CN106154972A - A kind of AC servo driver supporting multiple encoder - Google Patents
A kind of AC servo driver supporting multiple encoder Download PDFInfo
- Publication number
- CN106154972A CN106154972A CN201510160291.5A CN201510160291A CN106154972A CN 106154972 A CN106154972 A CN 106154972A CN 201510160291 A CN201510160291 A CN 201510160291A CN 106154972 A CN106154972 A CN 106154972A
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- CN
- China
- Prior art keywords
- encoder
- servo driver
- module
- support
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/41—Servomotor, servo controller till figures
- G05B2219/41002—Servo amplifier
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/41—Servomotor, servo controller till figures
- G05B2219/41393—Synchronize observer with pulse from encoder
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention relates to a kind of AC servo driver that can support multiple encoder, it includes power driving circuit structure, driving circuit structure includes that three phase rectifier module, multiple feed module, power device module, power device drive module, voltage detection module, current detection module, drive circuit is made up of digital circuit and analog circuit, processes analogue signal with modulus conversion chip.The encoder kind that the present invention is directed to single paragraph ac driver of the prior art support is few, versatility is strong, cannot apply in the occasion of the high response of high accuracy, the driver volume more high deficiency of bigger cost of equal-wattage, thering is provided one can support multiple encoder, versatility is the strongest；Precision is high, can apply to the occasion of the high response of high accuracy；Volume is little, cost is relatively low.
Description
Technical field
The present invention relates to a kind of AC servo driver, be specifically related to one and can support multiple volume
The AC servo driver of code device.
Background technology
Kinetic control system, as an important applied field of electric automatization, extensively should
For each department of national economy, it mainly studies the displacement control of motor run and plant equipment
Problem processed.AC servo is the pith that kinetic control system is studied, and is used to essence
Really follow or reappear the feedback control system of certain process, be primarily referred to as controlled volume (system
Output) it is mechanical displacement or velocity of displacement, the feedback control system of acceleration, its effect is
The mechanical displacement making output is accurately tracked by the displacement of input.From the point of view of basic structure, exchange is watched
Dress system is mainly by servo-driver, servomotor and feedback device, connection cable and relevant
The part composition such as accessory.And the precision significant portion of system depends on the encoder in feedback device
Precision, so, driver is high-end to support and the effectively process of multiple high-precision encoder
In servosystem requisite.
In recent years, along with the high speed development of domestic and international AC servo drive system technology, have complete
AC servo drive system, linear servo system and the high-speed electric main shaft etc. of numeral become lathe row
The focus of attention of industry, and it is increasingly becoming the developing direction of servo drive system.With machine industry it is
Example, the requirement to servosystem mainly has: locating speed and profile cut feed speed, location
Precision and profile cut precision, the surface roughness of polish, stability under external interference
Deng.The requirement of above parameter, is a challenge for the encoder of feedback element, tradition
Pulsed incremental encoder have too many difficulties to cope with, it is possible to meet electro spindle height rotating speed, system high accuracy
Product become the demand that market is urgent.
The encoder kind supported due to single paragraph ac driver of the prior art is few, versatility
The strongest；Occasion in the high response of high accuracy cannot be applied, in the automation equipment China of high request
Product servo, almost without the market share, relies primarily on import；The driver volume of equal-wattage is relatively
The most relatively costly.It would therefore be desirable to one can support multiple encoder, precision height, body
Long-pending little, the AC servo driver of low cost.
Summary of the invention
The invention aims to solve above-mentioned the problems of the prior art, it is provided that one can be propped up
Hold multiple encoder, precision is high, volume is little, the AC servo driver of low cost.
For achieving the above object, this invention takes techniques below scheme: provide one to prop up
Hold the AC servo driver of multiple encoder, including power driving circuit structure, described driving
Circuit structure includes three phase rectifier module, multiple feed module, power device module, power
Device drive module, voltage detection module, current detection module, it is characterised in that: described merit
Rate drive circuit is formed by by digital circuit and analog circuit, processes mould with modulus conversion chip
Intend signal.
Described drive circuit also includes that components and parts, described components and parts include driving the special core of quasiconductor
Sheet, operational amplifier.
Described chip uses DS34LV86T and DS34LV87T difference chip.
Described operational amplifier uses TLV2462IDGK amplifier.
Described modulus conversion chip uses ADC121S101 chip.
Described encoder is incremental encoder, absolute value encoder, rotary encoder, just remaining
Any one encoder in string encoder or Heidenhain Endat encoder.
Compared with prior art, it is an advantage of the current invention that: multiple encoder can be supported, as increased
Amount formula encoder, sine and cosine encoder, rotary encoder, Heidenhain Endat encoder and absolutely
To value encoder, versatility is the strongest；Precision is high, can apply to the occasion of the high response of high accuracy；
Volume is little, cost is relatively low.
Accompanying drawing explanation
Fig. 1 is that the present invention supports that the drive circuit of the AC servo driver of multiple encoder is tied
Structure schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings, a kind of embodiment of the present invention is discussed in detail.
This can support the AC servo driver of multiple encoder, ties including power driving circuit
Structure, described driving circuit structure includes three phase rectifier module, multiple feed module, power device
Part module, power device drive module, voltage detection module, current detection module, its feature
It is: described power driving circuit is formed by by digital circuit and analog circuit, uses analog digital conversion
Chip processes analogue signal.Also include that components and parts, described components and parts include driving quasiconductor special
With chip, operational amplifier.Chip uses DS34LV86T and DS34LV87T difference chip.
Operational amplifier uses TLV2462IDGK amplifier.Modulus conversion chip uses ADC121S101
Chip.Encoder is incremental encoder, absolute value encoder, rotary encoder, sine and cosine
Any one encoder in encoder or Heidenhain Endat encoder.
One embodiment of the present invention, incremental encoder is to directly utilize photoelectricity transformation principle
Export three prescription wave impulse A, B and Z phases.A, B two group pulse phase contrast 90 °, thus
Direction of rotation can be judged easily.Encoder axle turns around and can export fixing pulse, pulse
Number is determined by the line number of encoder grating.When needing to improve resolution, available 90 degree of phase places
A, B two paths of signals of difference carries out frequency multiplication or changes high resolution encoder for datum mark location.
By circuit, A, B, Z three-pass DINSAR signal is easy to through difference chip DS34LV86T
To incremental encoder accurate data, it is achieved fairly simple.
Another embodiment of the invention, sine and cosine encoder utilizes directional light to pass through grating
Time, the light intensity of produced Moire fringe is similar to SIN function, moves at Moire fringe
The light-sensitive element of 4 1/4 Moire fringes is placed, it will obtain 4 groups of sine output letters on direction
Number.Sinusoidal signal obtains the electricity of system requirements by circuit after operational amplifier calculation process
Pressure analogue signal, obtains angle value and the velocity amplitude of motor after AD conversion.Circuit structure
Succinctly, process signal accuracy height, speed soon, delay will not be produced, improve servosystem
Response performance.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is also
It is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed,
Can also make various changes and modifications on the premise of without departing from present inventive concept, these changes
Both fall within the protection domain of application claims with improving.
Claims (6)
1. support an AC servo driver for multiple encoder, including power driving circuit
Structure, described driving circuit structure includes three phase rectifier module, multiple feed module, power
Device blocks, power device drive module, voltage detection module, current detection module, and it is special
Levy and be: described power driving circuit is formed by by digital circuit and analog circuit, turns with modulus
Change chip to process analogue signal.
The AC servo driver of the multiple encoder of support the most according to claim 1,
It is characterized in that: described drive circuit also includes that components and parts, described components and parts include driving partly leads
Body special chip, operational amplifier.
The AC servo driver of the multiple encoder of support the most according to claim 2,
It is characterized in that: described chip uses DS34LV86T and DS34LV87T difference chip.
The AC servo driver of the multiple encoder of support the most according to claim 2,
It is characterized in that: described operational amplifier uses TLV2462IDGK amplifier.
The AC servo driver of the multiple encoder of support the most according to claim 1,
It is characterized in that: described modulus conversion chip uses ADC121S101 chip.
The AC servo driver of the multiple encoder of support the most according to claim 1,
It is characterized in that: described encoder is incremental encoder, absolute value encoder, rotary coding
Any one encoder in device, sine and cosine encoder or Heidenhain Endat encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160291.5A CN106154972A (en) | 2015-04-07 | 2015-04-07 | A kind of AC servo driver supporting multiple encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160291.5A CN106154972A (en) | 2015-04-07 | 2015-04-07 | A kind of AC servo driver supporting multiple encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106154972A true CN106154972A (en) | 2016-11-23 |
Family
ID=57338501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160291.5A Pending CN106154972A (en) | 2015-04-07 | 2015-04-07 | A kind of AC servo driver supporting multiple encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106154972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017886A (en) * | 2017-03-09 | 2017-08-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of four reading head digital signal decoders of steel ring encoder |
-
2015
- 2015-04-07 CN CN201510160291.5A patent/CN106154972A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017886A (en) * | 2017-03-09 | 2017-08-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of four reading head digital signal decoders of steel ring encoder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Ningbo HSBC Motion Control Technology Co. Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Ningbo HSBC Motion Control Technology Co. Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
|
| WD01 | Invention patent application deemed withdrawn after publication |