CN101304232A - Apparatus and method for automatically recognizing AC servo motor model number and parameter - Google Patents
Apparatus and method for automatically recognizing AC servo motor model number and parameter Download PDFInfo
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- CN101304232A CN101304232A CNA2007100279448A CN200710027944A CN101304232A CN 101304232 A CN101304232 A CN 101304232A CN A2007100279448 A CNA2007100279448 A CN A2007100279448A CN 200710027944 A CN200710027944 A CN 200710027944A CN 101304232 A CN101304232 A CN 101304232A
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Abstract
The invention discloses a device for automatically recognizing the model and parameter of an AC servo motor and a method thereof. The device comprises an AC servo motor which is provided with an absolute type encoder and a servo driver which drives the AC servo motor; wherein, the absolute type encoder comprises a first memory which stores the model of the AC servo motor; the servo driver comprises a data signal processor which is provided with a second memory, the second memory stores a plurality of groups of models of AC servo motors and the default parameters corresponding to the models. The data signal processor reads out the default parameter which corresponds to the model of the AC servo motor from the second memory according to the model of the AC servo motor in the first memory. The device and method of the invention automatically recognizes the model and parameter of the AC servo motor without memorizes the models of different motors by human, thus has the advantages of conveniently operation and safety in use for the operators.
Description
Technical field
The present invention relates to the device and method of a kind of automatic identification AC servo motor model number and parameter.
Background technology
At present, the parameter intelligent management has obtained extensive use in the AC servo device.But the adjusting of AC servo motor parameter is a very hard thing, need or under varying environment, slowly regulate according to the AC servo motor of different model, till satisfaction, finally just can find out one group and make motor can be operated in the parameter under the kilter, we are called optimal control parameter.Usually, optimized parameter is cured in the external memory storage on the control board.The AC servo motor parameter also is divided into parameter current and default parameter, and parameter current is a parameter of participating in motor operation control directly, generally operates on the ram in slice of DSP, can online modification, and after the DSP power down, it can not preserved.In general the parameter that mixes up just can not at will be touched, otherwise can influence its control performance, and default parameter is exactly in order to prevent that the parameter of electric machine from disorderly being revised or misoperation so that this AC servo motor can't normally move and one group of default parameters providing, this group parameter can make motor normally move, but may not necessarily make machine operation in the best condition, it generally is solidificated on the interior non-volatile memory cells of DSP sheet.The AC servo motor of different model can be carried out model, all have one group of default parameter corresponding with it under each model.
When the servo-driver power-up initializing, just optimized parameter can be loaded into, and its value is composed to parameter current, thereby parameter current has been participated in the control computing directly.When because to such an extent as to misoperation or parameter when disorderly being revised back motor cisco unity malfunction, can revert to default parameter value with the parameter current value of this motor.When the execution parameter default value recovers, the motor model that at first needs the different AC servo motors of artificial enquiry, manually to this model of device input, device is tabled look-up to the default parameter that is kept in the DSP according to the model of input then, thereby finds default parameter value that should motor.But there is following shortcoming like this: because the corresponding model of AC servo motor, in the time will carrying out its parameter default value recovery, need artificially to this motor model of device input, make it to become when the pairing model of front motor, therefore, the commissioning staff need remember the model of different AC servo motors, causes it to use inconvenience, make mistakes easily.
Therefore, the method and the device of a kind of automatic identification AC servo motor model number of our active demand and parameter.
Summary of the invention
Based on the deficiencies in the prior art, one of problem that the present invention need solve is to provide the device of a kind of automatic identification AC servo motor model number and parameter.
Two of the problem that the present invention need solve is to provide the method for a kind of automatic identification AC servo motor model number and parameter.
For one of addressing the above problem, the device of automatic identification AC servo motor model number provided by the invention and parameter comprises the AC servo motor that is provided with absolute type encoder, drive the servo-driver of this AC servo motor, described absolute type encoder comprises first memory, this first memory has described AC servo motor model number, this servo-driver comprises the digital signal processor with second memory, have some groups of AC servo motor model numbers in the described second memory and to default parameter that should model, digital signal processor is read from second memory default parameter that should AC servo motor model number according to the AC servo motor model number in the first memory.
As an embodiment, described first memory is also preserved optimized parameter.Described absolute type encoder links to each other with digital signal processor by interface circuit, and this interface circuit comprises the differential signal amplifier.Described digital signal processor and absolute type encoder adopt semiduplex Serial Data Transfer Mode mode and RS-485 interface standard.
For address the above problem two, the method for automatic identification AC servo motor model number provided by the invention and parameter comprises the steps:
(1), digital signal processor is read the AC servo motor model number in the first memory;
(2), digital signal processor is read from second memory default parameter that should AC servo motor model number according to the AC servo motor model number read;
As an embodiment, described digital signal processor is read the default parameter of corresponding described AC servo motor model number in the second memory by the method for tabling look-up.Described digital signal processor is read the AC servo motor model number in the first memory by communicating by letter with absolute type encoder.AC servo motor model number is communicated by letter with absolute type encoder by digital signal processor and is write in the described first memory.
Compared with prior art, the device and method of automatic identification AC servo motor model number of the present invention and parameter since in the first memory in the absolute type encoder of AC servo motor storage to model that should motor.When needs recover default parameter, this device communicating by letter by digital signal processor and absolute type encoder, read this model, digital signal processor in the servo-driver can be found out from second memory default parameter that should motor according to this model is very fast, thereby implement device is discerned the function of AC servo motor model number and parameter automatically, no longer need manually to remember the model of different motors, make operating personnel easy to operate like this, safe in utilization.
For making the present invention easier to understand, further set forth the device and method of automatic identification AC servo motor model number of the present invention and parameter below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 discerns the structure function module map of the device of AC servo motor model number and parameter automatically for the present invention.
Fig. 2 discerns the interface circuit schematic diagram of DSP and absolute type encoder in preferred embodiment of device of AC servo motor model number and parameter automatically for the present invention.
Fig. 3 discerns the flow chart of the method for AC servo motor model number and parameter automatically for the present invention.
Fig. 4 is the loading flow chart of motor model, parameter in the method for the present invention.
Fig. 5 is each parameter conversion schematic diagram in the method for the present invention.
Embodiment
The present invention is applied on the AC servo, and the parameter in the AC servo generally is divided three classes, parameter current, default parameter and optimized parameter.Parameter current is a parameter of participating in motor operation control directly, operates on the ram in slice of digital signal processor (DSP), can online modification, and after the digital signal processor power down, it can not preserved.Optimal control parameter is or slowly to regulate under varying environment according to the AC servo motor of different model, makes motor can be operated in the parameter under the kilter up to finally finding out one group.Default parameter is in order to prevent that the parameter of electric machine from disorderly being revised or misoperation so that this AC servo motor can't normally move and one group of default parameters providing, and this group parameter can make motor normally move, but may not necessarily make machine operation in the best condition.The present invention is provided with different motor models to the various kinds motor, the corresponding one group of default parameter of each motor model.
With reference now to accompanying drawing, the preferred embodiment that the present invention discerns the device of AC servo motor model number and parameter is automatically described, at first with reference to figure 1, Fig. 2, the AC servo driver 20 that the device of present embodiment comprises AC servo motor 10 and drives this AC servo motor 10.Described AC servo motor 10 is provided with absolute type encoder 30, and these absolute type encoder 30 inside have first memory 31.In first memory 31, there is the motor model of this AC servo motor 10 and to optimized parameter that should model.Described AC servo driver 20 comprises digital signal processor 21, and these digital signal processor 21 inside are provided with second memory 211 and RAM212.Have the default parameter of motor model and corresponding every kind of motor model of multiple motor in this second memory 211, and wherein comprised in the first memory 31 the motor model and to default parameter that should model.
As Fig. 1-2, described digital signal processor 21 links to each other by external interface circuit 40 with absolute type encoder 30, and adopts semiduplex Serial Data Transfer Mode mode and RS-485 interface standard.Described absolute type encoder 30 also comprises inner difference interface circuit 32, and this inside difference interface circuit 32 comprises the first differential signal amplifier 321.Described external interface circuit 40 links to each other with absolute type encoder 30 by the first differential signal amplifier 321, and this external interface circuit 40 comprises the second differential signal amplifier 41.The second differential signal amplifier 41 comprises data output pin 411, data input pin 412 and external control pin 413.Described digital signal processor 21 also comprises the SCIRXD port 211 that is connected with data output pin 411, the SCITXD port 212 that is connected with data input pin 412 and the GPIOB0 port 213 that is connected with external control pin 413, SCITXD port 211 is the transmission command port of digital signal processor 21, SCIRXD port 212 is the reception FPDP of digital signal processor 21, and GPIOB0 port 213 is the port of the control second differential signal amplifier 41 data transfer directions.When external control pin 413 is high level, data output pin 411 dateouts, when external control pin 413 was low level, data were from 412 inputs of data input pin.
When AC servo motor 10 dispatches from the factory, need carry out initialization to its absolute type encoder 30, be digital signal processor 21 by communicating by letter, be written in the first memory 31 with the model of this AC servo motor 10 in the second memory 211 and to default parameter that should model with absolute type encoder 30.This AC servo motor 10 just has model and the initial optimized parameter of oneself like this.Compare with prior art, no longer need digital signal processor 21 expansion external memory stores optimized parameters, thereby save certain cost.When device works on power, digital signal processor 21 can be read motor model and the optimized parameter in the absolute type encoder 30 automatically, and this optimized parameter is delivered among the RAM212 of digital signal processor 21 inside, to compose and give parameter current, parameter current can be participated in s operation control directly.When since misoperation or parameter disorderly revised when needing to recover default parameter, as long as the artificial signals of giving 20 1 recoveries of AC servo driver default parameter, digital signal processor 21 in the AC servo driver 20 can be according to the AC servo motor model number of reading from first memory 31, automatically from second memory 211, read default parameter that should AC servo motor model number with the method for tabling look-up, then this default parameter is sent among the RAM212 of digital signal processor 21 inside, compose and give parameter current, allow default value participate in the control of motor, motor can normally be moved.So just no longer need manually to remember the model of different motors, do not need manually to AC servo input motor model, not only make operating personnel easy to operate, also avoid operating personnel, guarantee that AC servo is safe in utilization because of the phenomenon that the input error model causes motor to damage.Parameter current can also make motor rotation at kilter through the function of AC servo self-control, and the parameter value under this state can be used as the optimized parameter value and deposits in the first memory 31, substitutes original optimized parameter value.When system powered on operation next time, this value can directly be composed to parameter current.
With reference now to accompanying drawing 3-5, the preferred embodiment that the present invention discerns the method for AC servo motor model number and parameter is automatically described.When realizing present embodiment, at first need to provide the device of the AC servo driver that comprises AC servo motor and drive this AC servo motor.Described AC servo motor is provided with absolute type encoder, and this absolute type encoder inside has first memory.Described AC servo driver comprises digital signal processor, and this digital signal processor inside is provided with second memory and RAM.The default parameter that has motor model and corresponding every kind of motor model of multiple motor in this second memory.In the present embodiment, need load model and parameter to described this device, be illustrated in figure 3 as the flow chart that device is loaded model and parameter, it may further comprise the steps:
A1, AC servo power on, and bring into operation.
A2, AC servo initialization.
A3, judging whether motor model, optimized parameter have write in the first memory of motor, is to go to step a6; , do not go to next step.
A4, digital signal processor be by communicating by letter with absolute type encoder, with the motor model, default parameter that should the motor model is composed to the optimized parameter in the first memory.
A5, judge motor whether need the operation, be to carry out next step; Not, ends with system operation.
A6, digital signal processor are read motor model, the optimized parameter in the first memory, and this optimized parameter is composed to parameter current.
A7, parameter current are written into the parameter management program in the digital signal processor.
A8, parameter management program manage the operation control that realizes motor after the computing to parameter.
A9, the operation of end AC servo.
Wherein, step a4, a5 just can move when only moving for the first time after Motor Production Test, no longer carry out this operation later on.When motor in the course of the work, find since the misoperation or the parameter of electric machine by random modification, motor can not normally move, and at this moment needs to recover default parameter, makes the motor can operate as normal.AC servo need be discerned the model of motor and find out default parameter that should the model motor in recovering the process of default parameter, and its step is as follows:
B1, the instruction that send to recover default parameter to digital signal processor.
After b2, digital signal processor receive instruction,, read the motor model in the first memory in the absolute type encoder by communicating by letter with absolute type encoder.
B3, digital signal processor find out this motor model according to the motor model of reading with the method for tabling look-up and to default parameter that should the motor model from second memory.
B4, digital signal processor are read the above-mentioned default parameter that finds, and this default parameter is composed to the parameter current among the RAM.
B5, parameter current manage computing by the parameter management program, and control motor operation makes the AC servo can operate as normal.
When stopping AC servo when work, parameter current can be composed to the optimized parameter in the first memory, uses when powering on operation next time for AC servo.
Because when motor moved for the first time, this device had write the model of this motor to the first memory of this motor.In the AC servo running, when needing to recover default parameter, no longer need manually to remember the model of this motor and import this model afterwards.This device can be read this motor model automatically and finds out default parameter that should model according to the order that recovers default parameter, thereby realizes the function of identification motor automatically and default parameter thereof.This method has been simplified operating personnel's operating process, avoids causing because of artificial input error model the generation of accident.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (8)
1. automatic device of identification AC servo motor model number and parameter, it comprises the AC servo motor that is provided with absolute type encoder, drive the servo-driver of this AC servo motor, described absolute type encoder comprises first memory, this first memory has described AC servo motor model number, this servo-driver comprises the digital signal processor with second memory, have some groups of AC servo motor model numbers in the described second memory and to default parameter that should model, digital signal processor is read from second memory default parameter that should AC servo motor model number according to the AC servo motor model number in the first memory.
2. the device of automatic identification AC servo motor model number as claimed in claim 1 and parameter, it is characterized in that: described first memory is also preserved optimized parameter.
3. the device of automatic identification AC servo motor model number as claimed in claim 1 and parameter, it is characterized in that: described absolute type encoder links to each other with digital signal processor by interface circuit, and this interface circuit comprises the differential signal amplifier.
4. the device of automatic identification AC servo motor type as claimed in claim 1 and parameter is characterized in that: described digital signal processor and absolute type encoder adopt semiduplex Serial Data Transfer Mode mode and RS-485 interface standard.
5. discern the method for AC servo motor model number and parameter automatically with the described device of claim 1, it may further comprise the steps:
(1), digital signal processor is read the AC servo motor model number in the first memory;
(2), digital signal processor is read from second memory default parameter that should AC servo motor model number according to the AC servo motor model number read.
6. discern the method for AC servo motor model number and parameter automatically as device as described in the claim 5, it is characterized in that: described digital signal processor is read the default parameter of corresponding described AC servo motor model number in the second memory by the method for tabling look-up.
7. discern the method for AC servo motor model number and parameter automatically as device as described in the claim 5, it is characterized in that: described digital signal processor is read the model of the AC servo motor in the first memory by communicating by letter with absolute type encoder.
8. discern the method for AC servo motor model number and parameter automatically as device as described in the claim 5, it is characterized in that: the model of AC servo motor is communicated by letter with absolute type encoder by digital signal processor and is write in the described first memory.
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| CN103051261A (en) * | 2012-12-07 | 2013-04-17 | 海尔集团公司 | Motor driving device and driving method |
| CN103281035A (en) * | 2013-05-22 | 2013-09-04 | 海信容声(广东)冰箱有限公司 | Automatic motor identification method and variable frequency motor driving circuit |
| CN103778077A (en) * | 2012-10-17 | 2014-05-07 | 深圳市三艾科技有限公司 | Device and method for automatically identifying power model of driver |
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| CN111525842A (en) * | 2020-04-16 | 2020-08-11 | 中国航空工业集团公司西安飞机设计研究所 | Airborne motor drive control system |
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| CN103780173A (en) * | 2012-10-25 | 2014-05-07 | 海尔集团公司 | Control method matched with various kinds of direct current brushless motor drive programs |
| CN103051261B (en) * | 2012-12-07 | 2015-12-30 | 海尔集团公司 | Motor driver and driving method |
| CN103051261A (en) * | 2012-12-07 | 2013-04-17 | 海尔集团公司 | Motor driving device and driving method |
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| CN103281035B (en) * | 2013-05-22 | 2016-08-17 | 海信容声(广东)冰箱有限公司 | A kind of motor automatic identifying method and variable frequency motor-driving circuit |
| CN105549477A (en) * | 2015-12-25 | 2016-05-04 | 南京冠腾自动化科技有限公司 | Data reading apparatus of servo driver |
| CN105515480A (en) * | 2016-01-25 | 2016-04-20 | 广东美的暖通设备有限公司 | Motor control method, control device and air conditioner |
| CN108270376A (en) * | 2018-01-22 | 2018-07-10 | 青岛海尔空调电子有限公司 | The method and device of air conditioning frequency converter parameter is configured |
| CN108491239A (en) * | 2018-03-21 | 2018-09-04 | 清能德创电气技术（北京）有限公司 | A kind of FPGA driving methods for supporting a variety of resolution ratio and rate |
| CN108491239B (en) * | 2018-03-21 | 2021-07-02 | 清能德创电气技术（北京）有限公司 | FPGA driving method supporting multiple resolutions and rates |
| CN109617458A (en) * | 2018-11-26 | 2019-04-12 | Tcl家用电器（合肥）有限公司 | Motor identification device and method |
| CN111327241A (en) * | 2018-12-14 | 2020-06-23 | 郑州宇通客车股份有限公司 | Motor identification method and vehicle applying same |
| CN111327241B (en) * | 2018-12-14 | 2022-05-20 | 宇通客车股份有限公司 | Motor identification method and vehicle applying same |
| CN110034718A (en) * | 2019-04-22 | 2019-07-19 | 河北工业大学 | New-type electric machine driving control system under industry internet environment |
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