CN204842897U - Hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system - Google Patents
Hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system Download PDFInfo
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- CN204842897U CN204842897U CN201520470496.9U CN201520470496U CN204842897U CN 204842897 U CN204842897 U CN 204842897U CN 201520470496 U CN201520470496 U CN 201520470496U CN 204842897 U CN204842897 U CN 204842897U
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Abstract
The utility model discloses a hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system, include: the main power source, first hydraulic pressure station is opened and is stopped control button, PLC control module, an auxiliary relay, contactor and hydraulic pressure station, main power source and first hydraulic pressure station are opened and are stopped the control button electricity and be connected, first hydraulic pressure station is opened and is stopped control button and PLC control module electricity and be connected, PLC control module is connected with auxiliary relay electricity, an auxiliary relay is connected with the contactor electricity, the contactor is connected with the input electricity at hydraulic pressure station, still include auxiliary electrical power source, change over switch, second hydraulic pressure station is opened and is stopped control button and the 2nd auxiliary relay, auxiliary electrical power source is connected with the change over switch electricity, change over switch and second hydraulic pressure station are opened and are stopped the control button electricity and be connected, second hydraulic pressure station is opened and is stopped control button and the 2nd auxiliary relay electricity and be connected, the 2nd auxiliary relay is connected with the contactor electricity, an auxiliary relay is connected with the alarm electricity. The utility model has the advantages of production safety nature is high.
Description
Technical field
The utility model relates to conticaster Hydraulic Station, is specifically related to the Hydraulic Station on off control warning system under PLC malfunction.
Background technology
In steel-making industry, high-temperature molten steel is continuously cast into the production process with certain section configuration and certain size specification strand and is called continuous casting steel machine, the equipment needed for this process of completing is continuous casting complete set of equipments (also referred to as " conticaster "), wherein water steel equipment, conticaster body equipment, cutting zone equipment, dummy bar device, withdrawal straightening machine, tilting gear, step cooling bed device etc. is the cast steel nucleus equipment of conticaster, these cast steel nucleus equipments are all controlled by Hydraulic Station, the operation of Hydraulic Station is then controlled by Hydraulic Station start-stop control system.The structure of the Hydraulic Station start-stop control system used at present is: comprise main power source, Hydraulic Station on off control button, PLC control module, auxiliary reclay, contactor and Hydraulic Station, described main power source is electrically connected with the input of Hydraulic Station on off control button, the output of Hydraulic Station on off control button is electrically connected with the input of PLC control module, the output of PLC control module is electrically connected with the input of auxiliary reclay, the output of auxiliary reclay is electrically connected with the input of contactor, and the output of contactor is electrically connected with the input of Hydraulic Station.The shortcoming of above-mentioned Hydraulic Station start-stop control system is: the Hydraulic Station start stop signal that Hydraulic Station on off control button sends can first send to PLC control module, again by the station start and stop of PLC control module hydraulic control, when PLC control module breaks down, Hydraulic Station cannot will start because not receiving start stop signal and without any fault pre-alarming, but for the system that this Non-intermittent of conticaster is produced, in continuous flow procedure, each equipment must ensure uninterrupted stable operation, even the fault in a few second, also the stifled stream of conticaster can be caused to crash, thus cause serious production accident, enterprise's production security is low.
Utility model content
The purpose of this utility model is to provide a kind of when PLC control module breaks down, can Hydraulic Station on off control warning system under the PLC malfunction of effective hydraulic control station stopping.
For achieving the above object, the utility model have employed following technical scheme: the Hydraulic Station on off control warning system under described PLC malfunction, comprise: main power source, first Hydraulic Station on off control button, PLC control module, first auxiliary reclay, contactor and Hydraulic Station, described main power source is electrically connected with the input of the first Hydraulic Station on off control button, the output of the first Hydraulic Station on off control button is electrically connected with the input of PLC control module, the output of PLC control module is electrically connected with the input of the first auxiliary reclay, the output of the first auxiliary reclay is electrically connected with the input of contactor, the output of contactor is electrically connected with the input of Hydraulic Station, also comprise accessory power supply, change-over switch, second Hydraulic Station on off control button and the second auxiliary reclay, described accessory power supply is electrically connected with the input of change-over switch, the output of change-over switch is electrically connected with the input of the second Hydraulic Station on off control button, the output of the second Hydraulic Station on off control button is electrically connected with the input of the second auxiliary reclay, the output of the second auxiliary reclay is electrically connected with the input of contactor, described first auxiliary reclay is also electrically connected with alarm.
Further, the Hydraulic Station on off control warning system under aforesaid PLC malfunction, wherein: described accessory power supply is 24V power supply.
Further, the Hydraulic Station on off control warning system under aforesaid PLC malfunction, wherein: change-over switch comprises normal shelves and accident shelves, when the non-fault of PLC control module, change-over switch is placed in normal shelves, and when PLC control module fault, change-over switch is placed in accident shelves.
By the enforcement of technique scheme, the beneficial effects of the utility model are: when PLC control module breaks down, alarm meeting and alarm, make workman's energy Timeliness coverage and repair PLC control module, and by the auxiliary switching on/off circuit that accessory power supply, change-over switch, the second Hydraulic Station on off control button, the second auxiliary reclay and contactor are formed, on off control is carried out to Hydraulic Station, effectively prevent and cause conticaster to block up the generation of stream deadlock phenomenon because of PLC control module fault, substantially increase the production security of enterprise.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the Hydraulic Station on off control warning system under PLC malfunction described in the utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Hydraulic Station on off control warning system under described PLC malfunction, comprise: main power source 1, first Hydraulic Station on off control button 2, PLC control module 3, first auxiliary reclay 4, contactor 5 and Hydraulic Station 6, described main power source 1 is electrically connected with the input of the first Hydraulic Station on off control button 2, the output of the first Hydraulic Station on off control button 2 is electrically connected with the input of PLC control module 3, the output of PLC control module 3 is electrically connected with the input of the first auxiliary reclay 4, the output of the first auxiliary reclay 4 is electrically connected with the input of contactor 5, the output of contactor 5 is electrically connected with the input of Hydraulic Station 6, also comprise accessory power supply 7, change-over switch 8, second Hydraulic Station on off control button 9 and the second auxiliary reclay 10, described accessory power supply 7 is electrically connected with the input of change-over switch 8, the output of change-over switch 8 is electrically connected with the input of the second Hydraulic Station on off control button 9, the output of the second Hydraulic Station on off control button 9 is electrically connected with the input of the second auxiliary reclay 10, the output of the second auxiliary reclay 10 is electrically connected with the input of contactor 5, described first auxiliary reclay 4 is also electrically connected with alarm 11, in the present embodiment, described accessory power supply 7 is 24V power supply, like this while guarantee production security, can reduce again enterprise's production and application cost, in the present embodiment, change-over switch comprises normal shelves and accident shelves, and when the non-fault of PLC control module, change-over switch is placed in normal shelves, and when PLC control module fault, change-over switch is placed in accident shelves, and this change-over switch arrangement is simple, easy to operate,
Operation principle of the present utility model is as follows:
When the non-fault of PLC control module, change-over switch is placed in normal shelves, when needs start Hydraulic Station, first Hydraulic Station on off control button 2 sends Hydraulic Station enabling signal to PLC control module 3, the Hydraulic Station enabling signal received is sent to the first auxiliary reclay 4 by PLC control module 3, Hydraulic Station enabling signal is sent to contactor 5 by the first auxiliary reclay 4 again, and the Hydraulic Station enabling signal received is sent to Hydraulic Station 6 by contactor 5 again, thus the startup at hydraulic control station 6; When needs stop Hydraulic Station, first Hydraulic Station on off control button 2 sends Hydraulic Station stop signal to PLC control module 3, the Hydraulic Station stop signal received is sent to the first auxiliary reclay 4 by PLC control module 3, Hydraulic Station stop signal is sent to contactor 5 by the first auxiliary reclay 4 again, the Hydraulic Station stop signal received is sent to Hydraulic Station 6 by contactor 5 again, thus the stopping at hydraulic control station 6;
When PLC control module breaks down, PLC control module can not send Hydraulic Station control signal to the first auxiliary reclay 4, and after the first auxiliary reclay 4 does not receive Hydraulic Station control signal, warning reminding understood by alarm 11; Now, change-over switch 8 is placed in accident shelves, when needs restart Hydraulic Station, second Hydraulic Station start button 9 sends Hydraulic Station enabling signal to the second auxiliary reclay 10, the Hydraulic Station enabling signal received is sent to contactor 5 by the second auxiliary reclay 10, the Hydraulic Station enabling signal received is sent to Hydraulic Station by contactor 5 again, thus the startup at hydraulic control station 6 again; When needs stop Hydraulic Station again, second Hydraulic Station start button 9 sends Hydraulic Station stop signal to the second auxiliary reclay 10, the Hydraulic Station stop signal received is sent to contactor 5 by the second auxiliary reclay 10, the Hydraulic Station stop signal received is sent to Hydraulic Station 6 by contactor 5 again, thus the stopping at hydraulic control station 6 again.The utility model has the advantages that: when PLC control module breaks down, alarm meeting and alarm, make workman's energy Timeliness coverage and repair PLC control module, and by the auxiliary switching on/off circuit that accessory power supply, change-over switch, the second Hydraulic Station on off control button, the second auxiliary reclay and contactor are formed, on off control is carried out to Hydraulic Station, effectively prevent and cause conticaster to block up the generation of stream deadlock phenomenon because of PLC control module fault, substantially increase the production security of enterprise.
Claims (3)
- Hydraulic Station on off control warning system under 1.PLC malfunction, comprise: main power source, first Hydraulic Station on off control button, PLC control module, first auxiliary reclay, contactor and Hydraulic Station, described main power source is electrically connected with the input of the first Hydraulic Station on off control button, the output of the first Hydraulic Station on off control button is electrically connected with the input of PLC control module, the output of PLC control module is electrically connected with the input of the first auxiliary reclay, the output of the first auxiliary reclay is electrically connected with the input of contactor, the output of contactor is electrically connected with the input of Hydraulic Station, it is characterized in that: also comprise accessory power supply, change-over switch, second Hydraulic Station on off control button and the second auxiliary reclay, described accessory power supply is electrically connected with the input of change-over switch, the output of change-over switch is electrically connected with the input of the second Hydraulic Station on off control button, the output of the second Hydraulic Station on off control button is electrically connected with the input of the second auxiliary reclay, the output of the second auxiliary reclay is electrically connected with the input of contactor, described first auxiliary reclay is also electrically connected with alarm.
- 2. the Hydraulic Station on off control warning system under PLC malfunction according to claim 1, is characterized in that: described accessory power supply is 24V power supply.
- 3. the Hydraulic Station on off control warning system under PLC malfunction according to claim 1, it is characterized in that: change-over switch comprises normal shelves and accident shelves, when the non-fault of PLC control module, change-over switch is placed in normal shelves, when PLC control module fault, change-over switch is placed in accident shelves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470496.9U CN204842897U (en) | 2015-07-03 | 2015-07-03 | Hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470496.9U CN204842897U (en) | 2015-07-03 | 2015-07-03 | Hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system |
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| Publication Number | Publication Date |
|---|---|
| CN204842897U true CN204842897U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520470496.9U Active CN204842897U (en) | 2015-07-03 | 2015-07-03 | Hydraulic pressure station under PLC malfunction is opened and is stopped controlling alarm system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985151A (en) * | 2015-07-03 | 2015-10-21 | 江苏永钢集团有限公司 | Hydraulic station starting and stopping control alarm system under PLC failure condition |
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2015
- 2015-07-03 CN CN201520470496.9U patent/CN204842897U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985151A (en) * | 2015-07-03 | 2015-10-21 | 江苏永钢集团有限公司 | Hydraulic station starting and stopping control alarm system under PLC failure condition |
| CN104985151B (en) * | 2015-07-03 | 2017-01-25 | 江苏永钢集团有限公司 | Hydraulic station starting and stopping control alarm system under PLC failure condition |
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