CN202486571U - PLC (Programmable Logic Controller)-control-based timing power-on/off device for machine room - Google Patents
PLC (Programmable Logic Controller)-control-based timing power-on/off device for machine room Download PDFInfo
- Publication number
- CN202486571U CN202486571U CN 201220108081 CN201220108081U CN202486571U CN 202486571 U CN202486571 U CN 202486571U CN 201220108081 CN201220108081 CN 201220108081 CN 201220108081 U CN201220108081 U CN 201220108081U CN 202486571 U CN202486571 U CN 202486571U
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- plc
- machine room
- switch
- relay
- programmable logic
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- Expired - Fee Related
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Abstract
The utility model discloses a PLC (Programmable Logic Controller)-control-based timing power-on/off device for a machine room. The PLC-control-based timing power-on/off device comprises a PLC, a first button switch, a second button switch, a plurality of relays and a plurality of parallel branch units, wherein one terminals of the first button switch and the second button switch are respectively connected to a first input terminal and a second input terminal of the PLC, the other terminals of the first button switch and the second button switch are connected to the common (COM) terminal of the PLC, one terminals of coils of the relays are connected to output terminals of the PLC, and the other terminals of the coils of the relays are connected with a mains supply through a fuse; and the branch unit connected with the mains supply comprises a group of computers, a relay switch and a fuse FU which are in sequentially series connection, and the relay switch is in parallel connection with the two terminals of an air switch QF. The device can automatically carry out power-on/off operation on the machine room according to the service conditions of the machine room, so that the manual operation is replaced by automatic control, and the electricity of the machine room is saved.
Description
Technical field
The utility model relates to a kind of timing break-make electric installation, relates in particular to a kind of machine room timing break-make electricity based on PLC control and puts, and belongs to PLC control technology field.
Background technology
All there is machine room in each school, and generally all be obsolete machine room evening of school, if computer is leading to electricity evening, even computer is not opened, computer also can expend many electricity, and this makes white being wasted in a lot of Dianbais.
The utility model content
The utility model purpose be to the defective that prior art exists provide a kind of machine room based on PLC control regularly the break-make electricity put, to certain time electricity in evening, the power supply in automatic cutting off table room, to second day morning before class connect machine room again automatically;
The utility model is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of machine room timing break-make electric installation based on PLC control; The tributary unit that comprises Programmable Logic Controller PLC, first, second pushbutton switch, a plurality of relay and a plurality of parallel connections; Said first, second pushbutton switch one end is connected on respectively on first, second input end of PLC; Said first, second pushbutton switch other end is connected on the common port COM end of PLC, and coil one end of said relay is connected with the output terminal of Programmable Logic Controller PLC, and the other end is electrically connected with the city through fuse; The said tributary unit that inserts civil power comprises one group of computer, relay switch and the fuse F U of serial connection successively, and said relay switch is connected in parallel on air switch QF two ends.
Said first pushbutton switch is closed, and after second pushbutton switch broke off, said Programmable Logic Controller PLC was in running order.
Said first pushbutton switch breaks off, and after the second pushbutton switch closure, said Programmable Logic Controller PLC is in off working state.
The beneficial effect of the utility model: this device can carry out make-break operation to machine room automatically according to the operating position of machine room.Automatically control has replaced manually-operated, has saved machine room.
Description of drawings
Fig. 1 is the master control drawing of the utility model;
Fig. 2 is the branch road control chart of the utility model;
Among the figure, 1, relay coil KM1,2, relay coil KM2,3, relay coil KM3,4, relay coil KM4,5, relay switch K1,6, relay switch K2,7, relay switch K3,8, relay switch K4.
Embodiment
Among Fig. 1 and Fig. 2, one of play button switch S B1 is connected on input port X1, and the other end is connected on common port COM end, and one of stop button switch S B2 is connected on Programmable Logic Controller PLC input port X2, and the other end is connected on common port COM end.The output terminal Y1 of Programmable Logic Controller PLC connects the coil KM1 1 of relay 1, and output terminal Y2 connects relay coil KM2 2, and output terminal Y3 connects relay coil KM3 3, and output terminal Y4 connects relay coil KM4 4.Connect with fuse F U5 in these four relay parallel connection output backs, one of 220V power supply is connected on COM1, and one connects fuse F U5.
Be divided into several groups to the computer of machine room, I give an example with 4 groups here, have so just formed 4 branch roads, and each branch road all is to connect with fuse F U, be in series with each group computer after relay switch K parallel connection air switch QF is arranged.After being connected in parallel to each other, receive on the alternating current of 220V 4 branch roads.Fuse F U plays overload protective function to each branch road, and air switch QF is a hand control switch, when so PLC occurs normal, when relay switch K can not be closed, gives each branch road break-make through manual control air switch QF.
Automatic control process: time point and withdraw from service time point that general machine room is brought into use are fixed, and are set to these two time points in the program of PLC, when the time point of bringing into use when the time and the machine room of setting of PLC internal clocking is consistent; PLC exports, when first Y1 has output, relay coil KM1 1; Relay coil KM1 1 electric after, relay switch K1 5 closures, one group of computer expert of first branch road powers on; Y2 had output after Y1 exported for 1 second, and in like manner relay coil KM2 2 must be electric, relay switch K2 6 closures; One group of computer expert of second branch road powers on, and Y3 had output after Y2 exported for 1 second, relay coil KM3 3; Relay coil KM3 3 electric after, relay switch K3 7 closures make one group of computer expert of the 3rd branch road power on, Y4 had output after Y3 exported for 1 second; Relay coil KM4 4 electric, relay coil KM4 4 electric after, relay switch K4 8 closures make one group of computer expert of the 4th branch road power on.Why employing divides into groups to switch on; Rather than all lead to for machine room to power on quickly; Be that immediate current is bigger quite a few times than running current because the no power state is arranged to moment of "on" position when computer, for fear of the impact of the big electric current of moment energising to components and parts; Prevent overload, so adopt the grouping step mode.
When consistent with the machine room withdraw from service time point of setting, PLC stops output, makes Y4 stop to export earlier, relay coil KM4 4 dead electricity, relay switch K4 8 disconnections, the computer dead electricity of the 4th branch road with time that should the PLC internal clocking.After Y4 stopped to export 1 second, Y3 stopped output, in like manner, made the computer dead electricity of the 3rd branch road.After Y3 stopped to export 1 second, Y2 stopped output, in like manner, made the computer dead electricity of second branch road.After Y2 stopped to export 1 second, Y1 stopped output, in like manner, makes the computer dead electricity of the branch road of winning.Why employing divides into groups to cut off the power supply; Rather than all cut off the power supply for machine room quickly; Be because when computer from "on" position during quickly to off-position, immediate current is also big quite a few times than running current, for fear of the impact to components and parts of the big electric current of instant cut-off; Prevent overload, so adopt the grouping step mode.
When needs used the automatic control function of PLC, closed play button switch S B1 opened stop button switch S B2, when PLC detects X1 input signal is arranged, and X2 does not have input signal, and PLC is in running order.In the time need not using the automatic control function of PLC, open play button switch S B1, closed stop button switch S B2 does not have input signal when PLC detects X1, and X2 has input signal, and PLC is in off working state.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. one kind based on the machine room of PLC control break-make electric installation regularly; It is characterized in that; The tributary unit that comprises Programmable Logic Controller PLC, first, second pushbutton switch, a plurality of relay and a plurality of parallel connections; Said first, second pushbutton switch one end is connected on respectively on first, second input end of PLC; Said first, second pushbutton switch other end is connected on the common port COM end of PLC, and coil one end of said relay is connected with the output terminal of Programmable Logic Controller PLC, and the other end is electrically connected with the city through fuse; The said tributary unit that inserts civil power comprises one group of computer, relay switch and the fuse F U of serial connection successively, and said relay switch is connected in parallel on air switch QF two ends.
2. a kind of machine room timing break-make electric installation based on PLC control according to claim 1 is characterized in that said first pushbutton switch is closed, and after second pushbutton switch broke off, said Programmable Logic Controller PLC was in running order.
3. a kind of machine room timing break-make electric installation based on PLC control according to claim 1 is characterized in that said first pushbutton switch breaks off, and after the second pushbutton switch closure, said Programmable Logic Controller PLC is in off working state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108081 CN202486571U (en) | 2012-03-20 | 2012-03-20 | PLC (Programmable Logic Controller)-control-based timing power-on/off device for machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108081 CN202486571U (en) | 2012-03-20 | 2012-03-20 | PLC (Programmable Logic Controller)-control-based timing power-on/off device for machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486571U true CN202486571U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220108081 Expired - Fee Related CN202486571U (en) | 2012-03-20 | 2012-03-20 | PLC (Programmable Logic Controller)-control-based timing power-on/off device for machine room |
Country Status (1)
| Country | Link |
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| CN (1) | CN202486571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384055A (en) * | 2013-06-28 | 2013-11-06 | 上海汇众汽车装备制造有限公司 | Short circuit protection method using common luminous body for replacing relay |
-
2012
- 2012-03-20 CN CN 201220108081 patent/CN202486571U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384055A (en) * | 2013-06-28 | 2013-11-06 | 上海汇众汽车装备制造有限公司 | Short circuit protection method using common luminous body for replacing relay |
| CN103384055B (en) * | 2013-06-28 | 2016-08-10 | 上海汇众汽车装备制造有限公司 | A kind of short-circuit protection method using common luminous body to replace relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130320 |