CN201846293U - Group control system for a plurality of variable frequency control motors - Google Patents
Group control system for a plurality of variable frequency control motors Download PDFInfo
- Publication number
- CN201846293U CN201846293U CN2010205199057U CN201020519905U CN201846293U CN 201846293 U CN201846293 U CN 201846293U CN 2010205199057 U CN2010205199057 U CN 2010205199057U CN 201020519905 U CN201020519905 U CN 201020519905U CN 201846293 U CN201846293 U CN 201846293U
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- frequency converter
- control
- control system
- profibus
- motors
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Abstract
The utility model provides a group control system for a plurality of variable frequency control motors, which is characterized by comprising a frequency converter, a manual controller, and a programmable logic controller (PLC); the frequency converter is used for controlling the operation of the motors; the manual controller is connected with the frequency converter and is used for controlling the start and the stop of the frequency converter; the output port of the PLC is connected with the input port of a PROFIBUS DP communication template; and the output port of the PROFIBUS DP communication template is connected with the frequency converter and is used for automatically controlling the start, the stop and operation at variable speed of the motors. The group control system for a plurality of variable frequency control motors can automatically control a plurality of groups of motor when being unattended, and is flexible and reliable to control; and the control method of the group control system can be widely applied to the production and the life, so that energy consumption can be greatly saved and practical value is achieved.
Description
Technical field
The utility model relates to Motor Control Field, particularly the Frequency Converter Control machine field in the electric power system.
Background technology
Along with applying of frequency converter, increasing Electric Machine Control occasion has adopted PLC control system (Programmable logic Controller, programmable logic controller (PLC)) and frequency converter cooperate multiple electric motors controlled, what this patent was realized is by PLC control system and motor operation external signal frequency converter to be carried out Combination Control at many variable frequency control motors.
Common inverter control signal is divided into run signal (being main story and counter-rotating) and rate signal, the start and stop of the direct control of conversion device of run signal.A lot of occasions need realize to the frequency converter operation manually and two automatically cover control models, but these two kinds of patterns are mutually independently, can not be used in combination, and are automatic modes or are manual mode.If dual mode will be combined, can increase bigger cost, the motor of control is many more, and it is big more that cost increases.Mainly be to insert the PLC control system to outside run signal, thereby increased a lot of modules.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, a kind of branch set control system to many variable frequency control motors is provided, realize manually organically combining with automatic two kinds of control modes, realization is to the flexible control of frequency converter, and need not increase any cost, realize the purpose of economic flexible control.
The technical solution of the utility model: a kind of branch set control system to many variable frequency control motors of the present utility model comprises:
One frequency converter, it is used to control the operation of motor;
One hand controller, it is used for the startup of control of conversion device and out of service, and this hand controller is connected with frequency converter; And
One PLC controller, it is used for controlling automatically the start and stop and the variable-speed operation of described motor, and the input port of the delivery outlet of this PLC controller and a PROFIBUS DP (Decentralized Periphery, distributed ancillary equipment) communication template connects;
Described PROFIBUS DP communication template, its data that are used between PLC controller and the frequency converter transmit, and the delivery outlet of this PROFIBUS DP communication template is connected with described frequency converter;
Wherein, the signal of the signal of described hand controller and described PLC controller carries out the logic Boolean AND operation by the BICO function of frequency converter, thereby realizes control purpose flexibly.
Preferably, above-mentioned hand controller further comprises:
One control switch, it is used to control the startup of described frequency converter and out of service, and an end of this control switch is connected with the DIN1 of described frequency converter end, the other end and described frequency converter+the 24V power end is connected; And
One indicator light, it is used to show the connected state of described control switch, and an end of this indicator light is connected with the NO of described frequency converter end, and the other end is connected with described control switch.
Preferably, this branch set control system to many variable frequency control motors also comprises:
One contactor, it is used to protect frequently being switched on or switched off of three-phase alternating current source circuit, and an end of this contactor is connected with three-phase alternating-current supply, and the other end is connected with a circuit breaker;
Above-mentioned circuit breaker, it is used to protect overload, short circuit and the under voltage of three-phase alternating-current supply, and the other end of this circuit breaker is connected with a filter;
Above-mentioned filter, it is used for filtering out the harmonic signal of three-phase alternating current, and the other end of this filter is connected with frequency converter; And
One motor is connected with frequency converter.
Preferably, the PLC controller adopts the cosmos connected mode to be connected with frequency converter by the DP connection.
Preferably, the compound mode of filter, circuit breaker and contactor and three-phase alternating-current supply is used for providing AC power to frequency converter.
Preferably, being provided with mainly of converter parameter comprised:
Select command signal source parameter P0700, its parameter values is set to 2, promptly inserts signal by the terminal on the terminal board, is used to define frequency converter and receives set point by this terminal or power on/power off command;
Select duty setting signal source P1000, its parameter values is set to 6, is used for fast control signal;
The function P0701 of numeral input 1, its parameter values is set to 1;
The ON/OFF 1 order P0840 of forward operation, its parameter values is set to r2811;
Enable free functional block P2800, its parameter values is set to 1;
Activate free functional block P2801.0, its parameter values is set to 1;
With first input P2810.0 of door 1 (AND1), its parameter values is set to 722.0; And
With second input P2810.1 of door 1 (AND1), its parameter values is set to r2090.0.
The beneficial effects of the utility model: this system can be applicable to a lot of industrial circles, can realize how group motor unattended operations are controlled automatically, and the control flexibility and reliability; The control mode of this system can be widely used in the productive life, can save energy resource consumption greatly, has practical value.
Description of drawings
Fig. 1 is an overall construction drawing of the present utility model.
Description of reference numerals: 1-hand controller; The 11-control switch; The 12-indicator light; The 2-PLC controller; The 3-frequency converter; The 4-PROFIBUS DP template of communicating by letter; The 5-motor; The 6-filter; The 7-circuit breaker; The 8-contactor; The 9-three-phase alternating-current supply.
Embodiment
For feature and advantage of the present utility model can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also Fig. 1, a kind of branch set control system to many variable frequency control motors of the present utility model comprises:
One frequency converter 3, it is used to control the operation of motor 5;
One hand controller 1, it is used for the startup of control of conversion device 3 and out of service, and this hand controller 1 is connected with frequency converter 3; And
One PLC controller 2, it is used for controlling automatically the start and stop and the variable-speed operation of described motor 5, and the communicate by letter input port of template 4 of the delivery outlet of this PLC controller 2 and a PROFIBUS DP is connected;
Described PROFIBUS DP communication template 4, its data that are used between PLC controller 2 and the frequency converter 3 transmit, and the delivery outlet of this PROFIBUS DP communication template 4 is connected with described frequency converter 3;
Wherein, the signal of the signal of described hand controller 1 and described PLC controller 2 carries out the logic Boolean AND operation by the BICO function of frequency converter 3, thereby realizes the purpose of control flexibly.
Preferably, above-mentioned hand controller 1 further comprises:
One control switch 11, it is used to control the startup of described frequency converter 3 and out of service, and an end of this control switch 11 is connected with the DIN1 of described frequency converter 3 end, the other end and described frequency converter 3+the 24V power end is connected; And
One indicator light 12, it is used to show the connected state of described control switch 11, and an end of this indicator light 12 is connected with the NO of described frequency converter 3 end, and the other end is connected with described control switch 11.
Preferably, this branch set control system to many variable frequency control motors also comprises:
One contactor 8, it is used to protect frequently being switched on or switched off of three-phase alternating current source circuit, and an end of this contactor 8 is connected with three-phase alternating-current supply 9, and the other end is connected with a circuit breaker 7;
Above-mentioned circuit breaker 7, it is used to protect overload, short circuit and the under voltage of three-phase alternating-current supply 9, and the other end of this circuit breaker 7 is connected with a filter 6;
Above-mentioned filter 6, it is used for filtering out the harmonic signal of three-phase alternating-current supply 9, and the other end of this filter 6 is connected with frequency converter 3; And
One motor 5 is connected with frequency converter 3.
Preferably, PLC controller 2 adopts the cosmos connected mode to be connected with frequency converter 3 by the DP connection.
Preferably, filter 6, circuit breaker 7 and contactor 8 are used for providing AC power to frequency converter with the compound mode of three-phase alternating-current supply 9.
Preferably, being provided with mainly of frequency converter 3 parameters comprised:
Select command signal source parameter P0700, its parameter values is set to 2, promptly inserts signal by the terminal on the terminal board, is used to define frequency converter 3 and receives set point by this terminal or power on/power off command;
Select duty setting signal source P1000, its parameter values is set to 6, is used for fast control signal;
The function P0701 of numeral input 1, its parameter values is set to 1;
The ON/OFF1 order P0840 of forward operation, its parameter values is set to r2811;
Enable free functional block P2800, its parameter values is set to 1;
Activate free functional block P2801.0, its parameter values is set to 1;
With first input P2810.0 of door 1 (AND1), its parameter values is set to 722.0; And
With second input P2810.1 of door 1 (AND1), its parameter values is set to r2090.0.
During the utility model operation, at first each frequency converter 3 is connected a motor 5 (motor 5 does not under any circumstance allow long-time stall), DIN1 end with each frequency converter 3 is connected with control switch 11 then, the other end of this control switch 11 and frequency converter 3+the 24V power end is connected, again the input port of the delivery outlet of PLC controller 2 and first frequency converter is connected by the PROFIBUS DP template 4 of communicating by letter, the input port of the delivery outlet of first frequency converter and second frequency converter is connected by the PROFIBUS DP template 4 of communicating by letter, the rest may be inferred, can connect many frequency converters.
During work, at first set the parameter of each frequency converter 3, and be set to 1 by the start bit of the control word of PLC controller 2 each frequency converter 3, can make rate signal continue to provide, this moment, frequency converter 3 still was in wait state; When connecting control switch 11, frequency converter 3 is promptly started working, and the control switch 11 of this moment has played the effect of manual control, start and stop that can control of conversion device 3; If will realize automatic operation, must make control switch 11 be in on-state always, can pass through PLC controller 2 control of conversion devices 3 this moment as required, thus the start and stop of control motor 5 and variable-speed operation etc.
During operate as normal, multiple electric motors 5 moves simultaneously by the control of hand controller 1 with PLC controller 2, when needs part motor 5 quits work, can control motor 5 separate unit short period periodic duty successively flexibly by the program of PLC controller 2, and can adjust the speed of service of motor 5, thereby realize multiple electric motors 5 groupings, intermittently and low cruise; Saved the energy consumption of producing greatly.When needs overhaul, can realize the normal operation that stops to control and can not having influence on other motors to separate unit frequency converter 3 and motor 5 making maintenance work convenient by control switch 11.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also comprises these changes and modification interior.
Claims (4)
1. the branch set control system to many variable frequency control motors is characterized in that, comprising:
One frequency converter, it is used to control the operation of motor;
One hand controller, it is used to control the startup of described frequency converter and stop, and this hand controller is connected with described frequency converter; And
One PLC controller, it is used for controlling automatically the start and stop and the variable-speed operation of described motor, and the communicate by letter input port of template of the delivery outlet of this PLC controller and a PROFIBUS DP is connected;
Described PROFIBUS DP communication template, its data that are used between PLC controller and the frequency converter transmit, and the delivery outlet of this PROFIBUS DP communication template is connected with described frequency converter.
2. the branch set control system to many variable frequency control motors according to claim 1 is characterized in that described hand controller further comprises:
One control switch, it is used to control the startup of described frequency converter and out of service, and an end of this control switch is connected with the DIN1 of described frequency converter end, the other end and described frequency converter+the 24V power end is connected; And
One indicator light, it is used to show the connected state of described control switch, and an end of this indicator light is connected with the NO of described frequency converter end, and the other end is connected with described control switch.
3. the branch set control system to many variable frequency control motors according to claim 1 is characterized in that, also comprises:
One contactor, it is used to protect frequently being switched on or switched off of three-phase alternating current source circuit, and an end of this contactor is connected with three-phase alternating-current supply, and the other end is connected with a circuit breaker;
Described circuit breaker, it is used to protect overload, short circuit and the under voltage of described three-phase alternating-current supply, and the other end of this circuit breaker is connected with a filter;
Described filter, it is used for filtering out the harmonic signal of described three-phase alternating current, and the other end of this filter is connected with described frequency converter; And
One motor is connected with described frequency converter.
4. the branch set control system to many variable frequency control motors according to claim 1 is characterized in that described PLC controller is connected by the DP connection with described frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205199057U CN201846293U (en) | 2010-09-03 | 2010-09-03 | Group control system for a plurality of variable frequency control motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205199057U CN201846293U (en) | 2010-09-03 | 2010-09-03 | Group control system for a plurality of variable frequency control motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846293U true CN201846293U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205199057U Expired - Lifetime CN201846293U (en) | 2010-09-03 | 2010-09-03 | Group control system for a plurality of variable frequency control motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223903A (en) * | 2016-08-25 | 2016-12-14 | 西安宝德自动化股份有限公司 | Electric submersible pump oil pumping system order opens machine control method |
| CN106972787A (en) * | 2017-04-01 | 2017-07-21 | 长兴创睿机电有限公司 | A kind of double helix frequency conversion tank |
-
2010
- 2010-09-03 CN CN2010205199057U patent/CN201846293U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223903A (en) * | 2016-08-25 | 2016-12-14 | 西安宝德自动化股份有限公司 | Electric submersible pump oil pumping system order opens machine control method |
| CN106972787A (en) * | 2017-04-01 | 2017-07-21 | 长兴创睿机电有限公司 | A kind of double helix frequency conversion tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |