CN206946227U - Midsequent control circuit - Google Patents
Midsequent control circuit Download PDFInfo
- Publication number
- CN206946227U CN206946227U CN201720833070.4U CN201720833070U CN206946227U CN 206946227 U CN206946227 U CN 206946227U CN 201720833070 U CN201720833070 U CN 201720833070U CN 206946227 U CN206946227 U CN 206946227U
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- Prior art keywords
- normally
- contactor
- contact
- normally opened
- closed contact
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Abstract
The utility model discloses midsequent control circuit, including relay, the first A.C. contactor and the second A.C. contactor, relay includes relay coil, the first normally opened contact, the second normally opened contact, the first normally-closed contact；First A.C. contactor includes first contactor coil, 3rd normally opened contact, 4th normally opened contact and the second normally-closed contact, second A.C. contactor includes second contactor coil, 5th normally opened contact, 3rd normally-closed contact and the 4th normally-closed contact, relay normally closed contact concatenates with contactor normally-closed contact, when first time, signal occurred, first contactor coil is through the first normally-closed contact, 4th normally-closed contact obtains electric adhesive, and by the 4th normally opened contact self-sustaining, first motor connects electric operation, until cut-out first contactor coil power, first motor is stopped.The utility model circuit structure is simple, and the automation loop control to two equipment is realized by a relay and two A.C. contactors.
Description
Technical field
It the utility model is related to electric automatic control field, more particularly to midsequent control circuit.
Background technology
In electric automatization, the electric wiring for generally solving two equipment rotation works is to introduce long delay time relay
Device or integrated circuit (IC) programme-control.The shortcomings that both schemes is complex, and element used is more, increase installation, dimension
The difficulty repaiied, draws high production cost.Table below lists the comparison of midsequent and other control modes：
It can be seen that the control mode of midsequent has in fact in the electric wiring for solving two equipment automatic alternate the Cooperation Works
Border application value.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide midsequent control circuit, and it can be with
The circuit of the mode of middle relay and two A.C. contactor compositions, so that it may realize the control of two electrical equipments.
The purpose of this utility model is realized using following technical scheme：
Midsequent control circuit, it is characterised in that including relay, the first A.C. contactor and the second A.C. contactor,
The relay includes relay coil, the first normally opened contact, the second normally opened contact, the first normally-closed contact；First exchange
Contactor includes first contactor coil, the 3rd normally opened contact, the 4th normally opened contact and the second normally-closed contact, the second ac contactor
Device includes second contactor coil, the 5th normally opened contact, the 3rd normally-closed contact and the 4th normally-closed contact；3rd normally opened contact
One end the zero line of alternating current is connected with one end of the 3rd normally-closed contact, the other end of the 3rd normally-closed contact is normally opened by first
One end of contact portion relay coil, the other end of the 3rd normally opened contact and one end of relay coil connect；First is normally closed
One end of contact and one end of the 5th normally opened contact are all connected with a signal end, and the other end of the first normally-closed contact is normally closed by the 4th
One end of contact portion first contactor coil, the other end of the 5th normally opened contact pass through the contact of the second normally-closed contact connection second
One end of device coil, the 4th normally opened contact are attempted by the both ends of the first normally-closed contact, and it is normally opened that the second normally opened contact is attempted by the 5th
The both ends of contact, the main contacts of the first A.C. contactor connect one first motor, the main contacts connection one of the second A.C. contactor
Second motor；Relay coil, the other end of first contactor coil are all connected with exchanging with the other end of second contactor coil
The zero line side of electricity.
Compared with prior art, the beneficial effects of the utility model are：
The utility model circuit structure is simple, is realized by a relay and two A.C. contactors to two equipment
Automate loop control.
Brief description of the drawings
Fig. 1 is circuit structure diagram of the present utility model.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further：
As shown in figure 1, the utility model provides a kind of midsequent control circuit, its is simple in construction, only including relay, the
One A.C. contactor and the second A.C. contactor.Relay and two A.C. contactors are common devices on the market.Wherein, after
Electrical equipment includes relay coil J, the first normally opened contact J1, the second normally opened contact J3, the first normally-closed contact J2；First exchange
Contactor includes first contactor coil 1C, the 3rd normally opened contact 1C1, the 4th normally opened contact 1C2 and the second normally-closed contact 1C3,
It is normally closed that second A.C. contactor includes second contactor coil 2C, the 5th normally opened contact 2C3, the 3rd normally-closed contact 2C1 and the 4th
Contact 2C2.
Specifically, the 3rd normally opened contact 1C1 one end connects the live wire of alternating current with the 3rd normally-closed contact 2C1 one end
L is held, for the 3rd normally-closed contact 2C1 other end by the first normally opened contact J1 connection relay coils J one end, the 3rd is normally opened tactile
The point 1C1 other end is connected with relay coil J one end；First normally-closed contact J2One end and the 5th normally opened contact 2C3
The other end that one end is all connected with signal end an A, the first normally-closed contact J2 passes through the 4th normally-closed contact 2C2 connection first contactor lines
1C one end is enclosed, the 5th normally opened contact 2C3 other end passes through the one of the second normally-closed contact 1C3 connection second contactor coils 2C
End, the 4th normally opened contact 1C2 are attempted by the first normally-closed contact J2 both ends, and the second normally opened contact J3 is attempted by the 5th normally opened contact
2C3 both ends, the main contacts of the first A.C. contactor connect one first motor, the main contacts connection 1 of the second A.C. contactor the
Two motors.Relay coil J, the first contactor coil 1C other end and second contactor coil the 2C other end are all connected with handing over
Flow the zero line side N of electricity.
Relay normally closed contact J2 is concatenated with contactor normally-closed contact 2C2, and when first time, signal occurred, L-A is connected, lC
Electric adhesive is obtained through normally-closed contact J2,2C2, and electric operation is connect by lC2 self-sustainings, the first motor, until L-A disconnects, cut-out lC electricity
Source, the first motor are stopped.During lC adhesives, lC1 closes, and J connects electric adhesive, and normally opened contact J1 concatenates with normally-closed contact 2C1, order
J self-sustainings, prepared for the operating of the second motor.
When second of CRANK PULSES L-A is connected, 2C obtains electric adhesive through J3, lC3 and closes self-insurance to the second motor from 2C3
Power transmission.2C1 disconnects J loop, makes J desorptions, and instruction lC occur for third time CRANK PULSES prepares.
Relay plays a part of middle relay, and two A.C. contactors are responsible for making motor connect electricity and power-off.Alternating current
Voltage can be set according to line feature.Second normally-closed contact and the 4th normally-closed contact are interlocking contacts, make two ac contactors
Device can not adhesive simultaneously, relay connects electricity due to the adhesive of the 3rd normally opened contact, and continues by L → 2C1 → J1 → J → N
Keep, it is not impacted by the power-off desorption of first contactor coil, connect electronic work for second contactor coil next time
Prepare.When command signal is interrupted, " L-A " disconnects, first contactor coil losing electricity, even the first motor is stopped.Instruction
When working signal occurs for the second time, " L-A " is switched on, i.e. L → A → J3 → 1C3 → 2C → N, makes second contactor coil connect electricity
Adhesive, and by the 5th normally opened contact closure self-insurance, make the second motor operation.Now because the 3rd normally-closed contact disconnects, relay
Coil losing electricity reduces, and is prepared for third time working signal.When the signal for instructing the second motor out of service occurs, i.e.,
" L-A " disconnects, second contactor coil losing electricity, the stalling of the second motor.When third time working signal occurs, system repeats above-mentioned step
Suddenly, the function of cyclic program control is realized.
As a kind of embodiment, two water pumps palpus alternate operations are accessed, the first A.C. contactor connects the first pump motor,
Second A.C. contactor connects the second pump motor, respectively two pump motor power transmissions and power-off, realizes two water pumps and follows
Ring controls.The output signal of automatic controller for water level is connected between zero line and signal end, it is necessary to during water pump operation, works as needs
When water pump stops, zero line is separated with signal end.Specific loop control principle is same as described above, and therefore not to repeat here.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (1)
1. midsequent control circuit, it is characterised in that including relay, the first A.C. contactor and the second A.C. contactor, institute
Stating relay includes relay coil, the first normally opened contact, the second normally opened contact, the first normally-closed contact；First exchange connects
Tentaculum includes first contactor coil, the 3rd normally opened contact, the 4th normally opened contact and the second normally-closed contact, the second A.C. contactor
Including second contactor coil, the 5th normally opened contact, the 3rd normally-closed contact and the 4th normally-closed contact；3rd normally opened contact
One end connects the zero line of alternating current with one end of the 3rd normally-closed contact, and the other end of the 3rd normally-closed contact is normally opened tactile by first
One end of point connection relay coil, the other end of the 3rd normally opened contact and one end of relay coil connect；First is normally closed tactile
One end of point and one end of the 5th normally opened contact are all connected with a signal end, and the other end of the first normally-closed contact is normally closed tactile by the 4th
One end of point connection first contactor coil, the other end of the 5th normally opened contact connect second contactor by the second normally-closed contact
One end of coil, the 4th normally opened contact are attempted by the both ends of the first normally-closed contact, and it is normally opened tactile that the second normally opened contact is attempted by the 5th
The both ends of point, the main contacts of the first A.C. contactor connect one first motor, the main contacts connection 1 of the second A.C. contactor the
Two motors；The other end of relay coil, the other end of first contactor coil and second contactor coil is all connected with alternating current
Zero line side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833070.4U CN206946227U (en) | 2017-07-10 | 2017-07-10 | Midsequent control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833070.4U CN206946227U (en) | 2017-07-10 | 2017-07-10 | Midsequent control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206946227U true CN206946227U (en) | 2018-01-30 |
Family
ID=61368611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720833070.4U Expired - Fee Related CN206946227U (en) | 2017-07-10 | 2017-07-10 | Midsequent control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206946227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716421A (en) * | 2018-07-11 | 2020-01-21 | 兰州大成铁路信号有限公司 | Execution unit switching circuit, electronic execution system comprising same and switching method |
-
2017
- 2017-07-10 CN CN201720833070.4U patent/CN206946227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716421A (en) * | 2018-07-11 | 2020-01-21 | 兰州大成铁路信号有限公司 | Execution unit switching circuit, electronic execution system comprising same and switching method |
| CN110716421B (en) * | 2018-07-11 | 2023-11-24 | 兰州大成铁路信号股份有限公司 | Execution unit switching circuit, electronic execution system comprising same and switching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |