CN2245829Y - Numeric controlled motor frequency conversion speed governor - Google Patents
Numeric controlled motor frequency conversion speed governor Download PDFInfo
- Publication number
- CN2245829Y CN2245829Y CN 95236691 CN95236691U CN2245829Y CN 2245829 Y CN2245829 Y CN 2245829Y CN 95236691 CN95236691 CN 95236691 CN 95236691 U CN95236691 U CN 95236691U CN 2245829 Y CN2245829 Y CN 2245829Y
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- CN
- China
- Prior art keywords
- circuit
- input
- interface circuit
- interface
- frequency
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Abstract
The utility model relates to a frequency conversion speed regulation device of a numeric controlled motor. A control protection circuit is composed of a monolithic computer control circuit, a drive circuit, a voltage, current and temperature detecting circuit, an input circuit and an interface circuit. A monolithic computer is adopted to process the operational control signals and the frequency control signals of the interface end of outer control signals and the operating parameters which are input by operating keys, and then the utility model can carry out numerical control. Users can set and regulate the operating parameters of a frequency converter conveniently and visually; having the advantages of convenient and flexible control, wide application range, favorable performance, low cost, safe operation and a plurality of fault detection and protection circuits, the utility model is easy to connect with other controllers to form an automatic control system.
Description
The utility model relates to a kind of speed regulation controller for motor, particularly a kind of digital control motor variable-frequency speed-regulating device.
The various motor variable-frequency speed-regulating devices that occur in the prior art all exist function singleness, the narrow weak point of application surface." motor variable-frequency speed-regulating device " (92217513.6), " motor variable-frequency speed-regulating device " (93229285.2) as the Chinese patent bulletin, all can only change frequency converter frequency by the adjusting knob on the panel, can not accept foreign frequency and set and move control signal, can not be to frequency converter input of control commands and data, thereby the user can not be according to the operational factor of loading condition and service requirement adjustment frequency converter, and can only the unit manual operation move, can't realize the operation of online control or far-end remote control.
The purpose of this utility model is in order to overcome above-mentioned weak point, and provides a kind of and have stronger human-computer dialogue function and external control signal interface capability, is easy to the digital control motor variable-frequency speed-regulating device with the online composition automatic control system of other controllers.
Digital control motor variable-frequency speed-regulating device of the present utility model comprises casing; the current rectifying and wave filtering circuit that is connected in the motor main circuit connects inverter circuit; single chip machine controlling circuit; drive circuit; voltage, electric current, temperature sensing circuit; it is characterized in that also having an input and interface circuit in its control protection electric circuit, input comprises signal input end and interface circuit, keyboard and input interface circuit thereof and display and interface circuit thereof with interface circuit.Single chip machine controlling circuit receives the frequency control signal, operation control signal of signal input end and interface circuit thereof and from the operational parameter data of keyboard and input interface circuit input thereof, through scm software handle the back directly output pwm signal to drive circuit amplify the operation that inverter circuit is controlled in the back.Single chip machine controlling circuit also receives the output signal of voltage, electric current, temperature sensing circuit, monitors operation conditions and its operate as normal of protection of inverter circuit.Inverter circuit operational factor, the code of single chip machine controlling circuit output, the data of user's input are shown by display by display and interface circuit thereof.
Fig. 1 is the utility model contour structures schematic diagram;
Fig. 2 is the utility model circuit block diagram;
Fig. 3 is the utility model circuit theory diagrams;
Fig. 4 is the single chip machine controlling circuit schematic diagram;
Fig. 5 is the drive circuit schematic diagram;
Fig. 6 is voltage, electric current, temperature sensing circuit schematic diagram;
Fig. 7 is input and interface circuit schematic diagram.
Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.
Digital control motor variable-frequency speed-regulating device of the present utility model is to connect inverter circuit 3 by current rectifying and wave filtering circuit 2, at single chip machine controlling circuit 4, drive circuit 5, voltage, electric current, temperature sensing circuit 6, under the effect of input and interface circuit 7, realize the frequency control of motor.
Current rectifying and wave filtering circuit 2 is by three-phase bridge rectifier Z and resistance R
d, capacitor C
d, fuse R
sConstitute, three-phase alternating-current supply exports three-phase inverting circuit 3 to by input R, S, T input behind rectifying and wave-filtering, and the inverter of inverter circuit 3 is by six power model VT
1-VT
6Form, work under the driving of drive circuit 5, output U, V, W connect the motor power end.
Single chip machine controlling circuit 4 is by one chip microcomputer D
1(8098), address latch D
6(74CS373), memory under program D
7(M27128), data memory D
8(2817A), decoder D
9(74CS138), buffer D
5(CD4503) form.By D
1The HSO of HSO mouth
0-HSO
5Export six road pwm signals to D
5, through D
5The buffering back is by Q
1-D
6End exports drive circuit 5 to.
Pwm signal drive circuit 5 is by photoelectrical coupler N
9-N
14, crystal three plate pipe V
11-V
13, V
31-V
23, V
31-V
33, V
41-V
43, V
51-V
53, V
61-V
63Form.By buffer D
5Output, through Q
1-Q
6Six road pwm signals of end input are respectively through photoelectrical coupler N
9-N
14Isolation, transistor V
11-V
13, V
31-V
33, V
51-V
53, V
41-V
43, V
61-V
63, V
21-V
23Export the power model VT of inverter circuit 3 after the amplification to
1-VT
6B
1, e
1, b
3, e
3, b
5, e
5, b
4, e
4, b
6, e
6, b
2, e
2The utmost point, N
26-N
29It is respectively the power supply of drive circuit.
Voltage detecting circuit in voltage, electric current, the temperature sensing circuit 6 is by comparator N
21, photoelectrical coupler N
16, N
17With pressurizer N
22Constitute, the voltage detection signal of major loop is by S
3-1, S
3-2The end input is through N
21Comparison, N
16And N
17After the isolation, export one chip microcomputer D respectively to
1HSIO and P
2.1End.Current detection circuit is by operational amplifier N
19, photoelectrical coupler N
15, comparator N
20Constitute, the current detection signal of major loop is by S
2-1, S
2-2The end input is through N
19Amplification, N
15Export one chip microcomputer D after the isolation to
1ACH6 end sampling, simultaneously through N
20Export D relatively to
1EXINT end.The radiator temperature testing circuit is by temperature transducer RT and photoelectrical coupler N
18Constitute, RT is serially connected in N
18Input circuit in, N
18Output be connected to D
1HSI
1End.
Signal input end and interface circuit 8 thereof comprise input terminal S
1, parallel interface chip D
2(8255), the operation control signal is by external control signal input terminal S
1S
1-1-S
1-8The end input is respectively through photoelectrical coupler N
1-N
8Export D after the isolation to
2PA
0-PA
7End is by D
2Export D again to
1Data/address bus AD
0-AD
7End; Frequency control signal input S
1-10, S
1-11Respectively with D
1ACH4, ACH5 be connected S
1-9Termination power, S
1-12The termination signal ground.In display and the interface circuit 10 thereof, by D
2PB mouth (PB
0-PB
7) output the display segments coded signal through driver D
4Export the segment encode signal end S of display after the driving to
5-1-S
5-8End, D
2PC
0-PC
2End connects decoder D
3, D
3Output connect the bit code end S of display
4-1-S
4-6End, display is made of five LED charactrons.In keyboard and the input interface circuit 9 thereof, functional parameter options button " F ", parameter, data modification key " ↑ ", " ↓ ", data are preserved key " S " and are connected D respectively
2PC4-PC7 end.
After each electronic component welds, operation keys " F ", " ↑ ", " ↓ ", " S " and display are fixed on casing 1 front panel external control signal input terminal S
1With input terminal R, S, the T of major loop, lead-out terminal U, V, W are fixed on casing 1 end.
The operation principle of this numeral control motor variable-frequency speed-regulating device is as follows: energized, three-phase alternating-current supply is held input by R, S, T, adds to inverter circuit 3 behind current rectifying and wave filtering circuit 2 rectifying and wave-filterings, exports the motor power end to by U, V, W end.The user can set the operational factor of frequency converter as starting commentaries on classics distance, current overload coefficient, voltage/frequency characteristic etc. by operation keys, use " F " key selection function parameter during setting, revise supplemental characteristic with " ↑ " and " ↓ " key, preserve data with " S " key, during setting, display front two display parameters code, back three video datas.Operation control signal, frequency control signal are by external control signal input terminal S
1Respectively control of conversion device running status as start, shut down, just change, counter-rotating, adjusting microinching etc. and frequency converter output frequency, output frequency can be by external voltage, Current Control or the control of this machine.Single-chip microcomputer D
1According to parameter of user and operation control signal,, after amplifying, drive circuit 5 exports each power model VT of inverter circuit 3 to from HSO port output pwm signal
1-VT
6Base stage b and emitter e between, control of conversion device operation shows service datas such as output frequency, voltage simultaneously.Single-chip microcomputer D
1Monitor frequency converter ruuning situation by voltage, electric current, temperature sensing circuit 6; when detecting overcurrent, short circuit, overload, overvoltage, when under-voltage or overheated, blocking pwm signal output immediately, the protection variable-frequency governor; display shows failure code information, so that fix a breakdown.
The utility model is owing to adopt above design, use microcomputer that the operational parameter data of operation control signal, frequency control signal and the operation keys input of external control signal input terminal is handled the back and speed regulator is carried out digital control, use the minimum number operation keys to become man-machine dialog interface with display group.The user can set, adjust the operational factor of frequency converter easily and intuitively; strengthened the function of variable-frequency governor greatly; multi-functional external control signal interface makes the operation control of variable-frequency governor convenient, flexible; range of application is wide, and performance is good, and the control circuit element is few; cost is low; have various faults and detect and protective circuit, safe and reliable to operation, be easy to and the online composition automatic control system of other controllers.
Claims (2)
1; a kind of digital control motor variable-frequency speed-regulating device; comprise casing (1); the current rectifying and wave filtering circuit (2) that is connected in the motor main circuit connects inverter circuit (3); single chip machine controlling circuit (4); drive circuit (5); voltage; electric current; temperature sensing circuit (6); it is characterized in that also having an input and interface circuit (7) in its control protection electric circuit; input comprises signal input end and interface circuit (8) thereof with interface circuit (7); keyboard and input interface circuit thereof (9) and display and interface circuit (10) thereof; single chip machine controlling circuit (4) receives the frequency control signal of signal input end and interface circuit (8) thereof; operation control signal and from the operational parameter data of keyboard and input interface circuit (9) thereof input; directly output pwm signal to drive circuit (5) amplifies the operation that inverter circuit (3) is controlled in the back after scm software is handled; single chip machine controlling circuit (4) also receives voltage; electric current; the output signal of temperature sensing circuit (6); monitor operation conditions and its operate as normal of protection of inverter circuit (3); the inverter circuit operational factor of single chip machine controlling circuit (4) output; code, the data of user's input are shown by display by display and interface circuit (10) thereof.
2, digital control motor variable-frequency speed-regulating device as claimed in claim 1 is characterized in that signal input end and interface circuit thereof (8) comprise input terminal S
1, parallel interface chip D
2, the operation control signal is by external control signal input terminal S
1S
1-1-S
1-8The end input is respectively through photoelectrical coupler N
1-N
8Export D after the isolation to
2PA0-PA7 end, by D
2Export D again to
1Data/address bus AD0-AD7 end; Frequency control signal input S
1-10, S
1-11Respectively with D
1ACH4, ACH5 be connected S
1-9Termination power, S
1-12The termination signal ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236691 CN2245829Y (en) | 1995-04-24 | 1995-04-24 | Numeric controlled motor frequency conversion speed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236691 CN2245829Y (en) | 1995-04-24 | 1995-04-24 | Numeric controlled motor frequency conversion speed governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2245829Y true CN2245829Y (en) | 1997-01-22 |
Family
ID=33879621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95236691 Expired - Fee Related CN2245829Y (en) | 1995-04-24 | 1995-04-24 | Numeric controlled motor frequency conversion speed governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2245829Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468937C (en) * | 2001-11-14 | 2009-03-11 | 通力股份公司 | Electric motor drive |
| CN102055345A (en) * | 2011-01-12 | 2011-05-11 | 芜湖瑞科技术有限公司 | Frequency converter for digital generator set |
| CN101814885B (en) * | 2010-05-12 | 2012-02-01 | 唐山松下产业机器有限公司 | Wire feed speed regulating system |
| CN101814878B (en) * | 2009-02-19 | 2012-05-23 | 中山大洋电机股份有限公司 | DC brushless motor controller integrating various input signal interface circuits and control method thereof |
| CN101807827B (en) * | 2009-09-25 | 2012-07-18 | 方建成 | Digital motor |
| CN107681945A (en) * | 2016-08-01 | 2018-02-09 | 普罗蒂恩电子有限公司 | Method and controller for controlled motor |
| CN107907334A (en) * | 2017-12-13 | 2018-04-13 | 浙江工业大学 | The analog platform that shaft current influences dynamo bearing performance degradation |
| CN111158287A (en) * | 2019-12-31 | 2020-05-15 | 博睿斯重工股份有限公司 | Clean lifting and intelligent carrying system and use method thereof |
-
1995
- 1995-04-24 CN CN 95236691 patent/CN2245829Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468937C (en) * | 2001-11-14 | 2009-03-11 | 通力股份公司 | Electric motor drive |
| CN101814878B (en) * | 2009-02-19 | 2012-05-23 | 中山大洋电机股份有限公司 | DC brushless motor controller integrating various input signal interface circuits and control method thereof |
| CN101807827B (en) * | 2009-09-25 | 2012-07-18 | 方建成 | Digital motor |
| CN101814885B (en) * | 2010-05-12 | 2012-02-01 | 唐山松下产业机器有限公司 | Wire feed speed regulating system |
| CN102055345A (en) * | 2011-01-12 | 2011-05-11 | 芜湖瑞科技术有限公司 | Frequency converter for digital generator set |
| CN107681945A (en) * | 2016-08-01 | 2018-02-09 | 普罗蒂恩电子有限公司 | Method and controller for controlled motor |
| CN107907334A (en) * | 2017-12-13 | 2018-04-13 | 浙江工业大学 | The analog platform that shaft current influences dynamo bearing performance degradation |
| CN111158287A (en) * | 2019-12-31 | 2020-05-15 | 博睿斯重工股份有限公司 | Clean lifting and intelligent carrying system and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |