CN1055356C - Method for stopping starting and controlling step-by-step motor - Google Patents
Method for stopping starting and controlling step-by-step motor Download PDFInfo
- Publication number
- CN1055356C CN1055356C CN98100568A CN98100568A CN1055356C CN 1055356 C CN1055356 C CN 1055356C CN 98100568 A CN98100568 A CN 98100568A CN 98100568 A CN98100568 A CN 98100568A CN 1055356 C CN1055356 C CN 1055356C
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- pulse
- stepping motor
- computer
- control
- step motor
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- Control Of Stepping Motors (AREA)
Abstract
The present invention relates to a method for controlling the start and the stop of step motors. A computer carries out control by the steps: control pulses of a step motor are coded into codes to be stored in a memory of the computer according to pulse the generation regularity of the step motor, the last positioning pulse of the step motor is always kept to start at the next time in stop, and the pulse code is input in the memory to be recorded; in start, the computer controls the power transmission of adjacent magnetic poles of energized magnetic poles in power feeding and power failure. When the step motor is stopped, one to five pulses are controlled to be increased by the computer to compensate for transmission errors. The present invention can eliminate the condition of inaccurate positioning of the step motor, and the step motor can not be out of synchronism after being started correctly.
Description
The present invention relates to the method that a kind of control step motor stops and starting.
Stepping motor is the electromechanical digital-analog converter that electric impulse signal is converted to angular displacement, and the pulse of every reception once command is rotated a fixing angle with regard to the control step motor.Available technology adopting cycle pulse distributor controlling and driving stepping motor is to produce pulse signal by cycle pulse distributor, and by signal amplifier input control step motor, the hardware components fault point is many, disturbs big; This numerical control device is after the pulse of having sent regulation, and trigger recovers cleared condition automatically, and in fact the stepping motor rotating part is in " free state ", causes the displacement phenomenon in the technical process, and it is inaccurate that stepping motor is put in place, can not satisfy technological requirement.Be stopping of control motor, general motor all has brake gear, but because stepping motor is used on the higher process equipment of some control precisions more, brake gear is installed becomes a kind of burden in design, also causes more failure factor.Along with development of computer, it is more and more general that computer participates in technical process as control element, but adopt computer that the stopping of stepping motor, technology that start-up course is controlled be yet there are no report so far.
The objective of the invention is to obtain a kind of with computer to stepping motor stop to start the method for controlling, can eliminate the stepping motor inaccurate phenomenon that puts in place, and correctly start and the step-out phenomenon can not take place.
For achieving the above object, the technical solution of the present invention's proposition is:
A kind of stepping motor stops the start-up control method, is to be controlled as follows by computer:
(1) the step motor control pulse is weaved into code storage in the memory of computer by the pulse generation rule of stepping motor,
(2) last pulse that stepping motor is put in place remains to always and starts next time, and with this pulse code input store record,
Give for the adjacent pole of the magnetic pole of switching on when having a power failure by computer control when (3) starting.
Described stepping motor increases 1-5 pulse with the compensation driving error by computer control when stopping.
Described stepping motor is judged whether to put in place by computer control its arrival time when stopping.
Below the present invention is done and describes in further detail:
Existing stepping motor numerical control device is after having sent regulation (Theoretical Calculation is come out) pulse, trigger recovers reset condition (zero clearing) automatically, and at this moment, in fact stepping motor is in " free state ", if this moment, the frictional force of dynamo-electric bonding part was bigger, motor can not be shifted; Less as dynamo-electric bonding part frictional force, will produce the displacement phenomenon, the position when promptly starting is the position when stopping not, and analysis of the prior art thinks it is inaccurate the causing that put in place by mistake.
Free state after the present invention is stopped stepping motor by computer control changes lock-out state into, last pulse when soon stepping motor puts in place changes not cleared condition into by cleared condition, make last pulse keep sending to a certain group of magnetic pole of stepping motor, rotor is tightly locked with electromagnetic force, make stepping motor before starting next time also in the position that stops, having eliminated a kind of illusion not in place.
After adopting this method control to stop, when stepping motor will start the execution subsequent processing once more, the control impuls of sending must be to send electricity (pros or negative side) for adjacent magnetic pole according to the pulsing rule.For example, stepping motor is the three-phase six-beat pulse, and the three-phase six-beat pulse rule of its forward rotation is: A → AB → B → BC → C → CA → A... ...; Reverse pulse rule is: A → CA → C → BC → B → AB → A... ..., so circulation.When if motor stopping signal occurs in carrying out a certain technical process (breakpoint); keeping the magnetic pole of pulse is A; energising magnetic pole when motor starts once more must be magnetic pole AB (pros) or the CA (negative side) adjacent with A, otherwise desynchronizing state can appear in stepping motor.(annotate: if motor is in free state when stopping; just can not produce step-out); in order to solve the step-out problem; need move breakpoint to stepping motor remembers; at first receive the position and the signal amplification phase sequence setting pulse code of PIO interface according to the stepping motor three phase mains; and set up flag bit at pulse storage address two ends; for example at C; A phase pulse code next address is established a flag bit and is judged; as conforming to the flag bit code; then use absolute branch to instruct A phase pulse code address; send pulse to the A phase; the pulse code of (breakpoint) when then being shut down by the computer control memory if any stopping signal, the code that is about to the magnetic pole of maintenance energising is stored.
If any the signal that restarts; on the code of former pulse, carry out automatically ± 1 by computer controlled; then memory content and flag bit are compared; according to two kinds that relatively come out results not; go to carry out respectively corresponding instruction, control impuls is according to the output of pulse generation rule, and stepping motor just can turn round according to technological requirement; thereby realize the breakpoint protection of stepping motor, guarantee its normal startup.
In addition, in order to eliminate stepping motor machine driving error, whether the present invention detects and puts in place through fixed number, timing, promptly shuts down if put in place.
It is the stroke different according to each transmission mechanism that fixed number detects, calculate the needed umber of pulse of stepping motor angular displacement as radix, consider the error on the machine driving, still can not put in place after the radix pulse has been sent, when stopping, adopting the dynamic compensation of pulse, 1～5 pulse of by-carriage when putting control in place, promptly send a pulse detection once, send 5 pulses at most, as still not in place, then as fault alarm.
For fault is correctly judged, detect adding except putting in place and detect regularly that to make the fault erroneous judgement be zero.Regularly detecting is to calculate according to the vertical stroke counter of stepping motor to send pulse number, and calculates pulsing as requested at interval, obtains having given all burst lengths; For realizing regularly detecting, with a register of computer as time counter, time parameter is pressed the binary system input register, computer whenever leaves interruption once, counter subtracts one automatically after just sending a pulse, when detecting counter and be zero, also do not put in place as at this moment detecting, just as fault alarm.
The present invention is owing to adopt computer stopping, starting and control stepping motor, when by computer control stepping motor being put in place last clapped pulse and remained to startup next time, and do not have rule, at random pulse to carry out succinctly memory cleverly again to last bat, the breakpoint memory when realizing the stopping of motor; When restarting stepping motor, carry out breakpoint identification by computer control, send adjacent control impuls and send according to rule, guarantee to start once more and can normally start, and can eliminate mechanically operated error, eliminate the inaccurate phenomenon that puts in place when stopping.
Claims (3)
1. a stepping motor stops the start-up control method, it is characterized in that: controlled as follows by computer:
(1) the step motor control pulse is weaved into code storage in the memory of computer by the pulse generation rule of stepping motor,
(2) last pulse that stepping motor is put in place remains to always and starts next time, and with this pulse code input store record,
Give for the adjacent pole of the magnetic pole of switching on when having a power failure by computer control when (3) starting.
2. stepping motor according to claim 1 stops the start-up control method, it is characterized in that: described stepping motor increases by 1～5 pulse with the compensation driving error by computer control when stopping.
3. stepping motor according to claim 1 and 2 stops the start-up control method, it is characterized in that: described stepping motor is when stopping,, control its arrival time to judge whether to put in place with the actual pulse number of stepping motor stroke correspondence and the pulse number contrast that calculates by computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100568A CN1055356C (en) | 1998-02-24 | 1998-02-24 | Method for stopping starting and controlling step-by-step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100568A CN1055356C (en) | 1998-02-24 | 1998-02-24 | Method for stopping starting and controlling step-by-step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1195923A CN1195923A (en) | 1998-10-14 |
| CN1055356C true CN1055356C (en) | 2000-08-09 |
Family
ID=5216100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100568A Expired - Fee Related CN1055356C (en) | 1998-02-24 | 1998-02-24 | Method for stopping starting and controlling step-by-step motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055356C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486296B1 (en) * | 2003-01-03 | 2005-04-29 | 삼성전자주식회사 | Method for driving step-motor of compact disc drive |
| CN101458389B (en) * | 2007-12-14 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Focusing device |
| CN102969958B (en) * | 2012-11-22 | 2015-03-04 | 许继电气股份有限公司 | MW-stage cage-type asynchronous machine starting circuit and method |
| CN109356874B (en) * | 2018-10-30 | 2020-10-27 | 深圳和而泰智能控制股份有限公司 | Fan starting method and device and computer storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140927A (en) * | 1995-07-06 | 1997-01-22 | 株式会社优尼希雅杰克斯 | Stepping motor driving method |
-
1998
- 1998-02-24 CN CN98100568A patent/CN1055356C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140927A (en) * | 1995-07-06 | 1997-01-22 | 株式会社优尼希雅杰克斯 | Stepping motor driving method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1195923A (en) | 1998-10-14 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD |
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| CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: Baosteel Group Corporation |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000809 Termination date: 20140224 |