CN104378015A - Control circuit for allowing two motors to be started separately or stopped at same time - Google Patents
Control circuit for allowing two motors to be started separately or stopped at same time Download PDFInfo
- Publication number
- CN104378015A CN104378015A CN201410683642.6A CN201410683642A CN104378015A CN 104378015 A CN104378015 A CN 104378015A CN 201410683642 A CN201410683642 A CN 201410683642A CN 104378015 A CN104378015 A CN 104378015A
- Authority
- CN
- China
- Prior art keywords
- contactor
- button
- starting button
- open contact
- normally open
- 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
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention discloses a control circuit allowing two motors to be started separately or stopped at the same time. The control circuit comprises a stopping button, a first starting button, a second starting button, a first alternating-current contactor and a second alternating-current contactor. One end of the stopping button is connected with the positive electrode of a power source, and the other end of the stopping button is connected with the negative electrode of the power source through the first starting button and a coil of the first alternating-current contactor in sequence. A first normally open contact of the first alternating-current contactor is connected to the two ends of the first starting button in parallel, one end of the second starting button is connected to the junction of the stopping button and the first starting button, and the other end of the second starting button is connected with the negative electrode of the power source through a coil of the second alternating-current contactor. A first normally open contact of the second alternating-current contactor is connected to the two ends of the second starting button in parallel. The control circuit has the advantage of being low in cost.
Description
Technical field
The present invention relates to the control circuit that a kind of two motors start respectively, stop simultaneously.
Background technology
Motor has been widely used in the various equipment of industrial product.In the production process of reality, for the manufacture process of identical product, often need multiple electric motors work and carry out, when stopping, need again these motors to stop simultaneously, but, in existing control circuit, by using PLC to control, but the control circuit relating to PLC needs higher cost.
Summary of the invention
For above-mentioned technical problem, the invention provides the control circuit that a kind of two motors start respectively, stop simultaneously, the present invention has the low feature of cost.
Technical scheme of the present invention is as follows:
Two motors start respectively, the control circuit simultaneously stopped, comprise stop button, first starting button, second starting button, first A.C. contactor, second A.C. contactor, one end of stop button is connected with positive source, the other end of stop button is successively by the first starting button, the coil of the first A.C. contactor is connected with power cathode, first normally open contact of the first A.C. contactor is parallel to the two ends of the first starting button, one end of second starting button is connected to the node place of stop button and the first starting button, the other end of the second starting button is connected with power cathode by the coil of the second A.C. contactor, first normally open contact of the second A.C. contactor is parallel to the two ends of the second starting button.
Have employed such scheme, during for starting the first motor, press the first starting button, the coil of the first A.C. contactor obtains electric, first normally open contact of the first A.C. contactor closes, make first to connect the self-locking of stream contactor, the main contact be connected in main circuit of the first A.C. contactor closes, and the first motor obtains electric operation.During for starting the second motor, press the second starting button, the coil of the second A.C. contactor obtains electric, first normally open contact of the second A.C. contactor closes, make second to connect the self-locking of stream contactor, the main contact be connected in main circuit of the second A.C. contactor closes, and the second motor obtains electric operation.
Also comprise the first run indicator, the second run indicator, the 3rd run indicator, one end of the normally closed interlock of described first A.C. contactor connects positive source, and the normally closed interlock of the first A.C. contactor is successively by normally closed interlock and the first run indicator connection power cathode of the second A.C. contactor; Second normally open contact of the first A.C. contactor is connected with the second run indicator the branch road formed, and is connected between power positive cathode; Second normally open contact of the second A.C. contactor is connected with the 3rd run indicator the branch road formed, and is connected between power positive cathode.When the coil of the first A.C. contactor obtains electric, the normally closed interlock of the first A.C. contactor disconnects, and the first run indicator is extinguished; Second normally open contact of the first A.C. contactor closes, and the second run indicator is lighted, and shows that the first motor is in running.When the coil of the second A.C. contactor obtains electric, the normally closed interlock of the second A.C. contactor disconnects, and the first run indicator is extinguished; Second normally open contact of the second A.C. contactor closes, and the 3rd run indicator is lighted, and shows that the second motor is in running.
Preferably, also comprise the first thermal relay and the second thermal relay, the first overload light, the second overload light, the first overload light is connected with the first normally open contact of the first thermal relay the branch road formed, and is connected between power positive cathode; Second overload light is connected with the second normally open contact of the first thermal relay the branch road formed, and is connected between power positive cathode.When motor overload, the thermal relay in main circuit produces action, the first normally open contact or the second normally open contact is closed, the first overload light or the second overload light lighting, thus reflects the situation of overload.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
See Fig. 1, two motors start respectively, the control circuit simultaneously stopped, comprise stop button SB1, first starting button SB2, second starting button SB3, first A.C. contactor, second A.C. contactor, one end of stop button SB1 is connected with positive source, the other end of stop button SB1 is successively by the first starting button SB2, the coil KM1 of the first A.C. contactor is connected with power cathode, first normally open contact KM11 of the first A.C. contactor is parallel to the two ends of the first starting button SB2, one end of second starting button SB3 is connected to the node place of stop button SB1 and the first starting button SB2, the other end of the second starting button SB3 is connected with power cathode by the coil KM2 of the second A.C. contactor, first normally open contact KM21 of the second A.C. contactor is parallel to the two ends of the second starting button SB3.Also comprise the first run indicator HL1, the second run indicator HL2, the 3rd run indicator HL3, one end of the normally closed interlock KM12 of described first A.C. contactor connects positive source, and the normally closed interlock KM12 of the first A.C. contactor is successively by normally closed interlock KM22 and the first run indicator HL1 connection power cathode of the second A.C. contactor; Second normally open contact KM13 of the first A.C. contactor connects with the second run indicator HL2 the branch road formed, and is connected between power positive cathode; Second normally open contact KM23 of the second A.C. contactor connects with the 3rd run indicator HL3 the branch road formed, and is connected between power positive cathode.Also comprise the first thermal relay and the second thermal relay, the first overload light HL4, the second overload light HL5, the first overload light HL4 connects with the first normally open contact FR1 of the first thermal relay the branch road formed, and is connected between power positive cathode; Second overload light HL5 connects with the second normally open contact FR2 of the first thermal relay the branch road formed, and is connected between power positive cathode.
During for starting the first motor M 1, press the first starting button SB2, the coil KM1 of the first A.C. contactor obtains electric, first normally open contact KM11 of the first A.C. contactor closes, first is made to connect the self-locking of stream contactor, the main contact be connected in main circuit of the first A.C. contactor closes, and the first motor obtains electric operation.When the coil KM1 of the first A.C. contactor obtains electric, the normally closed interlock KM12 of the first A.C. contactor disconnects, and the first run indicator HL1 extinguishes; Second normally open contact KM13 of the first A.C. contactor closes, and the second run indicator HL2 lights, and shows that the first motor is in running.
During for starting the second motor M 2, press the second starting button SB3, the coil KM2 of the second A.C. contactor obtains electric, first normally open contact KM21 of the second A.C. contactor closes, second is made to connect the self-locking of stream contactor, the main contact be connected in main circuit of the second A.C. contactor closes, and the second motor obtains electric operation.When the coil KM2 of the second A.C. contactor obtains electric, the normally closed interlock KM22 of the second A.C. contactor disconnects, and the first run indicator HL1 extinguishes; Second normally open contact KM23 of the second A.C. contactor closes, and the 3rd run indicator HL3 lights, and shows that the second motor is in running.
During stopping, pressing stop button SB1, the first A.C. contactor and the equal dead electricity of the second A.C. contactor, all contacts return to reset condition, like this, the first motor M 1 and the second motor M 2 out of service.
Claims (3)
1. two motors start respectively, the control circuit simultaneously stopped, it is characterized in that: comprise stop button (SB1), first starting button (SB2), second starting button (SB3), first A.C. contactor, second A.C. contactor, one end of stop button (SB1) is connected with positive source, the other end of stop button (SB1) is successively by the first starting button (SB2), the coil (KM1) of the first A.C. contactor is connected with power cathode, first normally open contact (KM11) of the first A.C. contactor is parallel to the two ends of the first starting button (SB2), one end of second starting button (SB3) is connected to the node place of stop button (SB1) and the first starting button (SB2), the other end of the second starting button (SB3) is connected with power cathode by the coil (KM2) of the second A.C. contactor, first normally open contact (KM21) of the second A.C. contactor is parallel to the two ends of the second starting button (SB3).
2. two motors according to claim 1 control circuit of starting respectively, stopping simultaneously, it is characterized in that: also comprise the first run indicator (HL1), the second run indicator (HL2), the 3rd run indicator (HL3), one end of the normally closed interlock (KM12) of described first A.C. contactor connects positive source, and the normally closed interlock (KM12) of the first A.C. contactor connects power cathode by the normally closed interlock (KM22) of the second A.C. contactor and the first run indicator (HL1) successively;
Second normally open contact (KM13) of the first A.C. contactor is connected with the second run indicator (HL2) branch road formed, and is connected between power positive cathode; Second normally open contact (KM23) of the second A.C. contactor is connected with the 3rd run indicator (HL3) branch road formed, and is connected between power positive cathode.
3. two motors according to claim 1 control circuit of starting respectively, stopping simultaneously, it is characterized in that: also comprise the first thermal relay and the second thermal relay, the first overload light (HL4), the second overload light (HL5), first overload light (HL4) is connected with first normally open contact (FR1) of the first thermal relay the branch road formed, and is connected between power positive cathode; Second overload light (HL5) is connected with second normally open contact (FR2) of the first thermal relay the branch road formed, and is connected between power positive cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683642.6A CN104378015A (en) | 2014-11-24 | 2014-11-24 | Control circuit for allowing two motors to be started separately or stopped at same time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683642.6A CN104378015A (en) | 2014-11-24 | 2014-11-24 | Control circuit for allowing two motors to be started separately or stopped at same time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104378015A true CN104378015A (en) | 2015-02-25 |
Family
ID=52556727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410683642.6A Pending CN104378015A (en) | 2014-11-24 | 2014-11-24 | Control circuit for allowing two motors to be started separately or stopped at same time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104378015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834532A (en) * | 2017-11-29 | 2018-03-23 | 株洲三新包装技术有限公司 | Corrugated paper plate printing machines power supply order start and stop Anti-misoperation circuit |
| CN109956413A (en) * | 2017-12-26 | 2019-07-02 | 河南省安装集团有限责任公司 | The positive and negative rotation centralized control and selected control control cabinet of more electric blocks |
-
2014
- 2014-11-24 CN CN201410683642.6A patent/CN104378015A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834532A (en) * | 2017-11-29 | 2018-03-23 | 株洲三新包装技术有限公司 | Corrugated paper plate printing machines power supply order start and stop Anti-misoperation circuit |
| CN107834532B (en) * | 2017-11-29 | 2024-02-06 | 株洲三新包装技术有限公司 | Power sequence start-stop misoperation prevention circuit for corrugated board printer |
| CN109956413A (en) * | 2017-12-26 | 2019-07-02 | 河南省安装集团有限责任公司 | The positive and negative rotation centralized control and selected control control cabinet of more electric blocks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
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| WD01 | Invention patent application deemed withdrawn after publication |