CN1812251A - Program-control frequency converting device - Google Patents
Program-control frequency converting device Download PDFInfo
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- CN1812251A CN1812251A CNA2005100492168A CN200510049216A CN1812251A CN 1812251 A CN1812251 A CN 1812251A CN A2005100492168 A CNA2005100492168 A CN A2005100492168A CN 200510049216 A CN200510049216 A CN 200510049216A CN 1812251 A CN1812251 A CN 1812251A
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- frequency converting
- converting device
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Abstract
This invention relates to a kind of programmable frequency converter, by which users can control the engine in the light of their demands. It concludes voltage protection circuit, rectifying filter circuit, low-voltage switching power supply circuit, drive and power output circuit, signal disposing circuit, overcurrent and overload detection circuit and three-phase frequency converting output of controlling engine. The signal disposing circuit concludes frequency converting speed setting controller, programmable processor and user program memory. The user-defined programs input into the user program processor through user program memory. The signals processed by the program processor and the signals of overcurrent and overload detection circuit are used as the input signals of frequency converting speed setting controller. Its output signals are connected with drive and power output circuit. This invention has frequency converter of universal engines. It resolves the questions that the modality of frequency converter can not change and the work is simplex.
Description
Technical field
The present invention relates to a kind of frequency converter of threephase asynchronous machine, relate in particular to a kind of program-control frequency converting device of can the user motor and its exterior mechanical being controlled according to the needs of oneself.
Background technology
The frequency converter of prior motor is to develop to form on the basis of buncher, and it is compared with buncher, and the service behaviour of variable-frequency governor is steadily good with economize on electricity property, and the field of its application spreads all over every profession and trades such as light industry, household electrical appliances, metallurgy, machinery thus.The variable-frequency governor of motor mainly is by the frequency to motor; the isoparametric control of voltage realizes the starting of motor; stop; acceleration-deceleration etc.; but it is also on the low side for the mechanical control precision of having relatively high expectations; also have by the control of the electric current of motor and revolutional slip being realized the accurate control of angle; but Control Parameter is more and motor is had relatively high expectations; price is also higher; also have by micro-processor controlled; applied for patent if any the people: a kind of variable-frequency governor and frequency Varying and speed changing method thereof (99109144.2), its host CPU is connected with the keyboard video-stream processor respectively by circuit; the protection importation; the terminal board collecting part; E
2ROM, reset circuit, latch connect with host CPU and EPROM respectively by circuit, and high seven bit address of EPROM link to each other with host CPU by circuit, and motor-drive circuit links with host CPU and module respectively by circuit.By the data-signal driver module, to reach the purpose of control motor variable-frequency speed-regulating.This variable-frequency governor is simple structure not only, and the output waveform quality is good, and harmonic components is low, but owing to the control formula is all finished in advance, in the course of the work can not be according to client's changes in demand, it only is that a three phase electric machine is carried out Simple Program control.Also the someone has applied for such patent: a kind of AC frequency conversion speed regulator (02266673.1); it comprises three phase mains; three-phase commutation bridge; filter capacitor; inverter bridge; motor; microprocessor; memory; drive circuit; current detection circuit; overcurrent protection and fault reset circuit; keyboard; it is characterized in that having increased the residual voltage testing circuit; motor speed feedback circuit and communication chip; and be microprocessor CPU; main control software control program and Keyboard Control program are injected in the keyboard communication; with the Detection ﹠ Controling of software mode execution voltage, communication chip can be carried out the control of host computer to many frequency converters.But to still fixing immutable of the control of frequency converter, and as need all the other machinery control, also must external certain smart circuit, a kind of control circuit can only use in single a kind of plant equipment, do not have versatility, and development cost is higher, costs an arm and a leg.
Summary of the invention
The present invention mainly provides a kind of can control motor and outside mechanical system thereof according to user's oneself demand, has the program-control frequency converting device of versatility; Solve existing in prior technology and can not change the single technical problem of working because the formula of frequency converter is fixing.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of program-control frequency converting device; comprise excess voltage protection; coupled current rectifying and wave filtering circuit; be connected with then and drive and power output circuit; its output is connected with signal processing circuit and over-current and-load testing circuit; link to each other with the three phase variable frequency output port of motor then; described current rectifying and wave filtering circuit is connected with the low tension switch power circuit; its out-put supply is connected on the signal processing circuit; be connected with input on the signal processing circuit; output port; signal processing circuit comprises the variable frequency regulating speed control device; programmed processor and user program memory; user-defined program is input in the user program processor by user program memory; signal after the process program processor is handled and the signal in the over-current and-load testing circuit are as the input signal of variable frequency regulating speed control device, and its output signal is connected in driving and the power output circuit.Program in program storage among the present invention and the programmed processor can be by user oneself definition programming, may be defined as simple function or associativity function, can control motor starting, stop, motion such as acceleration-deceleration, and change and stop freely, the position is accurate, rotating links up, and the acceleration and deceleration shake is little, can realize that the high speed of machinery is accurately controlled.
As preferably, include several timers, counter and angle controller in the described signal processing circuit, it links to each other with the user program processor, can select a kind of and user program processor wherein to link to each other, and also can select wherein two kinds or three kinds in parallel with the user program processor.The work of these devices, resetting all can have user definition, and the different phase of the formula that can write the user realizes different functions.
As preferably, described input, output port are multi-functional input, output port.And these input/output ports are to come the function of control port according to user's definition according to user-defined.Be connected with mechanical switch, travel switch, inductor and encoder etc. on the input port, output port is connected with as relay, electromagnetically operated valve etc., what specifically connects what is controlled, and can define selection by user oneself.
As preferably, the user program processor is connected with the input of control external signal, the decoder of output.
As preferably, the user program processor is connected with display and keyboard port outward.The display that connects on the port can also can be the display of demonstration external circuit working condition for showing the display of frequency converter work.
As preferably, the low tension switch power circuit is provided with several low-tension supply ports that uses for external circuit.Can use for a plurality of external circuits.
As preferably, have in low tension switch power circuit one termination to offer the power protecting circuit that external circuit is used.
Therefore, the present invention has the running of flexible control motor, and the user can be according to needs programming Control motor and the external mechanical devices of oneself, make motor change and stop freely that the position is accurate, rotating links up, the acceleration and deceleration shake is little, can realize that the high speed of machinery is accurately controlled.Simultaneously, price is comparatively cheap, and is rational in infrastructure, easy to use.
Description of drawings:
Accompanying drawing 1 is the circuit control schematic block diagram of program-control frequency converting device.
Accompanying drawing 2 is connection diagrams that program-control frequency converting device is applied in magic band heat seal segment cutter.
The concrete example of implementing:
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as shown in Figure 1, program-control frequency converting device of the present invention comprises excess voltage protection, current rectifying and wave filtering circuit, driving and power output circuit, over-current and-load testing circuit, signal processing circuit and input that can user oneself programming definition, output port etc.Signal processing circuit comprises variable frequency regulating speed control device, user program memory, user program processor, timer, counter and angle controller etc.AC power is connected to current rectifying and wave filtering circuit after being linked into excess voltage protection, forms the DC power supply that is fit to load request by rectifying and wave-filtering; Be connected with driving and power output circuit and low tension switch power circuit behind the current rectifying and wave filtering circuit, be connected with the over-current and-load testing circuit behind driving and the power output circuit, suitable with the size of current that guarantees the supply motor; The low tension switch power circuit is provided with several low-voltage output mouths, and the voltage of the output of one of them port is powered to signal processing circuit, and remaining port is powered to external mechanical devices; Low tension switch also is connected with power protecting circuit outward, is to supply with the low-tension supply that external circuit is used by the power supply behind the power protecting circuit.Timer, the kind of counter and angle controller and the selection of number can be according to user's oneself needs, select to use timer, any one of counter and angle controller or multiple combination, they all are connected in parallel on the user program processor, timer, the setting of counter and angle controller, make that the running of motor is more steady, can be good at realizing the mechanically actuated operation of high-speed, high precision, and in starting, stop, rotating, shake is little during acceleration and deceleration, the position is accurate, the program and the timer of external user input, counter, the control signal of angle controller is in the user program processor after the analyzing and processing, be input in the variable frequency regulating speed control device, signal with the over-current and-load testing circuit feeds back in driving and the power output circuit, the starting of control motor, stop, rotating, acceleration-deceleration etc.
On the user program processor, also be connected with input that the input/output signal of exterior mechanical is deciphered, export program control decoder, the signal processing circuit outside is connected with multi-functional input, output port, these ports can be defined according to user's oneself demand, generally be connected with mechanical switch, travel switch, inductor and encoder etc. on the input port, be connected with relay, electromagnetically operated valve etc. on the output port.In order to show the operation conditions of exterior mechanical, on the user program processor, be connected with the display of the inside and outside operation conditions of demonstration and the keyboard of control programming.
When program-control frequency converting device of the present invention is applied in the magic band heat seal segment cutter (as shown in Figure 2), adopted a timer, an angle controller, a counter, multi-functional input, output port are that the needs according to user oneself define, and are not the fixed routines that is solidificated in the program storage.
Multi-functional input port is defined as:
X0: cut tape starting
X1: starting continuously
X2: crawl
X3: stop
X4: counter reset
X5: inductor signal
Multi-functional output port definition:
Y0: punch press electromagnet
Y1: running indicator light
Y2: cut tape light
Procedure definition:
Above 1-6 action is defined as process 1-6 respectively, uses P1 respectively, P2, P3, P4, P5, P6 represent, simultaneously the initial condition after the frequency converter energising are defined as process 0, represent with P0.
Programming:
Write procedure name earlier, then the program in this process is write in the back, J1 wherein, C1, T1 represent counter respectively No. 1, No. 1 timer, 1 bugle degree controller, DP represents the user data display, JR represents counter reset, SP represents motor speed, and TS and CS represent that timer and angle controller just establish.
Circuit connects as shown in Figure 2
P0:P1=X0 enters the P1 process during button by cutting band
P5=X1 enters the P5 process during by continuous button
P6=X2 enters the P6 process by inching button
JR1=X4 resets by counter reset button hour counter
P1:T1=0.12 timer 1 is arranged to 0.12 second
TS1=1 is provided with the back timing earlier
Y0=1 Y0 output attracts the punch press electromagnet
Y1=1 Y1 electricity output running indicator light is bright
It is bright that tape light is cut in the output of Y2=1 Y2 electricity
P0=X3 enters the P0 process during by stop button
The timing of P2=T1 timer then enters the P2 process
P2:T1=0.10 timer 1 is arranged to 0.10 second
TS1=1 is provided with the back timing earlier
Y1=1 Y1 electricity output running indicator light is bright
P0=X3 enters the P0 process during by stop button
The timing of P3=T1 timer then enters the P3 process
It is 40HZ that P3:SP=40.0 is provided with motor speed
Y1=1 Y1 electricity output running indicator light is bright
P0=X3 enters the P0 process during by stop button
The P4=X4 workpiece enters the P4 process during to inductor
It is 40HZ that P4:SP=40.0 is provided with motor speed
It is 720 degree that C1=720 is provided with the angle controller angle
CS1=1 is provided with afterwards earlier and works
Y1=1 Y1 electricity output running indicator light is bright
The J1=1 counter data adds 1
DP=J1 delivers to counter data on the user display
P0=X3 enters the P0 process during by stop button
The P1=C1 angle then enters the P0 process
It is 30HZ that P5:SP=30 is provided with motor speed
Y1=1 Y1 electricity output running indicator light is bright
P0=X3 enters the P0 process during by stop button
DP=SP delivers to motor speed on the user display
It is 5.0HZ that P6:SP=5.0 is provided with motor speed
P0=X4 enters the P0 process when decontroling inching button
Y1=1 Y1 electricity output running indicator light is bright
Above program is imported by external keyboard, enters the user program processor by importing program control decoder, through the processing of program processor, outputs in the program control decoder of output, exports by output port then.
Compactness rational in infrastructure of the present invention under the situation that realizes identical functions, has reduced overall volume, can be according to user's requirement oneself programming, to control more flexibly, variable-frequency governor combines original frequency conversion function and program control part, reduced cost, installed and used also very convenient.
Claims (10)
1. program-control frequency converting device; comprise excess voltage protection; coupled current rectifying and wave filtering circuit; be connected with then and drive and power output circuit; its output is connected with signal processing circuit and over-current and-load testing circuit; link to each other with the three phase variable frequency output port of motor then; it is characterized in that: described current rectifying and wave filtering circuit is connected with the low tension switch power circuit; its out-put supply is connected on the signal processing circuit; be connected with input on the signal processing circuit; output port; signal processing circuit comprises the variable frequency regulating speed control device; programmed processor and user program memory; user-defined program is input in the user program processor by user program memory; signal after the process program processor is handled and the signal in the over-current and-load testing circuit are as the input signal of variable frequency regulating speed control device, and its output signal is connected in driving and the power output circuit.
2. program-control frequency converting device according to claim 1, it is characterized in that: include several timers, counter and angle controller in the described signal processing circuit, can select a kind of and user program processor wherein to link to each other, also can select wherein two kinds or three kinds in parallel with the user program processor.
3. program-control frequency converting device according to claim 1 and 2 is characterized in that: described input, output port are multi-functional input, output port.
4. program-control frequency converting device according to claim 1 and 2 is characterized in that: the user program processor is connected with the input of control external signal, the decoder of output.
5. program-control frequency converting device according to claim 3 is characterized in that: the user program processor is connected with the input of control external signal, the decoder of output.
6. program-control frequency converting device according to claim 1 and 2 is characterized in that: the user program processor is connected with display and keyboard port outward.
7. program-control frequency converting device according to claim 5 is characterized in that: the user program processor is connected with display and keyboard port outward.
8. program-control frequency converting device according to claim 1 and 2 is characterized in that: the low tension switch power circuit is provided with several low-tension supply ports that uses for external circuit.
9. program-control frequency converting device according to claim 7 is characterized in that: the low tension switch power circuit is provided with several low-tension supply ports that uses for external circuit.
10. program-control frequency converting device according to claim 7 is characterized in that: be connected with power protecting circuit on the low tension switch power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100492168A CN100452640C (en) | 2005-01-26 | 2005-01-26 | Program-control frequency converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100492168A CN100452640C (en) | 2005-01-26 | 2005-01-26 | Program-control frequency converting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1812251A true CN1812251A (en) | 2006-08-02 |
| CN100452640C CN100452640C (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100492168A Expired - Fee Related CN100452640C (en) | 2005-01-26 | 2005-01-26 | Program-control frequency converting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100452640C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035397A (en) * | 2009-09-24 | 2011-04-27 | Abb公司 | Frequency converter |
| CN103713546A (en) * | 2013-12-17 | 2014-04-09 | 深圳众为兴技术股份有限公司 | Motor motion control method and device |
| CN105607517A (en) * | 2016-01-13 | 2016-05-25 | 曹百权 | Time-sharing control energy-saving instrument of frequency converter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA883913B (en) * | 1987-06-03 | 1989-02-22 | Hitachi Ltd | Inverter control apparatus |
| CN1074209C (en) * | 1999-06-18 | 2001-10-31 | 林海光 | Frequency-varying speed regulator and its speed regulation method |
| NL1020987C2 (en) * | 2002-07-03 | 2004-01-06 | Electrische App Nfabriek Capax | Drive device for an electric motor. |
| CN2569442Y (en) * | 2002-08-29 | 2003-08-27 | 上海格立特电力电子有限公司 | AC frequency conversion speed regulator |
-
2005
- 2005-01-26 CN CNB2005100492168A patent/CN100452640C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035397A (en) * | 2009-09-24 | 2011-04-27 | Abb公司 | Frequency converter |
| US9054598B2 (en) | 2009-09-24 | 2015-06-09 | Abb Oy | Frequency converter |
| CN102035397B (en) * | 2009-09-24 | 2016-01-20 | Abb技术有限公司 | Frequency converter |
| CN103713546A (en) * | 2013-12-17 | 2014-04-09 | 深圳众为兴技术股份有限公司 | Motor motion control method and device |
| CN103713546B (en) * | 2013-12-17 | 2017-05-17 | 深圳众为兴技术股份有限公司 | Motor motion control method and device |
| CN105607517A (en) * | 2016-01-13 | 2016-05-25 | 曹百权 | Time-sharing control energy-saving instrument of frequency converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100452640C (en) | 2009-01-14 |
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| CP01 | Change in the name or title of a patent holder |
Address after: Zhejiang Province, Yiwu City Garden District 17 1 unit 102 room Patentee after: Li Bangqing Address before: Zhejiang Province, Yiwu City Garden District 17 1 unit 102 room Patentee before: Li Bangqing |
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| 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: 20090114 Termination date: 20170126 |