CN204143252U - Frequency Converter Control board test device - Google Patents
Frequency Converter Control board test device Download PDFInfo
- Publication number
- CN204143252U CN204143252U CN201420639833.8U CN201420639833U CN204143252U CN 204143252 U CN204143252 U CN 204143252U CN 201420639833 U CN201420639833 U CN 201420639833U CN 204143252 U CN204143252 U CN 204143252U
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- frequency converter
- converter control
- host computer
- fixture plate
- test fixture
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- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 description 9
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of Frequency Converter Control board test device, this device comprises test fixture plate, host computer, needle-bar, digital multimeter, frequency converter control panel to be measured is connected on test fixture plate by needle-bar, frequency converter control panel to be measured is connected with host computer by USB, host computer is by USB and digital versatile list catenation, test fixture plate is connected with host computer by RS485 serial ports, and the output terminal of test fixture plate is connected with digital multimeter.In test fixture plate, MCU is connected with driving chip, and driving chip is connected with output drive control circuit, and output drive control circuit is connected with needle-bar by input/output port, electronic switch is connected with input/output port, and electronic switch is connected with digital multimeter by signal output interface.By the use of test fixture plate in the utility model Frequency Converter Control board test device, and coordinate with host computer, digital multimeter, improve the testing efficiency of frequency converter control panel, reduce difficulty of test.
Description
Technical field
The utility model relates to frequency converter control panel field tests, particularly relates to a kind of Frequency Converter Control board test device.
Background technology
frequency converter control panel mainly comprises telegraph circuit in self working power, IGBT drive circuit and control circuit, temperature detection, overvoltage detects upper telegraph circuit, analog input and output circuit, number connect test I/O circuit, encoder circuit.Frequency converter control panel is responsible for the control section of whole frequency converter, is the core cell of frequency converter.In frequency converter batch production, need the strict quality controlling frequency converter control panel, the method efficiency of existing frequency converter control panel production test is lower and difficulty of test is larger.
Utility model content
The utility model, for the problem that method of testing efficiency is lower, difficulty of test is larger of frequency converter control panel in existing production test procedure, provides a kind of Frequency Converter Control board test device that can effectively solve the problem.
The utility model solves the technical scheme that its technical matters adopts: a kind of Frequency Converter Control board test device, this device comprises test fixture plate, host computer, needle-bar, digital multimeter, frequency converter control panel to be measured is connected on test fixture plate by needle-bar, frequency converter control panel to be measured is connected with host computer by USB, host computer is by USB and digital versatile list catenation, test fixture plate is connected with host computer by RS485 serial ports, and the output terminal of test fixture plate is connected with digital multimeter.
By technique scheme, described test fixture plate comprises MCU, driving chip, output drive control circuit, input/output port, electronic switch, described MCU controls output drive control circuit by driving chip, output drive control circuit is connected with input/output port, input/output port is connected with frequency converter control panel by needle-bar, input/output port is connected with electronic switch (signal sent by needle-bar is sent to electronic switch by input/output port), and electronic switch is connected with digital multimeter by signal output interface.
By technique scheme, described driving chip is 74 serial driving chip.
By technique scheme, described electronic switch is the electronic switch of 16 paths.
The utility model, has following beneficial effect: by the use of test fixture plate in the utility model Frequency Converter Control board test device, and coordinate with host computer, digital multimeter, improves the testing efficiency of frequency converter control panel, reduces difficulty of test.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model device embodiment;
Fig. 2 is the signal connection layout of the utility model device embodiment;
Fig. 3 is test fixture plate circuit diagram;
Fig. 4 is the electric supply installation schematic diagram of test fixture plate.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1, this Frequency Converter Control board test device comprises test fixture plate, host computer, needle-bar, digital multimeter, frequency converter control panel to be measured is connected on test fixture plate by needle-bar, frequency converter control panel to be measured is connected with host computer by USB, host computer is by USB and digital versatile list catenation, and test fixture plate is connected with host computer by RS485 serial ports, and the output terminal of test fixture plate is connected with digital multimeter.USB(Universal Serial Bus) i.e. USB (universal serial bus).
Test fixture plate comprises MCU, driving chip, output drive control circuit, input/output port, electronic switch, described MCU controls output drive control circuit by driving chip, output drive control circuit is connected with input/output port, input/output port is connected with frequency converter control panel by needle-bar, input/output port is connected with electronic switch (signal sent by needle-bar is sent to electronic switch by input/output port), and electronic switch is connected with digital multimeter by signal output interface.The positive pole of signal output interface, negative pole are connected with the positive pole of digital multimeter, negative pole respectively.MCU (Micro Control Unit) i.e. micro-control unit.Wherein driving chip is 74 serial driving chip, and electronic switch is the electronic switch of 16 paths.
Tested frequency converter control panel is placed on needle-bar, after clicking host computer, just can starts automatic test, and the data of test and the data area pre-set are compared, judge the normal condition of frequency converter control panel circuit.
In test process, Frequency Converter Control board test device adopts single-phase current 220v to power, and has installed fuse and power switch button and power light in Frequency Converter Control board test device.The function of frequency converter control panel is classified according to input and output.For the method for testing of frequency converter control panel output signal port, it is made to output signal by host computer to dsp chip transmitting order to lower levels on frequency converter control panel, simultaneously host computer transmitting order to lower levels, test fixture plate is switched the output signal that gathers frequency converter control panel by circuit and carried out respective handling exports to digital multimeter.Test result, according to host computer order switch test pattern, is uploaded to host computer after every test completes by digital multimeter.Host computer by data with pre-set value and compare, it is qualified to judge whether.For the method for testing of frequency converter control panel input signal port, logical PC control test fixture plate exports corresponding pumping signal and is then sent to the corresponding input port of frequency converter control panel by needle-bar.The DSP of frequency converter control panel processes input signal, and result is uploaded to host computer.Host computer by data with pre-set value and compare, it is qualified to judge whether.By testing all signals of frequency converter control panel input and output, whether final judgement all functions module is normal.
As shown in Figure 2, this figure designates the trend of control planning between host computer and digital multimeter in frequency converter control panel proving installation, frequency converter control panel, test fixture plate and signal input and output.Host computer is responsible for playing according to test step the work relationship controlled between three, plays core control action in whole test.Test fixture plate had both been responsible for process and the collection of frequency converter control panel output signal wherein, simultaneously also for the input interface of frequency converter control panel provides corresponding excitation source signal, 2 input/output port are set in the present embodiment, be respectively input/output port J3 and input/output port X1, be connected with frequency converter controller by needle-bar.Output signal is supplied to test fixture plate by needle-bar according to the order that host computer issues and gathers by frequency converter control panel, the input interface of frequency converter control panel receives the pumping signal that test fixture plate sends over simultaneously, and operation values is returned to host computer and judges by row relax of going forward side by side.
As shown in Figure 4, test fixture plate adopts 220v Alternating Current Power Supply, turns DC Module produce 4 road power supplys by internal communication.5v is converted to the chip power supply that 3v is supplied to test fixture intralamellar part.5v, 15v ,-15v and 24v are powered to frequency converter control panel by needle-bar.As shown in Figure 3, the MCU on working plate is the control core of working plate, and this chip accepts by RS485 the order that host computer issues.And control signal order being converted to modules goes to control output drive control circuit respectively after being driven by 74 serial driving chip.Output drive control circuit is produced corresponding pumping signal and is exported by the IO interface of test fixture plate, outputs signal and is supplied to the input interface of frequency converter control panel as driving source by needle-bar.The frequency converter control panel output signal collected by needle-bar, is input to the IO interface of test fixture plate.MCU controls the electronic switch of 2 16 paths respectively by controlling chip selection signal, and what this circuit can guarantee that the same time only has a road signal outputs to digital multimeter.Adopt the electronic switch of 16 paths can reduce the area of whole working plate, each road signal is all independently simultaneously.Digital multimeter is connected with electronic switch by signal output interface, receives the signal sent from input/output port, and the signal realized test fixture plate exports is tested, and test result is returned to host computer.Wherein electronic switch 1 is connected with input/output port X1, and electronic switch 2 is connected with input/output port J3.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (4)
1. a Frequency Converter Control board test device, it is characterized in that, this device comprises test fixture plate, host computer, needle-bar, digital multimeter, frequency converter control panel to be measured is connected on test fixture plate by needle-bar, frequency converter control panel to be measured is connected with host computer by USB, host computer is by USB and digital versatile list catenation, and test fixture plate is connected with host computer by RS485 serial ports, and the output terminal of test fixture plate is connected with digital multimeter.
2. Frequency Converter Control board test device according to claim 1, it is characterized in that, described test fixture plate comprises MCU, driving chip, output drive control circuit, input/output port, electronic switch, described MCU controls output drive control circuit by driving chip, output drive control circuit is connected with input/output port, input/output port is connected with frequency converter control panel by needle-bar, input/output port is connected with electronic switch, and electronic switch is connected with digital multimeter by signal output interface.
3. Frequency Converter Control board test device according to claim 2, is characterized in that, described driving chip is 74 serial driving chip.
4. the Frequency Converter Control board test device according to Claims 2 or 3, is characterized in that, described electronic switch is the electronic switch of 16 paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639833.8U CN204143252U (en) | 2014-10-31 | 2014-10-31 | Frequency Converter Control board test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639833.8U CN204143252U (en) | 2014-10-31 | 2014-10-31 | Frequency Converter Control board test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143252U true CN204143252U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420639833.8U Expired - Lifetime CN204143252U (en) | 2014-10-31 | 2014-10-31 | Frequency Converter Control board test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143252U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045087A (en) * | 2016-12-26 | 2017-08-15 | 天津瑞能电气有限公司 | The test device and its method of double-fed wind power generator current transformer control cabinet |
| CN108897304A (en) * | 2018-06-28 | 2018-11-27 | 许继集团有限公司 | A kind of test macro of variable pitch driver control panel |
| CN109556652A (en) * | 2017-09-26 | 2019-04-02 | 南京淳泰控制设备有限公司 | A kind of drive dynamic control device test equipment |
| CN111257674A (en) * | 2020-02-20 | 2020-06-09 | 浙江禾川科技股份有限公司 | Test system of converter |
| CN111722620A (en) * | 2020-07-16 | 2020-09-29 | 上海辛格林纳新时达电机有限公司 | Driving and controlling integrated board testing device and method |
-
2014
- 2014-10-31 CN CN201420639833.8U patent/CN204143252U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045087A (en) * | 2016-12-26 | 2017-08-15 | 天津瑞能电气有限公司 | The test device and its method of double-fed wind power generator current transformer control cabinet |
| CN109556652A (en) * | 2017-09-26 | 2019-04-02 | 南京淳泰控制设备有限公司 | A kind of drive dynamic control device test equipment |
| CN108897304A (en) * | 2018-06-28 | 2018-11-27 | 许继集团有限公司 | A kind of test macro of variable pitch driver control panel |
| CN111257674A (en) * | 2020-02-20 | 2020-06-09 | 浙江禾川科技股份有限公司 | Test system of converter |
| WO2021164068A1 (en) * | 2020-02-20 | 2021-08-26 | 浙江禾川科技股份有限公司 | Test system for variable-frequency drive |
| CN111722620A (en) * | 2020-07-16 | 2020-09-29 | 上海辛格林纳新时达电机有限公司 | Driving and controlling integrated board testing device and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |