CN2716876Y - CAN bus type intelligent electric executor controller - Google Patents
CAN bus type intelligent electric executor controller Download PDFInfo
- Publication number
- CN2716876Y CN2716876Y CNU2004200703259U CN200420070325U CN2716876Y CN 2716876 Y CN2716876 Y CN 2716876Y CN U2004200703259 U CNU2004200703259 U CN U2004200703259U CN 200420070325 U CN200420070325 U CN 200420070325U CN 2716876 Y CN2716876 Y CN 2716876Y
- Authority
- CN
- China
- Prior art keywords
- control
- bus
- utility
- model
- circuit
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Control By Computers (AREA)
Abstract
The utility model relates to a CAN bus type intelligent electric executor controller, belonging to the field of industrial automation control. It is designed for the electric valve controller controlled by the analogue signal which has the disadvantages that it has lower control precision, inconvenience of the connection and maintenance, and it is unable to carry out the internetwork communication, etc. This device adopts a technology of digital control and technology of bus communication and it takes a microprocessor AD89C55 as a control center. The utility model device is composed of modules such as an input channel, a feedback channel, a current output, a program memory, a key, a display, a motor control, a bus communication and a power supply, etc. With all this parts, it can realize the intelligent control of the valve motor operator. It is the characterized in that it is provided with high control precision, the ability to telecommunicate and it is convenient to set a parameter. The utility model can be widely applicable to the autocontrol in the industrial process of industrial production branches such as oilfield, chemical industry, metallurgy, power station, etc.
Description
Technical field
The utility model belongs to industrial automation control field, mainly relates to the CAN bus type intelligent electric actuator control device of using in the industrial processes.
Background technology
Fieldbus is the system that is applied in the production scene, realizes the digital communication of bidirectional linked list multinode between the computerized measurement opertaing device, has higher automatization level and application prospect, is one of focus of current automatic field technical development.Traditional valve electric actuator generally is to adopt simulating signal to control, so the raising of control accuracy is very restricted, on-the-spot wiring and maintenance are all inconvenient, and can't realize network service, bring certain difficulty for the application of fieldbus.The adjustment of simulating signal also is the comparison difficulty in addition.
The utility model content
The purpose of this utility model is that it can be realized preferably to the digital control of valve electric actuator and bus communication ability for industrial automation control provides a kind of CAN bus type intelligent electric actuator control device.
The utility model is realized by following measure, mainly is made up of microprocessor, input channel and feedback channel, electric current output, program storage, button and modules such as demonstration, Electric Machine Control, bus communication and power supply.It is characterized in that: adopt the AT89C55 microprocessor as the control core, linking to each other with AT89C55 with interface by circuit is connected to: a, input channel and the feedback channel circuit be made up of AD7705; B, the current output circuit of forming by TLC5615, LM528 and baric flow (V/I) change-over circuit; C, E
2The program storage that PROM chip X5045 forms; The bus communication module that d, bus driver chip 82C250 form by photoelectrical coupler 6N137 and CAN controller SJA1000; E, motor control module are signal interlock circuits that is made of the SN75452 chip; F, button and LCD display module; G, power module.
The utility model has the advantages that realized the intelligent digital control to valve electric actuator, control accuracy can reach 0.2%; The simultaneity factor parameter is provided with conveniently, can operate by the demonstration of LCD Chinese and four buttons, and accuracy is greatly improved than analog control mode.On the other hand, this intelligent actuator control device is supported the CAN bus, has the long-distance on-line communication capacity, can realize remote monitoring and fault diagnosis.Adopt AT89C55 to control core, finish system digits control and communication process, simultaneously supporting bus signal feeding and the given dual mode of simulating signal as system.Be widely used in the automatic control of industrial production sector production runes such as oil, chemical industry, metallurgy, power station.
Description of drawings
Accompanying drawing is a structured flowchart of the present utility model.
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described.Analog current signal is given to be undertaken after I/V is converted to magnitude of voltage by precision resistance, be converted to digital quantity by high-precision 16 (∑-Δ conversion) AD converter AD7705, be used for system's control, can guarantee effectively that the Systems Theory control accuracy reaches more than 0.1%.The valve position signal feedback is the voltage signal that obtains by the feedback potentiometer with the valve coaxial rotation, through being used for valve location control after the AD7705 conversion.Electric Machine Control adopts the SN75452 chip to constitute a signal interlock circuit, and assurance system drive motor simultaneously rotates and reverse.Timely and effective in order to guarantee to the control of motor, adopt electronic switch element BTA16 to carry out motor-driven.Electric current output is made up of 10 DA converter TLC5615 and a pressure/stream (V/I) change-over circuit, is used for the current signal output of valve opening.Bus communication partly adopts CAN controllers SJA1000 and bus driver chip 82C250 to constitute the bus communication circuit, and is middle by high-speed photoelectric coupler 6N137 connection, when guaranteeing the system communication ability, system and external signal kept apart.
House dog and E
2The PROM module adopts the X5045 chip, makes system have the hardware watchdog function, and can stored parameter.
System parameter setting is undertaken by free-standing button and the demonstration of LCD Chinese with adjusting.Button adopts four free-standing buttons, is respectively applied for and selects parameter, adds, subtracts, function such as affirmation.The parameter that can set comprises: zero point, range, the signal upper limit, signal lower limit, dead band, time delay, operating characteristic, the mode of action, node address, CAN baud rate, wrong way, control mode etc.122X32 lattice graphics lcd LCD display module is adopted in the display part, by the mode that Chinese shows, carries out state and shows and the parameter setting.Simultaneity factor also has the function of automatic adjusting, can search for parameters such as zero point, range automatically.
Power supply adopts switch power module to provide ± the 12V power supply, and system's power supply is held good security.
Claims (1)
1, a kind of CAN bus type intelligent electric actuator control device, mainly form by microprocessor, input channel and feedback channel, electric current output, program storage, button and demonstration, Electric Machine Control, bus communication and power module, it is characterized in that: adopt the AT89C55 microprocessor as the control core, linking to each other with AT89C55 with interface by circuit is connected to: a, input channel and the feedback channel circuit be made up of AD7705; B, the current output circuit of forming by TLC5615, LM528 and baric flow change-over circuit; C, E
2The program storage that PROM chip X5045 forms; The bus communication module that d, bus driver chip 82C250 form by photoelectrical coupler 6N137 and CAN controller SJA1000; E, motor control module are signal interlock circuits that is made of the SN75452 chip; F, button and LCD display module; G, power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200703259U CN2716876Y (en) | 2004-08-13 | 2004-08-13 | CAN bus type intelligent electric executor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200703259U CN2716876Y (en) | 2004-08-13 | 2004-08-13 | CAN bus type intelligent electric executor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2716876Y true CN2716876Y (en) | 2005-08-10 |
Family
ID=34873843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200703259U Expired - Fee Related CN2716876Y (en) | 2004-08-13 | 2004-08-13 | CAN bus type intelligent electric executor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2716876Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388822B (en) * | 2008-10-24 | 2011-05-11 | 上海华魏自动化设备有限公司 | Automatic pole changing device for CAN bus and method therefor |
| CN102323792A (en) * | 2011-04-26 | 2012-01-18 | 肇庆市志成气动有限公司 | Valve terminal controller device |
| CN103336477A (en) * | 2013-07-15 | 2013-10-02 | 贵州大学 | Analog output module based on CAN bus |
| CN113791558A (en) * | 2021-05-10 | 2021-12-14 | 中国海洋石油集团有限公司 | Intelligent Christmas tree circuit adopting embedded system |
-
2004
- 2004-08-13 CN CNU2004200703259U patent/CN2716876Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388822B (en) * | 2008-10-24 | 2011-05-11 | 上海华魏自动化设备有限公司 | Automatic pole changing device for CAN bus and method therefor |
| CN102323792A (en) * | 2011-04-26 | 2012-01-18 | 肇庆市志成气动有限公司 | Valve terminal controller device |
| CN103336477A (en) * | 2013-07-15 | 2013-10-02 | 贵州大学 | Analog output module based on CAN bus |
| CN113791558A (en) * | 2021-05-10 | 2021-12-14 | 中国海洋石油集团有限公司 | Intelligent Christmas tree circuit adopting embedded system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203101925U (en) | Intelligent controller for electric actuating mechanism | |
| CN103244736B (en) | A kind of electric actuator with potentiometer and controlling method thereof | |
| CN203434899U (en) | High-precision servo controller used for multiple motors | |
| CN106881903A (en) | A kind of servo-pressing machine control system | |
| CN201133508Y (en) | Frequency conversion type intelligent type valve actuating unit | |
| CN2716876Y (en) | CAN bus type intelligent electric executor controller | |
| CN202056383U (en) | Intelligent actuator for controlling valve of alternating current machine | |
| CN201066831Y (en) | Frequency conversion execution mechanism for DC brushless servo electromotor | |
| CN2731509Y (en) | Single-chip processer controlled water supplying appts. having constant pressure and energy saving functions | |
| CN205001610U (en) | Cell -phone remote control executor | |
| CN203038038U (en) | Intelligent electric actuating mechanism control system | |
| CN2687725Y (en) | Corner type intelligent electric actuating mechanism | |
| CN100543204C (en) | A kind of drive unit of combing machine nipper | |
| CN101439574B (en) | Film-delivering equipment for injection mould | |
| CN203272951U (en) | Electric actuator provided with potentiometer | |
| CN205420467U (en) | BOF steelmaking produces process control system based on PLC | |
| CN2826319Y (en) | Liquid level control apparatus for high temperature generator of lithium bromide absorption type water chilling and heating unit | |
| CN209265245U (en) | A kind of intelligent plastic flexible pipe based on plc, which chases after, cuts control system | |
| CN210433886U (en) | Automatic water supply and water receiving control module | |
| CN202757379U (en) | Controlling device of cold storage | |
| CN202280907U (en) | Field bus-type valve electric device | |
| CN203387446U (en) | Star-delta voltage-reduction starting control circuit | |
| CN203019366U (en) | Double-mechanical-arm coordinated control system | |
| CN207378241U (en) | LCD shows the electric valve controller with power-off switch valve and overload protection | |
| CN201966617U (en) | Branch line voltage regulation device with controller using voltage as criterion and composite switches |
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 |