CN201687696U - Sleep function controller of variable-frequency control cabinet - Google Patents
Sleep function controller of variable-frequency control cabinet Download PDFInfo
- Publication number
- CN201687696U CN201687696U CN2010201414707U CN201020141470U CN201687696U CN 201687696 U CN201687696 U CN 201687696U CN 2010201414707 U CN2010201414707 U CN 2010201414707U CN 201020141470 U CN201020141470 U CN 201020141470U CN 201687696 U CN201687696 U CN 201687696U
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- CN
- China
- Prior art keywords
- controller
- frequency
- sleep
- sleep function
- control cabinet
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- 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.)
- Expired - Fee Related
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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
A sleep function controller of a variable-frequency control cabinet comprises a frequency changer. The controller is characterized by further comprising a pressure detecting element and a logic controller. The logic controller is respectively and electrically connected with the frequency changer and the pressure detecting element. The sleep function controller of a variable-frequency control cabinet has the advantages of simple design and arrangement, low cost and suitability for popularization and utilization.
Description
Technical field
The utility model relates to a kind of controller that is used for the VFC cabinet, more particularly, relates to a kind of Frequency Converter Control cabinet sleep function controller that is used for the Frequency Converter Control cabinet.
Background technique
Development along with society, frequency conversion water work, non-negative-pressure variable frequency water work more and more widely be applied to industry and the life among, because people's water demand all is interrupted usually, if the water pump in the water supply equipment keeps working state at any time, will cause electric energy to waste; And if water pump can start when people need water each time, when stopping water, people close, though reduced unnecessary energy consumption, the frequent starting of water pump can aggravate the loss of water pump, shortens the working life of water pump.In order to address the above problem, most in the market frequency conversion water works, non-negative-pressure variable frequency water work all require its control system to have sleep function, make water pump when people do not need to supply water, be in very low-frequency sleep state, avoid electric energy to waste, save the energy, when people need supply water, control system will be waken water pump up, carry out work, and do not need the repetition frequent starting.Because most frequency variators itself do not design sleep function, people are normally installed the sleep function that specific PLC realizes control system additional in the control cabinet of frequency conversion water work, but because PLC design more complicated disposes more, cost is higher, is difficult to be promoted the use of.
The model utility content
The purpose of this utility model is to provide a kind of design, configuration simply, Frequency Converter Control cabinet sleep function controller with low cost.
The purpose of this utility model realizes by following technological means: a kind of VFC cabinet sleep function controller, comprise frequency variator, it is characterized in that: described controller also comprises Pressure testing device and logic controller, and described logic controller is electrically connected with frequency variator and pressure detecting element respectively.
When after the frequency conversion water work starts, entering working state, frequency variator can carry out work with certain frequency, the height of described frequency and how many proportional relations of water consumption, when water consumption reduces, the operation frequency of frequency variator will reduce, when being reduced to pre-set sleep frequency, frequency variator will send a signal to logic controller, by logic controller described signal is carried out comprehensive calculation process, if this moment, system met the sleep condition, logic controller will be exported sleep signal and give control system, makes water pump enter sleep state by the control system action; When water consumption increases, the pressure of water transfer pipe network will descend, this moment, the Pressure testing device can detect ductwork pressure, when pressure is reduced to pre-setly when waking force value up, the Pressure testing device sends signal and gives logic controller, and logic controller is given control system through output wake-up signal after the calculation process, move by control system, wake water pump up, water pump is switched to working state, quicken operation.
Described Pressure testing device can be pressure gauge with electric contact.
Described Pressure testing device can also be pressure controller.
Usefulness of the present utility model is: simplicity of design, do not need additionally to increase the PLC device, only needing increases logic controller and pressure detecting element, and described logic controller and pressure detecting element all have standard fitting at present on market, and cost is cheap more many than PLC; And only need simple connection between frequency variator, pressure detecting element and the logic controller and the sleep function that can realize the Frequency Converter Control cabinet is set, with the scheme of using PLC to realize sleep function in operation and installation, be provided with relative simply, convenient, be fit to promote the use of.
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is described further.
Fig. 1 is the schematic representation of Frequency Converter Control cabinet sleep function controller
Specific embodiment as shown in Figure 1 comprises frequency variator 1, pressure gauge with electric contact 2 and logic controller 3, and described logic controller 3 is electrically connected with frequency variator 1 and pressure gauge with electric contact 2 respectively.
When after the frequency conversion water work starts, entering working state, frequency variator 1 can carry out work with certain frequency, when water consumption reduces, the operation frequency of frequency variator 1 can decrease, when described operation frequency is reduced to pre-set sleep frequency, frequency variator 1 will send a signal to logic controller 3, carry out comprehensive calculation process by 3 pairs of described signals of logic controller, if this moment, system met the sleep condition, logic controller 3 will be exported sleep signal and give control system, makes water pump enter sleep state by the control system action; When water consumption increases, the pressure of water transfer pipe network can descend along with the increase of water consumption, this moment, 2 meetings of Pressure testing device detected ductwork pressure, when pressure is reduced to pre-setly when waking force value up, Pressure testing device 2 sends signal and gives logic controller 3, and logic controller 3 is given control system through output wake-up signal after the calculation process, move by control system, wake water pump up, water pump is switched to working state, quicken operation.
More than be an example of the present utility model, and anyone might make change or change to design in not breaking away from protection domain of the present utility model, but these should be understood to still belong to protection domain of the present utility model.
Claims (3)
1. a VFC cabinet sleep function controller comprises frequency variator, and it is characterized in that: described controller also comprises Pressure testing device and logic controller, and described logic controller is electrically connected with frequency variator and Pressure testing device respectively.
2. VFC cabinet sleep controller according to claim 1, it is characterized in that: described Pressure testing device is a pressure gauge with electric contact.
3. VFC cabinet sleep controller according to claim 1, it is characterized in that: described Pressure testing device is a pressure controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201414707U CN201687696U (en) | 2010-03-23 | 2010-03-23 | Sleep function controller of variable-frequency control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201414707U CN201687696U (en) | 2010-03-23 | 2010-03-23 | Sleep function controller of variable-frequency control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687696U true CN201687696U (en) | 2010-12-29 |
Family
ID=43375979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201414707U Expired - Fee Related CN201687696U (en) | 2010-03-23 | 2010-03-23 | Sleep function controller of variable-frequency control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133699A (en) * | 2015-08-31 | 2015-12-09 | 深圳市英威腾电气股份有限公司 | Water supply pump frequency-variable control method and system |
| CN106546837A (en) * | 2016-09-21 | 2017-03-29 | 深圳市海浦蒙特科技有限公司 | Constant pressure water supply is without flow sleep detection method |
-
2010
- 2010-03-23 CN CN2010201414707U patent/CN201687696U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133699A (en) * | 2015-08-31 | 2015-12-09 | 深圳市英威腾电气股份有限公司 | Water supply pump frequency-variable control method and system |
| CN106546837A (en) * | 2016-09-21 | 2017-03-29 | 深圳市海浦蒙特科技有限公司 | Constant pressure water supply is without flow sleep detection method |
| CN106546837B (en) * | 2016-09-21 | 2019-02-05 | 深圳市海浦蒙特科技有限公司 | Constant pressure water supply is without flow sleep detection method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20190323 |