CN201422090Y - Soft starter with PROFIBUS-DP communication function - Google Patents
Soft starter with PROFIBUS-DP communication function Download PDFInfo
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- CN201422090Y CN201422090Y CN2009201029552U CN200920102955U CN201422090Y CN 201422090 Y CN201422090 Y CN 201422090Y CN 2009201029552 U CN2009201029552 U CN 2009201029552U CN 200920102955 U CN200920102955 U CN 200920102955U CN 201422090 Y CN201422090 Y CN 201422090Y
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Abstract
The utility model discloses a soft starter with the PROFIBUS-DP communication function, which belongs to the technical field of starters and aims to solve the problem in providing a soft starter capable of realize PROFIBUS-DP communication. The utility model adopts the technical scheme that an isolation reversing switch, a controllable silicon component, a second vacuum contactor, and a three-phase alternating current motor interface are connected in series in sequence from top to bottom, wherein, two ends of the controllable silicon component are connected in parallel with the first vacuum contactor, a power supply transformer is connected between the isolation reversing switch and the controllable silicon component through a conducing wire, the output end of the power supply transformeris connected with a controller and a PLC through a conducting wire, the output end of a pulse trigger device is connected with the controllable silicon component, the input end of the pulse trigger device is connected with the controller, the controller is further connected with a display and the PLC, the PLC is connected with an operation box and a remote control panel, and the PLC is further connected with a PROFIBUS-DP communication module. The utility model can be widely applied in such industries as power, metallurgy, energy and the like.
Description
Technical field
The utility model discloses a kind of soft starter of the PROFIBUS-DP of having communication function, belong to the starter technical field.
Background technology
The main conveying equipment rubber conveyer of each mine of coal industry, drag conveyor nearly all exist heavily loaded hard-to-start, serious dynamic load to impact and problem such as large-current electric net impact in starting process, and they are to influence equipment normally to move, increase equipment fault, increase standby redundancy and material consumption, influence Homes Using TV, influence the work work efficiency, influence the key issue of mine economic benefit and safety in production.Soft starter then well solves these problems.The control of early stage soft starter mainly is by auto-transformer starting, star-like---the triangular form starting, and these start modes are comparatively simple, and starting effect is relatively poor.The present popular supply power voltage of regulating motor by central processing unit and controllable silicon, with starting and the braking procedure that improves induction motor, make motor smooth start and braking, reduce the impact of motor starting, reduce in the starting process infringement simultaneously machinery and electric equipment to electrical network.Yet along with increasing of mine automaticity, PROFIBUS industrial monitoring network has efficiently been set up in increasing colliery, requirement can be in the real-time status and the data of ground monitoring motor and control appliance thereof, even requirement can be on ground control in the face of various device, thereby realizes the production of mine automation, unmanned, safe.Therefore, press for the soft starter of a kind of PROFIBUS-DP of having communication function of development.
The utility model content
The deficiency that the utility model exists at prior art, problem to be solved provides a kind of soft starter that can realize the PROFIBUS-DP communication.
For solving above-mentioned technical scheme, the technical solution adopted in the utility model is: the soft starter with PROFIBUS-DP communication function, comprise the isolation reversing switch, power transformer, first vacuum contactor, silicon controlled component, second vacuum contactor, current sensing means, pulse triggering means, controller, PLC and three phase alternating current motor interface, its structure is: isolate reversing switch, silicon controlled component, second vacuum contactor, the three phase alternating current motor interface is series connection successively from top to bottom, the two ends of silicon controlled component first vacuum contactor in parallel, between isolation reversing switch and silicon controlled component, be connected with power transformer by lead, the output of power transformer is connected with controller and PLC by lead, the output of pulse triggering means links to each other with silicon controlled component, the input of pulse triggering means links to each other with controller, controller also is connected with display and PLC, PLC is connected with operating case and Long-distance Control panel, and PLC also links to each other with PROFIBUS-DP communication module.
Be provided with current sensing means and earth leakage protective device between above-mentioned second vacuum contactor and the three phase alternating current motor interface, the other end of current sensing means links to each other with controller, also the linking to each other with the earth with PLC respectively of earth leakage protective device.
Silicon controlled component is on the circuit of three pairs of anti-parallel thyristors three phase supply of being series at motor, thyristor overvoltage protection device all in parallel in each thyristor.
The structure of above-mentioned thyristor overvoltage protection device is: piezo-resistance also is connected in the two ends of thyristor, and the two ends of piezo-resistance are parallel with rc absorber.
The soft starter that the utlity model has PROFIBUS-DP communication function is compared with existing soft starter has following beneficial effect:
1, self-testing load, automaticity height: current sensing means is connected the three phase alternating current motor interface by three groups of D.C mutual-inductors, and link to each other with controller by lead, by the electric current in three outlets of current sensing means detection, if when surpassing the current value that configures, disconnect second vacuum contactor immediately, cut off the power supply to three-phase alternating-current motor and protect motor; It is that the single-chip microcomputer of STC89C52, Siemens's Programmable Logic Controller and the operating case that the PLC model is CPU224 are operated automatically, controlled overall process that control section of the present utility model adopts the controller model.
2, working method variation, occupation mode variation: because circuit of the present utility model adopts the three phase mains input interface to be connected with silicon controlled component with the isolation reversing switch successively by three groups of leads, silicon controlled component is connected on the three phase alternating current motor interface by second vacuum contactor, the two ends of silicon controlled component first vacuum contactor in parallel can be realized two kinds of start modes: soft start, hard start.The course of work of soft start is: closed vacuum contactor, disconnect vacuum contactor in the bypass, treat that three-phase alternating-current motor enters specified running after, closed first vacuum contactor; The course of work of hard start is: closed first vacuum contactor and second vacuum contactor, three-phase alternating-current motor enters specified running and gets final product.Owing on PLC, be connected with the Long-distance Control panel, be provided with the Long-distance Control input in the Long-distance Control panel, can realize the control of separate unit three-phase alternating-current motor like this, also can realize many threephase asynchronous Long-distance Control.
3, PROFIBUS-DP communication:, can be connected to the PROFIBUS-DP network by PROFIBUS-DP communication module and carry out network service because the utility model is connected with PROFIBUS-DP communication module on PLC.PROFIBUS-DP communication module both can be sent to state, parameter and the fault message of this soft starter the control station of PROFIBUS-DP network, and the command information that also can accept control station is started, stopped and operation such as leak(age) test.Control station can carry out communication simultaneously with many soft starters, and discerns by the network site of each soft starter communication module, and the site of every soft starter all is unique, can set between 0 to 99.
4, safe and reliable, operate steadily: in the utility model, interact, have earth leakage search/lockout protection, overload, overcurrent protection, rotation-clogging protection and overvoltage protection by hardware and software; Earth leakage search/lockout protection and rotation-clogging protection function realize by earth leakage protective device and PLC; Overload, overcurrent protection function are realized by current sensing means and controller; Overvoltage protection realizes that by the piezo-resistance and the rc absorber that are connected in parallel on the thyristor two ends kinds of protect function makes starting process safe and reliable, operates steadily.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is further described in detail:
Fig. 1 is the circuit connection diagram with soft starter of PROFIBUS-DP communication function;
Fig. 2 is the structural representation of silicon controlled component 204;
Fig. 3 is that the utility model is in PROFIBUS-DP network communication connection diagram.
1 is the three phase mains input interface among the figure; 2 is soft starter; 3 is three-phase alternating-current motor; 4 is thyristor; 5 is the thyristor overvoltage protection device; 6 is control station; 51 is piezo-resistance; 52 is rc absorber; 201 for isolating reversing switch; 202 is power transformer; 203 is first vacuum contactor; 204 is silicon controlled component; 206 is second vacuum contactor; 207 is current sensing means; 208 is pulse triggering means; 209 is controller; 210 is display; 211 is PLC; 212 is earth leakage protective device; 213 is operating case; 214 is the Long-distance Control panel; 215 is the three phase alternating current motor interface; 216 is PROFIBUS-DP communication module.
Embodiment
Fig. 1 is the circuit connection diagram with soft starter of PROFIBUS-DP communication function, among the figure, soft starter 2 comprises isolates reversing switch 201, power transformer 202, first vacuum contactor 203, silicon controlled component 204, second vacuum contactor 206, current sensing means 207, pulse triggering means 208, controller 209, PLC211 and three phase alternating current motor interface 215, its structure is: isolate reversing switch 201, silicon controlled component 204, second vacuum contactor 206, three phase alternating current motor interface 215 is series connection successively from top to bottom, the two ends of silicon controlled component 204 first vacuum contactor 203 in parallel, between isolation reversing switch 201 and silicon controlled component 204, be connected with power transformer 202 by lead, the output of power transformer 202 is connected with controller 209 and PLC211 by lead, the output of pulse triggering means 208 links to each other with silicon controlled component 204, the input of pulse triggering means 208 links to each other with controller 209, controller 209 also is connected with display 210 and PLC211, PLC211 is connected with operating case 213 and Long-distance Control panel 214, and operating case 213 is provided with starting button, stop button, reset button and leak(age) test button.Long-distance Control panel 214 is provided with chain higher level's button, remote button, chain load button and startup subordinate button.PLC211 also links to each other with PROFIBUS-DP communication module 216.Be provided with current sensing means 207 and earth leakage protective device 212 between second vacuum contactor 206 and the three phase alternating current motor interface 215, the other end of current sensing means 207 links to each other with controller 209, also the linking to each other with the earth with PLC211 respectively of earth leakage protective device 212.
The isolation reversing switch 201 of the utility model soft starter 2 connects three phase mains input interface 1, and three phase alternating current motor interface 215 connects three-phase alternating-current motor 3.
Fig. 2 is the structural representation of silicon controlled component 204; The three pairs of anti-parallel thyristors 41 are series on the circuit of three phase supply of motor among the figure, and bidirectional triode thyristor has the characteristic of two-way conducting in turn, shutoff.Thyristor overvoltage protection device 5 all in parallel in each thyristor 4.The structural principle of thyristor overvoltage protection device 5 is piezo-resistance 51 and the two ends that are connected in thyristor 4; piezo-resistance 51 punctures when overvoltage; the front end sky is opened or insured action; the two ends of piezo-resistance 51 are parallel with rc absorber 52, and the key property parameter d v/dt that thyristor 4 has is when thyristor turn-offs; if the anode voltage rate of climb is too fast; can make the charging current in the thyristor big more, cause gate pole not having to mislead promptly normal say open-minded firmly under the situation of triggering signal.Therefore in order to ensure the thyristor safe operation, the thyristor two ends of being everlasting RC capacitance-resistance in parallel absorbs network, and the characteristic of utilizing the electric capacity both end voltage not suddenly change is come the deboost climbing.
In conjunction with Fig. 1 and Fig. 2, soft starter 2 can realize that two kinds of start modes are soft start, hard start.The course of work of soft start is: closed second vacuum contactor 206, disconnect first vacuum contactor 203 in the bypass, electric current is by the silicon controlled component 204 and second vacuum contactor 206, the starting three-phase alternating-current motor, after treating that three-phase alternating-current motor enters specified running, closed first vacuum contactor 203.The course of work of hard start is: closed first vacuum contactor 203 and second vacuum contactor 206 enter specified running up to three-phase alternating-current motor and get final product.
Owing on PLC211, be connected with Long-distance Control panel 214, be provided with the Long-distance Control input in the Long-distance Control panel 214, can realize the Long-distance Control of separate unit three-phase alternating-current motor like this, also can realize many threephase asynchronous Long-distance Control in parallel.
Current sensing means 207 connects the three phase alternating current motor interface by three groups of D.C mutual-inductors; and link to each other with controller 209 by lead; by the electric current in three outlets of current sensing means 207 detections; if when surpassing the current value that configures; disconnect second vacuum contactor 206 immediately, cut off the power supply to three-phase alternating-current motor and protect motor.In addition, interact by hardware and software in the utility model, have earth leakage search/lockout protection, overload, overcurrent protection, rotation-clogging protection and overvoltage protection: earth leakage search/lockout protection and rotation-clogging protection function realize by earth leakage protective device 212 and PLC211; Overload, overcurrent protection function are realized by current sensing means 207 and controller 209; Overvoltage protection realizes that by the piezo-resistance 51 and the rc absorber 52 that are connected in parallel on thyristor 4 two ends the kinds of protect function makes starting process safe and reliable, operates steadily.
The model of above-mentioned controller 209 is STC89C52, the PLC211 model is Siemens Programmable Logic Controller CPU224, the model of above-mentioned silicon controlled component 204 is 1250A/4200V, and the model of piezo-resistance 51 is MYS2200/10, and the model of rc absorber 52 is 250A/1140V.
Fig. 3 is that the utility model is in PROFIBUS-DP network communication connection diagram, because the utility model is connected with PROFIBUS-DP communication module 216 on PLC211, can be connected to the PROFIBUS-DP network by PROFIBUS-DP communication module 216 and carry out network service.PROFIBUS-DP communication module 216 both can pass the state of this soft starter 2, parameter and fault message the control station 6 toward the PROFIBUS-DP network, and the command information that also can accept control station is started, stopped and operation such as leak(age) test.Control station 6 can carry out communication simultaneously with many soft starters 2, and discerns by the network site of each soft starter 2 communication module, and the site of every soft starter 2 all is unique, can set between 0 to 99.The model of PROFIBUS-DP communication module 216 is the PROFIBUS-DP slave station module EM277 of Siemens.
Claims (4)
1, soft starter with PROFIBUS-DP communication function, comprise and isolate reversing switch (201), power transformer (202), first vacuum contactor (203), silicon controlled component (204), second vacuum contactor (206), current sensing means (207), pulse triggering means (208), controller (209), PLC (211) and three phase alternating current motor interface (215), its structure is: isolate reversing switch (201), silicon controlled component (204), second vacuum contactor (206), three phase alternating current motor interface (215) is series connection successively from top to bottom, the two ends of silicon controlled component (204) first vacuum contactor (203) in parallel, between isolation reversing switch (201) and silicon controlled component (204), be connected with power transformer (202) by lead, the output of power transformer (202) is connected with controller (209) and PLC (211) by lead, the output of pulse triggering means (208) links to each other with silicon controlled component (204), the input of pulse triggering means (208) links to each other with controller (209), controller (209) also is connected with display (210) and PLC (211), PLC (211) is connected with operating case (213) and Long-distance Control panel (214), it is characterized in that: PLC (211) also links to each other with PROFIBUS-DP communication module (216).
2, the soft starter with PROFIBUS-DP communication function according to claim 1; it is characterized in that: be provided with current sensing means (207) and earth leakage protective device (212) between second vacuum contactor (206) and the three phase alternating current motor interface (215); the other end of current sensing means (207) links to each other with controller (209), also the linking to each other with the earth with PLC (211) respectively of earth leakage protective device (212).
3, the soft starter with PROFIBUS-DP communication function according to claim 1 and 2; it is characterized in that: silicon controlled component (204) is on the circuit of three pairs of anti-parallel thyristors (4) three phase supply of being series at motor, a thyristor overvoltage protection device (5) all in parallel in each thyristor (4).
4, the soft starter with PROFIBUS-DP communication function according to claim 3; it is characterized in that: the structure of thyristor overvoltage protection device (5) is: piezo-resistance (51) also is connected in the two ends of thyristor (4), and the two ends end of piezo-resistance (51) is parallel with rc absorber (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029552U CN201422090Y (en) | 2009-05-26 | 2009-05-26 | Soft starter with PROFIBUS-DP communication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029552U CN201422090Y (en) | 2009-05-26 | 2009-05-26 | Soft starter with PROFIBUS-DP communication function |
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| Publication Number | Publication Date |
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| CN201422090Y true CN201422090Y (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201029552U Expired - Lifetime CN201422090Y (en) | 2009-05-26 | 2009-05-26 | Soft starter with PROFIBUS-DP communication function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393665A (en) * | 2011-11-22 | 2012-03-28 | 北京华电天仁电力控制技术有限公司 | Profibus filed bus type electric actuating mechanism controller |
| CN103605316A (en) * | 2013-11-20 | 2014-02-26 | 桂林机床电器有限公司 | Electrical switch |
| CN104660107A (en) * | 2013-11-21 | 2015-05-27 | 河南省济源市矿用电器有限责任公司 | Mining flame-proof and intrinsically safe double-contactor low-voltage alternating-current soft starter |
| CN105162363A (en) * | 2015-09-24 | 2015-12-16 | 芜湖龙峰电器电子有限公司 | Energy-saving motor switching controller and soft start method for energy-saving motor |
| CN105940583A (en) * | 2013-12-16 | 2016-09-14 | 伍德沃德有限公司 | Integrated soft start and safety shutdown |
-
2009
- 2009-05-26 CN CN2009201029552U patent/CN201422090Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393665A (en) * | 2011-11-22 | 2012-03-28 | 北京华电天仁电力控制技术有限公司 | Profibus filed bus type electric actuating mechanism controller |
| CN102393665B (en) * | 2011-11-22 | 2013-07-24 | 北京华电天仁电力控制技术有限公司 | Profibus filed bus type electric actuating mechanism controller |
| CN103605316A (en) * | 2013-11-20 | 2014-02-26 | 桂林机床电器有限公司 | Electrical switch |
| CN104660107A (en) * | 2013-11-21 | 2015-05-27 | 河南省济源市矿用电器有限责任公司 | Mining flame-proof and intrinsically safe double-contactor low-voltage alternating-current soft starter |
| CN105940583A (en) * | 2013-12-16 | 2016-09-14 | 伍德沃德有限公司 | Integrated soft start and safety shutdown |
| US10135367B2 (en) | 2013-12-16 | 2018-11-20 | Woodward, Inc. | Integrated soft start and safety shutdown |
| CN105940583B (en) * | 2013-12-16 | 2019-08-20 | 伍德沃德有限公司 | Integrated soft start and safety shutdown |
| CN105162363A (en) * | 2015-09-24 | 2015-12-16 | 芜湖龙峰电器电子有限公司 | Energy-saving motor switching controller and soft start method for energy-saving motor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Gao Xin Document name: Patent certificate of utility model |
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| CX01 | Expiry of patent term |
Granted publication date: 20100310 |
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| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Taiyuan Huite Technology Co.,Ltd. Document name: Notification of Expiration of Patent Right Duration |
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| DD01 | Delivery of document by public notice |