CN204215216U - A kind of load module isolator - Google Patents
A kind of load module isolator Download PDFInfo
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- CN204215216U CN204215216U CN201420572234.9U CN201420572234U CN204215216U CN 204215216 U CN204215216 U CN 204215216U CN 201420572234 U CN201420572234 U CN 201420572234U CN 204215216 U CN204215216 U CN 204215216U
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- isolator
- disconnecting relay
- relay coil
- tie point
- disconnecting
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Abstract
The utility model relates to a kind of load module isolator, described isolator comprises disconnecting relay coil (5), by the disconnecting relay auxiliary switch (4) that disconnecting relay coil (5) controls, one end of described main isolator is provided with terminal block tie point (1), the other end is provided with external switch tie point (2), described disconnecting relay coil (5) and disconnecting relay auxiliary switch (4) all connecting power lines (3).The beneficial effects of the utility model are as follows: 1) this technical scheme proposes modular project organization, and installation and the wiring work of the isolator made become simple; 2) the isolator power supply in this technical scheme can separate with original PLC digital quantity input module power supply, realizes Secure isolation; 3) relay in isolator can be selected often to open or normally closed auxiliary contact as required, is convenient to the improvement of automation control system; 4) this technical scheme arranges flexibly, can be configured isolator as required.
Description
Technical field
The utility model relates to a kind of isolator, especially relates to a kind of isolator of PLC digital quantity input module, belongs to electric field.
Background technology
Logic programmable controller (being called for short PLC) is a large amount of for industrial control field, and digital quantity input module is a kind of critical function module of PLC, for receiving external switch amount signal.Because industrial environment is severe, there is ground connection at outside switching circuit, different electric pressure circuit is being when getting lines crossed, the damage of the digital quantity input module be directly connected with external switch can be caused.Disconnecting relay to be installed additional to existing equipment when PLC device does not adopt load module disconnecting relay, material can be run into and prepare numerous and diverse, that installation process is comparatively slow and Subsequent maintenance is inconvenient problem, be unfavorable for the daily servicing to control system equipment, and isolator of the prior art mostly complex structure, cost is higher, be not easy to apply on a large scale, therefore, above-mentioned technical matters is solved in the urgent need to a kind of new technical scheme.
Summary of the invention
The utility model, just for the technical matters existed in prior art, provides a kind of isolator of PLC digital quantity input module, and this device overall construction design is ingenious, easy to operate, realizes the quick isolation features of PLC digital quantity input module.
To achieve these goals, the technical solution adopted in the utility model is, a kind of load module isolator, it is characterized in that, described isolator comprises disconnecting relay coil, and by the disconnecting relay auxiliary switch that disconnecting relay coil controls, one end of isolator is provided with terminal block tie point, the other end is provided with external switch tie point, described disconnecting relay coil and the equal connecting power line of disconnecting relay auxiliary switch.
A kind of PLC digital quantity input module isolator, it is characterized in that, comprise main isolator and from isolator, described main isolator comprises disconnecting relay coil, by the disconnecting relay auxiliary switch that disconnecting relay coil controls, one end of described main isolator is provided with terminal block tie point, and the other end is provided with external switch tie point, described main isolator is also provided with power cord point and power contact, and the bottom of isolator is also provided with rear connection draw-in groove and power lead.
Improve as one of the present utility model, describedly comprise disconnecting relay coil from isolator, by the disconnecting relay auxiliary switch that disconnecting relay coil controls, described one end from isolator is provided with terminal block tie point, the other end is provided with external switch tie point, describedly be provided with power cord point from the upper and lower both sides of isolator, the described bottom from isolator is also provided with rear connection draw-in groove and power lead, the described top from isolator is provided with front attachment plug, and described front attachment plug connects in draw-in groove after inserting another isolator.
Relative to prior art, the beneficial effects of the utility model are as follows: 1) this technical scheme proposes modular project organization, and installation and the wiring work of the isolator made become simple; 2) the isolator power supply in this technical scheme can separate with original PLC digital quantity input module power supply, realizes Secure isolation; 3) relay in isolator can be selected often to open or normally closed auxiliary contact as required, is convenient to the improvement of automation control system; 4) this technical scheme arranges flexibly, can be configured isolator as required; 5) spacer structures described in whole technical scheme is simple, cost is lower, is convenient to large-scale popularization.
Accompanying drawing explanation
Fig. 1 isolator work in combination electrical schematic diagram;
Fig. 2 isolator electrical schematic diagram;
The main spacer structures schematic diagram of Fig. 3;
Fig. 4 is from spacer structures schematic diagram;
The spacer structures schematic diagram of the whole PLC digital quantity input module of Fig. 5;
The application schematic diagram of Fig. 6 isolator in digital quantity input module;
Wherein: 1-terminal block tie point; 2-external switch tie point; 3-power lead; 4-disconnecting relay auxiliary switch; 5-disconnecting relay coil; 6-power cord point; 7-power contact; Draw-in groove is connected, attachment plug before 9-after 8-.
Embodiment
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
embodiment 1:see Fig. 2, a kind of load module isolator, described isolator comprises disconnecting relay coil 5, by the disconnecting relay auxiliary switch 4 that disconnecting relay coil 5 controls, one end of isolator is provided with terminal block tie point 1, the other end is provided with external switch tie point 2, described disconnecting relay coil 5 and disconnecting relay auxiliary switch 4 all connecting power lines 3.Fig. 1 is isolator work in combination electrical schematic diagram, wherein live wire L is connected with digital quantity input module common port, zero line N is linked into external switch through terminal block, the zero line N drawn from terminal block is connected with one end of each external switch as the public zero curve of external switch, the other end of external switch connects relay coil, the other end of relay coil connects power firestreak L1, auxiliary relay auxiliary contact two pin one end connect N1, the other end is connected to terminal block, carries out corresponding connection respectively with each input point of digital quantity input module.
embodiment 2:see Fig. 3, a kind of isolator of PLC digital quantity input module, comprise main isolator and from isolator, described main isolator comprises disconnecting relay coil 5, by the disconnecting relay auxiliary switch 4 that disconnecting relay coil 5 controls, one end of described main isolator is provided with terminal block tie point 1, and the other end is provided with external switch tie point 2, described main isolator is also provided with power cord point 6 and power contact 7, the bottom of described isolator is also provided with rear connection draw-in groove 8 and power lead 3.Shown isolator is used for being connected with external power source, is not with front attachment plug, but is connected for carrying out installation with other isolators with rear connection draw-in groove 8.
embodiment 3:see Fig. 4, improve as one of the present utility model, describedly comprise disconnecting relay coil 5 from isolator, by the disconnecting relay auxiliary switch 4 that disconnecting relay coil 5 controls, described one end from isolator is provided with terminal block tie point 1, the other end is provided with external switch tie point 2, describedly be provided with power cord point 7 from the upper and lower both sides of isolator, the described bottom from isolator is also provided with rear connection draw-in groove 8 and power lead 3, the described top from isolator is provided with front attachment plug 9, described front attachment plug 9 connects in draw-in groove 8 after inserting another isolator.Connect in draw-in groove 8 after its front attachment plug 9 can insert the isolator shown in Fig. 3 or same model and guarantee the quick and firm of installation, the firm installation of isolator ensure that a close contact for isolator side power contact 7, achieves the electrical connection between each isolator.
See Fig. 1-Fig. 4, disconnecting relay on isolator comprises a coil 5 and one pair of auxiliary switch 4, be arranged on isolator base by pin, base power source line contact 6 is for connecting L1 and N1 of electric power incoming line 3, power supply L1 with N1 is identical with N electric pressure with original power supply L, but can not same external switch be shared, to realize Secure isolation.Power contact 7 is for providing electrical connection for follow-up isolator, on base, outside switch junctions 2 is connected with a pin of disconnecting relay coil 5, the another pin of coil 5 is connected with the L1 of power lead 3, terminal block tie point 1 is connected with the pin of disconnecting relay auxiliary contact 4, the another pin of disconnecting relay auxiliary contact 4 is connected with the N1 of power lead 3, front attachment plug 9 connects in draw-in groove 8 after can insert another isolator
See Fig. 5, Fig. 6, when installing isolator, the isolator power source line contact 6 shown in Fig. 3 is for being connected with L1 with N1 of external power source 3, and terminal block tie point 1 is for accessing former terminal block, and external switch tie point 2 is connected with external switch one end.When needing to continue the external switch to common zero line N installs isolator additional, at this moment shown in employing Fig. 4 from isolator, its front attachment plug 9 is inserted in the rear connection draw-in groove 8 of the isolator that last is installed, at this moment the power lead 3 of two isolators will be electrically connected by power contact 7, and terminal block tie point 1 is the same with the connected mode of external switch tie point 2.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or the alternative scope all falling into the utility model claim and protect.
Claims (3)
1. a load module isolator, it is characterized in that, described isolator comprises disconnecting relay coil (5), by the disconnecting relay auxiliary switch (4) that disconnecting relay coil (5) controls, one end of described isolator is provided with terminal block tie point (1), the other end is provided with external switch tie point (2), described disconnecting relay coil (5) and disconnecting relay auxiliary switch (4) all connecting power lines (3).
2. a PLC digital quantity input module isolator, it is characterized in that, comprise main isolator and from isolator, described main isolator comprises disconnecting relay coil (5), by the disconnecting relay auxiliary switch (4) that disconnecting relay coil (5) controls, one end of described main isolator is provided with terminal block tie point (1), the other end is provided with external switch tie point (2), described main isolator is also provided with power cord point (6) and power contact (7), the bottom of isolator is also provided with rear connection draw-in groove (8) and power lead (3).
3. PLC digital quantity input module isolator according to claim 2, it is characterized in that, describedly comprise disconnecting relay coil (5) from isolator, by the disconnecting relay auxiliary switch (4) that disconnecting relay coil (5) controls, described one end from isolator is provided with terminal block tie point (1), the other end is provided with external switch tie point (2), describedly be provided with power cord point (7) from the upper and lower both sides of isolator, the described bottom from isolator is also provided with rear connection draw-in groove (8) and power lead (3), the described top from isolator is provided with front attachment plug (9), described front attachment plug (9) connects in draw-in groove (8) after inserting another isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420572234.9U CN204215216U (en) | 2014-09-30 | 2014-09-30 | A kind of load module isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420572234.9U CN204215216U (en) | 2014-09-30 | 2014-09-30 | A kind of load module isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215216U true CN204215216U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420572234.9U Active CN204215216U (en) | 2014-09-30 | 2014-09-30 | A kind of load module isolator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204215216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865853A (en) * | 2016-05-16 | 2016-08-17 | 威海捷诺曼自动化科技有限公司 | Online analysis system of ship exhaust emission |
| CN107068487A (en) * | 2017-04-11 | 2017-08-18 | 刘禹辰 | It is a kind of that the method that dry contact signal circuit induced voltage influences is eliminated by relay |
-
2014
- 2014-09-30 CN CN201420572234.9U patent/CN204215216U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865853A (en) * | 2016-05-16 | 2016-08-17 | 威海捷诺曼自动化科技有限公司 | Online analysis system of ship exhaust emission |
| CN107068487A (en) * | 2017-04-11 | 2017-08-18 | 刘禹辰 | It is a kind of that the method that dry contact signal circuit induced voltage influences is eliminated by relay |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |