CN106569064B - Frequency converter and its frequency Setting signal fault detection method - Google Patents
Frequency converter and its frequency Setting signal fault detection method Download PDFInfo
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- CN106569064B CN106569064B CN201610951344.XA CN201610951344A CN106569064B CN 106569064 B CN106569064 B CN 106569064B CN 201610951344 A CN201610951344 A CN 201610951344A CN 106569064 B CN106569064 B CN 106569064B
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- signal
- frequency converter
- control unit
- constant speed
- monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention relates to frequency conversion control technique fields, disclose a kind of frequency converter, it include: control unit, rising signals end and dropping signal end, rising signals end and dropping signal end are separately connected respective rising signals monitoring side and dropping signal monitoring side inside frequency converter, rising signals monitoring side and dropping signal monitoring side are all connected with control unit, further include: alarm device, constant speed signal end and the constant speed signal monitoring end being connect with constant speed signal end, constant speed signal monitoring end and alarm device are all connected with control unit, rising signals monitoring side, the signal of monitoring is fed back to control unit respectively by dropping signal monitoring side and constant speed signal monitoring end, control unit receives two or more signal in predetermined delay simultaneously, or when not receiving signal, then trigger alarm device alarm.Also disclose a kind of frequency Setting signal fault detection method of frequency converter.The present invention can in time to frequency converter frequency signal feeding when carry out fault detection, effective protection is by frequency converter and corresponding external equipment.
Description
Technical field
The present invention relates to Frequency Converter Control technical field, in particular to a kind of frequency converter and its inspection of frequency Setting signal failure
Survey method.
Background technique
Frequency Conversion and Speed Regulation Technique is being currently very widely used advanced intelligent control technology；Frequency Converter Control technology
The given of middle frequency generally has rise/fall (UP/DOWN), PID, analog quantity (current or voltage signal), communication modes given.
Rise/fall (UP/DOWN) is given using two switches or pulse signal, is the mistake of a constant speed between two signal conversions
Journey (keep current frequency and revolving speed), when no rising or dropping signal, as constant speed process is really rising or falling in this way
When dropout, frequency converter is always maintained at constant frequency, automatically control frequency conversion system in can not detect in time rise or
The failure that dropping signal is lost.Or it is existed simultaneously since other reasons cause two signals and (up and down while having signal
When, frequency converter is failure to actuate, and constant-speed operation is kept), breakdown judge can not be carried out in time, be unable to the external of effective protection frequency converter
Equipment.
Summary of the invention
The present invention proposes a kind of frequency converter and its frequency Setting signal fault detection method, solves frequency conversion in the prior art
The problem of device frequency signal can not detect failure when breaking down to timing in time.
A kind of frequency converter of the invention, comprising: control unit, rising signals end and dropping signal end, the rising signals
End and dropping signal end are separately connected respective rising signals monitoring side and dropping signal monitoring side, the rising inside frequency converter
Signal monitoring end and dropping signal monitoring side are all connected with described control unit, further includes: alarm device, constant speed signal end and with it is described
The constant speed signal monitoring end of constant speed signal end connection, constant speed signal monitoring end and alarm device are all connected with described control unit,
The signal of monitoring is respectively fed back in the rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end
To described control unit, described control unit receives two or more signal simultaneously in predetermined delay, or does not receive letter
Number when, then trigger alarm device alarm.
Wherein, further includes: display screen connects described control unit, and described control unit is by the signal received and accordingly
The information of receiving port is sent to the display screen and shows.
Wherein, further includes: three signal lamps, three signal lamps are separately connected the rising signals monitoring
End, dropping signal monitoring side and constant speed signal monitoring end.
The present invention also provides a kind of frequency Setting signal fault detection method based on frequency converter described in any of the above-described,
Comprising steps of
S1: rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end real-time monitoring frequency in frequency converter
Rate is to the rising signals end of timing, dropping signal end and the respective input signal of constant speed signal end, and the letter that will be monitored respectively
Number it is sent to control unit；
S2: if described control unit receives two or more signal in predetermined delay simultaneously, or signal is not received
When trigger alarm device alarm.
Wherein, in step S2 further include: show the information of the signal received and correspondingly received port.
Wherein, after step S2 detection is out of order further include: described control unit controls frequency converter according to preset failure
Operational mode is run afterwards.
Frequency converter of the invention increases the detection to constant speed signal, and if being judged in predetermined delay by control unit
Two or more signal is received simultaneously, or does not receive signal alarm, so as to be given in time to frequency converter frequency signal
Timing carries out fault detection, and effective protection is by frequency converter and corresponding external equipment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of frequency converter of the invention；
Fig. 2 is the structural schematic diagram of another frequency converter of the invention.
Specific embodiment
The present invention is clearly and completely described below in conjunction with the technical solution of the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
The frequency converter of first embodiment of the invention is as shown in Figure 1, comprising: control unit 1, rising signals end 2 and decline letter
Number end 3, rising signals end 2 and dropping signal end 3 are separately connected respective rising signals monitoring side 5 and decline letter inside frequency converter
Number monitoring side 6.Rising signals monitoring side 5 and dropping signal monitoring side 6 are all connected with control unit 1.The frequency converter of the present embodiment is also
It include: alarm device 9, constant speed signal end 4 and the constant speed signal monitoring end 7 being connect with constant speed signal end 4, constant speed signal monitoring end 7
Described control unit 1 is all connected with alarm device 9.
The signal of monitoring is respectively fed back in rising signals monitoring side 5, dropping signal monitoring side 6 and constant speed signal monitoring end 7
To control unit 1, control unit 1 (can be set according to actual conditions) in predetermined delay while receive two or more letter
Number, or when not receiving signal, then trigger the alarm of alarm device 9.In actual use, rising signals end 2, dropping signal end 3 and perseverance
Fast signal end 4 is connected to the corresponding interface of the external equipment of Frequency Converter Control, and external equipment is according to actual loading condition point
The signal of signal end 2, dropping signal end 3 and the input request of constant speed signal end 4 raising frequency, frequency reducing or constant speed is not ramped up.Even if
When there is no frequency to rise or fall signal, constant speed signal can be also kept, i.e., only one terminal has letter under normal operation
Number.Therefore, control unit 1 in predetermined delay (can be set according to actual conditions, such as: 3~5 seconds, when startup self-detection all signals
End conducting) two or more signal is received simultaneously, or when not receiving signal, then trigger the alarm of alarm device 9, indicate detection
To failure, staff is reminded to handle.
Further, the frequency converter of the present embodiment further include: display screen 8 connects control unit 1, and control unit 1 will receive
To signal and correspondingly received port information be sent to display screen 8 show, i.e., show that there is signal in which port on display screen 8
Input, such staff judge what failure has occurred according to the signal shown.Such as: three terminals do not have signal,
It then may be the connection disconnection of three terminals and external equipment.
The frequency converter of second embodiment of the invention is as shown in Fig. 2, the frequency converter to first embodiment is similar, the difference is that aobvious
Show that the mode of signal is different, in the present embodiment, comprising: three signal lamps: rising indicator light 10, decline indicator light 11 and perseverance
Fast indicator light 12.Rise indicator light 10, decline indicator light 11 and constant speed indicator light 12 and is separately connected the rising signals monitoring side
5, dropping signal monitoring side 6 and constant speed signal monitoring end 7, i.e. rising signals monitoring side 5, dropping signal monitoring side 6 and constant speed letter
Number monitoring side 7, which has detected, directly lights corresponding indicator light when signal, while control unit 1 also triggers the alarm of alarm device 9.Work
Make personnel and what failure is had occurred by indicator light judgement.
The present embodiment do not need to show by the control signal of control unit 1 relative to first embodiment, structure relative to
Embodiment 1 is simpler.
The third embodiment of the present invention additionally provides a kind of frequency Setting signal fault detection side based on above-mentioned frequency converter
Method, comprising:
Step S1, rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end in frequency converter are supervised in real time
Measured frequency will monitor respectively to the rising signals end of timing, dropping signal end and the respective input signal of constant speed signal end
Signal be sent to control unit；
Step S2 if described control unit receives two or more signal in predetermined delay simultaneously, or is not received
The alarm device alarm is triggered when signal.
In the present embodiment, in step S2 further include: show the information of the signal received and correspondingly received port.
In the present embodiment, after step S2 detection is out of order further include: described control unit controls frequency converter according to default
Failure after operational mode run, such as: continue to run, shut down or according to preset frequency run.
The frequency converter of the embodiment of the present invention increases the detection to constant speed signal, and judges to prolong predetermined by control unit
If when it is interior receive two or more signal simultaneously, or signal alarm is not received, so as in time to frequency converter frequency
Fault detection is carried out when signal feeding, effective protection is by frequency converter and corresponding external equipment.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of frequency converter, comprising: control unit, rising signals end and dropping signal end, the rising signals end and decline letter
Number end is separately connected respective rising signals monitoring side and dropping signal monitoring side, the rising signals monitoring side inside frequency converter
Be all connected with described control unit with dropping signal monitoring side, which is characterized in that further include: alarm device, constant speed signal end and with institute
The constant speed signal monitoring end of constant speed signal end connection is stated, it is single that constant speed signal monitoring end and alarm device are all connected with the control
Member,
The signal of monitoring is fed back to institute respectively by the rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end
State control unit, described control unit receives two or more signal simultaneously in predetermined delay, or when not receiving signal,
Then trigger the alarm device alarm.
2. frequency converter as described in claim 1, which is characterized in that further include: display screen connects described control unit, described
The information of the signal received and correspondingly received port is sent to the display screen and shown by control unit.
3. frequency converter as described in claim 1, which is characterized in that further include: three signal lamps, three signals refer to
Show that lamp is separately connected the rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end.
4. a kind of frequency Setting signal fault detection method based on frequency converter described in any one of claims 1 to 3, feature
It is, comprising steps of
S1: rising signals monitoring side, dropping signal monitoring side and constant speed signal monitoring end real-time monitoring frequency in frequency converter are given
Rising signals end, dropping signal end and the respective input signal of constant speed signal end of timing, and the signal monitored respectively is sent out
It send to control unit；
S2: if described control unit touching when making a reservation for receive two or more signal simultaneously in delay, or not receiving signal
Alarm of sending out alarm device described.
5. the frequency Setting signal fault detection method of frequency converter as claimed in claim 4, which is characterized in that also wrapped in step S2
It includes: showing the information of the signal received and correspondingly received port.
6. the frequency Setting signal fault detection method of frequency converter as described in claim 4 or 5, which is characterized in that step S2 inspection
After measuring failure further include: described control unit control frequency converter is run according to operational mode after preset failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610951344.XA CN106569064B (en) | 2016-10-27 | 2016-10-27 | Frequency converter and its frequency Setting signal fault detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951344.XA CN106569064B (en) | 2016-10-27 | 2016-10-27 | Frequency converter and its frequency Setting signal fault detection method |
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| CN106569064A CN106569064A (en) | 2017-04-19 |
| CN106569064B true CN106569064B (en) | 2019-02-26 |
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| CN107796086A (en) * | 2017-08-31 | 2018-03-13 | 珠海格力电器股份有限公司 | A kind of control method of equipment unit, device, storage medium and equipment unit |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584541A (en) * | 2004-06-01 | 2005-02-23 | 浙江大学 | Air-conditioner compressor performance testboard and testing method for vehicle based on PLC |
| CN101079572A (en) * | 2006-05-24 | 2007-11-28 | 立锜科技股份有限公司 | Mode conversion control circuit and method of charge pump |
| CN101162858A (en) * | 2007-11-27 | 2008-04-16 | 周宏强 | Electric machine external cooling fan |
| CN101539847A (en) * | 2009-04-16 | 2009-09-23 | 北京中星微电子有限公司 | Random number generating device and method thereof |
| CN101567657A (en) * | 2008-04-23 | 2009-10-28 | 本田技研工业株式会社 | Capacitor-compensation-type generator |
| CN102725654A (en) * | 2010-01-27 | 2012-10-10 | 丰田自动车株式会社 | Radar system and direction detecting method |
| CN102826429A (en) * | 2012-09-12 | 2012-12-19 | 佛山市南海裕华建筑机械有限公司 | Construction elevator capable of operating at modulated frequency and power frequency |
| CN102946087A (en) * | 2012-11-26 | 2013-02-27 | 江苏力普电子科技有限公司 | Low voltage frequency converter provided with overvoltage protection function and overvoltage protection method of low voltage frequency converter |
| CN104141604A (en) * | 2014-06-30 | 2014-11-12 | 深圳市英威腾电气股份有限公司 | Frequency converter special for air compressor and air compressor variable-frequency drive control system |
| CN104141964A (en) * | 2014-04-22 | 2014-11-12 | 上海金自天正信息技术有限公司 | Air supply system and method of industrial furnace |
| CN104538935A (en) * | 2014-12-12 | 2015-04-22 | 中冶南方（武汉）自动化有限公司 | Frequency converter fault redundancy protecting method |
| CN205507527U (en) * | 2016-02-01 | 2016-08-24 | 无锡中誉东莲电气技术有限公司 | Testing device for control panel of variable -frequency drive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8977215B2 (en) * | 2008-03-07 | 2015-03-10 | Electronic Warfare Associates, Inc. | Frequency translation device and wireless communication system using the same |
-
2016
- 2016-10-27 CN CN201610951344.XA patent/CN106569064B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584541A (en) * | 2004-06-01 | 2005-02-23 | 浙江大学 | Air-conditioner compressor performance testboard and testing method for vehicle based on PLC |
| CN101079572A (en) * | 2006-05-24 | 2007-11-28 | 立锜科技股份有限公司 | Mode conversion control circuit and method of charge pump |
| CN101162858A (en) * | 2007-11-27 | 2008-04-16 | 周宏强 | Electric machine external cooling fan |
| CN101567657A (en) * | 2008-04-23 | 2009-10-28 | 本田技研工业株式会社 | Capacitor-compensation-type generator |
| CN101539847A (en) * | 2009-04-16 | 2009-09-23 | 北京中星微电子有限公司 | Random number generating device and method thereof |
| CN102725654A (en) * | 2010-01-27 | 2012-10-10 | 丰田自动车株式会社 | Radar system and direction detecting method |
| CN102826429A (en) * | 2012-09-12 | 2012-12-19 | 佛山市南海裕华建筑机械有限公司 | Construction elevator capable of operating at modulated frequency and power frequency |
| CN102946087A (en) * | 2012-11-26 | 2013-02-27 | 江苏力普电子科技有限公司 | Low voltage frequency converter provided with overvoltage protection function and overvoltage protection method of low voltage frequency converter |
| CN104141964A (en) * | 2014-04-22 | 2014-11-12 | 上海金自天正信息技术有限公司 | Air supply system and method of industrial furnace |
| CN104141604A (en) * | 2014-06-30 | 2014-11-12 | 深圳市英威腾电气股份有限公司 | Frequency converter special for air compressor and air compressor variable-frequency drive control system |
| CN104538935A (en) * | 2014-12-12 | 2015-04-22 | 中冶南方（武汉）自动化有限公司 | Frequency converter fault redundancy protecting method |
| CN205507527U (en) * | 2016-02-01 | 2016-08-24 | 无锡中誉东莲电气技术有限公司 | Testing device for control panel of variable -frequency drive |
Non-Patent Citations (2)
| Title |
|---|
| HHT方法在变频调速异步电机故障诊断中的应用;张文蓉;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20110415(第4期);全文 |
| 变频器的控制功能 第2讲 变频器的频率给定方式;李方园;《自动化博览》;20080315(第3期);全文 |
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