CN201611771U - Communication isolated protection device - Google Patents
Communication isolated protection device Download PDFInfo
- Publication number
- CN201611771U CN201611771U CN201029012014XU CN201029012014U CN201611771U CN 201611771 U CN201611771 U CN 201611771U CN 201029012014X U CN201029012014X U CN 201029012014XU CN 201029012014 U CN201029012014 U CN 201029012014U CN 201611771 U CN201611771 U CN 201611771U
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- CN
- China
- Prior art keywords
- module
- frequency converter
- isolated
- touch screen
- repeater
- 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.)
- Expired - Fee Related
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
A communication isolated protection device belongs to the industry control technical field and comprises a frequency converter module and a touch screen module, characterized in that, a photoelectric isolated module is electrically connected between the frequency converter module and the touch screen module; the photoelectric isolated module is an optical isolated repeater. Adopting the optical isolated repeater, the utility model disconnects the interference of the water supply viewfinder software caused by the frequency converter, the parameters such as voltage value and current value can be displayed stably in the viewfinder, meanwhile, the circuit is simple and the reconstruction cost is low.
Description
Technical field
The utility model belongs to the industrial control technology field, the communication isolating and protecting device in particularly a kind of supply equipment.
Background technology
Existing non-negative pressure water-supply installation has field of employment widely, the control cubicle of most supply equipments has all adopted the water supply windowing software, man-machine interface formula mode of operation, with the operating state of on-the-spot each pump, all can come out in the corresponding screen displayed of form as real-time pressure, frequency conversion frequency, various faults demonstration, modification operational factor etc.Man-machine interface formula mode of operation makes literal, numeral and figure organically cooperate, both enriched the content of system, increase the operability and the integrality of system again, be beneficial to simpler, directly perceived, the correct grasp system running state of operating personnel, improved the reliability of system greatly.
In the control cubicle of supply equipment frequency converter being housed, is to keep constant pressure water supply by the output frequency that PID (proportional-integral-differential) controller is adjusted frequency converter.Because the existence of frequency converter can produce signal to the water supply windowing software and disturb, and make water supply windowing software jitter, represented magnitude of voltage in the form, parameter instabilities such as current value have influenced normal use.
The utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of communication isolating and protecting device, makes water supply windowing software signal more stable, eliminates the interference of frequency converter to the water supply windowing software.
The technical scheme that its technical problem that solves the utility model adopts is: this kind communication isolating and protecting device, comprise frequency converter module and touch screen module, and it is characterized in that, between frequency converter module and touch screen module, also be electrically connected photoelectric isolation module.
Described photoelectric isolation module is that light is every repeater.
The beneficial effects of the utility model are: make and use up behind repeater, disconnected the interference of frequency converter module to the water supply windowing software, show parameters such as stable magnitude of voltage, current value in the form; Circuit is very simple simultaneously, and improvement cost is extremely low.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Embodiment
As Fig. 1, this kind communication isolating and protecting device comprises frequency converter module and touch screen module, also is electrically connected photoelectric isolation module between frequency converter module and touch screen module, and described photoelectric isolation module is that light is every repeater.
This light is that zero propagation light is every repeater (connecter type is RS-485) every repeater.This light is electrically connected the multi-functional lead-out terminal (RA, RB) of frequency converter module every the input port (D0+, D0-) of repeater.The default feature of the multi-functional lead-out terminal of this frequency converter module provides fault-signal for the frequency converter module, uses show state and cut off the electricity supply and carry out the protection of machine when the frequency converter module goes wrong for the supervisory controller in the frequency converter module.Light is electrically connected the communication port (COM1) of touch screen module every repeater output port (D1+, D1-), thereby realizes the photoelectricity insulation blocking between frequency converter module and the touch screen module.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (2)
1. a communication isolating and protecting device comprises frequency converter module and touch screen module, it is characterized in that, also is electrically connected photoelectric isolation module between frequency converter module and touch screen module.
2. communication isolating and protecting device according to claim 1 is characterized in that, described photoelectric isolation module is that light is every repeater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201029012014XU CN201611771U (en) | 2010-02-05 | 2010-02-05 | Communication isolated protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201029012014XU CN201611771U (en) | 2010-02-05 | 2010-02-05 | Communication isolated protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611771U true CN201611771U (en) | 2010-10-20 |
Family
ID=42962406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201029012014XU Expired - Fee Related CN201611771U (en) | 2010-02-05 | 2010-02-05 | Communication isolated protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611771U (en) |
-
2010
- 2010-02-05 CN CN201029012014XU patent/CN201611771U/en not_active Expired - Fee Related
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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: 20101020 Termination date: 20150205 |
|
| EXPY | Termination of patent right or utility model |