected by inputs to the first inputs of the device and the first output of the control unit, and the first outputs to the input of the control unit and the current source connected through valve elements to the first outputs devices whose second outputs are connected via keys to the first inputs of the pulse distributor connected by a second input to the second output of the control unit, the third output of which is connected through a switch The device’s outputs have entered registers, elements AND, elements NOT and elements OR connected by outputs through corresponding first elements AND, the other inputs of which are connected to the first inputs of the pulse distributor, to one input1 “1 corresponding registers connected by other inputs to the fourth output control unit, .pty outputs of which are connected to the first inputs of the second and third elements AND connected by the second inputs to the second output of the control unit, and the third inputs of the second and third elements AND are connected to the first pvym device inputs, respectively, through the elements and not directly. The drawing shows the functional diagram of the device. The device contains a control unit 1, a switch (switching unit) 2 (second outputs) 3 for connecting the winding of the relay to be tested, keys 4, a distributor 5 pulses, indicator lamps 6, a control unit 7, an uncoupling and non-analyzing unit 8; valve elements 10, current source 11, elements 12 and 13 OR, first AND elements combined into groups (blocks 14 and 15, registers 16 and 17, second elements 18 and 19 AND, elements 20 and 21 of HE and third elements 22 and 23 And, while the unshare unshare block is formed by the second elements 18 and 19 AND elements 12 OR, and the unscanned analysis block 9 is formed by the third Elements 22 and 23 of the IL and elements 13 OR by the symbols P and 3 are respectively the opening and closing contacts of the relay being tested, - switching contacts (connected to the second inputs of the device. The device works After connecting the relay with the aid of a contact device (the contact device is not shown in the drawing) to terminals 3 of switch 2, the signal from control unit 1 starts a distributor of 5 pulses, control unit 7 and switch 2. From the output, control response of the unit 1 of the control, the resolution of elements 19 and 23 is prepared one by one and inputs.The signals from the control unit 7 at the output of the current source 11 are set to the voltage that provides the required current through the contacts of the monitored relay, and we control the winding relay through switch 2 - step-increasing voltage. Pulses from the outputs of the RF distributor of 5 pulses successively open the keys to the start of the i-th contact group, i.e. when contact T7 with contact Pi is open, and with contact Z is closed, the current from source 11 through Diode has 10 2 contacts. and key 4 is pressed onto a common bus and at the cathode | diode 10 a negative pulse appears, which enters the control unit. If, when the voltage on the actuator controlled by the relay turns out to be the trigger voltage, all contact groups did not work, for example, the first contact group did not work, then the fault signal on the input of the control unit 7 and the element 19 of the unfollow analysis unit 8 And the source 23 And in block 9 of the analysis of the disconnection are allowed to two inputs. Therefore, when the pulse from the first output of the pulse distributor 5 opens the key 4, the negative pulse from the cathode of the diode j10 through the elements; 21 NOT, 19 AND, and 12 OR enters the first entrances of the group of elements 14 I. An impulse from the first output of the distributor 5 passes through the element 14 AND, writing a unit to the register bit 16, lamp 6 lights up ((- indicating that in this | mode contacts were not opened. Simultaneously with a positive signal from the cathode of the lOg diode, when opening the key 4 (the rest of the keys are closed), element 23 is allowed And then, through element 13 OR - a group of elements 15 I. Then, by the pulse from the first output of the distributor 5 The bit of the 171 register 17 is recorded by the unit, and the lamp 6 lights up. - (, indicating that the contacts did not close. In the case when the contact rpyniHJ triggered at a voltage not exceeding the response voltage of the relay according to the technical conditions of the controlled relay, the control unit .7 activates and stores the result of the control, and At the output of the control, until 1 control appears, a release control signal appears. On this signal, a step-down voltage is applied to the winding of the monitored relay, and elements 18 and | 29 And are resolved by correspondence | entrances. The pulses from the outputs of the distributor 5 successively open the keys, and during lowering they {the contact group, i.e. when the contact by contact 3i is open, and with contact Pi it is closed then from source 11 through diode 10, and contacts P | -P and key 4 current is flowing to the common bus and a negative pulse arrives in block 7 on the cathode of diode 10 kontpoJiI. If, at a voltage lower than the release voltage for a controlled relay, not all contact groups were released, for example, the first contact group was not released, then the output of control unit 7 is a release signal, and element 18 AND block 8 , element 22 and block 9 are allowed by two inputs. Therefore, when the key 4 opens with a pulse from the first output of the distributor 5, the negative pulse from the cathode of the diode J2 through the elements 20 NOT, 18, AND and 12 OR enters the input element 14 I. The pulse passes only through the element, and 1 is recorded in bit 16 , the lamp bc lights up, indicating that in the monitoring mode of releasing the relays P / | -3 did not open. At the same time, element 22 is resolved by a positive signal from the cathode of diode 10. Then, a group of elements 15 I. Then a pulse from element 15 and discharge 17 records 1, lamp 6 lights up, indicating that the contacts did not close in this mode. If, for a hsenia voltage that does not exceed the release voltage of the relay according to the specifications, all contact groups are released, the control unit 7 memorizes the result of the control and proceeds to control other parameters. When welding a contact group such as the first group, contact P closes simultaneously with contacts P and 3 {, only lamp 6 lights up and lamp 6 does not light up. In the absence of a contact group such as the first group, contact P, | does not close with P / and does not close with 3, in the case of an e-mail, lamp 6 lights up and Ls1mpa 6 does not light up. Thus, in the proposed device, it is possible to promptly determine the numbers of faulty contact groups with simultaneous indication of the state of the opening and closing contacts, which improves the performance, accuracy and quality of control. Formula of an elementary device A device for testing electromagnetic relays containing a control unit connected by inputs to the first inputs of the device and the first output of the control unit, and the first outputs to the input of the control unit and current source connected through valve elements to the first outputs of the device, the second inputs of which connected via keys to the first inputs of the pulse distributor connected by a second input to the second output of the control unit, the third output of which is connected via a switch to the second outputs of devices, characterized in that, in order to improve the speed and accuracy of the device, it contains registers, AND elements, NOT elements and OR elements connected by outputs through corresponding first AND elements, the other inputs of which are connected to the first inputs of a pulse distributor, to the same inputs registers connected by other inputs to the fourth output of the control unit, the fifth outputs of which are connected to the first inputs of the second and third AND elements connected by the second inputs to the second output of the control unit l, wherein the third inputs of the second and third AND elements are connected to first inputs of the device, respectively, by elements not directly. Sources of information taken into account in the examination 1. USSR author's certificate №408280, cl. G 05 B 23/02, 1973.

2. USSR author's certificate in application number 2615611/24, cd. G 05 B 23/02, 04/05/78.