CN202622471U - Controller for rotation speed of workpiece - Google Patents
Controller for rotation speed of workpiece Download PDFInfo
- Publication number
- CN202622471U CN202622471U CN 201220231810 CN201220231810U CN202622471U CN 202622471 U CN202622471 U CN 202622471U CN 201220231810 CN201220231810 CN 201220231810 CN 201220231810 U CN201220231810 U CN 201220231810U CN 202622471 U CN202622471 U CN 202622471U
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- CN
- China
- Prior art keywords
- frequency converter
- programmable logic
- logic controller
- controller
- workpiece
- 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.)
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Abstract
The utility model discloses a controller for the rotation speed of a workpiece, comprising a frequency converter, a scram button, a start button and a touch screen, which are respectively connected with a programmable logic controller by conducting wires, wherein an output end of the programmable logic controller is connected with an input end of the frequency converter, an intermediate relay is connected between an output end of the programmable logic controller and the frequency converter, the output end of the programmable logic controller is connected with an alarm lamp by the conducting wire, one output end of the frequency converter is connected with an input end of the programmable logic controller, and the other output end of the frequency converter is connected with an input end of a workpiece motor. The controller has the following benefit effects that the rotation speed of a workpiece is controlled according to rotation speed setting date on the touch screen, the controller is operated by an analog input function of the frequency converter and a communication function of a digital-to-analog conversion module on the programmable logic controller (PLC) and the touch screen, and the controller has advantages of being convenient, quick, time-saving, reliable, etc.
Description
Technical field:
The utility model relates to a kind of workpiece rotational frequency control device, is specially adapted to use on the bearing process equipment.
Background technology:
Workpiece frequency converter on the existing bearing process equipment is to be placed in the electric cabinet, need open electric cabinet when regulating workpiece rotational frequency, promptly be inconvenient to operate, and electric cabinet advances moisture again easily, also influences operating efficiency, of long duration also can cause electric elements to wear out and damage.
Summary of the invention:
The task of the utility model is to propose a kind of simple to operate, safe and reliable, direct a kind of workpiece rotational frequency control device of on touch-screen, controlling workpiece rotational frequency.The task of the utility model is to accomplish like this; It comprises frequency converter; It is characterized in that: scram button, start button, touch-screen are connected with programmable logic controller respectively through lead; Said programmable logic controller output links to each other with the frequency converter input, is connected with auxiliary reclay between the output of said programmable logic controller and the frequency converter, and the output of said programmable controller is connected with a warning lamp through lead; The output of said frequency converter is connected with the input of said programmable logic controller, and another output of said frequency converter links to each other with workpiece motor input.
Set the data of rotating speed on the said touch-screen,, setting data is write the D/A converter module of PLC through touch-screen and PLC communication; Convert digital quantity into analog quantity; Insert the analog input terminal of frequency converter, the frequency of frequency converter is set, reach the purpose of adjustment workpiece rotational frequency.When frequency converter takes place when unusual, the frequency converter output alarm signal feeds back to PLC, and the last output contact of PLC breaks off, and breaks off the input signal of frequency converter, and frequency converter stops output, the stall of workpiece motor, and last another root lead of drawing of PLC is connected with signal lamp.
Said touch-screen control workpiece rotational frequency through touch-screen and PLC communication, converts digital quantity into analog quantity, and the frequency of frequency converter is set.
The utlity model has following effect: the data of on touch-screen, setting rotating speed are controlled workpiece rotational frequency; Utilize the D/A converter module on frequency converter analog input function and the programmable logic controller (PLC); And the communication function of touch-screen combines and operates, have convenient, fast, save time, advantage such as reliable.
Description of drawings:
Fig. 1 is the circuit block diagram of the utility model.
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing; Scram button 1, start button 2, touch-screen 3 are connected with programmable logic controller 4 respectively through lead; Said programmable logic controller output links to each other with frequency converter 5 inputs; Be connected with auxiliary reclay 6 between the output of said programmable logic controller and the frequency converter; The output of said programmable controller is connected with a warning lamp 7 through lead, and the output of said frequency converter is connected with the input of said programmable logic controller 4, and another output of said frequency converter is connected with workpiece motor 8 inputs.
When frequency converter 5 just often, connect down start button, electric lead inputs to the input of programmable logic controller 4; (replacing with PLC) for easy narration programmable logic controller, the output point input signal on the PLC at this moment, the adhesive of PLC control output contact; By PLC output relay 6, closed by the normally opened contact on the relay input acknowledge(ment) signal relay, input to the operation terminal on the frequency converter by lead; Frequency converter is received the enabling signal output voltage that brings into operation; By output output control workpiece motor rotation, the height of motor rotation speed, the voltage that is flowed to frequency conversion by PLC determines.In the time will changing workpiece rotational frequency, with (rotating speed size 0-50HZ can establish), the communication cable between touch-screen and the PLC detects data variation at the enterprising line parameter of touch-screen; The digital quantity that the last data conversion module handle of PLC detects is converted into the corresponding simulating amount, exports to the frequency setting terminal on the frequency converter through output; Change the input voltage of frequency converter, thereby changed the output frequency of frequency converter, make the workpiece rotating speed of motor obtain adjustment; When frequency converter had fault, the warning lead-out terminal of frequency converter was closed, has lead to input to the input point conducting of PLC, PLC; The programme-control output point breaks off, and frequency converter operation input is broken off, and frequency converter stops output; The workpiece motor shuts down, and warning lamp continues flicker simultaneously, and prompting has fault to take place.During fortuitous event, press scram button and " break off the PLC power supply ", stop all outputs.
Claims (1)
1. workpiece rotational frequency control device; It comprises frequency converter; It is characterized in that: scram button, start button, touch-screen are connected with programmable logic controller respectively through lead; Said programmable logic controller output links to each other with the frequency converter input, is connected with auxiliary reclay between the output of said programmable logic controller and the frequency converter, and the output of said programmable controller is connected with a warning lamp through lead; The output of said frequency converter is connected with the input of said programmable logic controller, and another output of said frequency converter links to each other with workpiece motor input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231810 CN202622471U (en) | 2012-05-23 | 2012-05-23 | Controller for rotation speed of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231810 CN202622471U (en) | 2012-05-23 | 2012-05-23 | Controller for rotation speed of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622471U true CN202622471U (en) | 2012-12-26 |
Family
ID=47375714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231810 Expired - Fee Related CN202622471U (en) | 2012-05-23 | 2012-05-23 | Controller for rotation speed of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182913A (en) * | 2015-09-23 | 2015-12-23 | 浙江金玛机床有限公司 | Numerical control machine tool control system and control method |
| CN110456726A (en) * | 2019-07-30 | 2019-11-15 | 深圳市云林电气技术有限公司 | A kind of Interface Expanding method of programmable logic controller (PLC) and frequency converter |
-
2012
- 2012-05-23 CN CN 201220231810 patent/CN202622471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182913A (en) * | 2015-09-23 | 2015-12-23 | 浙江金玛机床有限公司 | Numerical control machine tool control system and control method |
| CN110456726A (en) * | 2019-07-30 | 2019-11-15 | 深圳市云林电气技术有限公司 | A kind of Interface Expanding method of programmable logic controller (PLC) and frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |