CN207263715U - Gas analyzer quantity of state output conversion device - Google Patents
Gas analyzer quantity of state output conversion device Download PDFInfo
- Publication number
- CN207263715U CN207263715U CN201721053510.0U CN201721053510U CN207263715U CN 207263715 U CN207263715 U CN 207263715U CN 201721053510 U CN201721053510 U CN 201721053510U CN 207263715 U CN207263715 U CN 207263715U
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- China
- Prior art keywords
- relay
- control loop
- signal triggering
- vcc
- state output
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Abstract
The utility model discloses gas analyzer quantity of state output conversion device, including the first relay, the second relay, the 3rd relay, the 4th relay, power cord VCC, ground wire GND, signal triggering end IN1, IN2, IN3 and IN4, the first controller input terminal is accessed in the normally open end of first relay, its base terminal is connected with IN1, and the first control loop of formation is connected with VCC；The normally open end of second relay connects the first solenoid valve, its base terminal is connected with IN2, and the second control loop of formation is connected with VCC；The normally open end connection second solenoid valve of 3rd relay, its base terminal are connected with IN3, and the 3rd control loop of formation is connected with VCC；The normally open end access second controller input terminal of 4th relay, its base terminal are connected with IN4, and the 3rd control loop of formation is connected with VCC；VCC linking parsing instrument positive poles, GND linking parsing instrument power cathodes.The high and low level state output of gas analyzer is converted into on-off model by the utility model, overcomes prior art defect.
Description
Technical field
The utility model belongs to gas analyzer technical field, and in particular to a kind of gas analyzer quantity of state output conversion
Device.
Background technology
The quantity of state output of some existing gas analyzers is exported using transistor, the output of generally use NPN transistor,
NPN type sensor has three lead-out wires：That is power cord VCC, ground wire GND and output line OUT.When no signal triggers
When, output line OUT is connected with ground wire GND, and low level is exported equivalent to output line OUT；When there is signal triggering, letter
Number output line OUT is connected with power cord VCC, and high level is exported equivalent to output line OUT.The output current of NPN transistor
It is required that being less than 50mA, in 50mA, the collecting terminal and transmitting terminal voltage of NPN transistor are about 1.2V.When the instrument of connection does not have
During current-limiting function, the instrument of connection may be damaged.It is logical, nothing all the time either to export high level or low level, circuit
Method come identification signal state, that is, is not used as conventional " on-off state " and is exported as control by " logical " or " disconnected ",
It is even more impossible to by this output, directly control intermediate relay and carry out the component actuations such as drive magnetic valve, brought not to control loop
Just.
Utility model content
The shortcomings that for the above-mentioned prior art or deficiency, the technical problem to be solved by the present invention is to provide one kind by gas
The high and low level state output of body analyzer is converted into the gas analyzer quantity of state output conversion device of on-off model.
In order to solve the above technical problems, the utility model has following form：
Gas analyzer quantity of state output conversion device, the conversion equipment include the first relay K1, the second relay
K2, the 3rd relay K3, the 4th relay K4, power cord VCC, ground wire GND, signal triggering end IN1, signal triggering end IN2, letter
The input of the first PLC controller is accessed in the normally open end of number triggering end IN3 and signal triggering end IN4, the first relay K1
End, its base terminal are connected with signal triggering end IN1, the first control loop of formation and the power cord VCC connections of external power supply；Institute
The normally open end for stating the second relay K2 connects the first solenoid valve YF1, its base terminal is connected with signal triggering end IN2, and the of formation
The power cord VCC connections of two control loops and external power supply；The normally open end connection second solenoid valve of the 3rd relay K3
YF2, its base terminal are connected with signal triggering end IN3, the 3rd control loop of formation and the power cord VCC connections of external power supply；
The input terminal of the second PLC controller is accessed in the normally open end of the 4th relay K4, its base terminal connects with signal triggering end IN4
Connect, the 3rd control loop of formation and the power cord VCC connections of external power supply；The power supply of the power cord VCC linking parsing instrument
Cathode, the power cathode of the ground wire GND linking parsing instrument, the analyzer are powered for the conversion equipment.
It is described to be used to control whether normal first control loop of the analyzer, control back for the second of balance check
Road, the 3rd control loop for range check and the 4th control loop for controlling whether to be in high range state is simultaneously
Join circuit.
The first relay K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 are 5V relays
Device.
The first relay K1, the second relay K2, the trigger current of the 3rd relay K3 and the 4th relay K4
It is 2-4mA.
The first relay K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 are touched by low level
Electricity pressure is 0-1.5V.
Compared with prior art, the utility model has the following technical effect that：
The utility model uses good relay, normally opened interface heavy load ability：Exchange 250V/10A, direct current 30V/
10A；The operating voltage of the utility model is 5V, is provided by analyzer state output terminal, without extra access；The utility model
5V relays are triggered by low level, trigger current is small, is only 2~4mA；The Interface design hommization of the utility model, Suo Youjie
Mouth can be drawn by the direct line of wire connection terminal, very convenient.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1：The utility model gas analyzer quantity of state output conversion device schematic diagram.
Embodiment
Make furtherly below with reference to the technique effect of design of the attached drawing to the utility model, concrete structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
As shown in Figure 1, the utility model gas analyzer quantity of state output conversion device, including the first relay K1,
Two relay K2, the 3rd relay K3, the 4th relay K4, power cord VCC, ground wire GND, signal triggering end IN1, signal triggering
Hold IN2, signal triggering end IN3 and signal triggering end IN4.The utility model uses good relay, and normally opened interface is negative greatly
Loading capability：Exchange 250V/10A, direct current 30V/10A.
The positive pole of the power cord VCC linking parsing instrument, the power cathode of the ground wire GND linking parsing instrument, institute
Analyzer is stated to power for the conversion equipment.The operating voltage of the utility model is 5V, is provided by analyzer state output terminal,
Without additionally accessing, the Interface design hommization of the utility model, total interface can be drawn by the direct line of wire connection terminal,
It is very convenient.
The input terminal of the first PLC controller is accessed in the normally open end of the first relay K1, its base terminal is triggered with signal
Hold IN1 connections, the first control loop of formation and the power cord VCC connections of external power supply；The second relay K2's is normally opened
The first solenoid valve YF1 of end connection, its base terminal are connected with signal triggering end IN2, the second control loop and external power supply of formation
Power cord VCC connections；The normally open end connection second solenoid valve YF2 of the 3rd relay K3, its base terminal are triggered with signal
Hold IN3 connections, the 3rd control loop of formation and the power cord VCC connections of external power supply；The 4th relay K4's is normally opened
Terminate the input terminal into the second PLC controller, its base terminal is connected with signal triggering end IN4, the 3rd control loop of formation with
The power cord VCC connections of external power supply.
First control loop, the second control loop, the 3rd control loop and the 4th control loop are parallel circuit.
Whether first control loop is used to control the analyzer normal, and the second control loop is used for balance check, the 3rd control
Circuit is used for range check, and the 4th control loop is used to control whether to be in high range state.
The first relay K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 are 5V relays
Device.The first relay K1, the second relay K2, the trigger current of the 3rd relay K3 and the 4th relay K4 are 2-
4mA.What the first relay K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 were triggered by low level
Voltage is 0-1.5V.
The utility model can use the low level current that analyzer NPN transistor exports, to trigger 5V relays, and then will
The low and high level output of NPN transistor, is converted into " logical " of 5V relays or " disconnected " output, so as to effectively overcome existing skill
In art can not by " logical " or " disconnected " come identification signal state, be namely not used as conventional on-off state be used as control it is defeated
Go out, it is even more impossible to directly control intermediate relay by this output come component actuations such as drive magnetic valves, so as to be controlled back
Road such as is made troubles at the technical barrier.
The utility model uses good relay, normally opened interface heavy load ability：Exchange 250V/10A, direct current 30V/
10A；The operating voltage of the utility model is 5V, is provided by analyzer state output terminal, without extra access；The utility model
5V relays are triggered by low level, trigger current is small, is only 2~4mA；The Interface design hommization of the utility model, Suo Youjie
Mouth can be drawn by the direct line of wire connection terminal, very convenient.
Above example is only to illustrate the technical solution of the utility model and non-limiting, reference only to preferred embodiment pair
The utility model is described in detail.It will be understood by those of ordinary skill in the art that can be to the technology of the utility model
Scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solutions of the utility model, should all cover in this reality
With in new right.
Claims (5)
1. gas analyzer quantity of state output conversion device, it is characterised in that
The conversion equipment includes the first relay K1, the second relay K2, the 3rd relay K3, the 4th relay K4, power supply
Line VCC, ground wire GND, signal triggering end IN1, signal triggering end IN2, signal triggering end IN3 and signal triggering end IN4,
The input terminal of the first PLC controller, its base terminal and signal triggering end IN1 are accessed in the normally open end of the first relay K1
Connection, the first control loop of formation and the power cord VCC connections of external power supply；
The normally open end of the second relay K2 connects the first solenoid valve YF1, its base terminal is connected with signal triggering end IN2, shape
Into the second control loop and external power supply power cord VCC connections；
The normally open end connection second solenoid valve YF2 of the 3rd relay K3, its base terminal are connected with signal triggering end IN3, shape
Into the 3rd control loop and external power supply power cord VCC connections；
The input terminal of the second PLC controller, its base terminal and signal triggering end IN4 are accessed in the normally open end of the 4th relay K4
Connection, the 3rd control loop of formation and the power cord VCC connections of external power supply；
The positive pole of the power cord VCC linking parsing instrument, the power cathode of the ground wire GND linking parsing instrument, described point
Analyzer is powered for the conversion equipment.
2. gas analyzer quantity of state output conversion device according to claim 1, it is characterised in that described to be used to control
Whether normal first control loop of the analyzer, the second control loop for balance check, for range check
Three control loops and the 4th control loop for controlling whether to be in high range state are parallel circuit.
3. gas analyzer quantity of state output conversion device according to claim 1, it is characterised in that first relay
Device K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 are 5V relays.
4. the gas analyzer quantity of state output conversion device according to claim 1 or 3, it is characterised in that described first
Relay K1, the second relay K2, the trigger current of the 3rd relay K3 and the 4th relay K4 are 2-4mA.
5. gas analyzer quantity of state output conversion device according to claim 4, it is characterised in that first relay
Device K1, the second relay K2, the 3rd relay K3 and the 4th relay K4 are 0-1.5V by the voltage that low level triggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721053510.0U CN207263715U (en) | 2017-08-22 | 2017-08-22 | Gas analyzer quantity of state output conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721053510.0U CN207263715U (en) | 2017-08-22 | 2017-08-22 | Gas analyzer quantity of state output conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207263715U true CN207263715U (en) | 2018-04-20 |
Family
ID=61925731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721053510.0U Expired - Fee Related CN207263715U (en) | 2017-08-22 | 2017-08-22 | Gas analyzer quantity of state output conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207263715U (en) |
-
2017
- 2017-08-22 CN CN201721053510.0U patent/CN207263715U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180420 |