CN209586649U - A kind of power distribution station PLC control pumping water device - Google Patents
A kind of power distribution station PLC control pumping water device Download PDFInfo
- Publication number
- CN209586649U CN209586649U CN201920205826.XU CN201920205826U CN209586649U CN 209586649 U CN209586649 U CN 209586649U CN 201920205826 U CN201920205826 U CN 201920205826U CN 209586649 U CN209586649 U CN 209586649U
- Authority
- CN
- China
- Prior art keywords
- relay
- circuit
- triode
- plc
- emitting diode
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of power distribution station PLC to control pumping water device, including major loop, secondary circuit, signal processing circuit, water level sensor and PLC control circuit, major loop is connect with secondary circuit, water level sensor includes light emitting diode, light emitting diode connection signal processing circuit, the input interface of the output end connection PLC control circuit of signal processing circuit, the output interface of PLC control circuit are connect with secondary circuit；The advantages of the utility model has simple and practical, facilitates operation, and water can be automatically drained out the ponding below switchgear house in pond when full, and when deficient water can be automatically stopped water pump.
Description
Technical field
The utility model relates to electricity fields, are more particularly to a kind of power distribution station PLC control pumping water device.
Background technique
Pond below the switchgear house of machine maintenance center, in order to which the ponding in pond is timely and effectively discharged, when tank water is full
When need to manually start water pump carry out draining.If manually forgetting, water pumping will cause switchgear house and be flooded, and cause great electromechanical thing
Therefore.So needing to design a kind of automatic pumping water device, the water in pond is discharged, prevent switchgear house from being flooded.
Utility model content
The technical problem to be solved by the utility model is to tank drains below the switchgear house of the prior art to need manually
Start water pump, if the problem of manually forgetting to pump, switchgear house is be easy to cause to be flooded.
The utility model is to solve above-mentioned technical problem by the following technical programs: a kind of power distribution station PLC control water pumping
Device, including major loop, secondary circuit, signal processing circuit, water level sensor and PLC control circuit, the major loop with
The secondary circuit connection, the water level sensor includes light emitting diode, and the light emitting diode connects the signal processing
Circuit, the output end of the signal processing circuit connect the input interface of the PLC control circuit, the PLC control circuit
Output interface is connect with the secondary circuit.
Preferably, the major loop includes electrothermal relay FR, A.C. contactor KM1 and is spaced apart with earth leakage protective three-phase
3P, the A.C. contactor KM1 include main contact KM11 and coil KM12, the main contact KM11 of the A.C. contactor KM1
Normally opened, tri- terminals of A, B, C that the earth leakage protective three-phase of band is spaced apart 3P connect the main touching of the A.C. contactor KM1 respectively
End of incoming cables L1, L2, L3 of head KM11, leading-out terminal T1, T2, T3 of the main contact KM11 of the A.C. contactor KM1 pass through respectively
Electrothermal relay FR and the three-phase power line of the water pump P are separately connected.
Preferably, the secondary circuit includes fuse FU, the coil KM12 of A.C. contactor KM1, electrothermal relay FR
Normally-closed contact FR1, switch S1, switch S2 and relay KM2, the relay KM2 include normally opened contact KM21 and coil
One end of the normally opened contact KM21 of one end and relay KM2 of KM22, the fuse FU is coupled with AC power source AC1's
The other end at both ends, the normally opened contact KM21 of the relay KM2 sequentially passes through the normally-closed contact of switch S1, electrothermal relay FR
The coil KM12 of FR1 and A.C. contactor KM1 connects the other end of the fuse FU；The switch S2 be parallel to it is described after
The both ends of the normally opened contact KM21 of electric appliance KM2.
Preferably, the signal processing circuit includes the first signal processing circuit A1 and second signal processing circuit A2, institute
Stating water level sensor includes the first water level sensor and the second water level sensor, and first water level sensor includes first luminous
Diode D1, second water level sensor include the second light emitting diode D2；The first light emitting diode D1 passes through described
First signal processing circuit A1 is connect with the input interface I0.0 of the PLC control circuit, and the second light emitting diode D2 is logical
The second signal processing circuit A2 is crossed to connect with the input interface I0.1 of the PLC control circuit.
Preferably, the first signal processing circuit A1 includes resistance R1, polar capacitor C1, triode Q1 and relay
KM3, the relay KM3 include the anode connection institute of coil KM31 and normally opened contact KM32, the first light emitting diode D1
One end of resistance R1 is stated, the other end of the resistance R1 is connected to the base stage of the triode Q1, first light emitting diode
The cathode of D1 is connected to the emitter of the triode Q1, the anode of the polar capacitor C1 be connected to the other end of resistance R1 with
On the line of the base stage of triode Q1, the cathode of the polar capacitor C1 is connected to cathode and three poles of the first light emitting diode D1
On the line of the emitter of pipe Q1, the cathode of the polar capacitor C1 is grounded, the collector wiring circle KM31 of the triode Q1
One end, the other end of coil KM31 connects voltage source V1.
Preferably, the relay KM3 is DC24V relay, and the voltage source V1 is 24V.
Preferably, the second signal processing circuit A2 includes resistance R2, polar capacitor C2, triode Q2 and relay
KM4, the relay KM4 include the anode connection institute of coil KM41 and normally opened contact KM42, the second light emitting diode D2
One end of resistance R2 is stated, the other end of the resistance R2 is connected to the base stage of the triode Q2, second light emitting diode
The cathode of D2 is connected to the emitter of the triode Q2, the anode of the polar capacitor C2 be connected to the other end of resistance R2 with
On the line of the base stage of triode Q2, the cathode of the polar capacitor C2 is connected to cathode and three poles of the second light emitting diode D2
On the line of the emitter of pipe Q2, the cathode of the polar capacitor C2 is grounded, the collector wiring circle KM41 of the triode Q2
One end, the other end of coil KM41 connects voltage source V2.
Preferably, the relay KM4 is DC24V relay, and the voltage source V2 is 24V.
Preferably, the PLC control circuit includes PLC module and its peripheral circuit, and the PLC module includes input interface
I0.0, input interface I0.1, the common end 1M of left side input point internal circuit, the common end M of left side input point internal circuit, a left side
The common end L+ of side input point internal circuit, output interface Q0.0, the common end 1M of right side output point internal circuit, right side output
Common end 1L+, the end phase line L, zero curve N-terminal and the protective grounding PE terminal of point internal circuit, left side input point inside electricity
The common end M on the road and common end L+ of left side input point internal circuit is a pair of of the power supply for the DC24V output that PLC module provides
End, the common end 1M of right side output point internal circuit and the common end 1L+ of right side output point internal circuit are what PLC module provided
DC24V is exported another to power end, the common end 1M of left side input point internal circuit and the public affairs of left side input point internal circuit
The common end 1M connection of M and right side output point internal circuit, the common end L+ of left side input point internal circuit and right side are held altogether
Input interface is accessed in one end normally opened contact KM32 of the common end 1L+ connection of output point internal circuit, the relay KM3
Input interface I0.1, the normally opened contact of the relay KM3 are accessed in one end normally opened contact KM42 of I0.0, the relay KM4
The other end of the normally opened contact KM42 of the other end of KM32 and the relay KM4 connect the left side input point internal circuit
Common end L+；Output interface Q0.0 meets one end coil KM22 of the relay KM2, the coil KM22 of the relay KM2
Another termination right side output point internal circuit common end 1M；The indirect AC power source at the end the phase line L and zero curve N-terminal
The voltage of AC2, AC power source AC2 are AC220V, the protective grounding PE terminal ground.
Preferably, the PLC module selects the CPU224XP in siemens PLC series, and the PLC module of the model is
Transistor-type.
The utility model has the advantage that the utility model combines scene practical compared with prior art, designs simple real
With, facilitating operation, water can be automatically drained out the ponding below switchgear house in pond when full, it owes that water pump can be automatically stopped when water,
The present apparatus can not only be automatically controlled and can be manually controlled, can be by manual when automatic control unit breaks down
The P that switches off the pump is controlled, can be good at protecting equipment.It joined electrothermal relay FR in the present apparatus, when water pump P idle running,
Secondary circuit can be cut off in time to stop water pump P operation, protect water pump P well.
Detailed description of the invention
It, below will be to required use in utility model description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing be briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of overall structure signal of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Figure；
Fig. 2 is a kind of circuit of the major loop of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Schematic diagram；
Fig. 3 is a kind of electricity of the secondary circuit of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Road schematic diagram；
Fig. 4 is a kind of first signal processing of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
The circuit diagram of circuit A1；
Fig. 5 is a kind of second signal processing of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
The circuit diagram of circuit A2；
Fig. 6 is a kind of PLC control circuit of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Schematic diagram；
Fig. 7 is a kind of programming of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
PLC ladder diagram；
Fig. 8 is a kind of input interface I0.0 of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
The schematic diagram of PLC control circuit when connection；
Fig. 9 is a kind of input interface I0.1 of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
The schematic diagram of PLC control circuit when connection；
Figure 10 is that a kind of power distribution station PLC disclosed in the utility model embodiment 1 control pumping water device manually boots water
Circuit diagram when switch S1 and S2 are closed in secondary circuit under pump mode；
Figure 11 is a kind of manual stopping water of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Circuit diagram when switch S1 is disconnected in secondary circuit under pump mode；
Figure 12 is a kind of major loop conducting of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Circuit diagram；
Figure 13 is a kind of automatic control mould of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Circuit diagram when switch S1 closure and S2 are disconnected in secondary circuit under formula；
Figure 14 is a kind of automatic control mould of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Automatically start circuit diagram when normally opened contact KM21 is closed in the secondary circuit of water pump under formula；
Figure 15 is a kind of programming of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
Timing diagram；
Figure 16 is main in a kind of major loop of the control pumping water device of power distribution station PLC disclosed in the utility model embodiment 1
Circuit diagram when contact KM11 is disconnected；
Figure 17 is a kind of the first water level biography of power distribution station PLC control pumping water device disclosed in the utility model embodiment 1
The arrangement schematic diagram of sensor and the second water level sensor in pond；
Figure 18 is a kind of touch screen and PLC of power distribution station PLC control pumping water device disclosed in the utility model embodiment 2
The connection schematic diagram of module.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
As shown in Figure 1, a kind of power distribution station PLC controls pumping water device, including major loop 1, secondary circuit 2, PLC control circuit
3, water level sensor (not shown) and signal processing circuit 5, the major loop 1 are connect with the secondary circuit 2, the water level
Sensor includes light emitting diode 4, and the light emitting diode 4 connects the signal processing circuit 5, the signal processing circuit 5
Output end connect the input interface of the PLC control circuit 3, the output interface and the secondary returning of the PLC control circuit 3
Road 2 connects.
The signal processing circuit 5 includes the first signal processing circuit A1 and second signal processing circuit A2, the water level
Sensor includes the first water level sensor and the second water level sensor, and the first water level sensor, that is, full water sensor, water level is low, full
The floating ball (not shown) of water sensor is non-rising, and full water sensor is not alarmed, and water level goes up, and floating ball floats, full water sensor report
It is alert；Second water level sensor owes water sensor, and water level is high, and floating ball floats, and owes water sensor and does not alarm, water level decreasing, floating ball
It falls, owes water sensor alarm；The arrangement of full water sensor and deficient water sensor in pond is as shown in figure 17, first water
Level sensor includes the first light emitting diode D1, and second water level sensor includes the second light emitting diode D2；Described first
Light emitting diode D1 is connect by the first signal processing circuit A1 with the input interface I0.0 of the PLC control circuit 3, institute
It states the second light emitting diode D2 and passes through the input interface I0.1 of the second signal processing circuit A2 and the PLC control circuit 3
Connection.
As shown in Fig. 2, the major loop 1 includes electrothermal relay FR, A.C. contactor KM1 (not shown) and protects with electric leakage
The three-phase of shield is spaced apart 3P, and the A.C. contactor KM1 includes main contact KM11 and coil KM12 (not shown), and the exchange connects
The main contact KM11 of tentaculum KM1 is normally opened, and tri- terminals of A, B, C that the earth leakage protective three-phase of band is spaced apart 3P connect described respectively
End of incoming cables L1, L2, L3 of the main contact KM11 of A.C. contactor KM1, the outlet of the main contact KM11 of the A.C. contactor KM1
End T1, T2, T3 pass through electrothermal relay FR respectively and the three-phase power line of the water pump P is separately connected.
As shown in figure 3, the secondary circuit 2 includes coil KM12, the electrothermal relay of fuse FU, A.C. contactor KM1
Normally-closed contact FR1, switch S1, switch S2 and the relay KM2 (not shown) of FR, the relay KM2 includes normally opened contact
KM21 and coil KM22 (not shown), one end point of the normally opened contact KM21 of one end and relay KM2 of the fuse FU
It is not connected to the both ends of AC power source AC1, the other end of the normally opened contact KM21 of the relay KM2 sequentially passes through switch S1, heat
The coil KM12 of the normally-closed contact FR1 and A.C. contactor KM1 of relay FR connect the other end of the fuse FU；It is described
Switch S2 is parallel to the both ends of the normally opened contact KM21 of the relay KM2, and the AC power source AC1 is AC220V.
As shown in figure 4, the first signal processing circuit A1 include resistance R1, polar capacitor C1, triode Q1 and after
The coil KM31, the relay KM3 of electric appliance KM3 includes coil KM31 and normally opened contact KM32, first light emitting diode
The anode of D1 connects one end of the resistance R1, and the other end of the resistance R1 is connected to the base stage of the triode Q1, described
The cathode of first light emitting diode D1 is connected to the emitter of the triode Q1, and the anode of the polar capacitor C1 is connected to electricity
It hinders on the other end of R1 and the line of the base stage of triode Q1, the cathode of the polar capacitor C1 is connected to the first light emitting diode
On the line of the emitter of the cathode and triode Q1 of D1, the cathode of the polar capacitor C1 is grounded, the collection of the triode Q1
One end of electrode connection circle KM31, the other end of coil KM31 connect voltage source V1, and resistance R1 is 10K Ω, and polar capacitor C1 is
10μF。
Specifically, the relay KM3 is DC24V relay, the voltage source V1 is 24V, and the triode Q1 is NPN
Type triode, model S9013.
As shown in figure 5, the second signal processing circuit A2 include resistance R2, polar capacitor C2, triode Q2 and after
The coil KM41, the relay KM4 of electric appliance KM4 includes coil KM41 and normally opened contact KM42, second light emitting diode
The anode of D2 connects one end of the resistance R2, and the other end of the resistance R2 is connected to the base stage of the triode Q2, described
The cathode of second light emitting diode D2 is connected to the emitter of the triode Q2, and the anode of the polar capacitor C2 is connected to electricity
It hinders on the other end of R2 and the line of the base stage of triode Q2, the cathode of the polar capacitor C2 is connected to the second light emitting diode
On the line of the emitter of the cathode and triode Q2 of D2, the cathode of the polar capacitor C2 is grounded, the collection of the triode Q2
The other end of one end of electrode connection circle KM41, coil KM41 connects voltage source V2.
Specifically, the relay KM4 is DC24V relay, the voltage source V2 is 24V, and the triode Q2 is NPN
Type triode, model S9013.
It is as shown in Figure 6 only the schematic diagram of the PLC control circuit 3 of the application, it can be according to different in actual application
PLC type number adjusts the line of peripheral circuit, and the adjustment is all within the scope of protection of this application.The PLC control circuit
Including PLC module and its peripheral circuit, which selects the CPU224XP, the PLC of the model in siemens PLC series
Module is transistor-type, is the aerial lug of PLC module in Fig. 6, though there is lines to be arranged in PLC module, is only represented external
Connection relationship, in order to lines are so arranged Cai being artistically decorated.The PLC module includes input interface I0.0, input interface
I0.1, the common end 1M of left side input point internal circuit, the common end M of left side input point internal circuit, inside the input point of left side
The common end L+ of circuit, output interface Q0.0, the common end 1M of right side output point internal circuit, right side output point internal circuit
Common end 1L+, the end phase line L, zero curve N-terminal and protective grounding PE terminal, the common end M of the left side input point internal circuit and
The common end L+ of left side input point internal circuit is a pair of of the power end for the DC24V output that PLC module provides, in the output point of right side
The common end 1M of the portion's circuit and common end 1L+ of right side output point internal circuit is the another of the DC24V output that PLC module provides
To power end, the common end 1M of left side input point internal circuit and the common end M of left side input point internal circuit and right side are defeated
Put the common end 1M connection of internal circuit out, the common end L+ of left side input point internal circuit and right side output point internal circuit
Input interface I0.0 is accessed in one end normally opened contact KM32 of common end 1L+ connection, the relay KM3, the relay KM4's
Input interface I0.1, the other end of the normally opened contact KM32 of the relay KM3 and described are accessed in the one end normally opened contact KM42
The other end of the normally opened contact KM42 of relay KM4 meets the common end L+ of the left side input point internal circuit；Output interface
Q0.0 connects one end coil KM22 of the relay KM2, and another termination right side of the coil KM22 of the relay KM2 is defeated
The common end 1M of internal circuit is put out；The indirect AC power source AC2 at the end the phase line L and zero curve N-terminal, the end the protective grounding PE
Son ground connection.
The PLC control program design of the application is the STEP7- that writes based on STEP7-Micro/WIN software programming
Micro/WIN programming code is downloaded in PLC module by Programme Line, PLC ladder diagram such as Fig. 7 of the programming of the application
It is shown.In STEP7-Micro/WIN programming software, definition input interface I0.0 received signal is full water enabling signal, fixed
Adopted input interface I0.1 received signal is to owe water stop signal, and the signal for defining output interface Q0.0 output is water pump starting letter
Number.By the normally opened contact KM32 of the input interface I0.0 connection relay KM3 of PLC module, when water level in water pool goes up, on water level
Rise and cover the first water level sensor, triggering normally opened contact KM32 closure opens as shown in figure 8, input interface I0.0 receives full water
Dynamic signal；By the normally opened contact KM42 of the input interface I0.1 connection relay KM4 of PLC module, work as water level decreasing, water level decreasing
When to below the first water level sensor, the normally opened contact KM32 of the relay KM3 of the input interface I0.0 connection of PLC module is from closing
Conjunction state is converted into off-state, and when below water level decreasing to the second water level sensor, triggering normally opened contact KM42 closure is such as schemed
Shown in 9, input interface I0.1 receives deficient water stop signal；By the coil of the output interface Q0.0 contact relay KM2 of PLC module
KM22.If following table one is I/O allocation table.
One I/O allocation table of table
Input interface I0.0 and input interface I0.1 has corresponding defeated in STEP7-Micro/WIN programming software
Enter relay, output interface Q0.0 has corresponding output relay, the input relay in PLC ladder diagram and output relay
The state conversion of the normally opened contact and normally-closed contact of device is simultaneous.For example, the input interface I0.0 when PLC module has
When 24V voltage input, input interface I0.0 is connected at this time, and the normally opened contact of the corresponding input relay of input interface I0.0 closes
It closes, normally-closed contact disconnects.When the input interface I0.1 of PLC module has 24V voltage input, input interface I0.1 is connected at this time,
The normally opened contact of the corresponding input relay of input interface I0.1 is closed, and normally-closed contact disconnects.When the output interface of PLC module
When Q0.0 has 24V voltage output, output interface Q0.0 is connected at this time, the normally opened touching of the corresponding output relay of output interface Q0.0
Point closure, normally-closed contact disconnect.Wherein, input relay, output relay are the virtual relays in programming software.
The working principle and the course of work of the utility model are as follows: a kind of power distribution station PLC control provided by the utility model
Pumping water device can work in both modes, i.e., manually and automatically, manually and automatically first leak the band in major loop when mode
Electric protection three-phase is spaced apart in 3P folding, manually boots under water pump mode, need to only be closed switch S1 and switch S2, such as Figure 10 institute
Show, the coil KM12 of relay KM1 obtains electric, and the main contact KM11 of relay KM1 is normally opened contact, when coil KM12 obtain it is electric, often
The main contact KM11 closure opened, major loop 1 are connected, and water pump P connects in major loop 1, specifically, the three-phase power line of water pump P is logical
Overtemperature relay FR is separately connected leading-out terminal T1, T2 and T3 of the main contact KM11 of the A.C. contactor KM1, therefore, water
Pump P, which must be electrically activated, to be started pumping, and water pump P obtains electric as shown in figure 12.Stop under water pump mode manually, switch S1 need to only be disconnected,
As shown in figure 11, the coil KM12 power loss of relay KM1, the main contact KM11 of relay KM1 are that normally opened contact is not closed, and are led back
Road 1 is not turned on, and water pump P does not start, as shown in figure 16.
Under automatic control mode, as shown in figure 13, the switch S1 in secondary circuit 2 is closed, switch S2 is disconnected.Work as pond
In water level rise when covering the first water level sensor, the Light-Emitting Diode D1 lamp of the first water level sensor is bright (to have 1.759V left
Right voltage), the voltage of Light-Emitting Diode D1 is by the first signal processing circuit A1, so that three in the first signal processing circuit A1
The base stage b end voltage of pole pipe Q1 is greater than 0.7V, according to transistor switching circuit principle, the end collector c of triode Q1 and transmitting
The conducting of the pole end e, circuit conducting where the coil KM31 of relay KM3, the coil KM31 of relay KM3 obtain electric, while relay
The normally opened contact KM32 of KM3 is closed, as shown in figure 8, the input interface I0.0 of i.e. PLC module has 24V voltage input, is inputted at this time
Interface I0.0 is connected, and output interface Q0.0 obtains electric and self-locking, and the coil KM22 of relay KM2 is obtained electric at this time, and relay KM2's is normal
Open contact KM21 closure as shown in figure 14, the coil KM12 of A.C. contactor KM1 obtains electric, the main contact of A.C. contactor KM1
KM11 closure, major loop 1 are connected, and water pump P connects in major loop 1, and water pump P must electrically activate, pond full water, and water level rise covers the
When one water level sensor, the input interface I0.0 of PLC module has 24V voltage input, and input interface I0.0 is connected at this time, TEP7-
The normally opened contact of the corresponding input relay of input interface I0.0 in Micro/WIN programming software is closed, output interface Q0.0
The coil of corresponding output relay obtains electric, normally opened contact closure, realizes self-locking holding, water pump P starting, PLC control program
It is as shown in figure 15 to design timing diagram, input interface I0.0 is connected, when input interface I0.1 disconnects, input interface in timing diagram
I0.0 corresponds to high level, and input interface I0.1 corresponds to low level, and output interface Q0.0 is high level, output interface Q0.0 conducting.
When below water level decreasing to the first water level sensor, the input interface I0.0 connection relay KM3's of PLC module
Normally opened contact KM32 is converted into off-state from closed state.When water level decreasing to the second water level sensor, the second water level is passed
The Light-Emitting Diode D2 lamp of sensor is bright (having 1.759V or so voltage), and the voltage of light emitting diode D2 handles electricity by second signal
Road A2, so that the base stage b end voltage of the triode Q2 in second signal processing circuit A2 is greater than 0.7V, according to triode switch electricity
The end collector c of road principle, triode Q2 is connected with emitter e end, circuit conducting where the coil KM41 of relay KM4, after
The coil KM41 of electric appliance KM4 obtains the normally opened contact KM42 closure of electric, to connect at this time with input interface I0.1 relay KM4, such as
Shown in Fig. 9, i.e. the input interface I0.1 of PLC module has 24V voltage input, and input interface I0.1 is connected at this time, STEP7-
The normally-closed contact of the corresponding input relay of input interface I0.1 in Micro/WIN programming software disconnects, output interface Q0.0
The normally opened contact KM21 of power loss, the coil KM22 power loss of relay KM2, while relay KM2 are disconnected, A.C. contactor KM1's
The main contact KM11 of coil KM12 power loss, A.C. contactor KM1 is disconnected, and as shown in figure 16, major loop 1 powers off, and water pump P connects in master
In circuit 1, water pump P power-off is out of service.PLC control program design timing diagram is as shown in figure 14, and input interface I0.0 disconnects,
When input interface I0.1 is connected, input interface I0.0 corresponds to low level in timing diagram, and input interface I0.1 corresponds to high level, output
Interface Q0.0 is low level, and output interface Q0.0 is not turned on.
Embodiment 2
As shown in figure 18, the utility model embodiment 2 and the difference of the utility model embodiment 1 are:
The output interface of PLC module is connect with touch screen SC in the utility model embodiment 2, for showing opening for water pump P
Dynamic state and/or halted state；
The control input interface of PLC module is connect with touch screen SC in the utility model embodiment 2, for receiving operator
The control parameter that member inputs on the touchscreen.
Touch screen SC is connect with PLC module by S7200 connection in the utility model embodiment 2, is had on touch screen SC
Start and stop button and status indicator lamp red light and green light.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of power distribution station PLC controls pumping water device, which is characterized in that including major loop, secondary circuit, signal processing circuit,
Water level sensor and PLC control circuit, the major loop are connect with the secondary circuit, and the water level sensor includes shining
Diode, the light emitting diode connect the signal processing circuit, and the output end of the signal processing circuit connects the PLC
The output interface of the input interface of control circuit, the PLC control circuit is connect with the secondary circuit.
2. a kind of power distribution station PLC according to claim 1 controls pumping water device, which is characterized in that the major loop includes
Electrothermal relay FR, A.C. contactor KM1 and it is spaced apart 3P with earth leakage protective three-phase, the A.C. contactor KM1 includes main touching
Head KM11 and coil KM12, the main contact KM11 of the A.C. contactor KM1 is normally opened, and the earth leakage protective three-phase of band is spaced apart
Tri- terminals of A, B, C of 3P connect end of incoming cables L1, L2, L3 of the main contact KM11 of the A.C. contactor KM1, the friendship respectively
Leading-out terminal T1, T2, the T3 for flowing the main contact KM11 of contactor KM1 pass through the three-phase power line of electrothermal relay FR and water pump P respectively
It is separately connected.
3. a kind of power distribution station PLC according to claim 2 controls pumping water device, which is characterized in that the secondary circuit packet
Include fuse FU, the coil KM12 of A.C. contactor KM1, the normally-closed contact FR1 of electrothermal relay FR, switch S1, switch S2 and
Relay KM2, the relay KM2 include normally opened contact KM21 and coil KM22, one end of the fuse FU and relay
One end of the normally opened contact KM21 of device KM2 is coupled with the both ends of AC power source AC1, the normally opened contact of the relay KM2
The other end of KM21 sequentially passes through the coil KM12 of switch S1, the normally-closed contact FR1 of electrothermal relay FR and A.C. contactor KM1
Connect the other end of the fuse FU；The switch S2 is parallel to the both ends of the normally opened contact KM21 of the relay KM2.
4. a kind of power distribution station PLC according to claim 3 controls pumping water device, which is characterized in that the signal processing electricity
Road includes the first signal processing circuit A1 and second signal processing circuit A2, and the water level sensor includes the first water level sensor
With the second water level sensor, first water level sensor includes the first light emitting diode D1, the second water level sensor packet
Include the second light emitting diode D2；The first light emitting diode D1 is controlled by the first signal processing circuit A1 and PLC
The input interface I0.0 connection of circuit processed, the second light emitting diode D2 by the second signal processing circuit A2 with it is described
The input interface I0.1 connection of PLC control circuit.
5. a kind of power distribution station PLC according to claim 4 controls pumping water device, which is characterized in that at first signal
It includes coil KM31 that reason circuit A1, which includes resistance R1, polar capacitor C1, triode Q1 and relay KM3, the relay KM3,
One end of the resistance R1 is connected with the anode of normally opened contact KM32, the first light emitting diode D1, the resistance R1's is another
One end is connected to the base stage of the triode Q1, and the cathode of the first light emitting diode D1 is connected to the hair of the triode Q1
Emitter-base bandgap grading, the anode of the polar capacitor C1 are connected on the other end of resistance R1 and the line of the base stage of triode Q1, the pole
The cathode of property capacitor C1 is connected on the line of the cathode of the first light emitting diode D1 and the emitter of triode Q1, the polarity
The cathode of capacitor C1 is grounded, one end of the collector wiring circle KM31 of the triode Q1, and the other end of coil KM31 connects electricity
Potential source V1.
6. a kind of power distribution station PLC according to claim 5 controls pumping water device, which is characterized in that the relay KM3 is
DC24V relay, the voltage source V1 are 24V.
7. a kind of power distribution station PLC according to claim 4 controls pumping water device, which is characterized in that at the second signal
It includes coil KM41 that reason circuit A2, which includes resistance R2, polar capacitor C2, triode Q2 and relay KM4, the relay KM4,
One end of the resistance R2 is connected with the anode of normally opened contact KM42, the second light emitting diode D2, the resistance R2's is another
One end is connected to the base stage of the triode Q2, and the cathode of the second light emitting diode D2 is connected to the hair of the triode Q2
Emitter-base bandgap grading, the anode of the polar capacitor C2 are connected on the other end of resistance R2 and the line of the base stage of triode Q2, the pole
The cathode of property capacitor C2 is connected on the line of the cathode of the second light emitting diode D2 and the emitter of triode Q2, the polarity
The cathode of capacitor C2 is grounded, one end of the collector wiring circle KM41 of the triode Q2, and the other end of coil KM41 connects electricity
Potential source V2.
8. a kind of power distribution station PLC according to claim 7 controls pumping water device, which is characterized in that the relay KM4 is
DC24V relay, the voltage source V2 are 24V.
9. a kind of power distribution station PLC control pumping water device according to claim 5 or 7, which is characterized in that the PLC control
Circuit includes PLC module and its peripheral circuit, and the PLC module includes input interface I0.0, input interface I0.1, left side input
Put the common end L of the common end 1M of internal circuit, the common end M of left side input point internal circuit, left side input point internal circuit
+, output interface Q0.0, the common end 1M of right side output point internal circuit, the common end 1L+ of right side output point internal circuit, phase
The end line L, zero curve N-terminal and protective grounding PE terminal, in the common end M and left side input point of the left side input point internal circuit
The common end L+ of portion's circuit be PLC module provide DC24V output a pair of of power end, right side output point internal circuit it is public
The common end 1L+ of end 1M and right side output point internal circuit is the another to power end of the DC24V output that PLC module provides, left
The common end 1M of the side input point internal circuit and common end M of left side input point internal circuit and right side output point internal circuit
Common end 1M connection, the common end 1L+ of the common end L+ of left side input point internal circuit and right side output point internal circuit connects
It connects, input interface I0.0, the normally opened contact of the relay KM4 are accessed in one end normally opened contact KM32 of the relay KM3
Input interface I0.1, the other end of the normally opened contact KM32 of the relay KM3 and the relay KM4 are accessed in the one end KM42
The other end of normally opened contact KM42 meet the common end L+ of the left side input point internal circuit；Output interface Q0.0 connects described
One end coil KM22 of relay KM2, another termination of the coil KM22 of relay KM2 right side output point inside electricity
The common end 1M on road；The indirect AC power source AC2 at the end the phase line L and zero curve N-terminal, the protective grounding PE terminal ground.
10. a kind of power distribution station PLC according to claim 9 controls pumping water device, which is characterized in that the PLC module choosing
With the CPU224XP in siemens PLC series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205826.XU CN209586649U (en) | 2019-02-18 | 2019-02-18 | A kind of power distribution station PLC control pumping water device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205826.XU CN209586649U (en) | 2019-02-18 | 2019-02-18 | A kind of power distribution station PLC control pumping water device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586649U true CN209586649U (en) | 2019-11-05 |
Family
ID=68354531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920205826.XU Active CN209586649U (en) | 2019-02-18 | 2019-02-18 | A kind of power distribution station PLC control pumping water device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209586649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630390A (en) * | 2019-02-18 | 2019-04-16 | 淮南矿业(集团)有限责任公司 | A kind of power distribution station PLC control pumping water device |
| CN111075700A (en) * | 2020-02-17 | 2020-04-28 | 上海神舟精宜汽车制造有限公司 | Electric control system and control method for sanitation truck water pump |
-
2019
- 2019-02-18 CN CN201920205826.XU patent/CN209586649U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630390A (en) * | 2019-02-18 | 2019-04-16 | 淮南矿业(集团)有限责任公司 | A kind of power distribution station PLC control pumping water device |
| CN109630390B (en) * | 2019-02-18 | 2023-12-26 | 淮南矿业(集团)有限责任公司 | PLC control water pumping device of power distribution station |
| CN111075700A (en) * | 2020-02-17 | 2020-04-28 | 上海神舟精宜汽车制造有限公司 | Electric control system and control method for sanitation truck water pump |
| CN111075700B (en) * | 2020-02-17 | 2024-03-08 | 上海神舟精宜汽车制造有限公司 | Electric control system and control method for water pump of sanitation truck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206461372U (en) | Power distribution station three-phase load unbalance automatic regulating system | |
| CN208478943U (en) | A kind of remote control intelligent household distribution box | |
| CN209586649U (en) | A kind of power distribution station PLC control pumping water device | |
| CN204031043U (en) | There is the photovoltaic system of intelligent turn-off function | |
| CN201236358Y (en) | Automatic water compensating apparatus for drinking water column | |
| CN109630390A (en) | A kind of power distribution station PLC control pumping water device | |
| CN107328110A (en) | Pulsed water outlet power-off control circuit | |
| CN209216835U (en) | A kind of control device of breaker | |
| CN2591520Y (en) | Electric water heater with omnibearing electricity leakage protection function | |
| CN210744458U (en) | Intelligent low-voltage distribution box with grounding function | |
| CN203826919U (en) | Single-phase three-phase open-phase power down alarm device | |
| CN204333924U (en) | Pumping irrigation well electromotor integrated protection compensatory control case | |
| CN208797366U (en) | The household distribution box system of auto-power on and one-touch power-off | |
| CN204905836U (en) | Safe type autoeclosing switch | |
| CN203367776U (en) | Knife switch box | |
| CN107068506A (en) | The anti-power transmission automatic disconnecting device of power distribution network low pressure | |
| CN203800558U (en) | Automatic switch-on controller | |
| CN206023217U (en) | A kind of domestic distribution connection circuit | |
| CN213486232U (en) | Intelligent control box for irrigation system | |
| CN204409149U (en) | Outdoor radio-frequency card motor-pumped well Long-distance Control irrigation rig | |
| CN205301895U (en) | Intelligence electric brake system based on arduino singlechip | |
| CN2591826Y (en) | Special earth leakage breaking protector for electric water heater | |
| CN208478924U (en) | A kind of home lighting distribution box | |
| CN215267788U (en) | Intelligent monitoring device for transformer substation | |
| CN210090971U (en) | Low-voltage unit control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |