CN102338238A - Control system of reliable type electric actuator - Google Patents
Control system of reliable type electric actuator Download PDFInfo
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- CN102338238A CN102338238A CN2011102360686A CN201110236068A CN102338238A CN 102338238 A CN102338238 A CN 102338238A CN 2011102360686 A CN2011102360686 A CN 2011102360686A CN 201110236068 A CN201110236068 A CN 201110236068A CN 102338238 A CN102338238 A CN 102338238A
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Abstract
The invention discloses a control system of a reliable type electric actuator. The control system comprises a main control unit, a bus card and an FSC (fire control system) which are successively connected, wherein a motor driven device, a knob plate, a torque transducer, a valve location absolute encoder and a display screen are connected with the main control unit, and the motor driven device is mutually connected with a power supply and a motor; the knob plate is provided with an operation knob and a manner knob, and the bus card is provided with a first data processing unit and a first communication interface which are mutually connected; the control system is characterized by comprising a redundance card arranged between the main control unit and the FSC, wherein the redundance card is provided with a second data processing unit and a third communication interface which are mutually connected; and the third data processing unit is mutually connected with the first data processing unit. The control system provided by the invention has the advantage of high reliability.
Description
Technical field
The present invention relates to a kind of YE, relate in particular to a kind of control system of reliable type YE.
Background technique
YE is called electric actuator again.It is a kind of drive unit that utilizes certain driving source and straight line is provided under certain control signal effect or rotatablely moves; The energy is taken conveniently because it has, signaling rate is fast, long transmission distance, be convenient to central controlled advantage; Be usually used in supporting various valve and constitute electric valve or electric control valve; The present existing YE that is used for supporting valve; Usually the control system that adopts only has a bus card, so The whole control system just can't normally be moved when this bus card breaks down, therefore the existing final controlling element control system of this kind exists lower defective of reliability and problem.
Summary of the invention
Technical problem to be solved by this invention provides the control system of the higher reliable type YE of a kind of reliability.
For solving the problems of the technologies described above; The present invention provides a kind of control system of reliable type YE; Comprise the main control unit, bus card and the FCS control system that connect successively; Also be connected with motor drive unit, knob plate, torque sensor, valve position absolute encoder and display screen on the said main control unit, said motor drive unit is connected with power supply, motor, and said knob plate is provided with operation knob and mode knob; Said bus card is provided with interconnective first data processing unit and first communication interface; Said control system also comprises the redundant card that is arranged between said main control unit and the said FCS control system, and said redundant card is provided with interconnective second data processing unit and third communication interface, and said the 3rd data processing unit is connected with said first data processing unit.
Said motor drive unit is connected with said main control unit through driving isolator.
Said operation knob is connected with said knob plate through the secondary signal isolator with said mode knob.
Said motor is provided with temperature transducer, and said temperature transducer also is connected with said main control unit.
Said first data processing unit is connected with said first communication interface through first signal isolator.
Said second data processing unit is connected with said second communication interface through the 3rd signal isolator.
Said bus card is the profibus bus card.
Said bus card is the Modbus bus card.
Said bus card is the Devicenet bus card.
Compared with prior art, beneficial effect of the present invention is:
Because the control system of a kind of reliable type YE of the present invention not only includes bus card; Also comprise redundant card, this redundant card is connected with the FCS control system with main control unit respectively, and this redundant card is provided with interconnective second data processing unit and second communication interface; Second data processing unit is connected with first data processing unit; Thereby make bus card not only can intercom mutually with redundant card, to such an extent as to all right independent communication is when going up fault for one in bus card and the redundant card; Another can work on; Thereby guaranteed that control system can continual normal operation, this pair card is provided with the effective reliability that improves control system, so reliability of the present invention is higher.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: main control unit 10, motor drive unit 12, display screen 14, knob plate 16, power supply 18; Motor 20, operation knob 22, mode knob 23, torque sensor 24, bus card 26; Redundant card 27, FCS control system 28, the first data processing units 30, the first communication interfaces 32 drive isolator 34; First signal isolator 40, secondary signal isolator 36, the three signal isolators 42, the second data processing units 41, second communication interface 43.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details
Control system referring to a kind of reliable type intelligent electric final controlling element shown in Figure 1; Comprise the main control unit 10, bus card 26 and the FCS control system 28 that connect successively; Wherein also be connected with motor drive unit 12, torque sensor 24, valve position absolute encoder 38, temperature transducer 25, display screen 14 and knob plate 16 on the main control unit 10; Preferred main control unit 10 is connected with the motor drive unit 12 that is used for drive motor 20 work through driving isolator 34; This motor drive unit 12 is connected with motor 20 with power supply 18; Knob plate 16 is provided with operation knob 22 and mode knob 23; Bus card 26 is provided with and interconnective the input data is carried out first data processing unit 30 and first communication interface 32 of analysing and processing, be provided with first signal isolator 40 between this first data processing unit 30 and first communication interface 32, thereby this first signal isolator 40 can effective isolation undesired signal assurance control system move accurately; Specialization of the present invention is: in control system, also be provided with redundant card 27; Main control unit 10 is connected with FCS control system 28 through redundant card 27, and redundant card 27 is provided with and interconnectively carries out second data processing unit 41 and the second communication interface 43 of analysing and processing to importing data, is provided with the 3rd signal isolator 42 between this second data processing unit 41 and the second communication interface 43; Second data processing unit 41 is connected with first data processing unit 30; This structural design makes bus card 26 not only can intercom mutually with redundant card 27, can also independently bear the communication between main control unit 10 and the FCS control system 28, to such an extent as to when going up fault for one in bus card 26 and the redundant card 27; Another can work on, thereby has guaranteed that control system can continual normal operation.This design has also reduced system's external cabling in addition, also makes debugging, maintenance simpler simultaneously.
Motor drive unit 12 is connected with main control unit 10 through driving isolator 34; First data processing unit 30 is connected with first communication interface 32 through first signal isolator 40; Connect through the 3rd signal isolator 42 between second data processing unit 41 and the second communication interface 43; Operation knob 22 is connected with knob plate 16 through secondary signal isolator 36 with mode knob 23; Being provided with of this driving isolator 34, first signal isolator 40, secondary signal isolator 36 and the 3rd signal isolator 42 can the effective isolation undesired signal, makes control system more stable, thus make system's control more accurately, reliable.
In addition, bus card 26 can be selected any in profibus bus card, Modbus bus card or the Devicenet bus card for use according to actual user demand.
The bus card 26 among the design and the setting of redundant card 27 have not only realized the intelligent digital control of YE, and the transmission of control signal adopts digital signal to transmit, and utilizes digital signal to have stronger antijamming capability; Make the transmission more stable of The whole control system signal; Control more accurately, also reduced the circuit of control system, make system wiring oversimplify; Thereby make system debug also be easier to; Even realized that a card breaks down because two cards of bus card 26 and redundant card 27 are provided with in addition, another piece card can continue operation, has guaranteed the normal operation of control system.Therefore, effectively raise the reliability of control system.
In sum, reliability of the present invention is higher.
The above is merely preferred embodiments of the present invention; Protection scope of the present invention is not exceeded with above-mentioned mode of execution; As long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (9)
1. the control system of a reliable type YE; Comprise the main control unit, bus card and the FCS control system that connect successively; Also be connected with motor drive unit, knob plate, torque sensor, valve position absolute encoder and display screen on the said main control unit; Said motor drive unit is connected with power supply, motor; Said knob plate is provided with operation knob and mode knob, and said bus card is provided with interconnective first data processing unit and first communication interface, it is characterized in that: said control system also comprises the redundant card that is arranged between said main control unit and the said FCS control system; Said redundant card is provided with interconnective second data processing unit and third communication interface, and said the 3rd data processing unit is connected with said first data processing unit.
2. the control system of a kind of reliable type intelligent electric final controlling element according to claim 1 is characterized in that: said motor drive unit is connected with said main control unit through driving isolator.
3. the control system of a kind of reliable type intelligent electric final controlling element according to claim 2 is characterized in that: said operation knob is connected with said knob plate through the secondary signal isolator with said mode knob.
4. the control system of a kind of reliable type intelligent electric final controlling element according to claim 3 is characterized in that: said motor is provided with temperature transducer, and said temperature transducer also is connected with said main control unit.
5. the control system of a kind of reliable type intelligent electric final controlling element according to claim 4 is characterized in that: said first data processing unit is connected with said first communication interface through first signal isolator.
6. the control system of a kind of reliable type intelligent electric final controlling element according to claim 5 is characterized in that: said second data processing unit is connected with said second communication interface through the 3rd signal isolator.
7. according to the control system of each described a kind of reliable type intelligent electric final controlling element in the claim 1 to 6, it is characterized in that: said bus card is the profibus bus card.
8. according to the control system of each described a kind of reliable type intelligent electric final controlling element in the claim 1 to 6, it is characterized in that: said bus card is the Modbus bus card.
9. according to the control system of each described a kind of reliable type intelligent electric final controlling element in the claim 1 to 6, it is characterized in that: said bus card is the Devicenet bus card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102360686A CN102338238A (en) | 2011-08-17 | 2011-08-17 | Control system of reliable type electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102360686A CN102338238A (en) | 2011-08-17 | 2011-08-17 | Control system of reliable type electric actuator |
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| CN102338238A true CN102338238A (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102360686A Pending CN102338238A (en) | 2011-08-17 | 2011-08-17 | Control system of reliable type electric actuator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078508Y (en) * | 2007-07-20 | 2008-06-25 | 孙力 | Frequency conversion type intelligent valve electrically operated mechanism |
| US20080249641A1 (en) * | 2006-09-29 | 2008-10-09 | Fisher-Rosemount Systems, Inc. | Automatic Configuration of Synchronous Block Execution for Control Modules Run in Fieldbus Networks |
| CN201884760U (en) * | 2010-12-30 | 2011-06-29 | 上海源致信息技术有限公司 | Intelligent valve drive control system |
| CN202274170U (en) * | 2011-08-17 | 2012-06-13 | 苏州博睿测控设备有限公司 | Control system of reliable type electric performer |
-
2011
- 2011-08-17 CN CN2011102360686A patent/CN102338238A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080249641A1 (en) * | 2006-09-29 | 2008-10-09 | Fisher-Rosemount Systems, Inc. | Automatic Configuration of Synchronous Block Execution for Control Modules Run in Fieldbus Networks |
| CN201078508Y (en) * | 2007-07-20 | 2008-06-25 | 孙力 | Frequency conversion type intelligent valve electrically operated mechanism |
| CN201884760U (en) * | 2010-12-30 | 2011-06-29 | 上海源致信息技术有限公司 | Intelligent valve drive control system |
| CN202274170U (en) * | 2011-08-17 | 2012-06-13 | 苏州博睿测控设备有限公司 | Control system of reliable type electric performer |
Non-Patent Citations (2)
| Title |
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| 汪涵: "现场数据总线CAN网络的一种物理冗余技术", 《中国西部科技（学术）》 * |
| 白焰等: "《分散控制系统与现场总线控制系统：基础、评选、设计和应用》", 31 March 2001, 中国电力出版社 * |
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Application publication date: 20120201 |