CN106451360B - Brake motor monitoring and line real time diagnosis failed equipment - Google Patents
Brake motor monitoring and line real time diagnosis failed equipment Download PDFInfo
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- CN106451360B CN106451360B CN201611003513.3A CN201611003513A CN106451360B CN 106451360 B CN106451360 B CN 106451360B CN 201611003513 A CN201611003513 A CN 201611003513A CN 106451360 B CN106451360 B CN 106451360B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
- H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Electric Motors In General (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Brake motor monitoring and line real time diagnosis failed equipment, including first order motor-drive circuit, second level contactor low-voltage control circuit, the third level manually boot circuit, fourth stage temperature alarm mechanism, level V contactor fault diagnosis mechanism, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad；The normally opened and normally-closed contact that assists using contactor and electrothermal relay is the mirror of major loop, only need detection subsidiary loop normally opened contact and the respective connection relationship of normally-closed contact, it may know that the operating status of major loop, if the logical relation between two normally opened contacts and two normally-closed contacts of subsidiary loop extremely can decision device disabler simultaneously, diagnostic signal is transmitted to master control borad, master control borad is communicated by host computer again, reminds operator to in-situ processing abnormal conditions.
Description
Technical field
The present invention relates to be monitored online diagnostic techniques field more particularly to a kind of brake motor monitoring and examine in real time online
Disconnected failed equipment.
Background technique
When being in on-position due to brake, vibration is more violent, and load is heavier；The building ring of some brakes simultaneously
Border is more special, and if dust is larger, brake is in from the farther away place of monitoring room, and long-term work is in outdoor, so as to system
The state on line real-time monitoring of dynamic device motor becomes the direction of New Brake development.
On the other hand, brake is generally in intermittent working condition, load weight when work, the most of the time be in
Life state, at the same it is very high to the requirement of the security reliability of brake operation, and this is related to the people's lives and property safety, then right
The monitoring of brake motor status has the realistic meaning required very much.
Overvoltage, mistake when major part designer only rests on to braking motor work the monitoring of brake motor at present
Electric current, in terms of the monitoring of overload, designer's default brake be in normal operating conditions, that is, assumes brake motor and its attached
Belong in the case that device is in state can be used normally, but the most brakes time is standby and local environment
It is relatively severe, it is likely that before brake operation, brake motor or its attached device are no longer valid；In order to improve braking as far as possible
The security and reliability of device work finds that the security risk of brake component failure that may be present is most important in advance.
Summary of the invention
Technical problem solved by the invention is to provide brake motor monitoring and line real time diagnosis failed equipment, with
Solve the disadvantage in above-mentioned background technique.
Technical problem solved by the invention is realized using following technical scheme:
Brake motor monitoring and line real time diagnosis failed equipment, including first order motor-drive circuit, the second level connect
Tentaculum low-voltage control circuit, the third level manually boot circuit, fourth stage temperature alarm mechanism, level V contactor fault diagnosis machine
Structure, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad, wherein first order motor
Driving circuit manually booted respectively with second level contactor low-voltage control circuit, the third level circuit, fourth stage temperature alarm mechanism,
Level V contactor fault diagnosis mechanism, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism, master
It controls plate and motor connection, second level contactor low-voltage control circuit manually boots circuit, level V contactor with the third level respectively
Fault diagnosis mechanism, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad connection, the
Three-level manually boots circuit and connect with master control borad, fourth stage temperature alarm mechanism and the 6th grade of radiator fan driving circuit, the 7th
Grade electrothermal relay fault diagnosis mechanism and master control borad connection, level V contactor fault diagnosis mechanism are connect with master control borad, and the 6th
Grade radiator fan driving circuit is connect with motor, master control borad；Simultaneously first order motor-drive circuit include by contactor and heat after
The motor-drive circuit of electric appliance composition, second level contactor low-voltage control circuit include by relay, triode, diode, steady
The low-voltage control circuit that pressure pipe, resistance, contactor control loop coil and thermal relay normally closed contact form, the third level are opened manually
Dynamic circuit includes being opened by the motor that relay, diode, self-locking button switch and electrothermal relay subsidiary loop normally-closed contact form
Dynamic to open circuit, fourth stage temperature alarm mechanism includes resistor network and electrothermal relay auxiliary normally opened contact, level V contactor
Fault diagnosis mechanism includes resistance, XOR gate, contactor auxiliary normally-closed contact and contactor auxiliary normally opened contact, the 6th grade of heat dissipation
Fan drive circuit includes relay, triode, resistance, diode and voltage-stabiliser tube, the 7th grade of electrothermal relay fault diagnosis mechanism
Including diode, triode, voltage-stabiliser tube, resistance, XOR gate and electrothermal relay normally opened contact and normally-closed contact.
In the present invention, each section specific structure is as follows:
The first order motor-drive circuit includes contactor and electrothermal relay, wherein three of contactor major loop are defeated
Enter end connection input three-phase alternating-current supply firewire, three output ends of contactor major loop connect three of electrothermal relay major loop
Input terminal, the three-phase power input end of three output ends connection three-phase motor of electrothermal relay major loop, the shell of three-phase motor
Connect the ground terminal of three-phase alternating-current supply input terminal；The reference of the second normally opened contact connection light current power supply of contactor subsidiary loop
Potential point；The one of 9th resistance of the first normally opened contact connection level V contactor fault diagnosis mechanism of contactor subsidiary loop
Behind end, it is then connected to the crus secunda input signal end of the first integrated circuit XOR gate, the other end connection light current electricity of the 9th resistance
Source；No. second normally-closed contact of contactor subsidiary loop connects light current power supply, the number one normally-closed contact of contactor subsidiary loop
Connect one end of the 8th resistance, the reference voltage point of the other end connection light current power supply of the 8th resistance；Contactor control coil
The 4th foot, the negative terminals of first relay of positive terminals connection second level contactor low-voltage control circuit connect light current power supply
Reference voltage point；
The second level contactor low-voltage control circuit includes the first relay, the 5th resistance, first diode, the six or two
Pole pipe, the 7th diode, the 8th diode, the 11st diode, the 12nd diode, the 4th voltage-stabiliser tube, the second triode,
In, the electrode input end of the 4th foot of the first relay connection contactor control coil, the third foot connection of the first relay the
The number one normally-closed contact of electrothermal relay subsidiary loop, the other end of thirteenth resistor and the tenth are connected behind one end of 13 resistance
The second integrated circuit is reconnected after connecting at one end three of pressure stabilizing tube cathode and the 14th resistance together or the first foot signal of door is defeated
Enter end；The coils from parallel connection of coils of first diode and the first relay, and the negative pole end of first diode and the first relay coil
Positive terminal is separately connected 24V positive pole, reconnects after the negative pole end connection of first diode anode and the first relay coil
The collector of second triode, the second transistor emitter ground connection, one end of the second transistor base the 5th resistance of connection, the 5th
The other end of resistance, the 4th pressure stabilizing tube cathode, the 6th diode cathode, the 7th diode cathode, the 8th diode cathode, the tenth
It is connected to a bit at one diode cathode and the 12nd diode cathode seven, the 4th voltage-stabiliser tube plus earth, the 6th diode sun
The motor control signal output end of pole connection master control borad；7th diode anode, the second integrated circuit with or door crus secunda, the
One end of ten resistance, one end of the 6th resistance, connect at the 5th pressure stabilizing tube cathode five after reconnect master control borad temperature alarm it is defeated
Enter end, connects at No. second normally opened contact three of the other end of the tenth resistance, one end of second resistance and electrothermal relay subsidiary loop
It is connected to a bit, the other end ground connection of second resistance, the other end of the 6th resistance connects third transistor base stage；5th voltage-stabiliser tube sun
Pole ground connection；The anode connection third level of 8th diode manually boots the third foot of the second relay of circuit；11st pole
Tube anode connect the second integrated circuit of the 7th grade of electrothermal relay fault diagnosis mechanism with or door third foot output end；12nd
Diode anode connects the third foot output end of the first integrated circuit XOR gate of level V contactor fault diagnosis mechanism；
It includes the second relay, the second diode, the first self-locking button switch, heat guarantor that the third level, which manually boots circuit,
Protect normally-closed contact, the 4th resistance of relay subsidiary loop；Wherein, one end of the first self-locking button switch and the second diode yin
Pole is separately connected 24V power supply, and the other end of the second diode anode ground connection, the first self-locking button switch connects the second relay line
5th foot of circle, the 4th foot ground connection of the second relay coil, after one end connection of the third foot, the 4th resistance of the second relay
Reconnect master control borad manually boots confirmation feedback input end, and the other end of the 4th resistance connects 5V power supply, the second relay
First foot ground connection, the 6th foot of the second relay connect 24V power supply, and one group of normally opened contact connects electrothermal relay in the second relay
No. second normally-closed contact of subsidiary loop；
Fourth stage temperature alarm mechanism includes second resistance, the tenth resistance, hot protective relay subsidiary loop,
In, the first normally opened contact of hot protective relay subsidiary loop connects 5V positive pole, and the of hot protective relay subsidiary loop
One end of the tenth resistance is reconnected after the connection of one end of two normally opened contacts and second resistance；The other end of tenth resistance is separately connected
The temperature alarm input terminal of master control borad, the 7th grade of electrothermal relay fault diagnosis mechanism the second integrated circuit with or door second
5th pressure stabilizing tube cathode of foot, the 6th grade of radiator fan driving circuit, the other end ground connection of second resistance；
The level V contactor fault diagnosis mechanism includes contactor subsidiary loop normally-closed contact and normally opened contact, the 8th
Resistance, the 9th resistance and the first integrated circuit XOR gate；Wherein, No. second normally-closed contact of contactor subsidiary loop connects 5V power supply,
The first integrated circuit XOR gate is connected to behind one end of contactor subsidiary loop number one normally-closed contact the 8th resistance of connection
First foot signal input part, the other end ground connection of the 8th resistance；No. second normally opened contact of contactor subsidiary loop is grounded, contact
The number one normally opened contact of device subsidiary loop reconnects the second of the first integrated circuit XOR gate after connecting with the 9th resistance one end
Foot signal input part；The contactor fault alarm input signal end of the third foot connection master control borad of first integrated circuit XOR gate,
The third foot of first integrated circuit XOR gate connects the 12nd diode anode, and the other end of the 9th resistance connects 5V power supply；
The 6th grade of radiator fan driving circuit includes the 5th voltage-stabiliser tube, the 6th resistance, the 7th resistance, the three or three pole
Pipe, third diode and third relay；Wherein, master control is reconnected after one end connection of the 5th pressure stabilizing tube cathode, the 6th resistance
The temperature alarm input terminal of plate, the 5th pressure stabilizing tube anode and third transistor emitter are grounded, the other end connection of the 6th resistance
Third transistor base stage；Third diode sun is reconnected after the cathode of third transistor collector connection third relay coil
The anode connection 24V positive pole of pole, third diode cathode and third relay coil, the 6th foot of third relay and the
One end of seven resistance is separately connected the fan feedback input signal end of master control borad, and the other end connection 5V power supply of the 7th resistance is just
A piece power supply of pole, the octal normally opened contact ground connection of third relay, the third foot connection radiator fan of third relay is defeated
Enter end, the first foot normally opened contact of third relay connects three-phase alternating-current supply input terminal firewire, another electricity of radiator fan
Source input terminal connects one end of the first fuse, another termination three-phase alternating-current supply input terminal zero curve of the first fuse；
The 7th grade of electrothermal relay fault diagnosis mechanism includes the 9th diode, the 4th triode, eleventh resistor, the
13 resistance, the 14th resistance, the tenth voltage-stabiliser tube, the first triode, the second integrated circuit with or door and electrothermal relay assist back
The normally-closed contact and normally opened contact on road；Wherein, No. second normally closed touching of the 9th diode cathode connection electrothermal relay subsidiary loop
Point, the 9th diode anode connect the 4th transistor collector, and the 4th transistor base connects one end of eleventh resistor, and the 11st
The other end of resistance connects the first transistor collector, and the 4th transistor emitter connects 24V power supply, the first transistor emitter
Ground connection；The base stage connection third level of first triode manually boots the third foot of the second relay of circuit；Thirteenth resistor
The number one normally-closed contact of one termination electrothermal relay subsidiary loop；The other end of thirteenth resistor, the 14th resistance one end and
Be commonly connected at tenth pressure stabilizing tube cathode three second integrated circuit with or door the first foot, the other end of the 14th resistance and the
Ten voltage-stabiliser tube plus earths；Second integrated circuit with or door crus secunda connection fourth stage temperature alarm mechanism output signal
End；Second integrated circuit with or door third foot output end be separately connected master control borad electrothermal relay failure alarm signal input
It holds, the 11st diode anode of second level contactor low-voltage control circuit.
The utility model has the advantages that the present invention is the mirror of major loop by the normally opened and normally-closed contact that assists of contactor and electrothermal relay
As relationship, it is only necessary to detect subsidiary loop normally opened contact and the respective connection relationship of normally-closed contact, that is, may know that the operation of major loop
State, while if the logical relation between two normally opened contacts and two normally-closed contacts of subsidiary loop extremely can judging device
Diagnostic signal is transmitted to master control borad by part disabler, and master control borad is communicated by host computer again, reminds operator to in-situ processing
Abnormal conditions, at the same the present apparatus have the advantages that 1., motor overheating protection and alarm prompt function；2., brake be in
Under life state and on-position, can line real time diagnosis go out contactor and whether electrothermal relay faulty, positioning failure device,
It cuts off the power in time；3., pure hardware inline diagnosis defective device, high reliablity, subsequent master control borad reminds operator to exclude in time
Failure；4., required device type it is common, number of elements is less, management easy to produce, can directly be used in the control of all kinds of motors
System aspect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is the circuit diagram of presently preferred embodiments of the present invention.
Fig. 3 is the circuit diagram of presently preferred embodiments of the present invention.
Fig. 4 is the first order motor-drive circuit schematic diagram in presently preferred embodiments of the present invention.
Fig. 5 is the second level contactor low-voltage control circuit schematic diagram in presently preferred embodiments of the present invention.
Fig. 6 is that the third level in presently preferred embodiments of the present invention manually boots circuit diagram.
Fig. 7 is the fourth stage temperature alarm mechanism principle figure in presently preferred embodiments of the present invention.
Fig. 8 is the level V contactor fault diagnosis mechanism principle figure in presently preferred embodiments of the present invention.
Fig. 9 is the 6th grade of radiator fan driver circuit schematic diagram in presently preferred embodiments of the present invention.
Figure 10 is the 7th grade of electrothermal relay fault diagnosis mechanism principle figure in presently preferred embodiments of the present invention.
Specific embodiment
In order to be readily apparent from the technical means, the creative features, the aims and the efficiencies achieved by the present invention clearly, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to the brake motor monitoring and line real time diagnosis failed equipment of Fig. 1~2, including first order motor driven electricity
Road, second level contactor low-voltage control circuit, the third level manually boot circuit, fourth stage temperature alarm mechanism, level V contact
Device fault diagnosis mechanism, the 6th grade of radiator fan driving circuit and the 7th grade of electrothermal relay fault diagnosis mechanism, wherein the first order
Motor-drive circuit includes the motor-drive circuit being made of contactor and electrothermal relay, second level contactor low-voltage control circuit
Including by relay, triode, diode, voltage-stabiliser tube, resistance, contactor control loop coil and thermal relay normally closed contact group
At low-voltage control circuit, it includes by relay, diode, self-locking button switch and electrothermal relay that the third level, which manually boots circuit,
The electric motor starting of subsidiary loop normally-closed contact composition opens circuit, and fourth stage temperature alarm mechanism includes resistor network and hot relay
Device assists normally opened contact composition, and level V contactor fault diagnosis mechanism includes resistance, XOR gate, contactor auxiliary normally-closed contact
And contactor assists normally opened contact, the 6th grade of radiator fan driving circuit includes relay, triode, resistance, diode, pressure stabilizing
Pipe and fuse, the 7th grade of electrothermal relay fault diagnosis mechanism includes diode, triode, voltage-stabiliser tube, resistance, XOR gate and heat
Relay normally open contact and normally-closed contact.
Referring to shown in Fig. 3~4, the first order motor-drive circuit includes contactor and electrothermal relay, wherein contactor
Three firewires of three input terminals connection input three-phase alternating-current supply of major loop, three output ends connection of contactor major loop
Three input terminals of electrothermal relay major loop, three output ends of electrothermal relay major loop are connected to the three phase mains of three-phase motor
Input terminal, the ground terminal (i.e. the end PE) of the cage connection three-phase alternating-current supply input terminal of three-phase motor；Contactor subsidiary loop
The reference point of potential GND of second normally opened contact NO2 connection light current power supply；First normally opened contact NO1 of contactor subsidiary loop connects
Behind the one end for connecing the 9th resistance of level V contactor fault diagnosis mechanism, it is connected to the first integrated circuit XOR gate together
The other end at crus secunda input signal end, the 9th resistance connects at light current power supply (5V)；No. second of contactor subsidiary loop is often
At closed contact NC2 connection light current power supply (5V), the one of the 8th resistance of number one normally-closed contact NC1 connection of contactor subsidiary loop
End, the reference voltage point GND of the other end connection light current power supply of the 8th resistance；The positive and negative terminals of contactor control coil are distinguished
It is sequentially connected the 4th foot of the first relay of second level contactor low-voltage control circuit, the reference voltage point GND of light current power supply；
Referring to shown in Fig. 3,5, the second level contactor low-voltage control circuit includes the first relay RY1, the 5th resistance,
First diode, the 6th diode, the 7th diode, the 8th diode, the 11st diode, the 12nd diode, the 4th are surely
Pressure pipe, the second triode, wherein the anode of the 4th foot (i.e. normally-closed contact) the connection contactor control coil of the first relay is defeated
Enter end, connects electrothermal relay auxiliary together behind one end of third foot (i.e. common) the connection thirteenth resistor of the first relay
The number one normally-closed contact (i.e. at the 7th foot NC1 of FRA) in circuit, the cathode of the other end of thirteenth resistor and the tenth voltage-stabiliser tube
And the 14th resistance one end three at connect after reconnect the second integrated circuit with or door the first foot signal input part；One or two
The coils from parallel connection of coils of pole pipe and the first relay, and the positive terminal of the negative pole end of first diode and the first relay coil connects respectively
24V positive pole is connect, the anode of first diode reconnects the second triode after connecting with the negative pole end of the first relay coil
Collector, the emitter of the second triode is grounded (i.e. GND), and the base stage of the second triode connects one end of the 5th resistance, the
The other end of five resistance, the cathode of the 4th voltage-stabiliser tube, the cathode of the 6th diode, the 7th diode cathode, the 8th diode
Cathode, be connected to a bit at the cathode of the 11st diode and the cathode seven of the 12nd diode, the anode of the 4th voltage-stabiliser tube
Ground connection, the anode of the 6th diode connect the motor control signal output port of master control borad (label are as follows: Control Motor)；The
The anode of seven diodes, the second integrated circuit with or the crus secunda of door, one end of the tenth resistance, one end of the 6th resistance, the 5th
Temperature alarm input terminal (the label are as follows: Overheat of master control borad is reconnected after linking together at the cathode five of voltage-stabiliser tube
Alarm), at No. second normally opened contact three of the other end of the tenth resistance, one end of second resistance and electrothermal relay subsidiary loop
It is connected to a bit, the other end ground connection of second resistance, the base stage of the other end connection third transistor of the 6th resistance；5th pressure stabilizing
The plus earth of pipe；The anode connection third level of 8th diode manually boots the third foot (label of the second relay of circuit
Are as follows:)；The anode of 11st diode connects second collection of the 7th grade of electrothermal relay fault diagnosis mechanism
At circuit with or door third foot output end (label are as follows: Thermal Relay Invalid)；The anode of 12nd diode connects
Connect the third foot output end (label are as follows: Contactor of the first integrated circuit XOR gate of level V contactor fault diagnosis mechanism
Abnormal)；
Referring to shown in Fig. 3,6, it includes the second relay RY that the third level, which manually boots circuit,2, the second diode, first
Self-locking button switch S1, hot protective relay subsidiary loop normally-closed contact NC1 and NC2, the 4th resistance；Wherein, first is self-locking
Button switch S1One end and the cathode of the second diode be separately connected power supply 24V, the plus earth of the second diode, first from
Lock button switch S1The second relay coil of another termination the 5th foot, the second relay coil the 4th foot ground connection, second
The common end of one group of contact of relay, the third foot of the second relay, the 4th resistance one end connection after reconnect master control borad
Manually boot confirmation feedback input end (label are as follows:), another termination power 5V of the 4th resistance, second
First foot of relay is grounded, and the 6th foot of the second relay meets power supply 24V, and one group of normally opened contact connects heat in the second relay
No. second normally-closed contact (label: FRNC2) of relay subsidiary loop；
Referring to shown in Fig. 3,7, fourth stage temperature alarm mechanism includes second resistance, the tenth resistance, Thermal protection relay
Device subsidiary loop, wherein the first normally opened contact (label are as follows: FRNO1) of hot protective relay subsidiary loop meets positive pole 5V,
The second normally opened contact (label are as follows: FRNO2) of hot protective relay subsidiary loop reconnects after connecting with one end of second resistance
To one end of the tenth resistance；Three tunnels of the other end of tenth resistance point output: the temperature alarm input terminal of first via connection master control borad
(label are as follows: Overheat Alarm), the second integrated circuit that the second tunnel connects the 7th grade of electrothermal relay fault diagnosis mechanism is same
Or the crus secunda of door, third road are connected to the 5th pressure stabilizing tube cathode of the 6th grade of radiator fan driving circuit, second resistance it is another
One end ground connection；
Referring to shown in Fig. 3,8, the level V contactor fault diagnosis mechanism includes contactor subsidiary loop normally-closed contact
With normally opened contact, the 8th resistance, the 9th resistance and the first integrated circuit XOR gate U1；Wherein, contactor subsidiary loop second is often
Closed contact KMNC2 meets power supply 5V, after contactor subsidiary loop number one normally-closed contact KMNC1 connects one end of the 8th resistance, one
Act the first foot signal input part for being connected to the first integrated circuit XOR gate, the other end ground connection of the 8th resistance；Contactor auxiliary
No. second normally opened contact (label are as follows: KMNO2) in circuit is grounded, the number one normally opened contact of contactor subsidiary loop (label are as follows:
KMNO1 the crus secunda signal input part of the first integrated circuit XOR gate is connected to after) connecting with the 9th resistance one end；First collection
The contactor fault alarm input signal end (label are as follows: Contactor of master control borad is connect at the third foot of circuit XOR gate
Abnormal), the third foot of the first integrated circuit XOR gate connects the anode of the 12nd diode, another termination electricity of the 9th resistance
Source 5V；
Referring to shown in Fig. 3,9, the 6th grade of radiator fan driving circuit includes the 5th voltage-stabiliser tube, the 6th resistance, the 7th
Resistance, third transistor, third diode and third relay；Wherein, one end company of the cathode of the 5th voltage-stabiliser tube, the 6th resistance
The temperature alarm input terminal (label are as follows: Overheat Alarm) of master control borad, the anode of the 5th voltage-stabiliser tube and the are reconnected after connecing
The emitter of three triodes is grounded, the base stage of another termination third transistor of the 6th resistance；The collector of third transistor connects
The anode of third diode, the cathode and third relay line of third diode are connected to after the cathode of third relay coil
The anode connection positive pole 24V of circle, the 6th foot of third relay and one end of the 7th resistance are separately connected the wind of master control borad
It fans feedback input signal end (label are as follows: FAN Feedback), another termination positive pole 5V of the 7th resistance, third relay
Octal normally opened contact ground connection, one group of contact common end (the third foot of third relay) of third relay connects radiator fan
A power input (label are as follows: FanL), the first foot normally opened contact of third relay connects three-phase alternating-current supply input terminal
Another power input of firewire (label are as follows: A), radiator fan terminates the first fuse (label are as follows: F1) one end, first protect
Another termination three-phase alternating-current supply input terminal zero curve (label are as follows: N) of dangerous silk；
Referring to shown in Fig. 3,10, the 7th grade of electrothermal relay fault diagnosis mechanism includes the 9th diode, the four or three pole
Pipe, eleventh resistor, thirteenth resistor, the 14th resistance, the tenth voltage-stabiliser tube, the first triode, the second integrated circuit with or door
And the normally-closed contact and normally opened contact of electrothermal relay subsidiary loop；Wherein, the cathode of the 9th diode connects electrothermal relay and assists back
No. second normally-closed contact (label are as follows: FRNC2) on road, the anode of the 9th diode connect the collector of the 4th triode, and the four or three
The base stage of pole pipe connects one end of eleventh resistor, and the other end of eleventh resistor connects the collector of the first triode, and the four or three
The emitter of pole pipe connects power supply 24V, the emitter ground connection of the first triode；The base stage of first triode connects the third level and manually boots
Second relay of circuit third foot (label are as follows:)；One termination electrothermal relay of thirteenth resistor is auxiliary
Help the number one normally-closed contact (label are as follows: FRNC1) in circuit；The other end of thirteenth resistor, one end of the 14th resistance and
Be commonly connected at the cathode three of ten voltage-stabiliser tubes the second integrated circuit with or door the first foot, the other end of the 14th resistance and the
The plus earth of ten voltage-stabiliser tubes；Second integrated circuit with or door crus secunda be connected to fourth stage temperature alarm mechanism output letter
Number end (label are as follows: Overheat Alarm)；Second integrated circuit is together or the third foot output end signal of door divides two-way to export: one
Road connects the electrothermal relay failure alarm signal input terminal (label are as follows: Thermal Relay Invalid) of master control borad, and another way connects
The anode of 11st diode of second level contactor low-voltage control circuit.
In the present embodiment, brake motor monitoring and line real time diagnosis failure carrying out practically method are as follows:
One, brake motor is in normal operating condition situation
Firstly, operator presses manual actuation of button S as shown in Fig. 3,61, the second relay coil must electrically connect, and second
One group of normally opened contact (octal of the second relay) of relay and corresponding public terminal contacts (the 6th of the second relay
Foot) it connects, then electrothermal relay subsidiary loop No. second normally-closed contact (label are as follows: FRNC2) obtains electric, i.e. VFRNC2=24V；The
Another group of normally opened contact (the first foot of the second relay) and another group of common end (third of the second relay of two relays
Foot) connect, then the voltage of the third foot of the second relay for route (GND), i.e.,
The low level signal label are as follows:Master control borad is transported to,It is indicated for low level
Brake motor is manually booted, therefore the two-way normally-closed contact (label is respectively as follows: FRNC1 and FRNC2) of electrothermal relay is in and connects
Logical state, therefore VFRNC1=VRFNC2The voltage of=24V, i.e. the third foot (one group of public terminal contacts) of the first relay is
VRY1_Pin3=24V, five road signalsOverheat Alarm、Control Motor、Thermal
Relay Invalid and Contactor Abnormal are consecutively connected to five diodes i.e. the 8th diode D respectively8, the 7th
Diode D7, the 6th diode D6, the 11st diode D11And the 12nd diode D12Anode, five diodes the i.e. the 6th 2
Pole pipe D6, the 7th diode D7, the 8th diode D8, the 11st diode D11And the 12nd diode D12Cathode connect jointly
Together with realize or logical relation；When normal operating condition, five road signalsOverheat
Alarm, Control Motor, Thermal Relay Invalid and Contactor Abnormal are low level；Therefore the
Two triode (Q2) cut-off, the first relay (RY1) coil is not powered on, the public terminal contacts of the first relay be (the first relay
Third foot) it is connected with the 4th foot of the first relay of normally-closed contact, contactor control coil obtains electric, and then braking motor powers on,
Braking motor, which is in, to be worked normally；
The control signal Control Motor of master control borad output, normally low level；When the control of master control borad output
When signal Control Motor processed is high level, which promotes the second triode ON by the 5th resistance, first after
Electric apparatus coil obtains electric, normally-closed contact (marked as K1) and public terminal contacts (marked as FRNC1) disconnection, the mistake of contactor control coil
Electricity cuts off the input power of brake motor；After manually booting, feedback signal is manually bootedFor low electricity
Flat, other three tunnels alarm signal Overheat Alarm, Thermal Relay Invalid and Contactor Abnormal are
When being for high level, abnormal conditions are indicated, indicate to be in normal operating conditions when for low level；Manually boot unlatching
Afterwards, No. second normally-closed contact (FRNC2) of electrothermal relay subsidiary loop obtains electric, and due to not overheating, normally-closed contact and common end are touched
Point is connected, therefore the number one normally-closed contact FRNC1 voltage of electrothermal relay subsidiary loop is also 24V, and the voltage is through thirteenth resistor
With the high level after the 14th electric resistance partial pressure be input to the second integrated circuit with or door the first foot signal input part；Hot relay
Two normally opened contacts of device disconnect, and then electrothermal relay subsidiary loop No. second normally opened contact is dragged down by second resistance, voltage
Are as follows: VFRNO2=0, the voltage through the tenth resistance be input to the second integrated circuit with or door crus secunda signal input part, and
Overheat Alarm signal is low level, and the second integrated circuit is together at this time or two input terminals of door are specific signal a: height
Level, a low level, thus the second integrated circuit with or door third foot output signal be low level be (label: Thermal
Relay Invalid) it is low level；
Under normal circumstances, two input terminals of the first integrated circuit XOR gate: or be all high level or be all low level, therefore
The third foot of first integrated circuit XOR gate is low level, i.e., (label: Contactor Abnormal) is low level；
When contactor major loop is to disconnect, the normally-closed contact closure of contactor subsidiary loop, contactor subsidiary loop
No. second normally-closed contact voltage is high level, and then number one normally-closed contact voltage KMNC1 is also high level；Contactor assists back
The normally opened contact on road disconnects, and then the number one normally opened contact (label: KMNO1) of contactor subsidiary loop is pulled up by the 9th resistance
It is high level, two input terminals of the first integrated circuit XOR gate are high level at this time, therefore the first integrated circuit to high voltage
The output signal of XOR gate third foot (label: Contactor Abnormal) is low level；
Similarly, when contactor major loop is to connect, the first integrated circuit XOR gate third foot (label Contactor
It Abnormal) is low level；In conclusion when working normally, five road signalsOverheat Alarm、
Control Motor, Thermal Relay Invalid and Contactor Abnormal are low level, the second triode
Cut-off, the normally-closed contact and common end contact closure of the first relay, contactor auxiliary control coil obtain electric, contactor major loop
It connects, brake motor powers on, and starts to work；
Two, brake motor is standby
When such situation, manual actuation of button is disconnected, and as shown in Fig. 3,6, the second relay coil is not powered on, normally-closed contact
Closure, then the third foot voltage of the second relay is drawn high by the 4th resistance to supply voltage, therefore the third foot of the second relay
For high level, this high level signal is transmitted to master control borad, which is that high level indicates not enabled brake motor；Second relay
It is electric that the high level of the third foot of device through the 8th diode, the 5th resistance and the second triode obtains the first relay coil, and
The normally-closed contact of one relay and public terminal contacts disconnect, and contactor control coil is not powered on, and brake motor does not power on, not work
Make, it is standby；
As shown in Fig. 3,10, the high level of the third foot of the second relay makes the first triode ON, then triggers the 4th
Triode ON, finally by No. second normally-closed contact of the 9th diode output supply voltage supply electrothermal relay subsidiary loop
FRNC2, since the normally-closed contact of electrothermal relay subsidiary loop is closed, the number one normally-closed contact of electrothermal relay subsidiary loop is also
High level, then the second integrated circuit with or door the first foot input high level；And electrothermal relay normally opened contact disconnect, heat after
Second normally opened contact of the subsidiary loop of electric appliance is pulled down to ground, therefore V by second resistanceFRNO2=0, at this time with or two input terminal of door
Signal is anisotropic level: one be high level, another be low level, then the second integrated circuit together or the third foot of door it is defeated
Voltage is low level out, which indicates that electrothermal relay is in normal armed state；
When overheat, the normally opened contact closure of electrothermal relay subsidiary loop, i.e. VFRNO2=VFRNO1=5V, i.e. VOverheatAlarm
=5V, three tunnels of the high level temperature alarm point transmission: the first via to master control borad, the 7th diode of the second tunnel to the second level
Contactor low-voltage control circuit cuts off three-phase motor power supply, and fan work is triggered to the 6th grade of radiator fan driving circuit in third road
Make, to accelerate the speed of motor radiating and cooling；Work as VOverheatAlarmWhen=5V, as shown in Fig. 3,9, third transistor conducting,
Third relay coil obtains electric, one group normally opened contact (the first foot of third relay) and corresponding public terminal contacts (third
The third foot of relay) it connects, then fan connects AC power source, and fan is started to work, and is conducive to the heat dissipation speed for enhancing motor
Degree；Another group of normally opened contact (octal of third relay) connects with corresponding public terminal contacts (the 6th foot of third relay)
Logical, then the voltage at the fan feedback input signal end of master control borad is low level, which is transmitted to master control borad, the wind of master control borad
The voltage for fanning feedback input signal end is low level, indicates that radiator fan works on power；
When electrothermal relay assists normally-closed contact and normally opened contact to simultaneously switch off, as shown in Fig. 3,10, it is known that: VFRNC1=
VFRNO2=0, then the second integrated circuit with or two input terminals of door be all low level, therefore the second integrated circuit with or door the
Three feet export high level, this high level signal is electrothermal relay fault diagnosis alarm signal, divide two-way to export, are sent to master control all the way
Plate reminds operator to replace electrothermal relay in time, and another way promotes the second triode ON, the first relay through the 11st diode
Device coil powers on, and normally-closed contact and public terminal contacts disconnect, i.e. contactor control coil power loss, automatically cuts off brake three-phase electricity
The supply of electromechanical source, has the function that overheating protection；
When electrothermal relay assists normally-closed contact and normally opened contact to simultaneously turn on, similarly, the second integrated circuit with or door
Third foot exports high level, which is electrothermal relay fault diagnosis alarm signal, which passes through the 11st pole
Pipe is so that the second triode ON, the first relay coil obtain electric, the normally-closed contact and public affairs of the first relay subsidiary loop of disconnection
The connection relationship of terminal contacts altogether, then contactor auxiliary control coil power loss, brake three-phase motor are automatically de-energised, to reach
Line real time diagnosis electrothermal relay failure, and automatically power off, he realizes the purpose of protection braking motor；It is not opened when manually booting
When, the normally opened contact of the second relay octal is not connected with corresponding the 6th foot of common end, and the of electrothermal relay subsidiary loop
There are two types of the power supply modes of No. two normally-closed contacts (FRNC2): 1, obtaining the second relay the by the octal of the second relay
Supply voltage 24V on six feet；2, it is powered by the 9th diode one direction, since the third foot of the second relay is high electricity
Flat, the first triode ON, the 4th triode is also switched on, and then electrothermal relay subsidiary loop No. second normally-closed contact obtains electric；
When armed state, electrothermal relay assist normally-closed contact closure, the number one normally-closed contact of electrothermal relay subsidiary loop also it is electric, pass through
Obtain high voltage after thirteenth resistor and the 14th electric resistance partial pressure, be transported to the second integrated circuit with or door the first foot signal
Input terminal；Electrothermal relay assists normally opened contact to disconnect, normally opened contact (label: FRNO2) quilt of hot protective relay subsidiary loop
Second resistance is pulled down to ground, therefore the second integrated circuit is same or door crus secunda input signal is low level, then the second integrated electricity
Road is together or the third foot of door is low level, does not find that electrothermal relay has exception；
Under armed state, the normally-closed contact (label are as follows: KMNC1 and KMNC2) of contactor subsidiary loop is closed, the first collection
The first foot input signal at circuit XOR gate is high level, and the normally opened contact of contactor subsidiary loop disconnects, contactor auxiliary
First normally opened contact (label are as follows: KMNO1) in circuit is drawn high by the 9th resistance to supply voltage, then the first integrated circuit exclusive or
The crus secunda input signal of door is high level, since two input end signals of XOR gate are low level, therefore the first integrated circuit
The output signal of XOR gate third foot is low level, which indicates that contactor is in normal condition, low level signal
Master control borad is input to be handled and stored；If the normally-closed contact and normally opened contact of contactor subsidiary loop are all also turned on or together
When disconnect, both abnormal conditions, two input terminal of the first integrated circuit XOR gate is anisotropic level: a high level, one it is low
Level, then the output signal of the first integrated circuit XOR gate third foot is high level, i.e. the contactor fault alarm of master control borad
Input signal end (label: Contactor Abnormal) is high level, that is, being diagnosed to be contactor, there are failure, the high level reports
Alert signal is transmitted to master control borad, the contactor fault alarm input signal end (label: Contactor Abnormal) of master control borad
High level signal the second triode ON is made by the 12nd diode and the 5th resistance, the first relay coil obtain it is electric,
The normally-closed contact of first relay is disconnected with corresponding public terminal contacts, then contactor control coil power loss, is disconnected to braking
The three phase mains of device motor plays the purpose of protection motor；
Three, brake motor control is in abnormality
When motor overheating, as shown in Fig. 3,7, the normally-closed contact of electrothermal relay movement, electrothermal relay subsidiary loop is disconnected,
The normally opened contact of electrothermal relay subsidiary loop is closed, then the normally opened contact (label: FRNO2) of hot protective relay subsidiary loop
Voltage be supply voltage 5V, the high level voltage through the tenth resistance be transported to the first via connection master control borad temperature alarm input
It holds (label: Overheat Alarm), the first via connects the temperature alarm input terminal (label: Overheat Alarm) of master control borad
High level signal as temperature alarm, which is transmitted to master control borad, while the high level is logical
The 7th diode and the 5th resistance are crossed, the second triode ON is promoted, the first relay coil obtains electric, disconnection contactor auxiliary control
The power supply of coil processed cuts off the three phase supply of motor in time, has the function that line real time diagnosis failure and protection motor；
If there are abnormal conditions in electrothermal relay, as electrothermal relay ancillary coil normally-closed contact is closed, while electrothermal relay
Normally opened contact is also closed；Or the normally-closed contact and normally opened contact of electrothermal relay are when all disconnecting, it is known that in above two abnormal feelings
Under condition, the second integrated circuit with or two input terminal of door will be all high level or be all low level, then the second integrated circuit with or
Three foot of the family status exports high level, is diagnosed to be electrothermal relay failure, and master control borad detects the high level alarm signal, in notice
Position machine and storing data；
If abnormal conditions occurs in contactor, as contactor ancillary coil normally-closed contact and normally opened contact are all closed at or break
It opens, is similarly apparent from, two input terminal of the first integrated circuit XOR gate will be all anisotropic level (i.e. a high level, a low electricity
It is flat), then the first integrated circuit XOR gate third foot exports high level, is diagnosed to be contactor failure.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. brake motor monitoring and line real time diagnosis failed equipment, including first order motor-drive circuit, second level contact
Device low-voltage control circuit, the third level manually boot circuit, fourth stage temperature alarm mechanism, level V contactor fault diagnosis machine
Structure, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad, which is characterized in that first
Grade motor-drive circuit manually boots circuit, fourth stage overheat report with second level contactor low-voltage control circuit, the third level respectively
Alert mechanism, level V contactor fault diagnosis mechanism, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis
Mechanism, master control borad and motor connection, second level contactor low-voltage control circuit manually boot circuit, level V with the third level respectively
Contactor fault diagnosis mechanism, the 6th grade of radiator fan driving circuit, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad
Connection, the third level manually boot circuit and connect with master control borad, fourth stage temperature alarm mechanism and the 6th grade of radiator fan driving electricity
Road, the 7th grade of electrothermal relay fault diagnosis mechanism and master control borad connection, level V contactor fault diagnosis mechanism and master control borad connect
It connects, the 6th grade of radiator fan driving circuit is connect with motor, master control borad；Each section specific structure is as follows:
The first order motor-drive circuit includes contactor and electrothermal relay, wherein three input terminals of contactor major loop
Connection input three-phase alternating-current supply firewire, three inputs of three output ends connection electrothermal relay major loop of contactor major loop
End, the three-phase power input end of three output ends connection three-phase motor of electrothermal relay major loop, the cage connection of three-phase motor
The ground terminal of three-phase alternating-current supply input terminal；The reference potential of the second normally opened contact connection light current power supply of contactor subsidiary loop
Point；One end of 9th resistance of the first normally opened contact connection level V contactor fault diagnosis mechanism of contactor subsidiary loop
Afterwards, it is then connected to the crus secunda input signal end of the first integrated circuit XOR gate, the other end of the 9th resistance connects light current power supply；
No. second normally-closed contact of contactor subsidiary loop connects light current power supply, the number one normally-closed contact connection of contactor subsidiary loop
One end of 8th resistance, the reference voltage point of the other end connection light current power supply of the 8th resistance；Contactor control coil just connects
Line end connects the ginseng of the 4th foot of the first relay of second level contactor low-voltage control circuit, negative terminals connection light current power supply
Examine electrical voltage point；
The second level contactor low-voltage control circuit includes the first relay, the 5th resistance, first diode, the six or two pole
Pipe, the 7th diode, the 8th diode, the 11st diode, the 12nd diode, the 4th voltage-stabiliser tube, the second triode,
In, the electrode input end of the 4th foot of the first relay connection contactor control coil, the third foot connection of the first relay the
The number one normally-closed contact of electrothermal relay subsidiary loop, the other end of thirteenth resistor and the tenth are connected behind one end of 13 resistance
The second integrated circuit is reconnected after connecting at one end three of pressure stabilizing tube cathode and the 14th resistance together or the first foot signal of door is defeated
Enter end；The coils from parallel connection of coils of first diode and the first relay, and the negative pole end of first diode and the first relay coil
Positive terminal is separately connected 24V positive pole, reconnects after the negative pole end connection of first diode anode and the first relay coil
The collector of second triode, the second transistor emitter ground connection, one end of the second transistor base the 5th resistance of connection, the 5th
The other end of resistance, the 4th pressure stabilizing tube cathode, the 6th diode cathode, the 7th diode cathode, the 8th diode cathode, the tenth
It is connected to a bit at one diode cathode and the 12nd diode cathode seven, the 4th voltage-stabiliser tube plus earth, the 6th diode sun
The motor control signal output end of pole connection master control borad；7th diode anode, the second integrated circuit with or door crus secunda, the
One end of ten resistance, one end of the 6th resistance, connect at the 5th pressure stabilizing tube cathode five after reconnect master control borad temperature alarm it is defeated
Enter end, connects at No. second normally opened contact three of the other end of the tenth resistance, one end of second resistance and electrothermal relay subsidiary loop
It is connected to a bit, the other end ground connection of second resistance, the other end of the 6th resistance connects third transistor base stage；5th voltage-stabiliser tube sun
Pole ground connection；The anode connection third level of 8th diode manually boots the third foot of the second relay of circuit；11st pole
Tube anode connect the second integrated circuit of the 7th grade of electrothermal relay fault diagnosis mechanism with or door third foot output end；12nd
Diode anode connects the third foot output end of the first integrated circuit XOR gate of level V contactor fault diagnosis mechanism；
The third level manually boot circuit include the second relay, the second diode, the first self-locking button switch, Thermal protection after
The normally-closed contact of electric appliance subsidiary loop, the 4th resistance；Wherein, one end of the first self-locking button switch and the second diode cathode point
Not Lian Jie 24V power supply, the second diode anode ground connection, the other end of the first self-locking button switch connects the second relay coil
5th foot, the 4th foot ground connection of the second relay coil, the common end of second one group of contact of relay, the second relay third
Foot, the 4th resistance one end connection after reconnect master control borad and manually boot confirmation feedback input end, the other end of the 4th resistance
5V power supply, the first foot ground connection of the second relay are connected, the 6th foot of the second relay connects 24V power supply, and in the second relay
No. second normally-closed contact of one group of normally opened contact connection electrothermal relay subsidiary loop；
Fourth stage temperature alarm mechanism includes second resistance, the tenth resistance, hot protective relay subsidiary loop, wherein heat
First normally opened contact of protective relay subsidiary loop connects 5V positive pole, and the second of hot protective relay subsidiary loop is normally opened
One end of the tenth resistance is connected to behind contact and the connection of one end of second resistance；The other end of tenth resistance is separately connected master control
The temperature alarm input terminal of plate, the 7th grade of electrothermal relay fault diagnosis mechanism the second integrated circuit with or door crus secunda, the
5th pressure stabilizing tube cathode of six grades of radiator fan driving circuits, the other end ground connection of second resistance；
The level V contactor fault diagnosis mechanism include contactor subsidiary loop normally-closed contact and normally opened contact, the 8th resistance,
9th resistance and the first integrated circuit XOR gate；Wherein, No. second normally-closed contact of contactor subsidiary loop connects 5V power supply, contact
The first of the first integrated circuit XOR gate is connected to behind one end of device subsidiary loop number one normally-closed contact the 8th resistance of connection
Foot signal input part, the other end ground connection of the 8th resistance；No. second normally opened contact of contactor subsidiary loop is grounded, and contactor is auxiliary
The crus secunda letter of the first integrated circuit XOR gate is reconnected after helping the number one normally opened contact in circuit to connect with the 9th resistance one end
Number input terminal；The contactor fault alarm input signal end of the third foot connection master control borad of first integrated circuit XOR gate, first
The third foot of integrated circuit XOR gate connects the 12nd diode anode, and the other end of the 9th resistance connects 5V power supply；
The 6th grade of radiator fan driving circuit includes the 5th voltage-stabiliser tube, the 6th resistance, the 7th resistance, third transistor, the
Three diodes and third relay；Wherein, the mistake of master control borad is reconnected after one end connection of the 5th pressure stabilizing tube cathode, the 6th resistance
Thermal warning input terminal, the 5th pressure stabilizing tube anode and third transistor emitter are grounded, the other end connection the three or three of the 6th resistance
Pole pipe base stage；Third diode anode, third are reconnected after the cathode of third transistor collector connection third relay coil
The anode connection 24V positive pole of diode cathode and third relay coil, the 6th foot of third relay and the 7th resistance
One end be separately connected the fan feedback input signal end of master control borad, the other end of the 7th resistance connects 5V positive pole, third
The octal normally opened contact of relay is grounded, a power input of the public termination radiator fan in one group of contact of third relay
The first foot normally opened contact at end, third relay connects three-phase alternating-current supply input terminal firewire, another power supply of radiator fan
Input terminal connects one end of the first fuse, another termination three-phase alternating-current supply input terminal zero curve of the first fuse；
The 7th grade of electrothermal relay fault diagnosis mechanism includes the 9th diode, the 4th triode, eleventh resistor, the 13rd
Resistance, the 14th resistance, the tenth voltage-stabiliser tube, the first triode, the second integrated circuit with or door and electrothermal relay subsidiary loop
Normally-closed contact and normally opened contact；Wherein, No. second normally-closed contact of the 9th diode cathode connection electrothermal relay subsidiary loop, the
Nine diode anodes connect the 4th transistor collector, and the 4th transistor base connects one end of eleventh resistor, eleventh resistor
The other end connect the first transistor collector, the 4th transistor emitter connects 24V power supply, and the first transistor emitter connects
Ground；The base stage connection third level of first triode manually boots the third foot of the second relay of circuit；The one of thirteenth resistor
Terminate the number one normally-closed contact of electrothermal relay subsidiary loop；The other end of thirteenth resistor, one end of the 14th resistance and
Be commonly connected at ten pressure stabilizing tube cathodes three second integrated circuit with or door the first foot, the other end and the tenth of the 14th resistance
Voltage-stabiliser tube plus earth；Second integrated circuit with or door crus secunda connection fourth stage temperature alarm mechanism output signal end；
Second integrated circuit with or the third foot output end of door be separately connected the electrothermal relay failure alarm signal input terminal of master control borad, the
11st diode anode of Secondary contact device low-voltage control circuit.
2. brake motor monitoring according to claim 1 and line real time diagnosis failed equipment, which is characterized in that master control
Plate is connect with host computer.
3. described in any item brake motor monitorings and line real time diagnosis failed equipment according to claim 1~2, feature
It is, brake motor monitoring and line real time diagnosis failure carrying out practically method are as follows:
One, brake motor is in normal operating condition situation
Firstly, operator presses manual actuation of button, the second relay coil must be electrically connected, the octal of the second relay and
6th foot of two relays is connected, and then electrothermal relay subsidiary loop No. second normally-closed contact obtains electric；The of second relay
The third foot of one foot and the second relay connect, then the voltage of the third foot of the second relay for route, low level signal
Be transported to master control borad, manually boot brake motor, therefore the two-way normally-closed contact of electrothermal relay is in an ON state, i.e., first after
The voltage of one group of public terminal contacts of third foot of electric appliance is 24V, the third foot of five the second relays of road signal, temperature alarm input
End, motor control signal output end, electrothermal relay failure alarm signal input terminal and contactor fault alarm input signal end point
It is not sequentially connected five diodes i.e. the 8th diode, the 7th diode, the 6th diode, the 11st diode and the 12nd
The anode of pole pipe, the 6th diode, the 7th diode, the 8th diode, five the 11st diode, the 12nd diode two poles
The cathode of pipe be commonly connected together with realize or logical relation；When normal operating condition, the third foot of the second relay, mistake
Thermal warning input terminal, motor control signal output end, electrothermal relay failure alarm signal input terminal and contactor fault alarm are defeated
Entering signal end is low level, therefore the second triode ends, and the first relay coil is not powered on, the third foot of the first relay with
4th foot of the first relay is connected, and contactor control coil obtains electric, and then braking motor powers on, and braking motor is in normal work
Make；
Two, brake motor is standby
Manual actuation of button disconnects, and the second relay coil does not power on, normally-closed contact closure, then the third foot of the second relay
Voltage is drawn high by the 4th resistance to supply voltage, therefore the third foot of the second relay is high level, this high level signal is transmitted to
Master control borad, the signal are that high level indicates not enabled brake motor；The high level of the third foot of second relay is through the eight or two
It is electric that pole pipe, the 5th resistance and the second triode obtain the first relay coil, the normally-closed contact of the first relay and common end
Contact disconnects, and contactor control coil is not powered on, and brake motor does not power on, does not work, standby；
Three, brake motor control is in abnormality
When motor overheating, the normally-closed contact of electrothermal relay movement, electrothermal relay subsidiary loop is disconnected, electrothermal relay subsidiary loop
Normally opened contact closure, then the voltage of the normally opened contact of hot protective relay subsidiary loop be supply voltage 5V, the high level
Voltage is transported to the temperature alarm input terminal of first via connection master control borad through the tenth resistance, and the first via connects the overheat report of master control borad
For the high level signal of alert input terminal as temperature alarm, which is transmitted to master control borad, simultaneously should
High level promotes the second triode ON by the 7th diode and the 5th resistance, and the first relay coil obtains electric, disconnection contact
The power supply of device auxiliary control coil cuts off the three phase supply of motor in time, to realize line real time diagnosis failure and protection motor.
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| CN201611003513.3A CN106451360B (en) | 2016-11-15 | 2016-11-15 | Brake motor monitoring and line real time diagnosis failed equipment |
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| CN201611003513.3A CN106451360B (en) | 2016-11-15 | 2016-11-15 | Brake motor monitoring and line real time diagnosis failed equipment |
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| CN108170054B (en) * | 2017-12-27 | 2023-12-08 | 上海辰竹仪表有限公司 | Intelligent safety relay and application circuit thereof |
| CN109240074B (en) * | 2018-08-02 | 2021-07-16 | 中国航空工业集团公司西安飞行自动控制研究所 | Method for switching main and standby work of actuator in dual-redundancy control mode |
| CN111764781A (en) * | 2020-06-17 | 2020-10-13 | 西安方元明科技股份有限公司 | Heavy-load bulletproof glass lifter |
| CN112986814A (en) * | 2021-04-28 | 2021-06-18 | 潍柴动力股份有限公司 | Fault diagnosis device and method for relay |
| CN113746381B (en) * | 2021-08-30 | 2023-11-03 | 珠海格力电器股份有限公司 | Braking control device and method of motor and motor |
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| Title |
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| 电动机综合保护器设计;冯浩源等;《中国水运》;20080630;第08卷(第6期);第122-124页 |
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| Publication number | Publication date |
|---|---|
| CN106451360A (en) | 2017-02-22 |
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