CN203191773U - Start-stop control device for relay contact-control electrical device - Google Patents
Start-stop control device for relay contact-control electrical device Download PDFInfo
- Publication number
- CN203191773U CN203191773U CN 201320234828 CN201320234828U CN203191773U CN 203191773 U CN203191773 U CN 203191773U CN 201320234828 CN201320234828 CN 201320234828 CN 201320234828 U CN201320234828 U CN 201320234828U CN 203191773 U CN203191773 U CN 203191773U
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- electrical equipment
- auxiliary reclay
- contactor
- control device
- stop
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Abstract
The utility model provides a start-stop control device for a relay contact-control electrical device. The start-stop control device includes a PLC, a contactor, an emergency stop button for emergency stop of the electrical device, a start intermediate relay for receiving the start signals of the electrical device and a stop intermediate relay for receiving the stop signals of the electrical device; the start intermediate relay is connected with the coil of the contactor; the auxiliary normally-open contact of the contactor is connected with the start intermediate relay; and the PLC controller is connected with a PLC failure alarm. The start-stop control device for the relay contact-control electrical device employs a PLC double-output control mode and cooperates with the PLC failure alarm and the auxiliary contact of the contactor so that the normal operation and stop of the relay contact-control electrical device is assured even when the PLC controller breaks down and the problem that the intermediate relay is switched off and then the electrical device is forced to shut because of the PLC failure is solved.
Description
Technical field
The utility model relates to electrical equipment control device field, specifically is a kind of contact relay control electrical equipment start and stop control device.
Background technology
Present contact relay control electrical equipment start and stop control device adopts the single output of PLC set control mode, the start and stop of i.e. contact relay control electrical equipment only realize by auxiliary reclay of PLC controller control, and device start during this auxiliary reclay adhesive, equipment is out of service when disconnecting.This single output set control mode too relies on the PLC controller; especially control electrical equipment for the contact relay of separate operaton; in case PLC controller failure; the equipment that is moving will disconnect by forced-stopping machine because of auxiliary reclay; cause quantity-produced to interrupt, this is the deficiencies in the prior art part.
Summary of the invention
Technical problem to be solved in the utility model; it is exactly the deficiency that exists at prior art; and provide a kind of contact relay to control the technical scheme of electrical equipment start and stop control device; the start and stop control device that this scheme provides; in the time of can solving the PLC controller failure effectively, the contact relay of separate operaton control electrical equipment disconnects by the problem of forced-stopping machine because of auxiliary reclay.
The technical solution adopted in the utility model is:
A kind of contact relay control electrical equipment start and stop control device comprises PLC controller, contactor and be used for the scram button that electrical equipment promptly stops, and described contactor connects electrical equipment; This device also comprises for the startup auxiliary reclay that receives the electrical equipment enabling signal and is used for receiving the auxiliary reclay that stops of electrical equipment stop signal, and the auxiliary normally opened contact that described startup auxiliary reclay connects the coil of described contactor, described contactor links to each other with described startup auxiliary reclay; Described PLC controller connects the PLC fault alarm.
As the further restriction to this programme, described PLC controller connects described startup auxiliary reclay and the described auxiliary reclay that stops, and describedly stops the coil that auxiliary reclay connects described contactor.
As the further restriction to this programme, described PLC controller connects the described auxiliary reclay that stops, and the described auxiliary reclay that stops to connect described startup auxiliary reclay.
As the further restriction to this programme, described scram button connects the described auxiliary reclay that stops.
As the further restriction to this programme, described scram button connects described contactor.
Wherein, described PLC controller adopts the S7-300 programmable controller.
Wherein, described startup auxiliary reclay adopts the OMRON current relay.
Wherein, the described auxiliary reclay that stops to adopt the OMRON current relay.
Wherein, described contactor adopts A.C. contactor.
Compared with prior art, advantage of the present utility model is:
(1) the utility model adopts PLC dual output control model, separately control the start and stop of contact relay control electrical equipment, and control the startup of electrical equipment, control stopping of electrical equipment by stopping auxiliary reclay control contact relay by starting auxiliary reclay control contact relay, control mode is more flexible;
(2) the utility model links to each other the auxiliary contact of often opening of described contactor with described startup auxiliary reclay, and in conjunction with the use of scram button, guaranteed that electrical equipment also can normally move and stop when the PLC controller failure, overcome the drawback of single output set control mode, efficiently solve contact relay control electrical equipment and disconnect by the problem of forced-stopping machine because the PLC fault causes auxiliary reclay, thereby guarantee that production and supply can successfully carry out;
(3) PLC controller of the present utility model is connected with the PLC fault alarm, can carry out the urgent newspaper barrier of PLC controller failure, to guarantee that the message of PLC controller failure is in time informed the staff, be convenient to the staff according to the actual demand of technology, promptly stop electrical equipment or allow it continue operation.
This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings
In order to be illustrated more clearly in embodiment of the present utility model, to do one to the accompanying drawing of required use in the embodiment below introduces simply, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of a kind of embodiment of contact relay control electrical equipment start and stop control device described in the utility model.
Fig. 2 is the structured flowchart of the another kind of embodiment of contact relay control electrical equipment start and stop control device described in the utility model.
Fig. 3 is the structured flowchart of existing contact relay control electrical equipment start and stop control device.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth, but the utility model is not limited to following embodiment; And the electrical equipment described in the described embodiment is the contact relay control electrical equipment of separate operaton.
Fig. 3 is the structured flowchart synoptic diagram of existing contact relay control electrical equipment start and stop control device, it uses the single output of PLC set control mode, and as known in the figure, the PLC controller only links to each other with contactor by an auxiliary reclay, contactor control electrical equipment.The PLC controller by auxiliary reclay control electrical equipment startup and stop, in case auxiliary reclay interrupts because of the PLC controller failure, electrical equipment then can't operate as normal, thereby influences normal production and supply.
Fig. 1 and Fig. 2 are two kinds of embodiments of contact relay control electrical equipment start and stop control device described in the utility model, and hence one can see that, contact relay control electrical equipment start and stop control device described in the utility model comprises PLC controller, contactor and is used for the scram button that electrical equipment promptly stops, and described contactor connects electrical equipment; This device also comprises for the startup auxiliary reclay that receives the electrical equipment enabling signal and is used for receiving the auxiliary reclay that stops of electrical equipment stop signal, and the auxiliary normally opened contact that described startup auxiliary reclay connects the coil of described contactor, described contactor links to each other with described startup auxiliary reclay; Described PLC controller connects the PLC fault alarm.
As preferably, as shown in Figure 1, described PLC controller connects described startup auxiliary reclay and stops auxiliary reclay, and describedly stops the coil that auxiliary reclay connects described contactor.
As preferably, as shown in Figure 1, described scram button connects described contactor.
As preferably, as shown in Figure 2, described PLC controller connects the described auxiliary reclay that stops, and the described auxiliary reclay that stops to connect described startup auxiliary reclay.
As preferably, as shown in Figure 2, described scram button connects the described auxiliary reclay that stops.
When the utility model used, the PLC controller sent the electrical equipment enabling signal to starting auxiliary reclay, starts auxiliary reclay adhesive, contactor adhesive, the auxiliary normally opened contact closure of contactor; Start auxiliary reclay operation a period of time, as 3 seconds, the PLC controller was controlled it and is disconnected, and the auxiliary normally opened contact of contactor is kept closed, and then contactor is kept closed, and electrical equipment normally moves.At this moment, even the PLC controller failure, electrical equipment still can keep normal operation, thereby guarantees normal production and supply.
When PLC controller operate as normal, can send electrical equipment signal out of service to stopping auxiliary reclay by the PLC controller, and then stop the operation of electrical equipment.
When PLC controller operation irregularity, the PLC fault alarm gives the alarm; After the staff heard alarm, the actual needs of combined process was selected promptly to stop electrical equipment or is allowed electrical equipment continue operation; Carry out the PLC controller failure simultaneously and handle, fault was solved in the short as far as possible time.Wherein, when the staff selects promptly to stop electrical equipment, can cut off the control circuit of whole device by scram button, stop the operation of electrical equipment, avoid the operation of electrical equipment that production is caused adverse effect.
Wherein, described PLC controller adopts the S7-300 programmable controller.
Wherein, described startup auxiliary reclay adopts the OMRON current relay.
