CN204808016U - Converter intelligence control system based on PLC - Google Patents
Converter intelligence control system based on PLC Download PDFInfo
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- CN204808016U CN204808016U CN201520443333.1U CN201520443333U CN204808016U CN 204808016 U CN204808016 U CN 204808016U CN 201520443333 U CN201520443333 U CN 201520443333U CN 204808016 U CN204808016 U CN 204808016U
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Abstract
The utility model provides a converter intelligence control system based on PLC, it is main including the converter mainboard, and a programmable logic controller, 485 communication module, man -machine interface, the human -computer interface control module, converter short -circuit protection module, programmable logic controler is connected respectively to the converter mainboard, 485 communication module, man -machine interface, converter short -circuit protection module, man -machine interface connects the man -machine interface control module, 485 communication module connects mobile terminal, mobile terminal connects remote monitoring terminal, the utility model discloses simple structure, intelligent degree is high, and the man -machine interface of adoption has the safety protection function, has solved the potential safety hazard of system control in -process, and the converter short -circuit protection module of adoption has anti noise ability, when the converter takes place short -circuit fault, can turn -off the system protection converter fast.
Description
Technical field:
The utility model relates to Frequency Converter Control field, particularly relates to a kind of frequency converter intelligent control system based on PLC.
Background technology:
Frequency converter application is industrially more and more extensive, coordinates especially form automatic control system in air-conditioning, water supply, the hydraulic turbine etc. with Programmable Logic Controller, have energy-conservation, raise the efficiency, the advantage of intellectuality operation, day by day come into one's own.
The human-machine interface function that existing frequency converter control system adopts is single, hommization degree is low; adopt single-processor process data; the analysis and treament work of mass data can not be completed; do not introduce the function of security protection; potential safety hazard is there is in system control process; existing frequency converter short-circuit protection anti-noise jamming ability simultaneously, usually affects control effects because of various hum in field control process.
Utility model content:
In order to solve the problem, it is simple that the utility model provides a kind of structure, and intelligence degree is high; can potential safety hazard in resolution system control procedure; there is anti-noise jamming ability simultaneously, when frequency converter is short-circuited fault, the technical scheme of frequency converter can be protected by turning off system fast:
A kind of frequency converter intelligent control system based on PLC; mainly comprise frequency converter mainboard, programmable logic controller (PLC), 485 communication modules, man-machine interface, human-computer interface control module, frequency converter short circuit protection module; frequency converter mainboard connects programmable logic controller (PLC), 485 communication modules, man-machine interface, frequency converter short circuit protection module respectively; man-machine interface connects human-computer interface control module; 485 communication modules connect mobile terminal, and mobile terminal connects remote monitoring terminal.
As preferably, man-machine interface comprises signal gathering unit, infrared induction unit, picture signal collecting unit, humiture sensing unit and signal transmission unit, and signal gathering unit, infrared induction unit, picture signal collecting unit, humiture sensing unit be connection signal transmission unit respectively.
As preferably, human-computer interface control module comprises dsp processor, FPGA processor, arm processor, and dsp processor connects FPGA processor by data bus, and FPGA processor connects arm processor by data bus.
As preferably, frequency converter short circuit protection module mainly comprises the first comparer, second comparer, optocoupler, first comparer electrode input end connects frequency converter sampled voltage end, negative input connects reference voltage end, resistance A one end connects inverter output terminal, the other end connects frequency converter sampled voltage end, resistance B one end is connected with frequency converter sampled voltage end respectively with electric capacity A one end, electric capacity B one end connects the first comparer electrode input end, the other end and resistance D, electric capacity C one end is connected, resistance D other end contact resistance C one end, the resistance C other end connects DC power supply terminal, resistance B other end contact resistance E one end, the resistance E other end and the first comparator output terminal, the electric capacity C other end connects optocoupler input end, output terminal contact resistance F one end respectively of optocoupler, resistance C one end, second comparer negative input, electric capacity D is connected in parallel on optocoupler output terminal, electric capacity E one end connects reference voltage end respectively, second comparer electrode input end, resistance H is connected the output terminal of the second comparer with electric capacity F.
The beneficial effects of the utility model are:
(1) man-machine interface that the utility model adopts has function of safety protection, solves the potential safety hazard in system control process, adopts the human-computer interface control unit lifting serviceability of man-machine interface.
(2) the frequency converter short circuit protection module that the utility model adopts has anti-noise jamming ability, when frequency converter is short-circuited fault, can protect frequency converter by turning off system fast.
Accompanying drawing illustrates:
Fig. 1 is Integral connection structure figure of the present utility model;
Fig. 2 is man-machine interface of the present utility model and human-computer interface control unit connection layout;
Fig. 3 is frequency converter short circuit protection module circuit theory diagrams of the present utility model.
Embodiment:
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1-2, a kind of frequency converter intelligent control system based on PLC, mainly comprise frequency converter mainboard 1, programmable logic controller (PLC) 2, 485 communication modules 3, man-machine interface 4, human-computer interface control module 5, frequency converter short circuit protection module 6, frequency converter mainboard 1 connects programmable logic controller (PLC) 2 respectively, 485 communication modules 3, man-machine interface 4, frequency converter short circuit protection module 6, man-machine interface 4 connects human-computer interface control module 5, 485 communication modules 3 connect mobile terminal 7, mobile terminal 7 connects remote monitoring terminal 8, frequency converter is industrial topworks, for electric machine speed regulation, 485 communication modules 3 are communication intermediaries, for the communication between terminal, mobile terminal 7 is field adjustable instruments, by the application software of exploitation based on mobile terminal operating system, the read-write to converter parameter can be realized, the display of fault and the monitoring of running status, remote monitoring terminal is remote service apparatus, for assisting debugging and maintenance and the monitoring of field staff.
Man-machine interface 4 comprises signal gathering unit 41, infrared induction unit 42, picture signal collecting unit 43, humiture sensing unit 44 and signal transmission unit 45, signal gathering unit 41, infrared induction unit 42, picture signal collecting unit 43, humiture sensing unit 44 be connection signal transmission unit 45 respectively, human-computer interface control module 5 comprises dsp processor 51, FPGA processor 52, arm processor 53, dsp processor 51 connects FPGA processor 52, FPGA processor 52 by data bus and connects arm processor 53 by data bus.Signal gathering unit 41, gather at least one item in voice signal, haptic signal, induced signal and picture signal, infrared induction unit 42, for gathering the infrared induction signal of controlled device.Picture signal collecting unit 43, by the picture signal of camera collection controlled device, is transferred to human-computer interface control module 5 by this picture signal.Humiture sensing unit 44 is for gathering the temperature and humidity of controlled device, dsp processor 51 is connected with FPGA processor 52, process the video and picture signal that transmit, FPGA processor 52 is connected with arm processor 53, dsp processor 51, and the video process dsp processor 51 and image signal data carry out buffer memory.Such as, when the signal of controlled device is voice signal, arm processor 53 can be identified by the voice signal of software to input, judges whether controlled device is validated user, if validated user then can carry out follow-up operation, if not the process then performing disabled user.The man-machine interface that the utility model adopts has function of safety protection, solves the potential safety hazard in system control process, adopts the human-computer interface control unit lifting serviceability of man-machine interface.
As shown in Figure 3, frequency converter short circuit protection module 6 mainly comprises the first comparer 9, second comparer 10, optocoupler 11, first comparer 9 electrode input end connects frequency converter sampled voltage end, negative input connects reference voltage end, resistance A1a one end connects inverter output terminal, the other end connects frequency converter sampled voltage end, resistance B2a one end is connected with frequency converter sampled voltage end respectively with electric capacity A1b one end, electric capacity B2b one end connects the first comparer 9 electrode input end, the other end and resistance D4a, electric capacity C3b one end is connected, resistance D4a other end contact resistance C3a one end, the resistance C3a other end connects DC power supply terminal, resistance B2a other end contact resistance E5a one end, the resistance E5a other end and the first comparer 9 output terminal, the electric capacity C3b other end connects optocoupler 11 input end, output terminal contact resistance F6a one end respectively of optocoupler 11, resistance C3a one end, second comparer 10 negative input, electric capacity D4b is connected in parallel on optocoupler 11 output terminal, electric capacity E5b one end connects reference voltage end respectively, second comparer 10 electrode input end, resistance H8a is connected the output terminal of the second comparer 10 with electric capacity F6b.When frequency converter short trouble, the sampled voltage of the first comparer 9 electrode input end input is less than the voltage of the reference voltage of negative input input, first comparer 9 output low level signal, optocoupler 11 conducting, and output terminal output low level signal, the voltage of the reference voltage end of the second comparer 10 electrode input end input is greater than the voltage of the low level signal of negative input input, second comparer 10 exports high level state signal, corresponding frequency converter state is short trouble, thus controls the power-off of frequency converter output module.The frequency converter short circuit protection module that the utility model adopts has anti-noise jamming ability, when frequency converter is short-circuited fault, can protect frequency converter by turning off system fast.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. the frequency converter intelligent control system based on PLC, mainly comprise frequency converter mainboard (1), programmable logic controller (PLC) (2), 485 communication modules (3), man-machine interface (4), human-computer interface control module (5), frequency converter short circuit protection module (6), it is characterized in that: described frequency converter mainboard (1) connects described programmable logic controller (PLC) (2) respectively, described 485 communication modules (3), described man-machine interface (4), described frequency converter short circuit protection module (6), described man-machine interface (4) connects described human-computer interface control module (5), described 485 communication modules (3) connect mobile terminal (7), described mobile terminal (7) connects remote monitoring terminal (8).
2. a kind of frequency converter intelligent control system based on PLC according to claim 1, it is characterized in that: described man-machine interface (4) comprises signal gathering unit (41), infrared induction unit (42), picture signal collecting unit (43), humiture sensing unit (44) and signal transmission unit (45), described signal gathering unit (41), described infrared induction unit (42), described picture signal collecting unit (43), described humiture sensing unit (44) connect described signal transmission unit (45) respectively.
3. a kind of frequency converter intelligent control system based on PLC according to claim 1, it is characterized in that: described human-computer interface control module (5) comprises dsp processor (51), FPGA processor (52), arm processor (53), described dsp processor (51) connects described FPGA processor (52) by data bus, and described FPGA processor (52) connects described arm processor (53) by data bus.
4. a kind of frequency converter intelligent control system based on PLC according to claim 1, it is characterized in that: described frequency converter short circuit protection module (6) mainly comprises the first comparer (9), second comparer (10), optocoupler (11), described first comparer (9) electrode input end connects frequency converter sampled voltage end, negative input connects reference voltage end, resistance A (1a) one end connects inverter output terminal, the other end connects frequency converter sampled voltage end, resistance B (2a) one end is connected with frequency converter sampled voltage end respectively with electric capacity A (1b) one end, electric capacity B (2b) one end connects the first comparer (9) electrode input end, the other end and resistance D (4a), electric capacity C (3b) one end is connected, resistance D (4a) other end contact resistance C (3a) one end, resistance C (3a) other end connects DC power supply terminal, resistance B (2a) other end contact resistance E (5a) one end, resistance E (5a) other end and the first comparer (9) output terminal, electric capacity C (3b) other end connects optocoupler (11) input end, output terminal contact resistance F (6a) one end respectively of optocoupler (11), resistance C (3a) one end, second comparer (10) negative input, electric capacity D (4b) is connected in parallel on optocoupler (11) output terminal, electric capacity E (5b) one end connects reference voltage end respectively, second comparer (10) electrode input end, resistance H (8a) is connected the output terminal of the second comparer (10) with electric capacity F (6b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443333.1U CN204808016U (en) | 2015-06-21 | 2015-06-21 | Converter intelligence control system based on PLC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443333.1U CN204808016U (en) | 2015-06-21 | 2015-06-21 | Converter intelligence control system based on PLC |
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| CN204808016U true CN204808016U (en) | 2015-11-25 |
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| CN201520443333.1U Expired - Fee Related CN204808016U (en) | 2015-06-21 | 2015-06-21 | Converter intelligence control system based on PLC |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409545A (en) * | 2018-11-07 | 2019-03-01 | 深圳市新科瑞电气技术有限公司 | Plant maintenance method, equipment to be checked, maintenance terminal and service centre |
| CN112180829A (en) * | 2020-10-13 | 2021-01-05 | 深圳市海浦蒙特科技有限公司 | Remote debugging method and system for PLC (programmable logic controller) equipment |
-
2015
- 2015-06-21 CN CN201520443333.1U patent/CN204808016U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409545A (en) * | 2018-11-07 | 2019-03-01 | 深圳市新科瑞电气技术有限公司 | Plant maintenance method, equipment to be checked, maintenance terminal and service centre |
| CN112180829A (en) * | 2020-10-13 | 2021-01-05 | 深圳市海浦蒙特科技有限公司 | Remote debugging method and system for PLC (programmable logic controller) equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160621 |