CN105388958B - Safe control device for cutting off equipment power supply circuit - Google Patents
Safe control device for cutting off equipment power supply circuit Download PDFInfo
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- CN105388958B CN105388958B CN201510990407.8A CN201510990407A CN105388958B CN 105388958 B CN105388958 B CN 105388958B CN 201510990407 A CN201510990407 A CN 201510990407A CN 105388958 B CN105388958 B CN 105388958B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
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Abstract
The invention provides a safe control device for cutting off an equipment power supply circuit. The safe control device comprises a first channel and a second channel; the first channel comprises a first channel preparing module, a first channel starting module, a first channel self-locking module and a first channel outputting module; the second channel comprises a second channel preparing module, a second channel starting module, a second channel self-locking module and a second channel outputting module; the channels monitor each other and mutually serve as the starting conditions of the internal modules, a mandatory orientation relay is adopted as a relay adopted in the control device, and outputting can be started only after self diagnosis of all the modules is completed. The device can reliably cut off the power supply circuit of electromechanical equipment in time and has the self diagnosis function, dangerous outputting cannot be caused when one fault or fault accumulation occurs, the power supply circuit of the electromechanical equipment can be normally cut off or the power supply circuit of the electromechanical equipment cannot be closed, and therefore safe outputting is guaranteed.
Description
Technical field
The present invention relates to electromechanical equipment dump control field, more particularly to a kind of to be used to cut off device power supply (DPS) loop
Safety control.
Background technology
The raising of industrial production efficiency, it is desirable to the running frequency of electromechanical equipment, running speed more and more higher, the thing followed
Production safety problem is also increasingly severeer.
The cut-out of the electrical source of power of electromechanical equipment typically switchs or realizes using relay little electricity by common electric brake
Control of the stream to high current.But in some more harsh occasions, such as press, injection machine, elevator starts control, relay
The abnormal adhesive of device can cause the misoperation of these electromechanical equipments, error starting, and the short trouble of such as common electric brake switch, lead
Electromechanical equipment power supply is caused to be cut off, these failures can cause extremely serious consequence：Personal injury, production shut-down etc..
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of return for cutting off device power supply (DPS)
The safety control on road, for solving prior art in the misoperation, by mistake that comes because of the abnormal Attraction strap of relay of electromechanical equipment
Start and short circuit when be difficult to cut off the electricity supply loop the problems such as.
For achieving the above object, the present invention adopts below scheme：A kind of security control for cutting off device power supply (DPS) loop
Device, including first passage and second channel；The internal module of the first passage mainly includes passage steady module, passage
One starting module, the self-locking module of passage one and the output module of passage one；The internal module of the second channel mainly includes passage
Two preparation modules, the starting module of passage two, the self-locking module of passage two and the output module of passage two；The passage steady module
The outfan of outfan and the self-locking module of the passage two by with output behind the door to the starting module of the passage one, the passage
The outfan of one starting module is input into the self-locking module of passage one, and the self-locking module outfan of the passage one is input into the passage
One output module；The preparation module outfan of the passage two is with the passage steady module outfan by arriving with output behind the door
The starting module of the passage two, the outfan of the starting module of the passage two is input into the self-locking module of passage two, the passage
Two self-locking module outfans are input into the output module of passage two；The output module of the passage one and the output module of the passage two
Connection.
In an embodiment of the present invention, also including the supply module for providing DC source, the supply module accesses straight
Stream power supply；The input terminal of the first passage includes terminal S11 and S12, and the terminal S11 connects the supply module output
DC source；The input terminal of the second channel includes terminal S52, S34, S21 and S22, described terminal S11, S12, S21
With the button switch that S22 accesses double-contact, the terminal S52 and S34 is connected by wire with the terminal S11 and S12；It is described
Passage steady module connects the terminal S22 by the relay contact J2C in the starting module of the passage one；The passage
Two self-locking modules connect the terminal S22 by relay coil J2A；The preparation module of the passage two and the passage two start
Module is all connected with the terminal S22；The terminal S21 ground connection.
In an embodiment of the present invention, the passage steady module include electrochemical capacitor E2, optocoupler input OP2A and
Resistance R34, the positive pole of optocoupler input OP2A is connected one end of the resistance R34, the other end of the resistance R34 and described
The positive pole of electrochemical capacitor E2 meets the terminal S12；The negative pole of the electrochemical capacitor E2 and the optocoupler are input into the negative pole of OP2A
The terminal S22 is connect by relay contact J2C；The starting module of the passage one include optocoupler output OP1B, audion Q1,
Resistance R6, R10 for being in series and the relay contact J2C, described optocoupler output OP1B one end connects the one of the resistance R6
End, the other end of the resistance R6 connects one end of the resistance R10；The base stage of the audion Q1 is connected to the resistance R6
And the resistance R10 between, one end of the collector connection relay coil J1A of the audion Q1, the relay coil
The other end that the other end of J1A exports OP1B with the optocoupler accesses the terminal S12；The emitter stage of the audion Q1 and
The other end of the resistance R10 is connected to the terminal S22 by the relay contact J2C；The collection of the audion Q1
Electrode is also connected with the self-locking module of the passage one；The self-locking module of the passage one mainly includes current-limiting circuit and relay contact
J1F, the current-limiting circuit outfan connects and be grounded after the relay contact J1F.
In an embodiment of the present invention, the preparation module of the passage two includes that optocoupler is input into OP3A and resistance R8, described
Optocoupler input OP3A negative poles access the terminal S22, and the optocoupler input OP3A positive poles connect one end of the resistance R8, described
The resistance R8 other ends connect the input terminal S52, and connect the self-locking module of passage two by relay contact J2G；Institute
State the self-locking module of passage two including current-limiting circuit, optocoupler input OP1A, resistance R14, successively the diode D9 of positive series connection, D10,
The D11 and relay contact J2G；The current-limiting circuit input is connected with the relay contact J2G, and outfan connects respectively
Connect the optocoupler input OP1A positive poles and the diode D9 positive poles；The optocoupler input OP1A negative poles are gone here and there with the resistance R14
In parallel with described diode D9, D10, D11 after connection, final output end connects the starting module of passage two；The passage two is opened
Dynamic model block includes audion Q5, audion Q7, optocoupler output OP2B, optocoupler output OP3B, resistance R15, R23, R31 and relay
Contact J1B；The emitter stage of the audion Q5 accesses terminal S34, collector connection relay by the relay contact J1B
One end of coil J2A, base stage connects one end of the resistance R23；The other end of the resistance R23 connects the audion Q7's
Colelctor electrode, the base stage of the audion Q7 connects one end of the resistance R31, while connecting the one of the optocoupler output OP2B
End, the other end of the optocoupler output OP2B connects one end that the optocoupler exports OP3B, and the optocoupler output OP3B's is another
One end of the end connection resistance R15, the other end of the resistance R15 connects the emitter stage of the audion Q5；The resistance
The other end of the other end of R31, the emitter stage of the audion Q7 and the relay coil J2A accesses the terminal S22.
In an embodiment of the present invention, described optocoupler input OP1A, OP2A and OP3A are exported respectively with the optocoupler
OP1B, OP2B and OP3B are coupled.
In an embodiment of the present invention, the output module of the passage one and the output module of passage two are by multiple relays
Contact constitutes, and at least includes a normally opened contact in the plurality of relay contact.
In an embodiment of the present invention, the output module of the passage one and the output module of passage two are by relay contact
Composition；The output module of the passage one includes relay contact J1C, J1G, J1E and J1D, and input is connected respectively input
Terminal 41,13,23 and 33；The output module of the passage two includes relay contact J2B, J2F, J2E and J2D, outfan difference
Correspondence connection lead-out terminal 42,14,24 and 34；The outfan of described relay contact J1G, J1E, J1D connect respectively it is described after
The input of appliance contact J2F, J2E and J2D；The outfan of the relay contact J1C connects the relay contact J2B's
Outfan, the input of the relay contact J2B connects the input of the relay contact J1C.
In an embodiment of the present invention, the relay contact J1C and J2B is normally-closed contact, and the relay is touched
Point J1G, J1E, J1D, J2F, J2E and J2D are normally opened contact.
In an embodiment of the present invention, the terminal S21 connects one end of electric fuse, another termination of the electric fuse
Ground.
In an embodiment of the present invention, the voltage of the DC source that the supply module is accessed is 24V.
In sum, the safety control for cutting off device power supply (DPS) loop of the invention includes first passage and second
Passage, two interchannels are monitored mutually, the condition that each other each internal module starts, and the relay that control device inside adopts is strong
System is oriented to relay, and each module must could start output after the completion of self diagnosis, so having the advantages that：
The device can reliably, timely cut off the electric power loop of electromechanical equipment, and the device has self diagnosis work(
Can, when the accumulation that a failure or failure occur can't cause dangerous output, i.e., being capable of normal cutoff electromechanical equipment power supply
The electric power loop of loop or electromechanical equipment can not be closed, it is ensured that Safety output.
Description of the drawings
Fig. 1 is shown as the present invention and shows for cutting off module of the safety control in device power supply (DPS) loop in an embodiment
It is intended to.
Fig. 2 is shown as the present invention for cutting off inside control of the safety control in device power supply (DPS) loop in an embodiment
Logical schematic processed.
Fig. 3 is shown as the present invention for the output module of passage one in the safety control for cutting off device power supply (DPS) loop and leads to
Output block diagram of the output module of road two in an embodiment.
Component label instructions
11 passage steady modules
The starting module of 12 passage one
The self-locking module of 13 passage one
The output module of 14 passage one
The preparation module of 21 passage two
The starting module of 22 passage two
The self-locking module of 23 passage two
The output module of 24 passage two
3 supply modules
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands easily other advantages and effect of the present invention.The present invention can also pass through concrete realities different in addition
The mode of applying is carried out or applies, the every details in this specification can also based on different viewpoints with application, without departing from
Various modifications and changes are carried out under the spirit of the present invention.It should be noted that, in the case where not conflicting, following examples and enforcement
Feature in example can be mutually combined.
It should be noted that the diagram provided in following examples only illustrates in a schematic way the basic conception of the present invention,
Then only show in schema with relevant component in the present invention rather than according to component count during actual enforcement, shape and size and paint
System, it is actual when the implementing kenel of each component, quantity and ratio can be a kind of random change, and its assembly layout kenel also may be used
Can be increasingly complex.
The present invention relates to electromechanical equipment dump control field, is mainly used in electromechanical equipment and breaks down or need urgent
During stopping, the safety of the electrical source of power of electromechanical equipment, the protection person and electromechanical equipment can reliably, be timely cut off.
Fig. 1 is referred to, the present invention is shown as cutting off the safety control in device power supply (DPS) loop in an embodiment
Module diagram, including first passage and second channel；The internal module of the first passage mainly includes passage steady
Module 11, the starting module 12 of passage one, the self-locking module 13 of passage one and the output module 14 of passage one；The inside of the second channel
Module mainly includes the preparation module 21 of passage two, the starting module 22 of passage two, the self-locking module 23 of passage two and passage two output mould
Block 24；The outfan of the outfan of the passage steady module 11 and the self-locking module 23 of the passage two by with export behind the door
To the starting module 12 of the passage one, the outfan of the starting module 12 of the passage one is input into the self-locking module 13 of passage one,
The outfan of one self-locking module of the passage 13 is input into the output module 14 of passage one；The outfan of two preparation module of the passage 21
With the outfan of passage steady module 11 by arriving the starting module 22 of the passage two with output behind the door, the passage two is opened
The outfan of dynamic model block 22 is input into the self-locking module 23 of passage two, and the input of the outfan of two self-locking module of the passage 23 is described logical
The output module 24 of road two；The output module 14 of the passage one and the output module 24 of the passage two connect.
The present invention also includes providing the supply module of DC source for the safety control for cutting off device power supply (DPS) loop
3, the input terminal A1 and A2 of the supply module 3 access DC source, and the supply module 3 is protected by built-in redundancy overvoltage
Protection circuit provides a reliable DC source.The input terminal of the first passage includes terminal S11 and S12, the terminal
S11 connects the DC source of the output of supply module 3；The input terminal of the second channel includes terminal S52, S34, S21
And S22, described terminal S11, S12, S21 and S22 access the button switch of double-contact, the terminal S52 and S34 by wire with
The terminal S11 and S12 connects；The passage steady module 11 is touched by the relay in the starting module 12 of the passage one
Point J2C connects the terminal S22；The self-locking module 2 of the passage two connects the terminal S22 by relay coil J2A；It is described
The preparation module 21 of passage two and the starting module 22 of the passage two are all connected with the terminal S22；The terminal S21 connects electric fuse
One end of F2, the other end ground connection of the electric fuse F2.
Fig. 2 is shown as the present invention for cutting off inside control of the safety control in device power supply (DPS) loop in an embodiment
Logical schematic processed.The passage steady module 11 includes electrochemical capacitor E2, optocoupler input OP2A and resistance R34, the light
One end of the positive pole series connection resistance R34 of coupling input OP2A, the other end of the resistance R34 and the electrochemical capacitor E2 are just
Extremely meet the terminal S12；The negative pole of the negative pole of the electrochemical capacitor E2 and optocoupler input OP2A is touched by relay
Point J2C meets the terminal S22；The starting module 12 of the passage one includes the resistance that optocoupler exports OP1B, audion Q1, is in series
R6, R10 and the relay contact J2C, described optocoupler output OP1B one end connects one end of the resistance R6, the resistance R6
The other end connect one end of the resistance R10；The base stage of the audion Q1 is connected to the resistance R6 and resistance R10
Between, the colelctor electrode of the audion Q1 connects one end of the relay coil J1A, and the relay coil J1A's is another
The other end for exporting OP1B with the optocoupler is held to access the terminal S12；The emitter stage and the resistance of the audion Q1
The other end of R10 is connected to the terminal S22 by the relay contact J2C；The colelctor electrode of the audion Q1 also connects
Connect the self-locking module 13 of the passage one；The self-locking module 13 of the passage one mainly includes current-limiting circuit and relay contact J1F, institute
State current-limiting circuit outfan and connect ground connection after the relay contact J1F.
The preparation module 21 of the passage two includes that optocoupler is input into OP3A and resistance R8, and the optocoupler input OP3A negative poles are accessed
The terminal S22, the optocoupler input OP3A positive poles connect one end of the resistance R8, and the resistance R8 other ends connection is described
Input terminal S52, and the self-locking module 23 of passage two is connected by relay contact J2G；The self-locking module 23 of the passage two
Including current-limiting circuit, optocoupler input OP1A, successively resistance R14, positive diode D9, D10, D11 for connecting and the relay
Contact J2G；The current-limiting circuit input is connected with the relay contact J2G, and outfan connects respectively the optocoupler input
OP1A positive poles and the diode D9 positive poles；The optocoupler is input into after OP1A negative poles are connected with the resistance R14 and two pole
Pipe D9, D10, D11 are in parallel, and final output end connects the starting module 22 of passage two；The starting module 22 of the passage two includes
Audion Q5, audion Q7, optocoupler output OP2B, optocoupler output OP3B, resistance R15, R23, R31 and relay contact J1B；Institute
The emitter stage for stating audion Q5 accesses terminal S34 by the relay contact J1B, collector connection relay coil J2A's
One end, base stage connects one end of the resistance R23；The other end of the resistance R23 connects the colelctor electrode of the audion Q7, institute
The base stage for stating audion Q7 connects one end of the resistance R31, while connect one end that the optocoupler exports OP2B, the optocoupler
The other end of output OP2B connects one end that the optocoupler exports OP3B, and the other end of the optocoupler output OP3B connects the electricity
One end of resistance R15, the other end of the resistance R15 connects the emitter stage of the audion Q5；The other end of the resistance R31,
The other end of the emitter stage of the audion Q7 and the relay coil J2A accesses the terminal S22.
Described optocoupler input OP1A, OP2A and OP3A are coupled respectively with the optocoupler output OP1B, OP2B and OP3B.
In the embodiment, described optocoupler output OP1B, OP2B and OP3B are comprising photosensitive three pole of an opto-electronic conversion
The diode of pipe, an audion for amplifying signal and a rectification；The base stage of the audion connects the phototriode
Emitter stage, colelctor electrode connects the colelctor electrode of the phototriode, while connect the negative pole of the diode, emitter stage connection
The positive pole of the diode.
In the embodiment, the output module 14 of the passage one and the output module 24 of passage two are by multiple relay contacts
Composition, and at least include a normally opened contact in the plurality of relay contact.
Fig. 3 is shown as the present invention for the output module of passage one in the safety control for cutting off device power supply (DPS) loop and leads to
Output block diagram of the output module of road two in an embodiment, the output module 14 of the passage one and the output module 24 of passage two by
Relay contact is constituted；The output module 14 of the passage one includes relay contact J1C, J1G, J1E and J1D, input difference
Correspondence connection input terminal 41,13,23 and 33；The output module 24 of the passage two include relay contact J2B, J2F, J2E and
J2D, outfan is connected respectively lead-out terminal 42,14,24 and 34；The outfan of described relay contact J1G, J1E, J1D
Connect the input of described relay contact J2F, J2E and J2D respectively；The outfan connection of the relay contact J1C is described
The outfan of relay contact J2B, the input of the relay contact J2B connects the input of the relay contact J1C.
In the embodiment, the relay contact J1C and J2B is normally-closed contact, the relay contact J1G,
J1E, J1D, J2F, J2E and J2D are normally opened contact, and the voltage of the DC source that the supply module 3 is accessed is 24V.
The present invention is used for the operation principle of the safety control for cutting off device power supply (DPS) loop：Safety control inside is every
Individual module has two kinds of output states：When input condition is " 1 " and the inside modules do not have failure, module is output as " 1 "；Its
He is output as " 0 " situation module.The output signal of the monitor channel steady module 11 of two starting module of passage 22, when passage surely
When the standby output signal of module 11 is " 1 ", the ability normal work of two starting module of passage 22, the work of two self-locking module of subsequent passage 23
Make, after the normal work of two self-locking module of passage 23, one " 1 " signal of feedback starts mould to the starting module 12 of passage one, passage one
Block 12 is monitored after the signal, is started working, and the self-locking module 13 of passage one is worked, the output module 14 of passage one and passage
Two output modules 24 are constituted by relay contact, constitute a redundant safety output.Below to the safety of safety control
Output loop closure, cut-out and the diagnosis and process of failure are analyzed.
1st, the Safety output circuit closed of safety control of the present invention is analyzed as follows：
(1) on after electricity, button K1 closures, DC source VCC is by input terminal S11 and the input terminal S12 loops
Electrochemical capacitor E2 is charged, the capacitance of electrochemical capacitor E2 typically takes more than 200uF, the capacitance can be caused in electric discharge,
There is the electricity of abundance so that subsequent conditioning circuit starts.
(2) after button K1 closures, optocoupler input OP2A and optocoupler input OP3A obtain electric, through coupling so that optocoupler is exported
OP2B and optocoupler output OP3B conductings, and then audion Q7 conductings, audion Q5 conductings so that relay coil J2A obtains electric, after
The relevant contacts action of electrical equipment J2.
(3) the relevant contacts action of relay J2, the normally opened relay contact J2G closings of contact, with current-limiting circuit and relay
Device coil J2A constitutes self-locking circuit, and second channel output loop starts.
(4) after the action of relay J2 relevant contacts, normally closed relay contact J2C disconnects, and optocoupler input OP1A obtains electric, is electrolysed
Electric capacity E2 discharges, optocoupler output OP1B conductings, audion Q1 conductings so that relay coil J1A obtains electric, the correlation of relay J1
Contact action.
(5) the relevant contacts action of relay J1, normally opened relay contact J1F closures, with current-limiting circuit and relay line
Circle J1A constitutes self-locking circuit, and first passage output loop starts.
(6) second channel output loop starts, and first passage output loop starts, equipment safety output loop closure.
2nd, Safety output loop analysis is cut off as follows：
(1) K1 is double-contact button, and when K1 is pressed, contact portion disconnects, when K1 is discharged, contact portion closure.
(2) when pressing K1, the connection of input terminal S12 and DC source VCC disconnects, relay coil J1A dead electricity, passage
One output module 14 disconnects.
(3) when pressing K2, the connection of input terminal S22 and earth terminal GND disconnects, relay coil J2A dead electricity, passage two
Output module 24 disconnects.
(4) first passage and second channel are Redundancy Design, disconnect any one module, can shearing device Safety output
Loop.
3rd, the diagnosis of failure and Treatment Analysis are as follows：
(1) the contact long-time of relay occurs contact adhesion phenomenon by high current, and the safety device of the present invention is adopted
Forced guiding type relay, when normally opened contact occurs contact adhesion phenomenon, other contacts of the relay are for example normally closed to touch
Point, necessarily in normally open.When boning such as relay J1D contacts, relay contact J1B is off.Press
After K1 buttons, the output of second channel can normally disconnect, it is ensured that safety control being capable of normal cutoff equipment current supply circuit.
During release K1, the starting module 22 of passage two can diagnose relay contact J1B and be off, and second channel output cannot be closed
Close, it is ensured that Safety output.The analysis of second channel contact adhesion is similar with the analysis of first passage contact adhesion, repeats no more.
(2) the abnormal adhesive failure of relay, similar with above-mentioned analysis, repeats no more.
(3) when button wire is short-circuited failure because of reasons such as broken skins so that DC source VCC and earth terminal GND
It is short-circuited, immediate current is larger, resettable fuse F2 can disconnect immediately so that the output of second channel disconnects, cut-out dress
The Safety output loop put.
(4) when the internal component of safety control breaks down, because using Fail-safe methods for designing, appointing
The failure of meaning device can be caused after K1 buttons are pressed, the output loop of device is cut-off, and part of devices is analyzed as follows：
1. the open circuit short trouble of electrochemical capacitor E2, when pressing K1, relay coil J1A and J2A dead electricity, device is exported back
Road can be to sever immediately upon impact by the firing pin.When starting next time, the circuit of the starting module 12 of passage one can diagnose the failure, passage one
The circuit of starting module 12 can not start, and device output loop can not be closed.
2. optocoupler is input into the open circuit short trouble of OP2A, when pressing K1, relay coil J1A and J2A dead electricity, and device output
Loop can be to sever immediately upon impact by the firing pin.When starting next time, the circuit of the starting module 22 of passage two can diagnose the failure, passage
The circuit of two starting modules 22 can not start, and device output loop can not be closed.
3. optocoupler exports the open fault of OP1B, when pressing K1, relay coil J1A, J2A dead electricity, and device output loop
Can be to sever immediately upon impact by the firing pin.When starting next time, the circuit of one starting module of passage 12 can diagnose the failure, and passage one starts
The circuit of module 12 can not start, and device output loop can not be closed.
4. optocoupler exports the short trouble of OP1B, when pressing K1, relay coil J1A, J2A dead electricity, and device output loop
Can be to sever immediately upon impact by the firing pin.
5. the open fault of audion Q1, when pressing K1, relay coil J1A, J2A dead electricity, device output loop can
It is to sever immediately upon impact by the firing pin.When starting next time, the circuit of one starting module of passage 12 can diagnose the failure, the starting module of passage one
12 circuits can not start, and device output loop can not be closed.
6. the short trouble of audion Q1, when pressing K1, relay coil J1A, J2A dead electricity, device output loop can
It is to sever immediately upon impact by the firing pin.
7. the accident analysis of second channel components and parts is similar with first passage.
As described above, the safety control for cutting off device power supply (DPS) loop of the present invention, including first passage and
Two passages, two interchannels are monitored mutually, the condition that each other each internal module starts, the relay that control device inside adopts for
Forced guiding relay, each module must could start output after the completion of self diagnosis.The safety control can reliably and
When ground cut-out electromechanical equipment electric power loop, and the device has self-diagnostic function, when there is a failure or failure
Accumulation can't cause dangerous output, that is, the electric power loop for being capable of normal cutoff electromechanical equipment electric power loop or electromechanical equipment can not
Closure, it is ensured that Safety output.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial exploitation value
Value.
The principle and its effect of above-described embodiment only illustrative present invention, it is of the invention not for limiting.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and the scope without prejudice to the present invention to above-described embodiment.Cause
This, such as those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of safety control for cutting off device power supply (DPS) loop, it is characterised in that logical including first passage and second
Road；
The internal module of the first passage mainly includes passage steady module, the starting module of passage one, the self-locking mode of passage one
Block and the output module of passage one；
The internal module of the second channel mainly includes the preparation module of passage two, the starting module of passage two, the self-locking mode of passage two
Block and the output module of passage two；
The outfan of the outfan of the passage steady module and the self-locking module of the passage two by with output behind the door to institute
The starting module of passage one is stated, the outfan of the starting module of the passage one is input into the self-locking module of passage one, the passage one
Self-locking module outfan is input into the output module of passage one；
The preparation module outfan of the passage two is with the passage steady module outfan by leading to described with output behind the door
The starting module of road two, the outfan of the starting module of the passage two is input into the self-locking module of passage two, the self-locking of the passage two
Module outfan is input into the output module of passage two；
The output module of the passage one and the output module of the passage two connect.
2. the safety control for cutting off device power supply (DPS) loop according to claim 1, it is characterised in that also include
The supply module of DC source is provided, the supply module accesses DC source；
The input terminal of the first passage includes terminal S11 and S12, and the terminal S11 connects the supply module output
DC source；The input terminal of the second channel include terminal S52, S34, S21 and S22, described terminal S11, S12, S21 and
S22 accesses the button switch of double-contact, and the terminal S52 is connected by wire with the terminal S11, and the terminal S34 passes through
Wire is connected with the terminal S12；The passage steady module is by the relay contact in the starting module of the passage one
J2C connects the terminal S22；The self-locking module of the passage two connects the terminal S22 by relay coil J2A；It is described logical
The preparation module of road two and the starting module of the passage two are all connected with the terminal S22；The terminal S21 ground connection.
3. the safety control for cutting off device power supply (DPS) loop according to claim 2, it is characterised in that
The passage steady module includes electrochemical capacitor E2, optocoupler input OP2A and resistance R34, the optocoupler input OP2A's
The positive pole of one end of the positive pole series connection resistance R34, the other end of the resistance R34 and the electrochemical capacitor E2 connects the end
Sub- S12；The negative pole of the negative pole of the electrochemical capacitor E2 and optocoupler input OP2A connects the end by relay contact J2C
Sub- S22；
The starting module of the passage one includes optocoupler output OP1B, audion Q1, resistance R6, R10 for being in series and the relay
Device contact J2C, described optocoupler output OP1B one end connects one end of the resistance R6, and the other end connection of the resistance R6 is described
One end of resistance R10；The base stage of the audion Q1 is connected between the resistance R6 and the resistance R10, the audion
One end of the collector connection relay coil J1A of Q1, the other end and the optocoupler of the relay coil J1A export OP1B
The other end access the terminal S12；The other end of the emitter stage of the audion Q1 and the resistance R10 is by described
Relay contact J2C is connected to the terminal S22；
The colelctor electrode of the audion Q1 is also connected with the self-locking module of the passage one；
The self-locking module of the passage one mainly includes current-limiting circuit and relay contact J1F, the current-limiting circuit outfan connection
It is grounded after the relay contact J1F.
4. the safety control for cutting off device power supply (DPS) loop according to claim 3, it is characterised in that
The preparation module of the passage two includes that optocoupler is input into OP3A and resistance R8, and the optocoupler input OP3A negative poles access the end
Sub- S22, the optocoupler input OP3A positive poles connect one end of the resistance R8, and the resistance R8 other ends connect the input
Sub- S52, and the self-locking module of passage two is connected by relay contact J2G；
The self-locking module of the passage two includes current-limiting circuit, optocoupler input OP1A, resistance R14, the diode of positive series connection successively
D9, D10, D11 and the relay contact J2G；The current-limiting circuit input is connected with the relay contact J2G, output
End connects respectively the optocoupler input OP1A positive poles and the diode D9 positive poles；The optocoupler input OP1A negative poles and the electricity
In parallel with described diode D9, D10, D11 after resistance R14 series connection, final output end connects the starting module of passage two；
The starting module of the passage two includes audion Q5, audion Q7, optocoupler output OP2B, optocoupler output OP3B, resistance
R15, R23, R31 and relay contact J1B；The emitter stage of the audion Q5 accesses terminal by the relay contact J1B
S34, one end of collector connection relay coil J2A, base stage connects one end of the resistance R23；The resistance R23's is another
The colelctor electrode of the end connection audion Q7, the base stage of the audion Q7 connects one end of the resistance R31, while connecting institute
One end that optocoupler exports OP2B is stated, the other end of the optocoupler output OP2B connects one end that the optocoupler exports OP3B, described
The other end of optocoupler output OP3B connects one end of the resistance R15, and the other end of the resistance R15 connects the audion Q5
Emitter stage；The other end of the other end of the resistance R31, the emitter stage of the audion Q7 and the relay coil J2A
Access the terminal S22.
5. the safety control for cutting off device power supply (DPS) loop according to claim 4, it is characterised in that the light
Coupling input OP1A, OP2A and OP3A are coupled respectively with the optocoupler output OP1B, OP2B and OP3B.
6. the safety control for cutting off device power supply (DPS) loop according to claim 5, it is characterised in that described logical
The output module of road one and the output module of passage two are constituted by multiple relay contacts, and in the plurality of relay contact at least
Including a normally opened contact.
7. the safety control for cutting off device power supply (DPS) loop according to claim 6, it is characterised in that described logical
The output module of road one includes relay contact J1C, J1G, J1E and J1D, and input is connected respectively input terminal 41,13,23
With 33；
The output module of the passage two includes relay contact J2B, J2F, J2E and J2D, and outfan is connected respectively outfan
Son 42,14,24 and 34；
The outfan of described relay contact J1G, J1E, J1D connects respectively the input of described relay contact J2F, J2E and J2D
End；The outfan of the relay contact J1C connects the outfan of the relay contact J2B, the relay contact J2B's
Input connects the input of the relay contact J1C.
8. the safety control for cutting off device power supply (DPS) loop according to claim 7, it is characterised in that it is described after
Appliance contact J1C and J2B are normally-closed contact, and described relay contact J1G, J1E, J1D, J2F, J2E and J2D are touched for normally opened
Point.
9. the safety control for cutting off device power supply (DPS) loop according to claim 2, it is characterised in that the end
Sub- S21 connects one end of electric fuse, the other end ground connection of the electric fuse.
10. the safety control for cutting off device power supply (DPS) loop according to claim 2, it is characterised in that described
The voltage of the DC source that supply module is accessed is 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990407.8A CN105388958B (en) | 2015-12-24 | 2015-12-24 | Safe control device for cutting off equipment power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990407.8A CN105388958B (en) | 2015-12-24 | 2015-12-24 | Safe control device for cutting off equipment power supply circuit |
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| CN105388958A CN105388958A (en) | 2016-03-09 |
| CN105388958B true CN105388958B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510990407.8A Active CN105388958B (en) | 2015-12-24 | 2015-12-24 | Safe control device for cutting off equipment power supply circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112855436B (en) * | 2021-03-25 | 2022-04-19 | 远景能源有限公司 | Safety device for wind driven generator |
| CN113110019B (en) * | 2021-04-19 | 2023-01-10 | 苏州科诺机器人有限责任公司 | Universal multifunctional double-circuit redundant output circuit |
| CN114488768B (en) * | 2022-01-11 | 2023-12-08 | 深圳市大族机器人有限公司 | Safety control circuit, control method and servo driver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2773409A1 (en) * | 1998-01-07 | 1999-07-09 | Honeywell | POSITIVE SECURITY CONTROL DEVICE |
| DE102005014125A1 (en) * | 2005-03-22 | 2006-09-28 | Pilz Gmbh & Co. Kg | Safety switching device for the safe switching off of an electrical consumer |
| DE102006061476B3 (en) * | 2006-12-23 | 2008-06-26 | Berger Lahr Gmbh & Co. Kg | Electric control |
| CN103050337B (en) * | 2012-12-26 | 2015-06-10 | 中国航天时代电子公司 | Small-sized multichannel output safety relay |
| CN104238475B (en) * | 2013-06-18 | 2018-05-01 | 上海辰竹仪表有限公司 | gas monitoring system based on Zigbee network |
| CN205334279U (en) * | 2015-12-24 | 2016-06-22 | 上海辰竹仪表有限公司 | A safety control for cutting apparatus power return circuit |
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