CN108803583B - Test equipment of group control system control cabinet - Google Patents
Test equipment of group control system control cabinet Download PDFInfo
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- CN108803583B CN108803583B CN201810948670.4A CN201810948670A CN108803583B CN 108803583 B CN108803583 B CN 108803583B CN 201810948670 A CN201810948670 A CN 201810948670A CN 108803583 B CN108803583 B CN 108803583B
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- 238000012360 testing method Methods 0.000 title claims abstract description 190
- 238000004088 simulation Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 32
- 238000010586 diagram Methods 0.000 description 7
- 238000010998 test method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- 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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Automation & Control Theory (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The application relates to test equipment of a group control system control cabinet, which comprises a plurality of test circuits and a change-over switch under different test flows, wherein the plurality of test circuits are connected with the change-over switch, and the plurality of test circuits are connected with a tested controller of the control cabinet; the change-over switch is used for switching the test flow of the controlled controller, and the test circuit is used for carrying out simulation test of the corresponding test flow on the controlled controller according to the test flow switched by the change-over switch lock. The test equipment is used as the simulation equipment of the electric butterfly valve, the tested controller is connected with the test circuit of the corresponding test flow of the test equipment, the test circuit of the corresponding test flow carries out simulation test of the corresponding test flow on the tested controller according to the switching state of the change-over switch, the control condition of the tested controller on the electric butterfly valve under various field working conditions can be simulated and detected through the test equipment, and the test convenience is improved.
Description
Technical Field
The application relates to the field of controller testing, in particular to testing equipment of a group control system control cabinet.
Background
At present, the water system in the industry utilizes a group control system control cabinet to monitor the running condition of each device, so that whether the running of a controller in the group control system control cabinet is normal or not and whether the burning program logic in the controller is correct or not influences the normal running of the whole water system.
The test of the controller in the traditional control cabinet and the programming logic in the controller gives corresponding digital or analog input and output control signals through the input and output modes of the corresponding interfaces of the controller so as to test the normal operation of the controller and the correctness of the programming logic, however, the traditional test method cannot simulate and detect the control condition of the controller under various field working conditions, and has the problem of low test convenience.
Disclosure of Invention
In view of the above, it is desirable to provide a test apparatus for a group control system control cabinet that can improve test convenience.
The equipment comprises a change-over switch and a plurality of test circuits under different test flows, wherein the test circuits are connected with the change-over switch and are connected with a tested controller of the control cabinet;
the change-over switch is used for switching the test flow of the tested controller;
the test circuit is used for carrying out simulation test on the tested controller corresponding to the test flow according to the test flow switched by the change-over switch.
In one embodiment, the test flow comprises a valve opening test flow, a valve closing test flow and a fault feedback test flow, the change-over switch comprises an operation end and a fault feedback end, the test circuit comprises a valve opening circuit, a valve closing circuit and a fault feedback circuit, the valve opening circuit is connected with the valve closing circuit, the fault feedback circuit is connected with the valve opening circuit and the valve closing circuit, the valve opening circuit, the valve closing circuit and the fault feedback circuit are all connected with the change-over switch, the valve opening circuit is connected with a measured controller, the valve closing circuit is connected with the measured controller, and the fault feedback circuit is connected with the measured controller;
the valve opening circuit is used for receiving a valve opening control signal output by the measured controller when the change-over switch is switched to the operation end, and performing valve opening process simulation according to the valve opening control signal;
the valve closing circuit is used for receiving a valve closing control signal output by the measured controller when the change-over switch is switched to the operation end, and performing valve closing process simulation according to the valve closing control signal;
the fault feedback circuit is used for carrying out a fault feedback flow when the transfer switch is switched to the fault feedback end.
In one embodiment, the device further comprises a protection circuit, wherein the valve opening circuit, the valve closing circuit and the fault feedback circuit are all connected with an external power supply through the protection circuit, and the protection circuit is used for automatically disconnecting the power supply when the test device is in overcurrent.
In one embodiment, the valve opening circuit is further configured to output a signal to be controlled after performing the valve opening process simulation according to the valve opening control signal; the valve closing circuit is also used for outputting a valve closing signal to the controlled controller after the valve closing process simulation is carried out according to the valve closing control signal; the fault feedback circuit is used for outputting a fault feedback signal to the controlled controller after the fault feedback process is carried out.
In one embodiment, the valve opening circuit comprises a first intermediate relay and a first time relay, the first intermediate relay comprising a coil, a normally open contact, a first normally closed contact, and a second normally closed contact; the first time relay comprises a coil and a delay closing contact;
the coil of the first intermediate relay is connected with a protection circuit, and the coil of the first intermediate relay is connected with a controlled controller through a valve opening port; the normally open contact of the first intermediate relay is connected with the protection circuit, the normally open contact of the first intermediate relay is connected with the valve closing circuit, the coil of the first time relay is connected with the valve closing circuit, and the coil of the first time relay is connected with the fault feedback circuit; the first normally closed contact of the first intermediate relay is connected with a valve closing circuit; the delay closing contact of the first time relay is connected with the protection circuit, the delay closing contact of the first time relay is connected with the change-over switch, and the delay closing contact of the first time relay is connected with the in-place port through the closing valve circuit and is connected with the measured controller through the in-place port; the second normally closed contact of the first intermediate relay is connected with a valve closing circuit;
when the change-over switch is switched to the operation end, the first intermediate relay receives a valve opening control signal through a valve opening port, a coil of the first intermediate relay is electrified, a normally open contact of the first intermediate relay is closed, and a first normally closed contact and a second normally closed contact of the first intermediate relay are both opened; the coil of the first time relay is electrified when the normally open contact of the first intermediate relay is closed, and the time delay closing contact of the first time relay is controlled to be closed according to the preset valve opening time length, and an in-place opening signal is output to the controlled controller through an in-place opening port.
In one embodiment, the valve closing circuit includes a second intermediate relay and a second time relay, the second intermediate relay including a coil, a normally open contact, a first normally closed contact, and a second normally closed contact; the second time relay comprises a coil and a delay closing contact;
the coil of the second intermediate relay is connected with the protection circuit, the second intermediate relay is connected with the measured controller through a valve closing port, the first normally closed contact of the second intermediate relay is connected with the normally open contact of the first intermediate relay, and the first normally closed contact of the second intermediate relay is connected with the coil of the first time relay; the first normally closed contact of the first intermediate relay is connected with the normally open contact of the second intermediate relay, the normally open contact of the second intermediate relay is connected with the protection circuit, the first normally closed contact of the first intermediate relay is connected with the coil of the second time relay, and the coil of the first time relay and the coil of the second time relay are both connected with the fault feedback circuit; the second normally closed contact of the second intermediate relay is connected with the delay closed contact of the first time relay, and the second normally closed contact of the second intermediate relay is connected with the to-be-measured controller through an in-place opening port; the second normally closed contact of the first intermediate relay is connected with the delay closed contact of the second time relay, the delay closed contact of the second time relay is connected with the protection circuit, the delay closed contact of the second time relay is connected with the change-over switch, and the second normally closed contact of the first intermediate relay is connected with the measured controller through the in-place port;
when the change-over switch is switched to an operation end, the second intermediate relay receives a valve closing control signal through a valve closing port, a coil of the second intermediate relay is electrified, a normally open contact of the second intermediate relay is closed, a first normally closed contact and a second normally closed contact of the second intermediate relay are both opened, a coil of the second time relay is electrified when the normally open contact of the second intermediate relay is closed, and the time-delay closed contact of the second time relay is controlled to be closed according to the preset valve closing time length, and a valve closing signal is output to a measured controller through a valve closing port.
In one embodiment, the fault feedback circuit includes a third intermediate relay including a coil and a normally closed contact; the coil of the third intermediate relay is connected with the change-over switch, the coil of the third intermediate relay is connected with the measured controller through a fault port, and the normally closed contact of the third intermediate relay is connected with the coil of the first time relay and the coil of the second time relay;
when the change-over switch is switched to the fault feedback end, the coil of the third intermediate relay is electrified, the normally closed contact of the third intermediate relay is disconnected, and a fault feedback signal is output to the controlled controller through the fault port.
In one embodiment, the device further comprises a reset circuit, the transfer switch further comprises a reset terminal, the reset circuit is connected with the transfer switch, the reset circuit is connected with the protection circuit, and the reset circuit is connected with the fault feedback circuit; the reset circuit is used for carrying out reset control on the test equipment when the change-over switch is switched to the reset end.
In one embodiment, the reset circuit comprises a fourth intermediate relay, the fourth intermediate relay comprises a coil and a normally closed contact, the coil of the fourth intermediate relay is connected with the change-over switch, the normally closed contact of the fourth intermediate relay is connected with the normally closed contact of the third intermediate relay, and the normally closed contact of the fourth intermediate relay is connected with the protection circuit;
when the change-over switch is switched to the reset end, the coil of the fourth intermediate relay is electrified, the normally closed contact of the fourth intermediate relay is disconnected, and the coil of the first intermediate relay, the coil of the second intermediate relay, the coil of the first time relay and the coil of the second time relay are all powered off.
In one embodiment, the device further comprises an operation indicator light, a fault indicator light and a reset indicator light, wherein the operation indicator light is connected with the protection circuit, is connected with the normally closed contact of the third intermediate relay, and is connected with the normally closed contact of the fourth intermediate relay; the fault indicator lamp is connected with the protection circuit and connected with the coil of the third intermediate relay; the reset indicator light is connected with the fault port and connected with the coil of the fourth intermediate relay;
the operation indicator lamp is used for lighting when the change-over switch is switched to the operation end; the fault indicator lamp is used for lighting when the change-over switch is switched to the fault feedback end; the reset indicator light is used for lighting when the change-over switch is switched to the reset end.
The test equipment of the group control system control cabinet comprises a plurality of test circuits and a change-over switch under different test flows, wherein the plurality of test circuits are connected with the change-over switch, and the plurality of test circuits are connected with a tested controller of the control cabinet; the change-over switch is used for switching the test flow of the controlled controller, and the test circuit is used for carrying out simulation test of the corresponding test flow on the controlled controller according to the test flow switched by the change-over switch lock. The test equipment is used as the simulation equipment of the electric butterfly valve, the tested controller is connected with the test circuit of the corresponding test flow of the test equipment, the test circuit of the corresponding test flow carries out simulation test of the corresponding test flow on the tested controller according to the switching state of the change-over switch, the control condition of the tested controller on the electric butterfly valve under various field working conditions can be simulated and detected through the test equipment, and the test convenience is improved.
Drawings
FIG. 1 is a block diagram of a test apparatus of the group control system control cabinet of FIG. 1 in one embodiment;
FIG. 2 is a block diagram of another embodiment of a test apparatus of the group control system control cabinet of FIG. 2;
FIG. 3 is a block diagram of a test apparatus of the group control system control cabinet of yet another embodiment;
FIG. 4 is a circuit block diagram of test equipment of the group control system control cabinet of FIG. 4 in one embodiment;
FIG. 5 is a block diagram of a test apparatus of the group control system control cabinet of FIG. 5 in one embodiment;
fig. 6 is a tooling large scale diagram of the test equipment of the group control system control cabinet of fig. 6 in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In one embodiment, as shown in fig. 1, a test device for a control cabinet of a group control system is provided, and the test device can be applied to a control cabinet of a central air conditioner water system to test the control condition of a controller and a control valve of an electric butterfly valve controlled by a programming program in the controller. Specifically, the device includes a change-over switch 100 and a plurality of test circuits 200 under different test flows, wherein the plurality of test circuits 200 are all connected with the change-over switch 100, and the plurality of test circuits 200 are all connected with a tested controller of a control cabinet.
The change-over switch 100 is used for switching the test flow of the controller to be tested. The test equipment can test a plurality of processes of the tested controller, and a tester can test the corresponding processes of the tested controller through the change-over switch 100, so that the control condition of the tested controller on the electric butterfly valve under various field working conditions is simulated and detected through one test equipment.
The test circuit 200 is used for performing an analog test of a corresponding test procedure on the tested controller according to the test procedure switched by the change-over switch 100. When a tester switches the corresponding test flow of the test equipment through the change-over switch 100, the test circuit 200 performs the simulation test of the corresponding test flow on the tested controller. It can be understood that the tested controller is further connected to a detecting device, various qualified parameter indexes of the qualified controller are pre-stored in the detecting device, and the testing circuit 200 sends corresponding signals to the tested controller after performing corresponding test flow simulation on the tested controller, so that a tester can compare the signals obtained by the corresponding flow of the tested controller with the corresponding qualified parameter indexes through the detecting device, and determine whether the tested controller is qualified. It will be appreciated that the controller under test may be an integral part of the test equipment, or may be an external device for determining whether the controller under test is acceptable.
The test equipment of the group control system control cabinet comprises a plurality of test circuits and a change-over switch under different test flows, wherein the plurality of test circuits are connected with the change-over switch, and the plurality of test circuits are connected with a tested controller of the control cabinet; the change-over switch is used for switching the test flow of the controlled controller, and the test circuit is used for carrying out simulation test of the corresponding test flow on the controlled controller according to the test flow switched by the change-over switch lock. The test equipment is used as the simulation equipment of the electric butterfly valve, the tested controller is connected with the test circuit of the corresponding test flow of the test equipment, the test circuit of the corresponding test flow carries out simulation test of the corresponding test flow on the tested controller according to the switching state of the change-over switch, the control condition of the tested controller on the electric butterfly valve under various field working conditions can be simulated and detected through the test equipment, and the test convenience is improved.
In one embodiment, the test procedure includes a valve opening test procedure, a valve closing test procedure, and a fault feedback test procedure, the change-over switch 100 includes an operation end and a fault feedback end, the test circuit 200 includes a valve opening circuit 220, a valve closing circuit 240, and a fault feedback circuit 260, the valve opening circuit 220 is connected to the valve closing circuit 240, the fault feedback circuit 260 is connected to the valve opening circuit 220 and the valve closing circuit 240, the valve opening circuit 220, the valve closing circuit 240, and the fault feedback circuit 260 are all connected to the change-over switch 100, the valve opening circuit 220 is connected to the controller under test, the valve closing circuit 240 is connected to the controller under test, and the fault feedback circuit 260 is connected to the controller under test.
The valve opening circuit 220 is configured to receive a valve opening control signal output by the measured controller when the change-over switch 100 is switched to the operation end, and perform a valve opening process simulation according to the valve opening control signal. Specifically, the received valve opening control signal may be manually input by a tester through a detection device connected to the controlled controller, or may be automatically sent out by the controlled controller according to a pre-stored program, and after receiving the valve opening control signal, the valve opening circuit 220 simulates a valve opening process. In one embodiment, whether the tested controller can normally issue a valve opening control signal is used as one of the conditions for judging whether the valve opening test flow of the tested controller is qualified.
The valve closing circuit 240 is configured to receive a valve closing control signal when the change-over switch 100 is switched to the operation end, and perform a valve closing process simulation according to the valve closing control signal. Specifically, the received valve closing control signal may be manually input by a tester through a detection device connected to the controlled controller, or may be automatically sent out by the controlled controller according to a pre-stored program, and after receiving the valve closing control signal, the valve closing circuit 200 simulates a valve opening process. In one embodiment, the measured controller can normally issue a valve closing control signal as one of the conditions for determining whether the valve closing test flow of the measured controller is acceptable.
The fault feedback circuit 260 is configured to perform fault feedback process simulation when the change-over switch 100 is switched to the fault feedback terminal. Specifically, when the change-over switch 100 is switched to the fault feedback end, the valve opening circuit 220 and the valve closing circuit 240 are not operated any more, and the fault feedback circuit 260 performs fault feedback flow simulation.
In one embodiment, as shown in fig. 3, the test apparatus further includes a protection circuit 300, wherein the valve opening circuit 220, the valve closing circuit 240 and the fault feedback circuit 260 are all connected to an external power source through the protection circuit 300, and the protection circuit 400 is used to automatically disconnect the power source when the test apparatus is over-current. Specifically, the power source connected to the test equipment is 220V ac, so in order to protect the circuit components when the circuits are idle, a protection circuit is added when the power source is connected, and when the test equipment is over-current, the protection circuit 300 automatically disconnects the power source protection components, thereby protecting the circuits and prolonging the service life of the test equipment. In one embodiment, the protection circuit 300 is a 2P circuit breaker, and it is understood that the specific device of the protection circuit 300 is not unique, and the protection requirement of each circuit component is satisfied.
In one embodiment, the valve opening circuit 220 is further configured to output a valve opening signal to the controlled controller after performing the valve opening process simulation according to the valve opening control signal. The controller to be tested can perform the next action according to the internal program according to the in-place signal output by the valve opening circuit 220. When the controlled controller can correctly send out the valve opening control signal, receives the valve opening signal output by the valve opening circuit 220 and can perform the next action according to the internal program, the valve opening flow of the controlled controller and the internal program thereof is qualified; if the tested controller can not correctly send out the valve opening signal or can not carry out the next action according to the internal program after receiving the valve opening signal, the valve opening flow of the tested controller and the internal program thereof is not qualified.
The valve closing circuit 240 is further configured to output a valve closing signal to the controlled controller after performing a valve closing process simulation according to the valve closing control signal. The measured controller can perform the next action according to the internal program according to the in-place closing signal output by the valve closing circuit 240. When the controlled controller can correctly send the valve closing control signal, receives the valve closing signal output by the valve closing circuit 240 and can perform the next action according to the internal program, the valve closing flow of the controlled controller and the internal program thereof is qualified; if the tested controller can not correctly send the valve closing signal or can not perform the next action according to the internal program after receiving the in-place opening signal, the valve closing flow of the tested controller and the internal program thereof is not qualified.
The fault feedback circuit 260 is further configured to output a fault feedback signal to the controlled controller after performing the fault feedback process. When the fault feedback circuit 260 simulates a fault feedback flow, the valve opening circuit 220 and the valve closing circuit 240 do not work any more, and meanwhile, a high-level signal is output to the controlled controller as a fault feedback signal, the controlled controller executes a corresponding program after obtaining the fault feedback signal, and when the controlled controller can receive the fault feedback signal and can perform the next action according to an internal program, the fault feedback flow of the controlled controller and the internal program thereof is qualified; if the controlled controller receives the fault feedback signal and cannot perform the next action according to the internal program, the fault feedback flow of the controlled controller and the internal program thereof is not qualified.
Specifically, the detection device is an upper computer, the tested controller can analyze the test result by connecting the upper computer, the upper computer sends a corresponding test flow driving instruction to the test equipment, the test equipment tests through a corresponding test circuit according to the corresponding test flow driving instruction, and whether the corresponding test flow of the tested controller is qualified or not is judged by a pre-stored qualified parameter index in the upper computer.
It can be understood that whether the detected controller and the internal program thereof are qualified or not needs to be tested respectively for the valve opening flow, the valve closing flow and the fault feedback flow, and when the detected controller is detected according to the sequence of the valve opening flow, the valve closing flow and the fault feedback flow and is qualified, the detected controller and the internal program thereof are qualified, and the detected controller is a qualified controller; when any one test flow of the tested controller is unqualified, the tested controller and the internal program thereof are unqualified, and the tested controller is an unqualified controller and is required to be checked and corrected.
In one embodiment, as shown in FIG. 4, the valve opening circuit 220 includes a first intermediate relay KA1 and a first time relay 224, the first intermediate relay KA1 including a coil KA1-0, a normally open contact KA1-3, a first normally closed contact KA1-1, and a second normally closed contact KA1-2; the first time relay KT1 includes a coil KT1-0 and a time-delay closed contact KT1-1.
The coil KA1-0 of the first intermediate relay KA1 is connected with a protection circuit, and the coil KA1-0 of the first intermediate relay KA1 is connected with a controlled controller through a valve opening port; the normally open contact KA1-3 of the first intermediate relay KA1 is connected with the protection circuit 300, the normally open contact KA1-3 of the first intermediate relay KA1 is connected with the valve closing circuit 240, the coil KA1-0 of the first time relay KA1 is connected with the valve closing circuit 240, and the coil KA1-0 of the first time relay KA1 is connected with the fault feedback circuit 260; the first normally closed contact KA1-1 of the first intermediate relay KA1 is connected with the valve closing circuit 240; the delay closed contact KT1-1 of the first time relay KT1 is connected with the protection circuit 300, the delay closed contact KT1-1 of the first time relay KT1 is connected with the change-over switch 100, and the delay closed contact KT1-1 of the first time relay KT1 is connected with an in-place port through the valve closing circuit 240 and is connected with a measured controller through the in-place port; the second normally closed contact KA1-2 of the first intermediate relay KA1 is connected to the valve closing circuit 240.
Specifically, when the change-over switch 100 is switched to the operation end, the controlled controller issues a valve opening control signal, the first intermediate relay KA1 receives the valve opening control signal, the coil KA1-0 of the first intermediate relay KA1 is electrified, and the normally open contact KA1-3 of the first intermediate relay KA1 is closed; the coil KT1-0 of the first time relay KT1 is electrified when the normally open contact KA1-3 of the first intermediate relay KA1 is closed, the time-lapse closed contact KT1-1 of the first time relay KT1 is controlled to be closed according to the preset valve opening time length, an opening signal is output to an opening port of a measured controller, the time-lapse time length of the time-lapse closed contact KT1-1 of the first time relay KT1 can be specifically set according to actual test requirements, the preset valve opening time length is the time-lapse time length of the time-lapse closed contact KT1-1 of the first time relay KT1, in one embodiment, when the coil of the first time relay KT1 is electrified, the time-lapse closed contact KT1-1 of the first time relay KT1 is closed after 10 seconds, namely the preset valve opening time length is 10 seconds, and the longest time of the first time relay KT1 can be prolonged by 30 seconds.
In one embodiment, as shown in FIG. 4, the valve closing circuit 240 includes a second intermediate relay KA2 and a second time relay KT2, the second intermediate relay KA2 including a coil KA2-0, a normally open contact KA2-3, a first normally closed contact KA2-1, and a second normally closed contact KA2-2; the second time relay KT2 includes a coil KT2-0 and a time-lapse closing contact KT2-1.
The coil KA2-0 of the second intermediate relay KA2 is connected with the protection circuit 300, the second intermediate relay KA2 is connected with the measured controller through a valve closing port, the first normally closed contact KA2-1 of the second intermediate relay KA2 is connected with the normally open contact KA2-3 of the first intermediate relay KA1, and the first normally closed contact KA2-1 of the second intermediate relay KA2 is connected with the coil KT1-0 of the first time relay KT 1; the first normally closed contact KA1-1 of the first intermediate relay KA1 is connected with the normally open contact KA2-3 of the second intermediate relay KA2, the normally open contact KA2-3 of the second intermediate relay KA2 is connected with the protection circuit 300, the first normally closed contact KA1-1 of the first intermediate relay KA1 is connected with the coil KT2-0 of the second time relay KT2, and the coil KT1-1 of the first time relay KT1 and the coil KT2-0 of the second time relay KT2 are both connected with the fault feedback circuit 260; the second normally closed contact KA2-2 of the second intermediate relay KA2 is connected with the delay closed contact KT1-1 of the first time relay KT1, and the second normally closed contact KA2-2 of the second intermediate relay KA2 is connected with a to-be-measured controller through an in-place opening port; the second normally closed contact KA1-2 of the first intermediate relay KA1 is connected with the delay closed contact KT2-1 of the second time relay KT2, the delay closed contact KT2-1 of the second time relay KT2 is connected with the protection circuit 300, the delay closed contact KT2-1 of the second time relay KT2 is connected with the change-over switch 100, and the second normally closed contact KA1-2 of the first intermediate relay KA1 is connected with a measured controller through a closed-in-place port.
Specifically, when the change-over switch 100 is switched to the operation end, the second intermediate relay KA2 issues a valve closing control signal, the second intermediate relay KA2 receives the valve closing control signal, the coil KA2-0 of the second intermediate relay KA2 is energized, the normally open contact KA2-3 of the second intermediate relay KA2 is closed, the coil KT2-0 of the second time relay KT2 is energized when the normally open contact KA2-3 of the second intermediate relay KA2 is closed, and the delay closing contact KT2-1 of the second time relay KT2 is controlled to be closed according to a preset valve closing time length, the delay time of the delay closing contact KT2-1 of the second time relay KT2 can be specifically set according to an actual test requirement, in one embodiment, when the coil KT2 is energized, the delay closing time of the second time relay KT2 is 10s, and the delay closing time of the second time relay KT2 is 30s.
It can be understood that when the coil of the first time relay KT1 is electrified during the valve opening process, the first normally closed contact KA1-1 and the second normally closed contact KA1-2 of the first intermediate relay KA1 are both disconnected, and the valve is closed and the power is supplied in place in a cut-off manner, so that misoperation is avoided, and the valve opening process test accuracy is improved. When the coil KT2-1 of the second time relay KT2 is electrified during the valve closing process, the normally closed contact KA2-3 of the second intermediate relay KA2 is disconnected, the valve is cut off and the power is supplied in place, so that misoperation is avoided, and the valve closing process test accuracy is improved.
In one embodiment, the fault feedback circuit 260 includes a third intermediate relay KA3, the third intermediate relay KA3 includes a coil KA3-0 and a normally closed contact KA3-1, the coil KA3-0 of the third intermediate relay KA3 is connected to the transfer switch 100, the coil KA3-0 of the third intermediate relay KA3 is connected to the measured controller through the fault port, and the normally closed contact KA3-1 of the third intermediate relay KA3 is connected to the coil KA1-0 of the first time relay KA1 and the coil KT2-0 of the second time relay KT 2.
Specifically, when the change-over switch is switched to the fault feedback end, the third intermediate relay KA3 receives a fault control signal, the coil KA3-0 of the third intermediate relay KA3 is electrified, the normally closed contact KA3-1 of the third intermediate relay KA3 is disconnected, the first time relay KT1 and the second time relay KT2 lose power, an in-place opening signal and an in-place closing signal are not output any more, meanwhile, a high-level signal is output to a fault port of the controlled controller as a fault feedback signal, and the controlled controller obtains the fault feedback signal to execute a corresponding program.
In one embodiment, as shown in fig. 5, the apparatus further includes a reset circuit 400, the change-over switch 100 further includes a reset terminal, the reset circuit 400 is connected to the change-over switch 100, the reset circuit 400 is connected to the protection circuit 300, and the reset circuit 400 is connected to the fault feedback circuit 260; the reset circuit 400 is used for performing reset control on the test equipment when the change-over switch 100 is switched to the reset terminal. Specifically, after the test is finished, the internal relay contacts are in an initial position when the test equipment is tested next time due to different suction and disconnection conditions of the relay contacts, so that the test equipment needs to be subjected to reset control after each test flow simulation of the tested controller by the test equipment, the test equipment is in an initial state, and the test accuracy is improved.
In one embodiment, as shown in fig. 4, the reset circuit 400 includes a fourth intermediate relay KA4, the fourth intermediate relay KA4 includes a coil KA4-0 and a normally closed contact KA4-1, the coil KA4-0 of the fourth intermediate relay KA4 is connected to the transfer switch 100, the normally closed contact KA4-1 of the fourth intermediate relay KA4 is connected to the normally closed contact KA3-1 of the third intermediate relay KA3, and the normally closed contact KA4-1 of the fourth intermediate relay KA4 is connected to the protection circuit 300.
When the change-over switch is switched to the reset end, the coil KA4-0 of the fourth intermediate relay KA4 in the reset state is electrified, the normally closed contact KA4-1 of the fourth intermediate relay KA4 is disconnected, the power supply of the control circuit of the test equipment is cut off, namely, the coil KA1-0 of the first intermediate relay KA1, the coil KA1-0 of the second intermediate relay KA1, the coil KT1-0 of the first time relay KT1 and the coil KT2-0 of the second time relay KT2 are all in power failure, and the test equipment does not work any more. In fig. 4-DS connection terminal 1 represents the zero line; 2 represents a live wire; 3 represents opening a valve; 4 represents a valve closing; 5 indicates on-bit, 6 indicates off-bit, and 7 indicates failure. When the tested controller performs valve opening flow test, a valve opening control signal is input to the first intermediate relay KA1 through a No. 3 port; receiving an in-place signal through a port No. 5; when the tested controller performs valve closing flow test, a valve closing control signal is input to the second intermediate relay KA2 through a No. 4 port; receiving an in-place signal through a port No. 6; and when the tested controller performs fault feedback flow test, receiving a fault feedback signal through a port No. 7. Fig. 6 is a large tooling diagram of a test device, where a change-over switch and three indicator lamps are installed on a test device box, in this embodiment, by taking a neutral gear "0" as an operation gear of the change-over switch 100 when the test device performs a valve opening process and a valve closing process test, the indicator lamps are convenient for observing what working states the test device is in a reset state, an operation state and a fault state in the test process, and the change-over switch can switch the fault feedback state and the reset state of the test device in the test process.
In one embodiment, as shown in fig. 4, the apparatus further includes an operation indicator lamp 500, a fault indicator lamp RO, and a reset indicator lamp YO, the operation indicator lamp 500 is connected to the protection circuit 300, the operation indicator lamp 500 is connected to the normally closed contact KA3-1 of the third intermediate relay KA3, and the operation indicator lamp 500 is connected to the normally closed contact KA4-1 of the fourth intermediate relay KA 4; the fault indicator lamp RO is connected with the protection circuit 300, and the fault indicator lamp RO is connected with a coil KA3-0 of the third intermediate relay KA 3; the reset indicator lamp YO is connected with the fault port, and the reset indicator lamp YO is connected with a coil KA4-0 of the fourth intermediate relay KA 4;
the running indicator lamp 500 is used for lighting when the change-over switch 100 is switched to the running end; the fault indication lamp RO is used to light when the change-over switch 100 is switched to the fault feedback end; the reset indicator YO is used to turn on when the change-over switch 100 is switched to the reset terminal. Therefore, the user can know the test state of the current test equipment according to the corresponding lighting condition of the indicator lamp, and the test convenience is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. The test equipment of the group control system control cabinet is characterized by comprising a change-over switch and a plurality of test circuits under different test flows, wherein the plurality of test circuits are connected with the change-over switch, and the plurality of test circuits are connected with a tested controller of the control cabinet;
the change-over switch is used for switching the test flow of the tested controller;
the test circuit is used for performing simulation test of the corresponding test flow on the tested controller according to the test flow switched by the change-over switch;
the test process comprises a valve opening test process, a valve closing test process and a fault feedback test process, the change-over switch comprises an operation end and a fault feedback end, the test circuit comprises a valve opening circuit, a valve closing circuit and a fault feedback circuit, the valve opening circuit, the valve closing circuit and the fault feedback circuit are all connected with the change-over switch, the valve opening circuit is connected with the tested controller, the valve closing circuit is connected with the tested controller, and the fault feedback circuit is connected with the tested controller;
the valve opening circuit is used for receiving a valve opening control signal output by the controlled controller when the change-over switch is switched to the operation end, performing valve opening process simulation according to the valve opening control signal, and judging whether the controlled controller can normally send the valve opening control signal or not as one of conditions for judging whether the valve opening test flow of the controlled controller is qualified or not;
the valve closing circuit is used for receiving a valve closing control signal output by the controlled controller when the change-over switch is switched to the operation end, performing valve closing process simulation according to the valve closing control signal, and judging whether the controlled controller can normally send the valve closing control signal or not as one of conditions for judging whether the valve closing test flow of the controlled controller is qualified or not;
the fault feedback circuit is used for performing fault feedback flow simulation when the change-over switch is switched to the fault feedback end.
2. The test apparatus of a group control system control cabinet of claim 1, wherein the valve opening circuit is connected to the valve closing circuit, and the fault feedback circuit is connected to the valve opening circuit and the valve closing circuit.
3. The test equipment of a group control system control cabinet according to claim 2, further comprising a protection circuit, wherein the valve opening circuit, the valve closing circuit and the fault feedback circuit are all connected to an external power supply through the protection circuit, and the protection circuit is used for automatically disconnecting the power supply when the test equipment is over-current.
4. The test equipment of the group control system control cabinet according to claim 3, wherein the valve opening circuit is further configured to output an in-place opening signal to the controlled controller after performing a valve opening process simulation according to the valve opening control signal; the valve closing circuit is also used for outputting a valve closing signal to the controlled controller after performing valve closing process simulation according to the valve closing control signal; the fault feedback circuit is used for outputting a fault feedback signal to the controlled controller after the fault feedback process is carried out.
5. The test equipment of a group control system control cabinet of claim 4, wherein the valve opening circuit comprises a first intermediate relay and a first time relay, the first intermediate relay comprising a coil, a normally open contact, a first normally closed contact, and a second normally closed contact; the first time relay comprises a coil and a delay closing contact;
the coil of the first intermediate relay is connected with the protection circuit, and the coil of the first intermediate relay is connected with the controlled controller through a valve opening port; the normally open contact of the first intermediate relay is connected with the protection circuit, the normally open contact of the first intermediate relay is connected with the valve closing circuit, the coil of the first time relay is connected with the valve closing circuit, and the coil of the first time relay is connected with the fault feedback circuit; the first normally closed contact of the first intermediate relay is connected with the valve closing circuit; the delay closing contact of the first time relay is connected with the protection circuit, the delay closing contact of the first time relay is connected with the change-over switch, and the delay closing contact of the first time relay is connected with an in-place port through the valve closing circuit and is connected with the measured controller through the in-place port; the second normally closed contact of the first intermediate relay is connected with the valve closing circuit;
when the change-over switch is switched to the operation end, the first intermediate relay receives a valve opening control signal through the valve opening port, a coil of the first intermediate relay is electrified, a normally open contact of the first intermediate relay is closed, and a first normally closed contact and a second normally closed contact of the first intermediate relay are both opened; the coil of the first time relay is electrified when the normally open contact of the first intermediate relay is closed, the delay closing contact of the first time relay is controlled to be closed according to the preset valve opening time length, and an in-place opening signal is output to the measured controller through the in-place opening port.
6. The test equipment of a group control system control cabinet of claim 5, wherein the valve closing circuit comprises a second intermediate relay and a second time relay, the second intermediate relay comprising a coil, a normally open contact, a first normally closed contact, and a second normally closed contact; the second time relay comprises a coil and a delay closing contact;
the coil of the second intermediate relay is connected with the protection circuit, the second intermediate relay is connected with the measured controller through a valve closing port, the first normally closed contact of the second intermediate relay is connected with the normally open contact of the first intermediate relay, and the first normally closed contact of the second intermediate relay is connected with the coil of the first time relay; the first normally closed contact of the first intermediate relay is connected with the normally open contact of the second intermediate relay, the normally open contact of the second intermediate relay is connected with the protection circuit, the first normally closed contact of the first intermediate relay is connected with the coil of the second time relay, and the coil of the first time relay and the coil of the second time relay are both connected with the fault feedback circuit; the second normally closed contact of the second intermediate relay is connected with the delay closed contact of the first time relay, and the second normally closed contact of the second intermediate relay is connected with the controlled controller through an in-place opening port; the second normally closed contact of the first intermediate relay is connected with the delay closed contact of the second time relay, the delay closed contact of the second time relay is connected with the protection circuit, the delay closed contact of the second time relay is connected with the change-over switch, and the second normally closed contact of the first intermediate relay is connected with the controlled controller through a closed-in-place port;
when the change-over switch is switched to the operation end, the second intermediate relay receives a valve closing control signal through the valve closing port, a coil of the second intermediate relay is electrified, a normally open contact of the second intermediate relay is closed, a first normally closed contact and a second normally closed contact of the second intermediate relay are both opened, the coil of the second time relay is electrified when the normally open contact of the second intermediate relay is closed, and the time-delay closed contact of the second time relay is controlled to be closed according to the preset valve closing time length, and a close signal is output to the controlled controller through the valve closing port.
7. The test equipment of a group control system control cabinet of claim 6, wherein the fault feedback circuit comprises a third intermediate relay comprising a coil and a normally closed contact; the coil of the third intermediate relay is connected with the change-over switch, the coil of the third intermediate relay is connected with the measured controller through a fault port, and the normally closed contact of the third intermediate relay is connected with the coil of the first time relay and the coil of the second time relay;
when the change-over switch is switched to the fault feedback end, the coil of the third intermediate relay is electrified, the normally closed contact of the third intermediate relay is disconnected, and a fault feedback signal is output to the tested controller through the fault port.
8. The test device of a group control system control cabinet of claim 7, further comprising a reset circuit, wherein the transfer switch further comprises a reset terminal, wherein the reset circuit is connected to the transfer switch, wherein the reset circuit is connected to the protection circuit, and wherein the reset circuit is connected to the fault feedback circuit; the reset circuit is used for resetting and controlling the test equipment when the change-over switch is switched to the reset end.
9. The test device of a group control system control cabinet according to claim 8, wherein the reset circuit comprises a fourth intermediate relay, the fourth intermediate relay comprises a coil and a normally closed contact, the coil of the fourth intermediate relay is connected to the change-over switch, the normally closed contact of the fourth intermediate relay is connected to the normally closed contact of the third intermediate relay, and the normally closed contact of the fourth intermediate relay is connected to the protection circuit;
when the change-over switch is switched to the reset end, the coil of the fourth intermediate relay is electrified, the normally closed contact of the fourth intermediate relay is disconnected, and the coil of the first intermediate relay, the coil of the second intermediate relay, the coil of the first time relay and the coil of the second time relay are all powered off.
10. The test device of a group control system control cabinet of claim 9, further comprising an operation indicator, a fault indicator, and a reset indicator, the operation indicator being connected to the protection circuit, the operation indicator being connected to a normally closed contact of the third intermediate relay, the operation indicator being connected to a normally closed contact of the fourth intermediate relay; the fault indicator lamp is connected with the protection circuit and is connected with the coil of the third intermediate relay; the reset indicator light is connected with the fault port and connected with the coil of the fourth intermediate relay;
the operation indicator lamp is used for lighting when the change-over switch is switched to the operation end; the fault indicator lamp is used for lighting when the change-over switch is switched to the fault feedback end; the reset indicator light is used for lighting when the change-over switch is switched to the reset end.
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