CN202522637U - Inverter pulse recognition system - Google Patents
Inverter pulse recognition system Download PDFInfo
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- CN202522637U CN202522637U CN2012200262547U CN201220026254U CN202522637U CN 202522637 U CN202522637 U CN 202522637U CN 2012200262547 U CN2012200262547 U CN 2012200262547U CN 201220026254 U CN201220026254 U CN 201220026254U CN 202522637 U CN202522637 U CN 202522637U
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- frequency converter
- drive division
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Abstract
The utility model is applicable to the field of electronic technology and provides an inverter pulse recognition system. The system is provided with an IGBT unit for realizing a circuit and a drive part. The system comprises a central processing unit, a control unit, and an indicating unit. The central processing unit is used for testing the running state of the IGBT unit and the drive part and outputting state signals on the basis of the running state, and the central processing unit is connected with the IGBT unit and the drive part. The control unit is used for receiving the state signals outputted by the central processing unit and controlling whether the indicating unit is lighted, and the control unit is connected with the central processing unit. The indicating unit is connected with the control unit, and is used for indicating whether the IGBT unit and the drive part run normally. The system provided by the utility model has the advantages of simplicity, practicability and comparatively low production cost. With the system, fault pulse test can be conveniently carried out on the inverter.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of frequency converter pulse recognition system.
Background technology
To be the on-off action that utilizes power semiconductor device be transformed to the electric energy control device of another frequency with power frequency supply with frequency converter, can realize to AC induction motor soft start, frequency control, raising running accuracy, change power factor, overcurrent/overvoltage/functions such as overload protection.Therefore, frequency converter has a wide range of applications in electronics industry.And break down when needing repairing at frequency converter, whether the driving pulse that normally detects MCU is normal, judges corresponding fault.Pick-up unit commonly used at present is an oscillograph, and it can react the state of pulse accurately, but most of oscillograph volume and weight is all relatively large, and needs civil power ability operate as normal, and need be quite inconvenient when outdoor work, and oscillographic cost is higher.
Can know that to sum up existing frequency converter failure pulse detecting equipment obviously exists inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
To above-mentioned defective, the purpose of the utility model is to provide a kind of frequency converter pulse recognition system, and it is simple in structure, and it is convenient to detect pulse, can save cost.
To achieve these goals, the utility model provides a kind of frequency converter pulse recognition system, has the IGBT unit and the drive division that are used to realize circuit, and said system comprises:
Be used to detect said IGBT unit and drive division running status, and according to the CPU of said running status output status signal, said CPU is connected with said IGBT unit and drive division;
Be used to receive the status signal of said CPU output, the control module whether the control indicating member is lighted is connected in said CPU;
Be used to indicate whether normally indicating member of said IGBT unit and drive division operation, be connected in said control module.
According to the described frequency converter pulse recognition of the utility model system; Said IGBT unit and drive division have six electric arms and interface unit; Each corresponding driven element unit of said electric arm; Said system comprises six optocoupler subelements, and the driven element unit that said six electric arms are corresponding connects six optocoupler subelements through said interface unit correspondence, and the output of said six optocoupler subelements all connects said CPU.
According to the described frequency converter pulse recognition of the utility model system, said CPU is the 89C51 single-chip microcomputer.
According to the described frequency converter pulse recognition of the utility model system, said control module is the optocoupler control module.
According to the described frequency converter pulse recognition of the utility model system, said indicating member is a LED light.
According to the described frequency converter pulse recognition of the utility model system, said driven element unit is the a316j chip.
The utility model passes through the running status that a CPU detects IGBT unit and drive division, and according to the corresponding level signal of its running status control output, control module is controlled the indicating member indication fault after receiving this level signal.Concrete; When IGBT unit and drive division have fault; The level signal of central processing unit controls output is a low level, and this moment, indicating member provided indication, and the user can know that IGBT unit and drive division break down; Otherwise CPU output high level, indicating member keeps original state.The utility model is simple to operate, cost is lower, can detect the fault of IGBT unit and drive division easily.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 A is the structural representation of the control module of the utility model one embodiment;
Fig. 2 B is the structural representation of the optocoupler subelement of the utility model one embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Referring to Fig. 1, the utility model provides a kind of frequency converter pulse recognition system, and the pulse that is used to discern frequency converter is to detect corresponding fault, and is concrete, has an IGBT unit and drive division 200, and pulse recognition system 100 comprises:
Indicating member 30 is connected in control module 20, and whether the signal indication IGBT unit and the drive division 200 that are used to receive control module 20 move normally.Among the embodiment of the utility model, the indicating member 30 preferred LED lights that adopt.Concrete, if move the normally state then the LED light maintenance does not work, if IGBT unit and drive division 200 break down, then LED light is lighted and is given prompting.
