CN206727921U - It is a kind of can execute-in-place speed governing frequency converter automatic control system - Google Patents
It is a kind of can execute-in-place speed governing frequency converter automatic control system Download PDFInfo
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- CN206727921U CN206727921U CN201720497774.9U CN201720497774U CN206727921U CN 206727921 U CN206727921 U CN 206727921U CN 201720497774 U CN201720497774 U CN 201720497774U CN 206727921 U CN206727921 U CN 206727921U
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- frequency converter
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- breaker
- motor
- break contact
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Abstract
It is a kind of can execute-in-place speed governing frequency converter automatic control system, be related to the design field of motor automatic electric drive control system.The utility model includes major loop and control loop;The major loop includes three-phase breaker, potential regulator, frequency converter, electrothermal relay, motor;The control loop includes breaker, three selecting switch, hand switch knob, PLC automatic switch, KM contactor coils, KA contactor coils, operation display lamp.The utility model can execute-in-place, speed governing, can avoid by frequency converter installation influence its service efficiency, service life at the scene.
Description
Technical field
It the utility model is related to the design field of motor automatic electric drive control system.
Background technology
Frequency converter is to control the electric control appliance of ac motor by changing motor working power Frequency Patterns.
This present industrial production speed progressively accelerates, required in higher and higher society that the use of frequency converter is also more and more frequent, existing
The demand of field speed governing is also more and more.For the production environment that is relatively poor, floating dust is more, frequency converter is placed on existing
, the use function of frequency converter is not only have impact on, and the service life of frequency converter is substantially reduced, in this case, remotely
The mode of operation is just quite necessary.Automatically control and refer in the case where nobody directly participates in, utilize additional equipment
Or device, some working condition or parameter for making machine, equipment or production process are automatically run according to predetermined rule.Production
In activity, mechanical automatically controlling can reduce artificial use, reduce production cost, can also improve operating efficiency, increase
Output, increase income;Automated condtrol adapts to the social current of modern society's rapid development.Manufacturer to production activity from
The demand of dynamicization control is also increasingly fervent.
Utility model content
The utility model purpose is to be directed to problem above, there is provided one kind can execute-in-place, speed governing, can avoid frequency conversion
Device installation influence at the scene its service efficiency, service life problem can execute-in-place speed governing frequency converter automatic control system.
The utility model includes major loop and control loop;The major loop includes three-phase breaker, potential regulator, change
Frequency device, electrothermal relay, motor;The output end connection motor of the three-phase breaker;In the output end and motor of three-phase breaker
Between be sequentially connected in series frequency converter, electrothermal relay;The inverter input accesses 380V power supplys by three-phase breaker;The electricity
Position adjuster is serially connected in the given port of foreign frequency and the public port of analog input circuit of frequency converter;The electrothermal relay connects
It is connected on the output end of frequency converter;
The control loop includes breaker, three selecting switch, hand switch knob, PLC automatic switch, KM contactors
Coil, KA contactor coils, operation display lamp;Three selecting switch include the first make break contact, the second make break contact, the
Three make break contacts;The output end of first make break contact is sequentially connected in series hand switch knob and KM contactor coils;Described
The output end of two make break contacts is sequentially connected in series PLC automatic switch and operation display lamp;The output end string of 3rd make break contact
Connect KA contactor coils;Electrically connected between the output end of the hand switch knob and the output end of PLC automatic switch;PLC is certainly
Dynamic switch connects host computer and frequency converter by signal wire;The input of three selecting switch is connected with breaker;It is described
The input connection 220V power supplys of breaker;
The output end of the three-phase breaker is also associated with variable frequency motor fan;The three-phase breaker output end with
Fuse is set between variable frequency motor fan.
The utility model PLC automatically controls frequency converter drive motor start and stop after programming, by PLC, and
Speed-regulating function is realized, in motor operation course, PLC can monitor the working condition of frequency converter, when a failure occurs, PLC in real time
Being capable of output feedback signal, prompting fault message and motor out of service.The utility model can execute-in-place, speed governing, can keep away
Exempt from frequency converter installation influenceing its service efficiency, service life at the scene.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in figure 1, the utility model includes major loop and control loop;The major loop includes three-phase breaker 1, electricity
Position adjuster 2, frequency converter 3, electrothermal relay 4, motor 5;The output end connection motor 5 of the three-phase breaker 1;In three-phase break
Frequency converter 3, electrothermal relay 4 are sequentially connected in series between the output end and motor 5 of device 1;The input of frequency converter 3 passes through three-phase break
Device 1 accesses 380V power supplys;The foreign frequency that the potential regulator 2 is serially connected in frequency converter 3 gives port and analog input circuit
Public port;The electrothermal relay 4 is connected to the output end of frequency converter 3.
The control loop connects including breaker 6, three selecting switch 7, hand switch knob 8, PLC automatic switch 9, KM
Tentaculum coil 10, KA contactor coils 11, operation display lamp 12;Three selecting switch 7 include the first make break contact, second
Make break contact, the 3rd make break contact;The output end of first make break contact is sequentially connected in series hand switch knob 8 and KM contactors
Coil 10;The output end of second make break contact is sequentially connected in series PLC automatic switch 9 and operation display lamp 12;The threeway
The output end concatenation KA contactor coils 11 of disconnected contact;The output end of the hand switch knob 8 is defeated with PLC automatic switch 9
Go out between holding and electrically connect;PLC automatic switch 9 connects host computer 13 and frequency converter 3 by signal wire;Three selecting switch 7
Input be connected with breaker 6;The input connection 220V power supplys of the breaker 6.
The output end of the three-phase breaker 1 is also associated with variable frequency motor fan 14;In the output of the three-phase breaker 1
Fuse 15 is set between end and variable frequency motor fan 14.
Claims (1)
1. it is a kind of can execute-in-place speed governing frequency converter automatic control system, it is characterised in that:Including major loop and control loop;
The major loop includes three-phase breaker, potential regulator, frequency converter, electrothermal relay, motor;The output of the three-phase breaker
End connection motor;Frequency converter, electrothermal relay are sequentially connected in series between the output end of three-phase breaker and motor;The frequency converter is defeated
Enter end and 380V power supplys are accessed by three-phase breaker;The potential regulator be serially connected in frequency converter foreign frequency give port and
The public port of analog input circuit;The electrothermal relay is connected to the output end of frequency converter;
The control loop includes breaker, three selecting switch, hand switch knob, PLC automatic switch, KM contactor lines
Circle, KA contactor coils, operation display lamp;Three selecting switch include the first make break contact, the second make break contact, the 3rd
Make break contact;The output end of first make break contact is sequentially connected in series hand switch knob and KM contactor coils;Described second
The output end of make break contact is sequentially connected in series PLC automatic switch and operation display lamp;The output end concatenation of 3rd make break contact
KA contactor coils;Electrically connected between the output end of the hand switch knob and the output end of PLC automatic switch;The PLC
Automatic switch connects host computer and frequency converter by signal wire;The input of three selecting switch is connected with breaker;Institute
State the input connection 220V power supplys of breaker;
The output end of the three-phase breaker is also associated with variable frequency motor fan;Output end and frequency conversion in the three-phase breaker
Fuse is set between motor fan.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720497774.9U CN206727921U (en) | 2017-05-08 | 2017-05-08 | It is a kind of can execute-in-place speed governing frequency converter automatic control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720497774.9U CN206727921U (en) | 2017-05-08 | 2017-05-08 | It is a kind of can execute-in-place speed governing frequency converter automatic control system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206727921U true CN206727921U (en) | 2017-12-08 |
Family
ID=60510246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201720497774.9U Active CN206727921U (en) | 2017-05-08 | 2017-05-08 | It is a kind of can execute-in-place speed governing frequency converter automatic control system |
Country Status (1)
Country | Link |
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CN (1) | CN206727921U (en) |
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2017
- 2017-05-08 CN CN201720497774.9U patent/CN206727921U/en active Active
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210318 Address after: Room 5m06, 5th floor, building 17, 2555 xiupu Road, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Zhiying Robot Technology Co.,Ltd. Address before: 226600 Huanghai Avenue (West) 268, Haian County, Nantong City, Jiangsu Province Patentee before: JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIPMENT Co.,Ltd. |
|
TR01 | Transfer of patent right |