CN104378041A - Continuous operation and inching control circuit - Google Patents
Continuous operation and inching control circuit Download PDFInfo
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- CN104378041A CN104378041A CN201410688079.1A CN201410688079A CN104378041A CN 104378041 A CN104378041 A CN 104378041A CN 201410688079 A CN201410688079 A CN 201410688079A CN 104378041 A CN104378041 A CN 104378041A
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- contactor
- time relay
- open contact
- normally open
- coil
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Abstract
The invention discloses a continuous operation and inching control circuit. One end of a 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 a coil of a time relay. A first normally open contact of an alternating-current contactor is connected with a normally closed contact of the time relay and a coil of an intermediate relay in series to form a branch circuit which is connected to the two ends of the coil of the time relay in parallel, one end of a non-delay instant-on normally open contact of the time relay is connected to the junction of the stopping button and a starting button, and the other end of the non-delay instant-on normally open contact of the time relay is connected with the negative electrode of the power source through a coil of the alternating-current contactor. A normally closed contact of the intermediate relay is connected with a second normally open contact of the alternating-current contactor in series to form a branch circuit which is connected to the two ends of the non-delay instant-on normally open contact of the time relay in parallel. Through the time relay, the intermediate relay and the alternating-current contactor, a motor operates continuously in an inching mode.
Description
Technical field
The present invention relates to a kind of operation continuously and point operation control circuit.
Background technology
Operationally, some motors can adopt a control mode for fortune to motor, and some motors can adopt long dynamic control mode.So-called point operation control: press the button rear motor with hand and obtain electric operation, after hand unclamps, motor dead electricity, out of service.Point operation control is used for the occasion such as the fast moving such as lathe cutter saddle, crossbeam, column and lathe tool setting.Long dynamic to control: press the button rear motor with hand and obtain electric operation, after hand unclamps, often open auxiliary contact self-locking because contactor utilizes, motor in the same old way electric operation, after only pressing stop button, just meeting dead electricity is out of service for motor.But, in existing control circuit, although combination, circuit structure and the equal more complicated of operating process that crawl and long dynamic control mode carry out by existing circuit.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of operation continuously and point operation control circuit.The present invention, by the time relay, auxiliary relay and A.C. contactor, makes the object that motor reaches crawl, runs continuously.
Technical scheme of the present invention is as follows:
Continuous operation and point operation control circuit, comprise stop button, starting button, the time relay, auxiliary relay and A.C. contactor, one end of stop button is connected with positive source, the other end of stop button is connected with power cathode by the coil of the time relay, first normally open contact of A.C. contactor and the branch road of the normally closed interlock of the time relay and the coils connected in series of auxiliary relay, be parallel to the two ends of the coil of the time relay, one end moving normally open contact not time delay wink of the time relay is connected to the node place of stop button and starting button, the other end moving normally open contact not time delay wink of the time relay connects power cathode by the coil of A.C. contactor, the branch road that the normally closed interlock of described auxiliary relay and the second normally open contact of A.C. contactor are in series, the not time delay wink being parallel to the time relay moves the two ends of normally open contact.
Also comprise the first indicator light, the second indicator light, the branch road that the normally closed interlock of A.C. contactor and the first indicator light are in series is connected between positive source and negative pole, and the branch road that the 3rd normally open contact of A.C. contactor and the second indicator light are in series is connected between positive source and negative pole.
Have employed such scheme, the course of work that the present invention makes motor crawl run is: press starting button, the coil of the time relay obtains electric, the not time delay wink moving contact of the time relay closes, the coil of A.C. contactor obtains electric, and the first normally open contact of A.C. contactor closes, and the coil of auxiliary relay obtains electric, the normally closed interlock of auxiliary relay disconnects, and cuts off the self-locking circuit of A.C. contactor.The normally open contact be connected in main circuit of A.C. contactor closes, and motor obtains electric operation.Starting button is unclamped in the delay time of the time relay, the coil losing electricity of the time relay, the not time delay wink moving contact of the time relay disconnects, the coil losing electricity of A.C. contactor, the normally open contact be connected in main circuit of A.C. contactor disconnects, and motor dead electricity is out of service.The course of work that the present invention makes motor run continuously is: press starting button, the coil of the time relay obtains electric, the not time delay wink moving contact of the time relay closes, the coil of A.C. contactor obtains electric, first normally open contact of A.C. contactor closes, the coil of auxiliary relay obtains electric, and the normally closed interlock of auxiliary relay disconnects, and cuts off the self-locking circuit of A.C. contactor.The normally open contact be connected in main circuit of A.C. contactor closes, and motor obtains electric operation.When the delay time of overtime relay unclamps starting button, at this moment, the normally closed interlock of the time relay disconnects, the coil losing electricity of auxiliary relay, the normally closed interlock of auxiliary relay closes, and the self-locking circuit of A.C. contactor recovers, after unclamping starting button, electric current flows through from the loop of the normally closed interlock of auxiliary relay, the second normally open contact of A.C. contactor, the coil of A.C. contactor, and motor is still in obtain the state of electric operation.
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, continuous operation and point operation control circuit, comprise stop button SB1, starting button SB2, the time relay, auxiliary relay and A.C. contactor, one end of stop button SB1 is connected with positive source, the other end of stop button SB1 is connected with power cathode by the coil KT of the time relay, the branch road that first normally open contact KM1 of A.C. contactor and the normally closed interlock KT1 of the time relay and the coil KA of auxiliary relay is in series, be parallel to the two ends of the coil KT of the time relay, one end moving normally open contact KT2 not time delay wink of the time relay is connected to the node place of stop button SB1 and starting button SB2, the other end moving normally open contact KT2 not time delay wink of the time relay connects power cathode by the coil KM of A.C. contactor, the branch road that the normally closed interlock KA1 of described auxiliary relay and the second normally open contact KM2 of A.C. contactor is in series, the not time delay wink being parallel to the time relay moves the two ends of normally open contact KT2.Also comprise the first indicator light HL1, the second indicator light HL2, the branch road that the normally closed interlock KM3 of A.C. contactor and the first indicator light HL1 is in series is connected between positive source and negative pole, and the branch road that the 3rd normally open contact KM4 of A.C. contactor and the second indicator light HL2 is in series is connected between positive source and negative pole.
The course of work that the present invention makes motor crawl run is: press starting button SB2, the coil KT of the time relay obtains electric, the not time delay wink moving contact KT2 of the time relay closes, the coil KM of A.C. contactor obtains electric, first normally open contact KM1 of A.C. contactor closes, the coil KA of auxiliary relay obtains electric, and the normally closed interlock KA1 of auxiliary relay disconnects, and cuts off the self-locking circuit of A.C. contactor.The normally open contact be connected in main circuit of A.C. contactor closes, and motor M obtains electric operation.Starting button SB2 is unclamped in the delay time of the time relay, the coil KT dead electricity of the time relay, the not time delay wink moving contact KT2 of the time relay disconnects, the coil KM dead electricity of A.C. contactor, the normally open contact be connected in main circuit of A.C. contactor disconnects, and motor M dead electricity is out of service.
The course of work that the present invention makes motor run continuously is: press starting button SB2, the coil KT of the time relay obtains electric, the not time delay wink moving contact KT2 of the time relay closes, the coil KM of A.C. contactor obtains electric, first normally open contact KM1 of A.C. contactor closes, the coil KA of auxiliary relay obtains electric, and the normally closed interlock KA1 of auxiliary relay disconnects, and cuts off the self-locking circuit of A.C. contactor.The normally open contact be connected in main circuit of A.C. contactor closes, and motor M obtains electric operation.When the delay time of overtime relay unclamps starting button SB2, at this moment, the normally closed interlock KT1 of the time relay disconnects, the coil KA dead electricity of auxiliary relay, the normally closed interlock KA1 of auxiliary relay closes, and the self-locking circuit of A.C. contactor recovers, after unclamping starting button SB2, electric current flows through from the loop of normally closed interlock KA1, the second normally open contact KM2 of A.C. contactor of auxiliary relay, the coil KM of A.C. contactor, and motor M is still in obtain the state of electric operation.
Claims (2)
1. run continuously and point operation control circuit, it is characterized in that: comprise stop button (SB1), starting button (SB2), the time relay, auxiliary relay and A.C. contactor, one end of stop button (SB1) is connected with positive source, the other end of stop button (SB1) is connected with power cathode by the coil (KT) of the time relay, the branch road that the coil (KA) of first normally open contact (KM1) of A.C. contactor and the normally closed interlock (KT1) of the time relay and auxiliary relay is in series, be parallel to the two ends of the coil (KT) of the time relay, one end moving normally open contact (KT2) not time delay wink of the time relay is connected to the node place of stop button (SB1) and starting button (SB2), the other end moving normally open contact (KT2) not time delay wink of the time relay connects power cathode by the coil (KM) of A.C. contactor, the branch road that the normally closed interlock (KA1) of described auxiliary relay and second normally open contact (KM2) of A.C. contactor are in series, the not time delay wink being parallel to the time relay moves the two ends of normally open contact (KT2).
2. continuous operation according to claim 1 and point operation control circuit, it is characterized in that: also comprise the first indicator light (HL1), the second indicator light (HL2), the branch road that the normally closed interlock (KM3) of A.C. contactor and the first indicator light (HL1) are in series is connected between positive source and negative pole, and the branch road that the 3rd normally open contact (KM4) of A.C. contactor and the second indicator light (HL2) are in series is connected between positive source and negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688079.1A CN104378041A (en) | 2014-11-25 | 2014-11-25 | Continuous operation and inching control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688079.1A CN104378041A (en) | 2014-11-25 | 2014-11-25 | Continuous operation and inching control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104378041A true CN104378041A (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688079.1A Pending CN104378041A (en) | 2014-11-25 | 2014-11-25 | Continuous operation and inching control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104378041A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278388A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | A manual control device for a coal transporting sampling collection system |
| CN112844653A (en) * | 2020-12-31 | 2021-05-28 | 济南重工股份有限公司 | Transmission control device of ball mill |
-
2014
- 2014-11-25 CN CN201410688079.1A patent/CN104378041A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278388A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | A manual control device for a coal transporting sampling collection system |
| CN105278388B (en) * | 2015-11-20 | 2018-10-09 | 湖南省湘衡盐化有限责任公司 | A kind of manual overvide for defeated coal sample collection system |
| CN112844653A (en) * | 2020-12-31 | 2021-05-28 | 济南重工股份有限公司 | Transmission control device of ball mill |
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| Date | Code | Title | Description |
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| 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 |