Wherein, the described auxiliary reclay that stops to adopt the OMRON current relay.
Wherein, described contactor adopts A.C. contactor.
To sum up, the utility model adopts PLC dual output control model, separately control the start and stop of electrical equipment, and by starting auxiliary reclay and stopping the start and stop signal that auxiliary reclay receives contact relay control electrical equipment respectively, control mode is more flexible; The auxiliary contact of often opening with contactor link to each other with described startup auxiliary reclay simultaneously, so that when PLC controller control electric equipment operation, contactor is kept closed, this has overcome the drawback of single output set control mode, guarantee that electrical equipment still can keep operation when the PLC controller failure, thereby guarantee that production and supply can successfully carry out.
In addition, the utility model is connected the PLC controller with the PLC fault alarm, guarantee the message of PLC controller failure is in time informed the staff, so that the staff carries out promptly stopping of electrical equipment according to the actual demand of technology or allow it continue operation; Simultaneously, the use of scram button has guaranteed that electrical equipment when technology finishes or need stop immediately, can normally or promptly stop, so as production and supply can be smoothly, finish safely.
The above, only be the preferred embodiments of the utility model when electric weight is in liberal supply, be not that the utility model is done any pro forma restriction, though the utility model with preferred embodiments openly as above, yet, be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all belong to the scope of technical solutions of the utility model.
Claims (9)
1. a contact relay control electrical equipment start and stop control device comprises PLC controller, contactor and be used for the scram button that electrical equipment promptly stops, and described contactor connects electrical equipment; It is characterized in that: this device also comprises for the startup auxiliary reclay that receives the electrical equipment enabling signal and is used for receiving the auxiliary reclay that stops of electrical equipment stop signal, and the auxiliary normally opened contact that described startup auxiliary reclay connects the coil of described contactor, described contactor links to each other with described startup auxiliary reclay; Described PLC controller connects the PLC fault alarm.
2. contact relay according to claim 1 is controlled electrical equipment start and stop control device, it is characterized in that: described PLC controller connects described startup auxiliary reclay and the described auxiliary reclay that stops, and describedly stops the coil that auxiliary reclay connects described contactor.
3. contact relay according to claim 1 is controlled electrical equipment start and stop control device, it is characterized in that: described PLC controller connects the described auxiliary reclay that stops, and the described auxiliary reclay that stops to connect described startup auxiliary reclay.
4. contact relay control electrical equipment start and stop control device according to claim 1 is characterized in that: the described auxiliary reclay that stops of described scram button connection.
5. contact relay according to claim 1 is controlled electrical equipment start and stop control device, and it is characterized in that: described scram button connects described contactor.
6. according to claim 1 or 2 or 3 described contact relay control electrical equipment start and stop control device, it is characterized in that: described PLC controller adopts the S7-300 programmable controller.
7. according to claim 1 or 2 or 3 described contact relay control electrical equipment start and stop control device, it is characterized in that: described startup auxiliary reclay adopts the OMRON current relay.
8. according to claim 1 or 2 or 3 or 4 described contact relay control electrical equipment start and stop control device, it is characterized in that: the described auxiliary reclay that stops to adopt the OMRON current relay.
9. contact relay is controlled electrical equipment start and stop control device according to claim 1 or 5, it is characterized in that: described contactor adopts A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234828 CN203191773U (en) | 2013-05-03 | 2013-05-03 | Start-stop control device for relay contact-control electrical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234828 CN203191773U (en) | 2013-05-03 | 2013-05-03 | Start-stop control device for relay contact-control electrical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191773U true CN203191773U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320234828 Expired - Fee Related CN203191773U (en) | 2013-05-03 | 2013-05-03 | Start-stop control device for relay contact-control electrical device |
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| Country | Link |
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| CN (1) | CN203191773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217921A (en) * | 2013-05-03 | 2013-07-24 | 济钢集团有限公司 | Start-stop control device of relay-contact-type control electrical equipment |
-
2013
- 2013-05-03 CN CN 201320234828 patent/CN203191773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217921A (en) * | 2013-05-03 | 2013-07-24 | 济钢集团有限公司 | Start-stop control device of relay-contact-type control electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20170503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |