CN201753234U - Large-sized foundry crane redundancy PLC control device - Google Patents
Large-sized foundry crane redundancy PLC control device Download PDFInfo
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- CN201753234U CN201753234U CN 201020206408 CN201020206408U CN201753234U CN 201753234 U CN201753234 U CN 201753234U CN 201020206408 CN201020206408 CN 201020206408 CN 201020206408 U CN201020206408 U CN 201020206408U CN 201753234 U CN201753234 U CN 201753234U
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Abstract
A large-sized foundry crane redundancy PLC control device belongs to the technical field of electric control equipment, which is used for improving the utilization performance of a large-sized foundry crane to the furthest extent. The technical scheme includes that the control device comprises field buses, a redundancy controller, a touch screen, a three-in-one module, mechanism substations and a plurality of frequency conversion devices. The redundancy controller is connected with the mechanism substations and the frequency conversion devices via the two field buses, and the redundancy controller, the mechanism substations and the frequency conversion devices are connected with each other by the three-in-one module and in redundancy hot backup modes. Accordingly, continuous equipment running is not affected by problems of any single part, and reliability of the control device is greatly enhanced. The large-sized foundry crane redundancy PLC control device takes the requirements of economical property and reliability of a control system of a large-sized foundry crane into consideration in design, realizes clear and definite control in a mechanism division manner, can effectively reduce failure rate, simultaneously realizes automatic failure diagnosis of the system, and facilitates speedy problem handling.
Description
Technical field
The utility model relates to a kind of large-scale foundry crane redundant PLC control setup, belongs to the electrical control equipment technical field.
Background technology
Along with the production-scale expansion of China's smelter, the raising of degree of automation, increasing as the effect of ladle carne in the modern production process of liquid metal carrying visual plant, and smelter is also more and more higher to the requirement of ladle carne.It not only wants easy operating and maintenance, and safety, reliability want high, requires to have excellent durability, trouble free and its usage economy.Ladle carne is the highest product of technology content in the crane in bridge type series.Because the high speed development of science and technology, various new and high technologies have obtained using widely on ladle carne.The in-use performance of ladle carne depends on the design of electric automatization control to a great extent.Modern ladle carne generally all is designed to operational process and all controls via the PLC automation.
The electrical control gear of new generation of large-scale foundry crane has developed into the all-electronin Digitizing And Control Unit, and PLC has become the core of crane control system, will finish all automatic control function.It realizes the detection of various signals by fieldbus and to the control of each speed regulation device, and adopts distributed substation and fiber optic communications, and this mode communication information amount is big, and line is simple, and antijamming capability is strong, the reliability height.Domestic large-scale foundry crane major part has adopted PLC control at present, but only adopts Medium PLC, function singleness and irredundant function.
Because frequency control, remote-control data communication, self-diagnosis of trouble monitoring, suspender prevent that shaking technology such as fuzzy control, suspender three-dimensional laser location, radar anticollision extensively is applied, make communication and the information handling task of PLC more and more heavier, so the type selecting of PLC also tend to maximize, redundancyization.External as Spain DF company, Finland KONE and French DSD-SECOMETAL company design through Changshan TE company and use the not Large PLC of Dicon AS.The part that also has the ladle carne that Germany MAN and DEMAG company produce has in recent years adopted the redundant automation system of Siemens, but only limits to the redundancy of CPU, and fieldbus and substation are not used redundancy as yet.
Above-mentioned home and overseas PLC system is because the series connection of mono-bus, numerous substation module cause the increase of breakdown of equipment and maintenance difficulty.The PLC control system had both required economy, required reliably again, and the design-calculated difficulty is increasing.Therefore rational and effective is carried out the PLC Control System Design, is the key of decision ladle carne in-use performance.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of in-use performance of large-scale foundry crane, large-scale foundry crane redundant PLC control setup of economic and reliable of improving to greatest extent.
The technical scheme that solves the problems of the technologies described above is:
A kind of large-scale foundry crane redundant PLC control setup, it is made up of fieldbus, redundant manipulator, touch-screen, three-in-one module, each mechanism substation, a plurality of converter plant, fieldbus is two, redundant manipulator is connected with each mechanism substation and a plurality of converter plant by two fieldbuss, and redundant manipulator, each mechanism substation, each converter plant use three-in-one module to connect.
Above-mentioned large-scale foundry crane redundant PLC control setup, described redundant manipulator comprises two CPU element.
Above-mentioned large-scale foundry crane redundant PLC control setup adopts distributed control, and orlop is the remote controller and the converter plant of each mechanism substation, and they all are articulated on the bus as website.
Advantage of the present utility model is: two CPU designs of redundant manipulator can guarantee that spare CPU can put into operation immediately automatically after single cpu, single 24V power supply break down; Redundant fieldbus guarantee in two buses any one break down after, system can normally move; After redundant unit's substation design can guarantee that any one mechanism's substation control module breaks down, system can normally move; Each frequency conversion system uses single fieldbus series connection control, to improve PLC program loop speed, increases system reliability, reduces the system complex degree.This large-scale foundry crane redundant PLC control setup design has taken into account the requirement of large-scale foundry crane to control system economy and reliability, realized the sub-agencies control of clear and definite, can effectively reduce fault rate, realize the fault self-diagnosis of system simultaneously, help the fast processing problem.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark is as follows among the figure: power supply 1,2, CPU element 3,4, touch-screen 5, three-in-one module 6, each the substation 7-12 of mechanism, converter plant 13-22
The specific embodiment
Show among the figure that the utility model is made up of fieldbus, redundant manipulator, touch-screen 5, three-in-one module 6, each substation 7-12 of mechanism, a plurality of converter plant 13-22.
The superiors of the present utility model are comprehensive monitor system, it is made up of man-machine interface touch-screen and corresponding application software thereof, by obtaining information needed with the redundant manipulator communication, finish graphic display, fault demonstration, warning, the record of running state, realize the fault self-diagnosis of system.Interlayer is a redundant manipulator, and it is the control core of this device, mainly is made up of CPU element, switching value input/output module, high speed counting module, analog quantity load module, remote controller etc.This device adopts distributed control, and orlop is the remote controller of each substation 7-12 of mechanism and the converter plant 13-22 of each substation 7-12 of mechanism.They all are articulated on the bus as website.
Embodiment among the figure shows that fieldbus is two, and the CPU of redundant manipulator is 2, and each substation 7-12 of mechanism is 6, and converter plant 13-22 is 10.
Redundant manipulator of the present utility model adopts redundancy structure, using the purpose of the redundant manipulator of high reliability is in order to reduce production loss, the very fast production loss of being avoided of the high investment meeting of redundant system compensates, and can be transformed into alternative system in moment when system breaks down.Redundant fieldbus guarantee in two buses any one break down after, system can normally move.Two redundant CPU element 3,4 of redundant manipulator can guarantee that spare CPU can put into operation immediately automatically after single cpu, single 24V power supply break down.
6 each substation 7-12 of mechanism comprise driver's cab, main hook, main carriage, auxiliary hook, secondary dolly, cart.Display graphics interface and alerting signal on the driver's cab touch-screen realize fault self-diagnosis.Redundant manipulator connects by 2 fieldbuss with each substation 7-12 of mechanism; control command, each master of mechanism that the switching input module of each substation 7-12 of mechanism is accepted driver's cab make given signal and safety guard-safeguard pilot signal; the analog quantity load module is accepted position detection signal, and is sent to CPU element.After the redundant unit substation guaranteed that any one substation control module breaks down, system can normally move.
Redundant manipulator is controlled the converter plant 13-22 that hoists with operating unit by the fieldbus series system, simultaneously by and converter plant 13-22 between communication, redundant manipulator will obtain the running state and the failure message of frequency converter.Each converter plant 13-22 of mechanism uses single fieldbus series connection control, can improve PLC program loop speed, increases system reliability, reduces the system complex degree.
The design's characteristics are:
1, redundant manipulator, each mechanism substation, each converter plant use three-in-one module to connect, and have realized the combination of on site redundant bus and single fieldbus.
2, redundant manipulator, mechanism substation and fieldbus three parts are the Redundant backup mode, and any single component not impact equipment that goes wrong all continues operation, has greatly improved reliability of the present utility model.
This large-scale foundry crane redundant PLC control device design has taken into account the requirement of large-scale foundry crane to control system economy and reliability, realized the sub-agencies control of clear and definite, effectively reduce trouble has been realized fault self-diagnosis simultaneously, helps the fast processing problem.
Claims (3)
1. large-scale foundry crane redundant PLC control setup, it is characterized in that: it is made up of fieldbus, redundant manipulator, touch-screen [5], three-in-one module [6], each mechanism substation [7-12], a plurality of converter plant [13-22], fieldbus is two, redundant manipulator is connected with each mechanism substation [7-12] and a plurality of converter plant [13-22] by two fieldbuss, and redundant manipulator, each mechanism substation [7-12], each converter plant [13-22] use three-in-one module [6] to connect.
2. large-scale foundry crane redundant PLC control setup according to claim 1 is characterized in that: described redundant manipulator comprises two CPU element [3], [4].
3. large-scale foundry crane redundant PLC control setup according to claim 2, it is characterized in that: adopt distributed control, orlop is the remote controller and the converter plant [13-22] of each mechanism substation [7-12], and they all are articulated on the bus as website.
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CN 201020206408 CN201753234U (en) | 2010-05-28 | 2010-05-28 | Large-sized foundry crane redundancy PLC control device |
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CN 201020206408 CN201753234U (en) | 2010-05-28 | 2010-05-28 | Large-sized foundry crane redundancy PLC control device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102854871A (en) * | 2012-10-11 | 2013-01-02 | 三一重工股份有限公司 | Bus control system and engineering machinery |
CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
CN111483923A (en) * | 2019-01-25 | 2020-08-04 | 夏小虎 | Crane distributed control system based on communication bus |
-
2010
- 2010-05-28 CN CN 201020206408 patent/CN201753234U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102854871A (en) * | 2012-10-11 | 2013-01-02 | 三一重工股份有限公司 | Bus control system and engineering machinery |
CN111483923A (en) * | 2019-01-25 | 2020-08-04 | 夏小虎 | Crane distributed control system based on communication bus |
CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
CN109867206B (en) * | 2019-03-05 | 2024-06-11 | 邯郸钢铁集团有限责任公司 | Crown block translation mechanism redundancy control device and method |
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C14 | Grant of patent or utility model | ||
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20130528 |