Concrete, among the embodiment of the utility model, IGBT unit and drive division 200 have 6 electric arms and interface unit 207, the corresponding driven element unit of each electric arm, and driven element unit 201～206 as shown in the figure, the driven element unit all adopts the a316j chip.System 100 comprises six optocoupler subelements 101～106; Each optocoupler sub-unit structure is shown in Fig. 2 B; Six corresponding driven element unit 201～206 of electric arm connect described six optocoupler subelements 101～106 through interface unit 207 correspondences; And the input end that the output terminal of these six optocoupler subelements 101～106 all is connected in 10, six driven element unit 201～206 of CPU also connects CPU 10.
The concrete course of work of the utility model is following: open system power supply, CPU 10 self checks and initiation parameter, and then direct 201～206 reading of data from the driven element unit; Simultaneously also from six optocoupler subelement 101～106 reading of data; CPU 10 knows whether fault data is arranged after with two groups of data comparative analyses, if having, and output low level signal to control module 20 then; Indicating member 30 also provides indicating fault simultaneously, and promptly LED light is lighted.If there is not fault to take place, then CPU 10 is exported high level to control modules 20, and LED light keeps original state.
Need to prove that frequency converter does not start, CPU 10 does not have when input, LED light can be judged to be normally and not work.Need in use frequency converter is started earlier; And to normally start frequency converter; Because the data that read are the data result of frequency converter in working order, guarantee the normal operation of system whereby, and the detection IGBT unit that can be easy and the driving malfunction of drive division 200.
In sum, the utility model passes through the running status that a CPU detects IGBT unit and drive division, and according to the corresponding level signal of its running status control output, control module is controlled the indicating member indication fault after receiving this level signal.Concrete; When IGBT unit and drive division have fault; The level signal of central processing unit controls output is a low level, and this moment, indicating member provided indication, and the user can know that IGBT unit and drive division break down; Otherwise CPU output high level, indicating member keeps original state.The utility model is simple to operate, cost is lower, can detect the fault of IGBT unit and drive division easily.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (2)
1. a frequency converter pulse recognition system has the IGBT unit and the drive division that are used to realize circuit, it is characterized in that said system comprises:
Be used to detect said IGBT unit and drive division running status, and according to the CPU of said running status output status signal, said CPU is connected with said IGBT unit and drive division;
Be used to receive the status signal of said CPU output, the control module whether the control indicating member is lighted is connected in said CPU;
Be used to indicate whether normally indicating member of said IGBT unit and drive division operation, be connected in said control module.
2. frequency converter pulse recognition according to claim 1 system; It is characterized in that; Said IGBT unit and drive division have six electric arms and interface unit, each corresponding driven element unit of said electric arm, and said system comprises six optocoupler subelements; The driven element unit that said six electric arms are corresponding connects six optocoupler subelements through said interface unit correspondence, and the output of said six optocoupler subelements all connects said CPU.
3, frequency converter pulse recognition according to claim 1 system is characterized in that said CPU is the 89C51 single-chip microcomputer.
4, frequency converter pulse recognition according to claim 1 system is characterized in that said control module is the optocoupler control module.
5, frequency converter pulse recognition according to claim 1 system is characterized in that said indicating member is a LED light.
6, frequency converter pulse recognition according to claim 2 system is characterized in that said driven element unit is the a316j chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262547U CN202522637U (en) | 2012-01-19 | 2012-01-19 | Inverter pulse recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262547U CN202522637U (en) | 2012-01-19 | 2012-01-19 | Inverter pulse recognition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522637U true CN202522637U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200262547U Expired - Fee Related CN202522637U (en) | 2012-01-19 | 2012-01-19 | Inverter pulse recognition system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202522637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728514A (en) * | 2013-12-30 | 2014-04-16 | 北京京诚瑞达电气工程技术有限公司 | Method for diagnosing fault of low-voltage frequency converter |
-
2012
- 2012-01-19 CN CN2012200262547U patent/CN202522637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728514A (en) * | 2013-12-30 | 2014-04-16 | 北京京诚瑞达电气工程技术有限公司 | Method for diagnosing fault of low-voltage frequency converter |
| CN103728514B (en) * | 2013-12-30 | 2016-08-17 | 北京京诚瑞达电气工程技术有限公司 | A kind of low voltage frequency converter method for diagnosing faults |
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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: 20121107 Termination date: 20210119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |