CN206573932U - A kind of electrical equipment control device - Google Patents
A kind of electrical equipment control device Download PDFInfo
- Publication number
- CN206573932U CN206573932U CN201720293623.1U CN201720293623U CN206573932U CN 206573932 U CN206573932 U CN 206573932U CN 201720293623 U CN201720293623 U CN 201720293623U CN 206573932 U CN206573932 U CN 206573932U
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- Prior art keywords
- contactor
- control
- switch
- output interface
- local
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Abstract
The utility model discloses a kind of electrical equipment control device, including：PLC, AC power, contactor, remote switch, local switch, priority control switch and three-phase breaker, wherein, one end of AC power is connected to PLC power input interface, the other end and electrically connected by the coil of contactor with PLC contactor control output interface；PLC direct current positive pole output interface is electrically connected by the normally open contact of remote switch, local switch, priority control switch and contactor with PLC remote control signal input interface, local control signal input interface, priority control signal input interface, contactor status signal input interface respectively, PLC direct current negative pole output interface ground connection；Electrical equipment to be controlled passes sequentially through the main contact of contactor, three-phase breaker and is concatenated on three-phase firewire.The present apparatus can ensure that in overhaul of the equipments contactor is all the time in the control locally switched.
Description
Technical field
The utility model is related to contactor control technology field, more particularly to a kind of electrical equipment control device.
Background technology
Contactor is a kind of common switching device, and it mainly includes coil, main contact and auxiliary contact.Wherein, it is main to touch
Head is applied in primary circuit connect electrical equipment, and control electrical equipment obtains electric or power-off；Auxiliary contact includes normally open contact
And normally closed interlock, applied to secondary circuit.Main contact and auxiliary contact are controlled by coil, coil obtain it is electric after main contact close
Close, electrical equipment obtains electric, while auxiliary contact is also acted, auxiliary contact normally closed interlock disconnects, normally open contact closure；Coil losing electricity
Main contact is disconnected afterwards, electrical equipment is powered off, while auxiliary contact is also acted, auxiliary contact normally open contact is disconnected, normally closed interlock is closed
Close.
The electrical equipment for needing remote control and locally controlling, such as illuminator, motor, frequently with contactor conduct
Switch element controls the opening and closing of electrical equipment.At present, for the electrical equipment for needing remote control and locally controlling, electrical equipment
Control device includes two switches and a contactor, i.e., control ground is each to set one to switch local and remote, as shown in figure 1,
The switch of two places is used to the electric and dead electricity that obtains of control contactor coil, and then reaches the mesh of two places control electrical equipment opening and closing
's.When two switches have any one to press, the coil of contactor can obtain electric, main contact closure, and electrical equipment obtains electric.Example
Such as, certain electrical equipment with needing first and second two places control, wherein, realize to first remote control, realize to second local control, should
During electrical equipment normal work, with operating first with the switching achievable first opening and closing of the remote control electrical equipment；Electrical equipment is examined
When repairing, with operating second with the switching achievable second opening and closing of the local manipulation electrical equipment.
But, at present in overhaul of the equipments, because the electrical equipment can may be grasped by mistake to remote operation with two places control
Make, cause to start or stop the electrical equipment in maintenance, cause device damage, personal damage, cause larger potential safety hazard.
Utility model content
The utility model provides a kind of electrical equipment control device, to solve during overhaul of the equipments in the prior art, electrically
Caused by equipment still can be operated with two places the problem of potential safety hazard.
The utility model provides a kind of electrical equipment control device, and described device includes：Programmable logic controller (PLC)
PLC, AC power, contactor, remote switch, local switch, priority control switch and three-phase breaker, wherein,
The PLC includes power input interface, contactor control output interface, direct current positive pole output interface, direct current
Negative pole output interface, remote control signal input interface, local control signal input interface, priority control signal input interface
With contactor status signal input interface；
One end of the AC power is connected to the power input interface, and the other end of the AC power is connected to institute
Coil one end of contactor is stated, the other end of the coil is electrically connected with contactor control output interface；
The direct current positive pole output interface of the PLC is electrically connected the remote switch, local switch, priority control
One end of the normally open contact of switch and contactor, the direct current negative pole output interface ground connection, the other end of the remote switch
Electrically connected with the remote control signal input interface, the other end locally switched connects with local control signal input
Mouth electrical connection, the other end of the priority control switch is electrically connected with the priority control signal input interface, contactor
Normally open contact electrically connected with the contactor status signal input interface；
Electrical equipment to be controlled passes sequentially through the main contact of the contactor, three-phase breaker and is concatenated on three-phase firewire.
Preferably, described device also includes：Local indicator lamp, long-range indicator lamp and priority control indicator lamp, the PLC
Also include local state of a control signal output interface, remote control status signal output interface and priority control status signal defeated
Outgoing interface, the AC power is respectively connecting to the local indicator lamp, the long-range indicator lamp and the priority control and referred to
Show one end of lamp, the other end of the local indicator lamp is electrically connected with the local state of a control signal output interface, it is described remote
The other end of journey indicator lamp is electrically connected with the remote control status signal output interface, the priority control indicator lamp it is another
One end is electrically connected with the priority control status signal output interface.
Preferably, the PLC includes Siemens S7-100CPU224 types PLC.
The technical scheme that the utility model is provided can include the following benefits：
A kind of electrical equipment control device that the utility model embodiment is provided, including：Programmable logic controller (PLC) PLC,
AC power, contactor, remote switch, local switch, priority control switch and three-phase breaker, wherein, the PLC includes
Power input interface, contactor control output interface, direct current positive pole output interface, direct current negative pole output interface, long-range control
Signal input interface processed, local control signal input interface, priority control signal input interface and contactor status signal are defeated
Incoming interface；One end of the AC power is connected to the power input interface, and the other end of the AC power is connected to institute
Coil one end of contactor is stated, the other end of the coil is electrically connected with contactor control output interface；The PLC's is straight
The electric positive pole output interface of stream is electrically connected the normally opened of the remote switch, local switch, priority control switch and contactor
One end of contact, the direct current negative pole output interface ground connection, the other end of the remote switch and the remote control signal
Input interface is electrically connected, and the other end locally switched is electrically connected with the local control signal input interface, described preferential
The other end of power controlling switch is electrically connected with the priority control signal input interface, and the normally open contact of contactor connects with described
Tentaculum status signal input interface is electrically connected；Electrical equipment to be controlled passes sequentially through the main contact of the contactor, three-phase break
Device is concatenated on three-phase firewire.The present apparatus can be switched by priority control and PLC sets the priority control locally switched, really
Protect overhaul of the equipments or other can only be in the case of a switch control, contactor is opened in local switch or remotely all the time
Under the control for closing a side, it is to avoid local switch and remote switch control electrical equipment to be controlled and occur security incident simultaneously.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The utility model can be limited.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by the required accompanying drawing used in embodiment
It is briefly described, it should be apparent that, for those of ordinary skills, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for electrical equipment control device that Fig. 1 provides for prior art；
A kind of electrical equipment control device control principle structural representation that Fig. 2 provides for the utility model embodiment；
A kind of electrical block diagram for electrical equipment control device that Fig. 3 provides for the utility model embodiment；
A kind of structural representation of electrical equipment control device one embodiment that Fig. 4 provides for the utility model embodiment
Figure；
In Fig. 1-4, symbol is represented：1-PLC, 11- power input interface, 12- contactors control output interface, 13- direct currents
Electric positive pole output interface, 14- remote control signal input interfaces, 15- local control signal input interfaces, 16- priority controls
Signal input interface, 17- contactor status signal input interfaces, 18- direct current negative pole output interfaces, the local state of a controls of 19-
Signal output interface, 110- remote control status signal output interfaces, 111- priority control status signal output interfaces, 21-
Main contact, 22- normally open contacts, 23- coils, 3- AC powers, 4- remote switch, 5- is locally switched, 6- priority controls switch,
7- three-phase breakers, 8- electrical equipments to be controlled, the local indicator lamps of 91-, the long-range indicator lamps of 92-, 93- priority controls are indicated
Lamp.
Embodiment
The utility model embodiment provides a kind of electrical equipment control device, and referring to Fig. 2 and Fig. 3, described device includes：Can
Programmed logic controller PLC1, AC power 3, contactor, locally remote switch 4, switch 5, priority control switch 6 and three-phase
Breaker 7, wherein,
The contactor includes main contact 21, normally open contact 22 and coil 23.Electrical equipment 8 to be controlled passes sequentially through described
Main contact 21, the three-phase breaker 7 of contactor are concatenated on three-phase firewire.Contactor is used to control electrical equipment 8 to be controlled
Open and close, the opening and closing of main contact 21 are controlled by PLC1.When main contact 21 is closed, electrical equipment to be controlled
8 obtain electric, opening；When main contact 21 is opened, the dead electricity of electrical equipment 8 to be controlled, closing.Three-phase breaker 7 is mainly that circuit is carried
For short-circuit protection, and as the hand switch element of the circuit, when main contact 21 is closed, by manually disconnecting three-phase break
Device 7, can close electrical equipment 8 to be controlled.
PLC1 includes power input interface 11, contactor control output interface 12, remote control signal input interface 14, sheet
Ground control signal input interface 15, priority control signal input interface 16 and contactor status signal input interface 17.
AC power 3 is PLC1 electric supply installation, when PLC1 is obtained it is electric when, could control contactor connection and during closure.
One end of the AC power 3 is connected to the power input interface 11, and the other end of the AC power 3 is connected to coil 23
One end, the other end of the coil 23 is electrically connected with contactor control output interface 12.PLC1 is directly controlled to coil 23
It is powered or dead electricity, when coil 23 is powered, the main contact 21 of contactor is turned on, normally open contact closure；When 23 dead electricity of coil, connect
The main contact 21 of tentaculum disconnects, and normally open contact disconnects.
Meanwhile, PLC1 also has two direct current output interfaces, respectively direct current positive pole output interface 13 and direct current
Negative pole output interface 18, for externally exporting direct current, generally, PLC1 can externally export 24V direct currents.
Remote switch 4 with being arranged on remote operation, one end of remote switch 4 and PLC1 direct current positive pole output interface 13
Electrical connection, the other end is electrically connected with remote control signal input interface 14, and PLC1 direct current negative pole output interface 18 is grounded.
PLC1 obtains the control information of remote switch 4 by remote control signal input interface 14.When remote switch 4 is closed, PLC controls
Coil 23 processed is powered, and main contact 21 is connected, and electrical equipment 8 to be controlled obtains electric, opening；When remote switch 4 is opened, PLC controls
Coil 23 is powered off, and main contact 21 disconnects, the dead electricity of electrical equipment 8 to be controlled, closing.
Local switch 5 is arranged on the local of electrical equipment 8 to be controlled, and one end of local switch 5 and PLC1 direct current are just
Pole output interface 13 is electrically connected, and the other end is electrically connected with the local control signal input interface 15.PLC1 is by locally controlling
Signal input interface 15 obtains the control information of local switch 5.When local switch 5 is closed, PLC control coils 23 are powered, main
Contact 21 is connected, and electrical equipment 8 to be controlled obtains electric, opening；When local switch 5 is opened, PLC control coils 23 are powered off, main to touch
First 21 disconnect, the dead electricity of electrical equipment 8 to be controlled, closing.
Priority control switch 6 may be provided at the local of electrical equipment 8 to be controlled, one end of priority control switch 6 with
PLC1 direct current positive pole output interface 13 is electrically connected, and the other end is electrically connected with the priority control signal input interface 16.
PLC1 obtains the control information of priority control switch 6 by priority control signal input interface 16.When priority control is opened
When closing 6 closure, local switch 5 has control priority, and now, PLC does not receive the control information of remote switch 4；Work as priority
When controlling switch 6 is opened, local switch 5 does not control priority, and remote switch 4 and local switch 5 can pass through PLC control lines
The 23 electric or dead electricity that obtains is enclosed, and then controls opening or closing for electrical equipment.In a kind of application scenarios, electrically set when to be controlled
For when needing repairing, remote switch 4 can not control opening or closing for electrical equipment 8 to be controlled, now, can close priority control
System switch 6, only by locally switching opening or closing for 5 control electrical equipments 8.
In specific implementation process, remote switch 4, local switch 5 and priority control switch 6 include button, operation
Stopping, sending control for contactor can be achieved in remote switch 4 or 5 the two buttons of local switch, i.e., operable to be controlled electric
The opening and closing of equipment 8, are pressed and make 5 buttons of remote switch 4 or local switch, and electrical equipment to be controlled is opened, pressed again
Make 5 buttons of remote switch 4 or local switch, electrical equipment to be controlled is closed.Priority control shift knob is pressed, local switch
5 have control priority, then click priority control shift knob, and the control priority of local switch 5 is cancelled.It is real by button
The pneumatic and stopping of existing electrical equipment to be controlled, saves button quantity, reduces wiring complexity.
In addition, PLC detects the working condition of contactor for convenience, the normally open contact 22 of contactor is also coupled to the dress
In putting.In specific implementation process, one end of the normally open contact 22 of contactor is electrically connected with direct current positive pole output interface 13, separately
One end is electrically connected with contactor status signal input interface 17.Using normally open contact 22 as PLC input, make PLC can be by normal
The working condition of the condition adjudgement contactor of open contact 22.
In the utility model embodiment, in order that staff quickly understands the working condition of contactor, described device
Also include：Local indicator lamp 91, long-range indicator lamp 92 and priority control indicator lamp 93, the PLC1 also include local control shape
State signal output interface 19, remote control status signal output interface 110 and priority control status signal output interface 111,
The AC power 3 is respectively connecting to the local indicator lamp 91, the long-range indicator lamp 92 and the priority control and indicated
One end of lamp 93, the other end of the local indicator lamp 91 is electrically connected with the local state of a control signal output interface 19, institute
The other end for stating long-range indicator lamp 92 is electrically connected with the remote control status signal output interface 110, the priority control
The other end of indicator lamp 93 is electrically connected with the priority control status signal output interface 111.
Local indicator lamp 91 may be provided at the local of electrical equipment 8 to be controlled, and long-range indicator lamp 92 may be provided to be controlled
The remote control of electrical equipment 8, it is used to the working condition of detector bar.Wherein, local indicator lamp 91 and long-range instruction
The bright light of lamp 92 represents that main noddle on contactor 21 is in closure state, and expression main noddle on contactor 21 of turning off the light is off.
Priority control indicator lamp 93 may be provided at the local of electrical equipment 8 to be controlled, for whether indicating local switch 5
With priority, bright light is represented with priority, the no priority of expression of turning off the light.
In specific implementation process, the PLC1 includes Siemens S7-100CPU224 types PLC.It is western in terms of hardware configuration
The sub- S7-100CPU224 types PLC of door has 14 points of inputs and 10 points of outputs, and there are multiple energization delay relays, power-off to prolong for inside
When relay, power down preserve relay and auxiliary reclay, the need for can meeting the design completely.
As shown in figure 4, siemens PLC CPU224 types PLC N interfaces and L interface respectively with AC power 3 two
Output end is electrically connected, and ground interface is used to be grounded.1L, 2L and 3L are three control ends of 10 output interfaces, 1L, 2L and 3L points
Do not electrically connected with L interface.0.0 output interface in output end can control output interface, one end with coil 23 as contactor
Electrical connection.In output end 0.1,0.2 and 0.3 3 output interface can respectively as local state of a control signal output interface,
Remote control status signal output interface and priority control status signal output interface, respectively with local indicator lamp 91, long-range
Indicator lamp 92 and priority control indicator lamp 93 are electrically connected.Certainly, in specific implementation process, user can select according to actual conditions
Other any output interfaces beyond 1L, 2L and 3L are taken to control output interface, local state of a control signal respectively as contactor
Output interface, remote control status signal output interface and priority control status signal output interface, specific limit is not done herein
System.
In the case of 220V power voltage supplies, the exportable 24V direct currents of siemens PLC CPU224 types PLC, its L+ connects
Mouthful can be as direct current positive pole output interface, M interfaces can be as direct current negative pole output interface, and 1M and 2M are 14 input interfaces
Two control ends, 1M and 2M interfaces electrically connect with M interfaces respectively.In input 0.0,0.1,0.2 3 input interfaces can
Respectively as remote control signal input interface, local control signal input interface and priority control signal input interface, 0.3
Input interface is used as contactor status signal input interface.Certainly, in specific implementation process, user can select according to actual conditions
Take other any input interfaces beyond 1M and 2M interfaces defeated respectively as remote control signal input interface, local control signal
Incoming interface, priority control signal input interface and contactor status signal input interface, are not particularly limited herein.
Certainly, in specific implementation process, it can be increased by increasing contactor, three-phase breaker etc. and to be controlled electrically set
Standby quantity, makes the electrical equipment control device can control multiple electrical equipments to be controlled, with preferable autgmentability.
A kind of electrical equipment control device that the utility model embodiment is provided, including：Programmable logic controller (PLC) PLC,
AC power, contactor, remote switch, local switch, priority control switch and three-phase breaker, wherein, the PLC includes
Power input interface, contactor control output interface, direct current positive pole output interface, direct current negative pole output interface, long-range control
Signal input interface processed, local control signal input interface, priority control signal input interface and contactor status signal are defeated
Incoming interface；One end of the AC power is connected to the power input interface, and the other end of the AC power is connected to institute
Coil one end of contactor is stated, the other end of the coil is electrically connected with contactor control output interface；The PLC's is straight
The electric positive pole output interface of stream is electrically connected the normally opened of the remote switch, local switch, priority control switch and contactor
One end of contact, the direct current negative pole output interface ground connection, the other end of the remote switch and the remote control signal
Input interface is electrically connected, and the other end locally switched is electrically connected with the local control signal input interface, described preferential
The other end of power controlling switch is electrically connected with the priority control signal input interface, and the normally open contact of contactor connects with described
Tentaculum status signal input interface is electrically connected；Electrical equipment to be controlled passes sequentially through the main contact of the contactor, three-phase break
Device is concatenated on three-phase firewire.The present apparatus can be switched by priority control and PLC sets the priority control locally switched, really
Protect overhaul of the equipments or other can only be in the case of a switch control, contactor is opened in local switch or remotely all the time
Under the control for closing a side, it is to avoid local switch and remote switch control electrical equipment to be controlled and occur security incident simultaneously.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice the disclosure of utility model here
New other embodiments.The application is intended to any modification of the present utility model, purposes or adaptations, these
Modification, purposes or adaptations follow general principle of the present utility model and including undocumented skill of the utility model
Common knowledge or conventional techniques in art field.Description and embodiments be considered only as it is exemplary, it is of the present utility model
True scope and spirit are pointed out by following claim.
Above-described the utility model embodiment does not constitute the restriction to the utility model protection domain.
Claims (3)
1. a kind of electrical equipment control device, it is characterised in that described device includes：Programmable logic controller (PLC) PLC (1), friendship
Power supply (3), contactor, remote switch (4), local switch (5), priority control switch (6) and three-phase breaker (7) are flowed, its
In,
The PLC (1) includes power input interface (11), contactor control output interface (12), direct current positive pole output interface
(13), direct current negative pole output interface (18), remote control signal input interface (14), local control signal input interface
(15), priority control signal input interface (16) and contactor status signal input interface (17)；
One end of the AC power (3) is connected to the power input interface (11), and the other end of the AC power (3) connects
It is connected to coil (23) one end of the contactor, the other end and the contactor control output interface (12) of the coil (23)
Electrical connection；
The direct current positive pole output interface (13) of the PLC (1) be electrically connected the remote switch (4), local switch (5),
Priority control switchs one end of the normally open contact (22) of (6) and contactor, and the direct current negative pole output interface (18) is grounded,
The other end of the remote switch (4) is electrically connected with the remote control signal input interface (14), the local switch (5)
The other end is electrically connected with the local control signal input interface (15), the other end of the priority control switch (6) and institute
Priority control signal input interface (16) electrical connection is stated, the normally open contact (22) and the contactor status signal of contactor are defeated
Incoming interface (17) is electrically connected；
Electrical equipment (8) to be controlled passes sequentially through the main contact (21) of the contactor, three-phase breaker (7) and is concatenated into three-phase fire
On line.
2. device as claimed in claim 1, it is characterised in that described device also includes：Local indicator lamp (91), long-range instruction
Lamp (92) and priority control indicator lamp (93), the PLC (1) also includes local state of a control signal output interface (19), remote
Process control status signal output interface (110) and priority control status signal output interface (111), the AC power (3)
It is respectively connecting to the one of the local indicator lamp (91), the long-range indicator lamp (92) and the priority control indicator lamp (93)
End, the other end of the local indicator lamp (91) is electrically connected with the local state of a control signal output interface (19), described remote
The other end of journey indicator lamp (92) is electrically connected with the remote control status signal output interface (110), the priority control
The other end of indicator lamp (93) is electrically connected with the priority control status signal output interface (111).
3. device as claimed in claim 1, it is characterised in that the PLC (1) includes Siemens S7-100CPU224 types PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720293623.1U CN206573932U (en) | 2017-03-23 | 2017-03-23 | A kind of electrical equipment control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720293623.1U CN206573932U (en) | 2017-03-23 | 2017-03-23 | A kind of electrical equipment control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206573932U true CN206573932U (en) | 2017-10-20 |
Family
ID=60053833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720293623.1U Expired - Fee Related CN206573932U (en) | 2017-03-23 | 2017-03-23 | A kind of electrical equipment control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206573932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644556A (en) * | 2021-07-12 | 2021-11-12 | 中国船舶重工集团公司第七二三研究所 | But block terminal of remote control area auxiliary power source |
-
2017
- 2017-03-23 CN CN201720293623.1U patent/CN206573932U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644556A (en) * | 2021-07-12 | 2021-11-12 | 中国船舶重工集团公司第七二三研究所 | But block terminal of remote control area auxiliary power source |
| CN113644556B (en) * | 2021-07-12 | 2023-08-22 | 中国船舶重工集团公司第七二三研究所 | But remote control takes auxiliary power supply's block terminal |
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