CN110426580B - Control cabinet inspection method and device of water cooling machine room group control system - Google Patents
Control cabinet inspection method and device of water cooling machine room group control system Download PDFInfo
- Publication number
- CN110426580B CN110426580B CN201910708328.1A CN201910708328A CN110426580B CN 110426580 B CN110426580 B CN 110426580B CN 201910708328 A CN201910708328 A CN 201910708328A CN 110426580 B CN110426580 B CN 110426580B
- Authority
- CN
- China
- Prior art keywords
- test
- control cabinet
- motor
- unit
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The invention discloses a control cabinet inspection method and device for a water cooling machine room group control system. Wherein, the device includes: the device comprises a unit loop test module, a motor loop test module, an electric butterfly valve loop test module, an analog quantity test module and a communication test module. By using the detection device with the function of the real water system equipment, the invention can simulate the operation condition of the controller control water system equipment under various working conditions, is convenient for observing the test result and reduces the detection cost of the control cabinet.
Description
Technical Field
The invention relates to the technical field of units, in particular to a control cabinet inspection method and device for a water cooling machine room group control system.
Background
At present, the inspection method of the control cabinet used by the water chiller room group control system in the industry is mainly divided into two parts, namely, the insulation voltage resistance, the electrical clearance, the creepage distance, the EMC electromagnetic compatibility, the strong electricity wiring and other tests are carried out aiming at electrical safety; and the second is to check and correct the wiring of the electric control circuit in the control cabinet. The electric safety inspection industry is mature, but most of the industry still stays in traditional methods such as comparison drawings and manpower verification for the inspection and correction of the wiring and the wiring of the electric control circuit in the control cabinet, and the inspection of a controller and a preset program only stays in a laboratory or an office without field level inspection.
The existing electric control cabinet inspection method has the following problems:
1. the wiring, the wiring and the routing in the control cabinet are verified by manually contrasting drawings, so that time and labor are wasted, and errors are easy to occur;
2. the control condition of the controller on various water system devices under the working condition of a field cannot be simulated and checked;
3. the controller and the program recorded in the controller are only tested by using digital or analog input/output control signals, and the running condition of the controller connected with water system equipment cannot be determined.
Therefore, the original test method for controlling the wiring and the wire arrangement of the electric control circuit in the group control system control cabinet applied to the water system and controlling the working condition of the water system equipment by the controller is relatively serious in limitation.
Aiming at the problems existing in the inspection method of the electrical control cabinet in the prior art, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a control cabinet inspection method and device of a water cooling machine room group control system, which at least solve the problem that the control condition of a controller on various water system devices under the working condition of a field cannot be simulated and inspected in the prior art.
In order to solve the above technical problem, the present invention provides a control cabinet inspection device, wherein the inspection device comprises:
the unit loop test module is connected with the unit of the tested control cabinet and used for executing unit loop test;
the motor loop test module is connected with a motor of the tested control cabinet and used for executing motor loop test;
the electric butterfly valve loop test module is connected with an electric butterfly valve of the measured control cabinet and used for executing electric butterfly valve loop test;
the analog quantity testing module is connected with the measured control cabinet and used for executing analog quantity testing aiming at a sensor interface and an analog input/output interface of the measured control cabinet;
and the communication test module is connected with the measured control cabinet and used for executing the communication test of the measured control cabinet.
Further, the unit loop test module includes:
the unit start-stop loop test unit is used for sending a unit start signal and/or a unit stop signal to the unit, receiving and outputting a test result fed back after the unit start signal and/or the unit stop signal are processed by a test program in the tested control cabinet;
and the unit fault testing unit is used for sending a unit fault signal to the unit under the condition that the unit is started, and receiving and outputting a test result fed back after the test program processes the unit fault signal.
Further, the motor loop test module includes:
the motor start-stop loop test unit is used for sending a motor on signal and/or a motor off signal to the motor, receiving and outputting a test result fed back after the motor on signal and/or the motor off signal is processed by a test program in the tested control cabinet;
the motor state loop testing unit is used for sending a motor state signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor state signal is processed by the testing program;
the motor frequency state loop testing unit is used for sending a motor frequency state signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor frequency state signal is processed by the testing program;
the motor frequency control circuit testing unit is used for sending a motor frequency feedback value to the motor under the condition that the motor is started, receiving the frequency feedback value processed by the testing program and receiving the frequency control value sent by the testing program; obtaining a test result by comparing the processed frequency feedback value with the frequency control value;
and the motor fault test unit is used for sending a motor fault signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor fault signal is processed by the test program.
Further, the electric butterfly valve loop test module comprises:
the electric butterfly valve opening and arrival loop testing unit is used for sending an electric butterfly valve opening control signal to the electric butterfly valve, receiving a test result fed back after a test program in the tested control cabinet processes the electric butterfly valve opening control signal, and restoring a test result point after a preset time interval; the test result point is also used for receiving and processing an electric butterfly valve opening position signal sent by the tested control cabinet to obtain a test result if the electric butterfly valve opening control signal does not disappear after the test result point is restored for a preset time;
the electric butterfly valve closing and in-place closing loop test is used for sending an electric butterfly valve closing control signal to the electric butterfly valve, receiving a test result fed back after a test program in the tested control cabinet processes the electric butterfly valve closing control signal, and restoring a test result point after a preset time interval; the electric butterfly valve closing in-place signal sent by the monitored control cabinet is received and processed to obtain a test result if the electric butterfly valve closing control signal does not disappear after the test result point is restored for a preset time;
and the electric butterfly valve fault test unit is used for sending an electric butterfly valve fault signal to the electric butterfly valve under the condition that the electric butterfly valve is opened, and receiving and outputting a test result fed back after the electric butterfly valve fault signal is processed by the test program.
Further, the analog quantity testing module comprises:
the sensor circuit testing unit is used for sending a sensor feedback value to the measured control cabinet, receiving the sensor feedback value processed by a testing program in the measured control cabinet and receiving a sensor processing value sent by the testing program; obtaining a test result by comparing the processed sensor feedback value with the processed sensor value;
the electric bypass valve circuit testing unit is used for sending an opening feedback value of the electric bypass valve to the tested control cabinet, receiving the opening feedback value of the electric bypass valve processed by the testing program and receiving an opening control value sent by the testing program; and obtaining a test result by comparing the processed opening feedback value of the electric bypass valve with the opening control value.
Further, the communication test module is specifically configured to send an equipment feedback value to the tested control cabinet, receive an equipment feedback value processed by a test program in the tested control cabinet, and receive a processed value sent by the test program; and obtaining a test result by comparing the processed equipment feedback value with the processed value.
Further, the device feedback value includes at least one of:
instantaneous flow, accumulated flow, refrigeration power, accumulated refrigeration capacity, motor power consumption, total motor power consumption, motor frequency setting, motor frequency feedback, unit power consumption and total unit power consumption.
Further, the test program is preset in the tested control cabinet.
The invention also provides a control cabinet inspection device, which is characterized by comprising the following components:
the PLC main controller is used for uploading and issuing test signals to the measured control cabinet;
the communication module is used for realizing wired or wireless communication with the measured control cabinet;
the analog input module comprises an AI analog input module and an AO analog output module, and is used for realizing the input and output of analog signals.
Further, the inspection apparatus further comprises:
the touch screen is used for displaying the test type, the test process and the test result;
an industrial switch for forming a local area network;
and the intermediate relay is used for converting strong and weak electric control signals.
The invention also provides a control cabinet inspection method, which is applied to the control cabinet inspection device and is characterized by comprising the following steps:
establishing connection between each test module in the inspection device and a corresponding component in the tested control cabinet;
triggering each test module to send corresponding test signals to corresponding components in the tested control cabinet so as to test items, and receiving the test signals processed by test programs to obtain a test result of each test item; and the test program is preset in the tested control cabinet.
Further, after obtaining the test result, the method further comprises: if the test results of all the test items pass, judging that the tested control cabinet passes the inspection; and if at least one test item is not passed, judging that the tested control cabinet is not passed.
Further, after determining that the measured control cabinet fails the inspection, the method further includes: and reminding the tested control cabinet to be checked until the tested control cabinet passes the inspection.
Further, the test module includes at least one of: the device comprises a unit loop test module, a motor loop test module, an electric butterfly valve loop test module, an analog quantity test module and a communication test module.
The invention also provides a computer-readable storage medium, on which a computer program is stored, characterized in that the program realizes the above-mentioned method when executed by a processor.
By applying the technical scheme of the invention, the inspection device with the function of the real water system equipment is used, the operation condition of the controller control water system equipment under various working conditions can be simulated, the observation of the test result is convenient, and the inspection cost of the control cabinet is reduced.
Drawings
FIG. 1 is a schematic diagram of various modules that a control cabinet inspection device has according to an embodiment of the present invention;
FIG. 2 is an electrical component architecture diagram of a control cabinet inspection device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a problem verifiable by the control cabinet verification device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a touch screen primary interface of a control cabinet inspection device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a touch screen unit loop test area interface of the control cabinet inspection device according to an embodiment of the invention;
FIG. 6 is a schematic diagram of a touch screen motor loop test interface of a control cabinet inspection device according to an embodiment of the invention;
FIG. 7 is a schematic diagram of a touch screen electric butterfly valve loop test interface of the control cabinet inspection device according to an embodiment of the invention;
FIG. 8 is a schematic diagram of a touch screen analog testing interface of a control cabinet inspection device according to an embodiment of the invention;
FIG. 9 is a schematic diagram of a touch screen communication test interface of a control cabinet inspection device according to an embodiment of the invention;
FIG. 10 is a flow chart of a control cabinet inspection method according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in the article or device in which the element is included.
Alternative embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the various modules of a control cabinet inspection device according to an embodiment of the present invention, as shown in fig. 1, which involves the following tests:
the unit loop test module is connected with the unit of the tested control cabinet and used for executing unit loop test;
the motor loop test module is connected with a motor of the tested control cabinet and used for executing motor loop test;
the electric butterfly valve loop test module is connected with an electric butterfly valve of the measured control cabinet and used for executing electric butterfly valve loop test;
the analog quantity testing module is connected with the measured control cabinet and used for executing analog quantity testing aiming at a sensor interface and an analog input/output interface of the measured control cabinet;
and the communication test module is connected with the measured control cabinet and used for executing the communication test of the measured control cabinet.
The specific test procedure of each module is described below.
1) Unit return circuit test module includes:
the unit start-stop loop test unit is used for sending a unit start signal and/or a unit stop signal to the unit, receiving and outputting a test result fed back after the unit start signal and/or the unit stop signal are processed by a test program in the tested control cabinet;
and the unit fault test unit is used for sending a unit fault signal to the unit under the condition that the unit is started, and receiving and outputting a test result fed back after the test program processes the unit fault signal.
2) Motor circuit test module includes:
the motor start-stop loop test unit is used for sending a motor start signal and/or a motor off signal to the motor, receiving and outputting a test result fed back after the motor start signal and/or the motor off signal are processed by a test program in the tested control cabinet;
the motor state loop testing unit is used for sending a motor state signal to the motor under the condition that the motor is started, and receiving and outputting a testing result fed back after the motor state signal is processed by a testing program;
the motor frequency state loop testing unit is used for sending a motor frequency state signal to the motor under the condition that the motor is started, and receiving and outputting a testing result fed back after the testing program processes the motor frequency state signal;
the motor frequency control circuit testing unit is used for sending a motor frequency feedback value to the motor under the condition that the motor is started, receiving the frequency feedback value processed by the testing program and receiving the frequency control value sent by the testing program; obtaining a test result by comparing the processed frequency feedback value with the frequency control value;
and the motor fault test unit is used for sending a motor fault signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor fault signal is processed by the test program.
3) Electric butterfly valve return circuit test module includes:
the electric butterfly valve opening and arrival loop testing unit is used for sending an electric butterfly valve opening control signal to the electric butterfly valve, receiving a test result fed back after a test program in the tested control cabinet processes the electric butterfly valve opening control signal, and restoring a test result point after a preset time interval; the test result point is also used for receiving and processing an electric butterfly valve opening position signal sent by the tested control cabinet to obtain a test result if the electric butterfly valve opening control signal does not disappear after the test result point is restored for a preset time;
the electric butterfly valve closing and in-place closing loop test is used for sending an electric butterfly valve closing control signal to the electric butterfly valve, receiving a test result fed back after a test program in a tested control cabinet processes the electric butterfly valve closing control signal, and restoring a test result point after a preset time interval; the device is also used for receiving and processing the electric butterfly valve closing in-place signal sent by the monitored control cabinet to obtain a test result if the electric butterfly valve closing control signal does not disappear after the test result point is restored for a preset time;
and the electric butterfly valve fault test unit is used for sending an electric butterfly valve fault signal to the electric butterfly valve under the condition that the electric butterfly valve is opened, and receiving and outputting a test result fed back after the electric butterfly valve fault signal is processed by a test program.
4) An analog quantity testing module, comprising:
the sensor circuit testing unit is used for sending a sensor feedback value to the measured control cabinet, receiving the sensor feedback value processed by a testing program in the measured control cabinet and receiving a sensor processing value sent by the testing program; obtaining a test result by comparing the processed sensor feedback value with the processed sensor processing value;
the electric bypass valve circuit testing unit is used for sending an opening feedback value of the electric bypass valve to the tested control cabinet, receiving the opening feedback value of the electric bypass valve processed by the testing program and receiving an opening control value sent by the testing program; and obtaining a test result by comparing the processed opening feedback value and the opening control value of the electric bypass valve.
5) The communication test module is specifically used for sending an equipment feedback value to the measured control cabinet, receiving the equipment feedback value processed by the test program in the measured control cabinet and receiving a processing value sent by the test program; and obtaining a test result by comparing the processed equipment feedback value with the processed value. The device feedback value at least comprises one of the following values: instantaneous flow, accumulated flow, refrigeration power, accumulated refrigeration capacity, motor power consumption, total motor power consumption, motor frequency setting, motor frequency feedback, unit power consumption and total unit power consumption.
It should be noted that the test program is preset in the controlled control cabinet. The test program can automatically capture the control signal sent by the checking device in the running state and feed back a preset signal to the checking device.
The embodiment uses the verifying attachment who has real water system equipment function, can simulate the operational aspect of controller control water system equipment under the various operating modes, and the observation of the test result of being convenient for reduces switch board inspection cost.
Fig. 2 is an electrical component architecture diagram of a control cabinet inspection device according to an embodiment of the present invention, as shown in fig. 2, the inspection device relating to electrical components as follows:
the PLC main controller is used for uploading and issuing test signals to the measured control cabinet;
the communication module is used for realizing wired or wireless communication with the measured control cabinet;
the analog input module comprises an AI analog input module and an AO analog output module, and is used for realizing the input and output of analog signals.
Further comprising:
the touch screen is used for displaying the test type, the test process and the test result;
an industrial switch for forming a local area network;
and the intermediate relay is used for converting strong and weak electric control signals.
The control cabinet inspection device is composed of a touch screen, a PLC (programmable logic controller), an industrial-grade switch and a small amount of intermediate relays, has a simple circuit structure, and can simulate the working processes of communication, opening, operation, frequency conversion, fault alarm, closing and the like of related equipment through a water system equipment model arranged in the controller, including a water chilling unit, a fixed/variable frequency water pump, a fixed/variable frequency cooling tower fan, an electric butterfly valve, an electric bypass valve, a water treatment instrument and the like to test whether an electric control cabinet connected with the inspection device works normally or not and whether related electric loops and the controller execute correctly or not, so that the actual control condition of the electric control cabinet on controlled equipment under various field working conditions can be simulated and detected.
The inspection device uses a 7-inch touch screen and consists of a small number of relay devices and sheet metal parts, the adopted PLC only uses a CPU module, a communication module and two AI/AO modules, the cost is low, the adopted PLC and a network switch are industrial products, the anti-interference performance is high, and the inspection device is suitable for inspection work under various field working conditions.
FIG. 3 is a schematic diagram of a problem verifiable by a control cabinet verification device according to an embodiment of the present invention, including:
1. the electric control cabinet communication line can be checked whether to be normal or not, and whether the communication receiving and sending are correct or not can be checked;
2. whether the wiring of the controller of the electric control cabinet is correct or not can be checked;
3. the wiring of the motor loop of the electrical control cabinet can be checked whether to be correct or not;
4. the circuit wiring of the electric butterfly valve and the electric bypass valve of the electric control cabinet can be checked to be correct;
5. the main controller program in the electric control cabinet can be checked whether the program is logically correct.
The switch board verifying attachment of this embodiment, components and parts and function that involve as follows:
1. a 2P circuit breaker for protecting the control cabinet inspection device circuit;
2. a switching power supply for supplying DC24V DC power to the controller;
3. a 7 inch touch screen for display and operator operation;
4. an industrial network switch for local area network composition;
5. the PLC master controller for supporting the operation of the control cabinet inspection device comprises 1 master controller CPU module, 1 RS485/422 communication module, 1 analog input AI module and 1 analog output AO module;
6. a DC24V intermediate relay for main controller signal conversion;
7. and an AC230V intermediate relay for conversion of control signals of external devices.
The control cabinet inspection device of the embodiment relates to the following detailed junction board blocks:
1. the XP1 terminal row of the inspection device is connected with a measured control cabinet water chilling unit and a motor start-stop part;
2. the XP2 terminal row of the inspection device is connected with each electric butterfly valve loop part of the monitored control cabinet;
3. the XP3 terminal block of the inspection device is connected with the motor frequency conversion loop part of the monitored control cabinet;
4. the XP4 terminal block of the inspection device is connected with a sensor loop of a measured control cabinet or an analog input/output signal to be measured and a communication part.
Fig. 4 is a schematic diagram of a main interface of a touch screen of the control cabinet inspection device according to the embodiment of the invention, and the main interface is composed of five test board blocks, namely, a unit loop test, a motor loop test, an electric butterfly valve loop test, an analog loop test and a communication loop test, and each test board block can click to enter a corresponding test interface.
Fig. 5 is a schematic diagram of an interface of a touch screen unit loop test area of a control cabinet inspection device according to an embodiment of the invention, which can perform 2 unit simulation tests at a time,
the single unit simulation test comprises the following steps:
1. the switch control key of the machine set can output a switch signal to the tested electrical control cabinet;
2. the fault state key of the machine set can output a fault signal to the tested electrical control cabinet;
3. and displaying the test result of the unit, wherein the test result is green if the test is not problematic, and the test result is red if the test is problematic.
Fig. 6 is a schematic diagram of a touch screen motor loop test interface of a control cabinet inspection device according to an embodiment of the present invention, which can perform 2 motor simulation tests at a time, where a single motor simulation test includes:
1. the local/remote state key of the motor can output local/remote signals to the tested electrical control cabinet;
2. the switch control key of the motor can output a switch signal to the tested electrical control cabinet;
3. the fault state key of the motor can output a fault signal to the tested electrical control cabinet;
4. the power frequency/frequency conversion state key of the motor can output a power frequency/frequency conversion signal to the tested electrical control cabinet;
5. the running state point of the motor can display whether the checking device simulates the running of the motor;
6. the fault state point of the motor can display whether the checking device simulates the motor fault;
7. the switch output point of the motor can display whether the checking device simulates the switch of the motor;
8. the frequency feedback display frame of the motor can feed back a frequency signal to the tested electrical control cabinet;
9. the frequency output display card of the motor can display the frequency signal issued by the electrical control to be tested.
10. And displaying the test result of the motor, wherein the test result is green if the test is not problematic, and the test result is red if the test is problematic.
Fig. 7 is a schematic diagram of a touch screen electric butterfly valve loop test interface of the control cabinet inspection device according to the embodiment of the invention, 4 electric butterfly valve simulation tests can be performed at a time, and a single electric butterfly valve simulation test includes:
1. the local/remote state key of the electric butterfly valve can output local/remote signals to the tested electric control cabinet;
2. the switch control key of the electric butterfly valve can output a switch signal to the tested electric control cabinet;
3. the fault state key of the electric butterfly valve can output a fault signal to the tested electric control cabinet;
4. the opening position point of the electric butterfly valve can output an opening position signal to the tested electric control cabinet after clicking;
5. the closing position point of the electric butterfly valve can output a closing in-place signal to the tested electric control cabinet after being clicked;
6. the switch output point of the electric butterfly valve can display whether the inspection device simulates the switch of the electric butterfly valve;
7. the fault state point of the electric butterfly valve can display whether the inspection device simulates the fault of the electric butterfly valve;
8. and the test result display points of the electric butterfly valve are green if the test is not problematic, and red if the test is problematic.
FIG. 8 is a schematic diagram of a touch screen analog testing interface of the control cabinet inspection device according to an embodiment of the present invention, which can perform analog testing of 4 sensors and 1 electric bypass valve at a time.
The single sensor simulation test comprises:
1. the sensor returns a numerical value frame which can output corresponding analog quantity numerical values to the tested electrical control cabinet;
2. the sensor type is selected, and three sensors of temperature, pressure and flow can be selected;
3. and displaying the test result, wherein if the test is not problematic, the test result is green, and if the test is problematic, the test result is red.
Fig. 9 is a schematic diagram of a touch screen communication test interface of a control cabinet inspection device according to an embodiment of the present invention, which is capable of performing a flow sensor, a heat meter, an electric energy meter, and a communication mode frequency converter simulation test, and includes:
1. the flow sensor/calorimeter part can output corresponding instantaneous flow value, accumulated flow value, refrigerating power value and accumulated refrigerating quantity value to the tested electrical control cabinet through RS485/422 communication;
2. the electric energy meter part can output corresponding power consumption power value, total power consumption value, unit power consumption power value and total unit power consumption value to the tested electric control cabinet through RS485/422 communication;
3. the communication mode frequency converter part can output corresponding motor frequency setting values and motor frequency feedback values to the tested electrical control cabinet through RS485/422 communication;
4. and displaying the test result, wherein if the test is not problematic, the test result is green, and if the test is problematic, the test result is red.
The following introduces the test flow of the control cabinet inspection device, which is mainly divided into preparation before testing, a unit loop test flow, a motor loop test flow, an electric butterfly valve loop test flow, an analog quantity test flow and a communication test flow, and the specific contents are as follows:
1. preparation work before testing:
firstly, connecting a module to be tested of the tested electrical control cabinet with a corresponding module of the testing device through a cable;
burning a preset test program to the tested control cabinet, wherein the test program can automatically capture a control signal sent by the testing device in a running state and feed back the preset signal to the testing device;
and finally, starting the inspection device.
The pre-test preparation work is ended.
2. Unit loop test flow:
(1) testing a unit start-stop loop:
firstly, sending a unit on signal on a checking device, and testing after the tested electrical control cabinet receives the unit on signal
The program processes the signal, feeds back a test result to the inspection device, outputs an on-signal test result, and automatically restores the test result point after outputting the on-signal test result for 10 s;
secondly, sending a unit off signal on the inspection device, after the tested electrical control cabinet receives the unit off signal, processing the signal by the test program, feeding back a test result to the inspection device, outputting a test result of the unit off signal, and automatically restoring the test result point after outputting the test result of the unit off signal for 10 s.
And finishing the test of the unit start-stop loop.
(2) Testing unit faults:
under the condition that the unit is started, a unit fault signal is sent to the inspection device, after the tested electrical control cabinet receives the unit fault signal, the test program processes the signal, feeds back a test result to the inspection device, outputs a fault signal test result, and automatically restores the test result point after outputting the fault signal test result for 10 s.
3. A motor loop test process:
(1) testing a motor start-stop loop:
firstly, sending a motor on signal on a testing device, after a tested electrical control cabinet receives the motor on signal, processing the signal by a testing program, feeding back a testing result to the testing device, outputting a testing result of the on signal, and automatically restoring a testing result point after outputting a testing result of the on signal for 10 s;
secondly, sending a motor off signal on the inspection device, after the tested electrical control cabinet receives the motor off signal, processing the signal by a test program, feeding back a test result to the inspection device, outputting a test result of the off signal, and automatically restoring the test result point after outputting the test result of the off signal for 10 s.
And finishing the motor start-stop loop test.
(2) Motor local/remote status loop test:
under the condition that the motor is started, a motor local/remote signal is sent to the testing device, after the tested electrical control cabinet receives the motor local/remote signal, the testing program processes the signal, feeds back a testing result to the testing device, outputs a local/remote signal testing result, and automatically restores a testing result point after outputting the local/remote signal testing result for 10 s.
The motor local/remote status loop test ends.
(3) Testing a power frequency/variable frequency state loop of the motor:
under the condition that the motor is started, a motor power frequency/variable frequency signal is sent on the inspection device, after the electrical control cabinet to be inspected receives the motor power frequency/variable frequency signal, the test program processes the signal, feeds back a test result to the inspection device, outputs a power frequency/variable frequency signal test result and outputs a power frequency/variable frequency signal test result for 10s
And then automatically restoring the test result point.
And finishing the test of the motor power frequency/variable frequency state loop.
(4) Testing a motor frequency control circuit:
under the condition that the motor is started, a motor frequency feedback value is input into the inspection device, after the electrical control cabinet to be inspected receives the motor frequency feedback value, the testing program processes the frequency feedback value and issues a frequency control value to the inspection device, the inspection device outputs a frequency control circuit testing result by comparing the frequency feedback value with the frequency control value, and the testing result is automatically recovered after the frequency control circuit testing result is output for 10 s.
And finishing the test of the motor frequency control circuit.
(5) Testing the motor fault:
under the condition that the motor is started, a motor fault signal is sent to the inspection device, after the electrical control cabinet to be tested receives the motor fault signal, the test program processes the signal, feeds back a test result to the inspection device, outputs a fault signal test result, and automatically restores the test result point after outputting the fault signal test result for 10 s.
And finishing the motor fault test.
4. Electric butterfly valve loop test flow:
(1) opening the valve of the electric butterfly valve and opening the return circuit to test:
firstly, sending an electric butterfly valve opening control signal on a checking device, after an electric control cabinet to be tested receives the electric butterfly valve opening control signal, processing the signal by a test program, feeding back a test result to the checking device, outputting an opening control signal test result, and automatically restoring the test result point after outputting an opening control signal test result for 10 s;
and secondly, after the test result point of the opening control signal is restored for 5s, if the opening control signal still exists, the tested electric control cabinet sends an electric butterfly valve opening position signal to the testing device, the testing device receives and processes the signal, outputs a position opening signal test result, and automatically restores the test result point after outputting a position opening signal test result for 10 s.
And (5) opening the electric butterfly valve and ending the test of the return circuit.
(2) Electric butterfly valve closing and in-place closing loop test:
firstly, an electric butterfly valve closing control signal is sent on a testing device, after the tested electric control cabinet receives the electric butterfly valve closing control signal, a test program processes the signal, feeds back a test result to the testing device, outputs a closing control signal test result, and automatically restores the test result point after outputting a closing control signal test result for 10 s;
and secondly, after the test result point of the closing control signal is restored for 5s, if the closing control signal still exists, the tested electric control cabinet sends an electric butterfly valve closing in-place signal to the testing device, the testing device receives and processes the signal, outputs a closing in-place signal test result, and automatically restores the test result point after outputting a closing in-place signal test result for 10 s.
And (5) ending the valve closing and in-place closing loop test of the electric butterfly valve.
(3) Electric butterfly valve fault test:
under the condition that the electric butterfly valve is opened, an electric butterfly valve fault signal is sent to the inspection device, after the electric control cabinet to be tested receives the electric butterfly valve fault signal, the signal is processed by a test program, a test result is fed back to the inspection device, a fault signal test result is output, and a test result point is automatically recovered after the fault signal test result is output for 10 s.
And finishing the fault test of the electric butterfly valve.
5. Simulation of the quantity test process:
(1) and (3) testing a sensor circuit:
the feedback value of the sensor is input into the inspection device, after the electrical control cabinet to be inspected receives the feedback value of the sensor, the test program processes the feedback value and simultaneously issues the processed value of the sensor to the inspection device, the inspection device outputs a test result of the sensor circuit by comparing the feedback value of the sensor with the processed value of the sensor, and the test result point is automatically recovered after the test result of the sensor circuit is output for 10 s.
The sensor circuit test is finished.
(2) Testing an electric bypass valve circuit:
inputting an opening feedback value of the electric bypass valve on the inspection device, after the tested electric control cabinet receives the opening feedback value of the electric bypass valve, processing the opening feedback value by a test program, simultaneously issuing an opening control value to the inspection device, outputting a circuit test result of the electric bypass valve by the inspection device by comparing the opening feedback value with the opening control value, and automatically restoring the test result point after outputting a circuit test result of the electric bypass valve for 10 s.
And the electric bypass valve circuit test is finished.
6. A communication test flow:
inputting the feedback value (instantaneous flow, accumulated flow, refrigeration power, accumulated refrigeration quantity, motor power consumption power, motor power consumption total quantity, motor frequency setting, motor frequency feedback, machine set power consumption power and machine set power consumption total quantity) of the equipment to be tested on the testing device, processing the feedback value by the testing program after the tested electrical control cabinet receives the feedback value of the equipment related to the electric bypass valve, simultaneously issuing a processing value to the testing device, comparing the feedback value with the processing value by the testing device, outputting a testing result of the communication circuit, and automatically restoring the testing result point after outputting the testing result of the communication circuit for 10 s.
And finishing the test of the communication circuit.
In summary, all test flows have been completed.
And (4) all the project test results are 'passed', namely the test result display points are all green, and then the tested electrical control cabinet is judged to have no problem in the related control circuit, and the tested electrical control cabinet passes the test.
If the test result of one item is 'failure', namely the display point of the test result is red, the related control circuit fault of the tested electrical control cabinet is judged, the tested electrical control cabinet cannot pass the test, the circuit, the components and the like need to be checked and tested, and the test is carried out after the problem is eliminated until the test passes.
Fig. 10 is a flowchart of a control cabinet inspection method according to an embodiment of the present invention, as shown in fig. 10, the method including the steps of:
s101, establishing connection between each test module in the inspection device and a corresponding component in the tested control cabinet;
step S102, triggering each test module to send corresponding test signals to corresponding components in the tested control cabinet so as to carry out test items, and receiving the test signals processed by the test programs to obtain the test result of each test item; wherein, the test program is preset in the tested control cabinet.
The test module mentioned in this embodiment includes at least one of the following: the device comprises a unit loop test module, a motor loop test module, an electric butterfly valve loop test module, an analog quantity test module and a communication test module.
After the test results are obtained, if the test results of all the test items pass, judging that the tested control cabinet passes the inspection; and if at least one test item is not passed, judging that the tested control cabinet is not passed. And then, the measured control cabinet is reminded to be checked until the measured control cabinet passes the inspection.
The embodiment uses the verifying attachment who has real water system equipment function, can simulate the operational aspect of controller control water system equipment under the various operating modes, and the observation of the test result of being convenient for reduces switch board inspection cost.
The embodiment of the present invention provides software for implementing the technical solutions described in the above embodiments and preferred embodiments.
The embodiment of the invention provides a nonvolatile computer storage medium, wherein a computer executable instruction is stored in the computer storage medium and can execute a control cabinet inspection method in any method embodiment.
The storage medium stores the software, and the storage medium includes but is not limited to: optical disks, floppy disks, hard disks, erasable memory, etc.
From the above description, it can be seen that the control cabinet inspection method and apparatus provided by the present invention are applied to a group control system of a cold water machine room, and perform simulation detection on the system before the tested control cabinet leaves the factory. Mainly solves the following technical problems:
1. the defects of long time consumption, high cost and large error of control line arrangement, wiring and routing of a manual inspection control cabinet are overcome;
2. the problem that the control condition of the controller on water system equipment under various field working conditions cannot be simulated and detected by the conventional tests of the controller and a burning program in the controller, which are applied to a group control system control cabinet of a water system;
3. the limitation that only digital quantity or analog quantity input and output control signals are used for testing the controller and a program is burnt in the controller, but real equipment is not used for testing the controller is solved;
4. the problems of shortage of test equipment of the control cabinet and high inspection cost are solved.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. A control cabinet inspection device, the inspection device comprising:
the unit loop test module is connected with the unit of the tested control cabinet and used for executing unit loop test;
the motor loop test module is connected with a motor of the tested control cabinet and used for executing motor loop test;
the electric butterfly valve loop test module is connected with an electric butterfly valve of the measured control cabinet and used for executing electric butterfly valve loop test;
the analog quantity testing module is connected with the measured control cabinet and used for executing analog quantity testing aiming at a sensor interface and an analog input/output interface of the measured control cabinet;
the communication test module is connected with the measured control cabinet and used for executing the communication test of the measured control cabinet; the device feedback value receiving module is specifically used for sending a device feedback value to the tested control cabinet, receiving a device feedback value processed by a test program in the tested control cabinet, and receiving a processing value sent by the test program; and obtaining a test result by comparing the processed equipment feedback value with the processed value.
2. The apparatus of claim 1, wherein the unit loop test module comprises:
the unit start-stop loop test unit is used for sending a unit start signal and/or a unit stop signal to the unit, receiving and outputting a test result fed back after the unit start signal and/or the unit stop signal are processed by a test program in the tested control cabinet;
and the unit fault testing unit is used for sending a unit fault signal to the unit under the condition that the unit is started, and receiving and outputting a test result fed back after the test program processes the unit fault signal.
3. The apparatus of claim 1, wherein the motor loop test module comprises:
the motor start-stop loop test unit is used for sending a motor on signal and/or a motor off signal to the motor, receiving and outputting a test result fed back after the motor on signal and/or the motor off signal is processed by a test program in the tested control cabinet;
the motor state loop testing unit is used for sending a motor state signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor state signal is processed by the testing program;
the motor frequency state loop testing unit is used for sending a motor frequency state signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor frequency state signal is processed by the testing program;
the motor frequency control circuit testing unit is used for sending a motor frequency feedback value to the motor under the condition that the motor is started, receiving the frequency feedback value processed by the testing program and receiving the frequency control value sent by the testing program; obtaining a test result by comparing the processed frequency feedback value with the frequency control value;
and the motor fault test unit is used for sending a motor fault signal to the motor under the condition that the motor is started, and receiving and outputting a test result fed back after the motor fault signal is processed by the test program.
4. The apparatus of claim 1, wherein the electric butterfly valve loop test module comprises:
the electric butterfly valve opening and arrival loop testing unit is used for sending an electric butterfly valve opening control signal to the electric butterfly valve, receiving a test result fed back after a test program in the tested control cabinet processes the electric butterfly valve opening control signal, and restoring a test result point after a preset time interval; the test result point is also used for receiving and processing an electric butterfly valve opening position signal sent by the tested control cabinet to obtain a test result if the electric butterfly valve opening control signal does not disappear after the test result point is restored for a preset time;
the electric butterfly valve closing and in-place closing loop test is used for sending an electric butterfly valve closing control signal to the electric butterfly valve, receiving a test result fed back after a test program in the tested control cabinet processes the electric butterfly valve closing control signal, and restoring a test result point after a preset time interval; the electric butterfly valve closing in-place signal sent by the monitored control cabinet is received and processed to obtain a test result if the electric butterfly valve closing control signal does not disappear after the test result point is restored for a preset time;
and the electric butterfly valve fault test unit is used for sending an electric butterfly valve fault signal to the electric butterfly valve under the condition that the electric butterfly valve is opened, and receiving and outputting a test result fed back after the electric butterfly valve fault signal is processed by the test program.
5. The apparatus of claim 1, wherein the analog testing module comprises:
the sensor circuit testing unit is used for sending a sensor feedback value to the measured control cabinet, receiving the sensor feedback value processed by a testing program in the measured control cabinet and receiving a sensor processing value sent by the testing program; obtaining a test result by comparing the processed sensor feedback value with the processed sensor value;
the electric bypass valve circuit testing unit is used for sending an opening feedback value of the electric bypass valve to the tested control cabinet, receiving the opening feedback value of the electric bypass valve processed by the testing program and receiving an opening control value sent by the testing program; and obtaining a test result by comparing the processed opening feedback value of the electric bypass valve with the opening control value.
6. The apparatus of claim 1, wherein the device feedback values comprise at least one of:
instantaneous flow, accumulated flow, refrigeration power, accumulated refrigeration capacity, motor power consumption, total motor power consumption, motor frequency setting, motor frequency feedback, unit power consumption and total unit power consumption.
7. The apparatus of claim 2,
the test program is preset in the tested control cabinet.
8. A control cabinet inspection device, comprising the control cabinet inspection device of claim 1, further comprising:
the PLC main controller is used for uploading and issuing test signals to the measured control cabinet;
the communication module is used for realizing wired or wireless communication with the measured control cabinet;
the AI analog input module and the AO analog output module are used for realizing the input and output of analog signals;
the touch screen is used for displaying the test type, the test process and the test result; the main interface of the touch screen consists of five test board blocks, namely a unit loop test, a motor loop test, an electric butterfly valve loop test, an analog loop test and a communication loop test, and each test board block can be clicked to enter a corresponding test interface.
9. The apparatus of claim 8, wherein the verification device further comprises:
an industrial switch for forming a local area network;
and the intermediate relay is used for converting strong and weak electric control signals.
10. A control cabinet inspection method applied to the control cabinet inspection device according to any one of claims 1 to 7, the method comprising:
establishing connection between each test module in the inspection device and a corresponding component in the tested control cabinet;
triggering each test module to send corresponding test signals to corresponding components in the tested control cabinet so as to test items, and receiving the test signals processed by the test program to obtain the test result of each test item; and the test program is preset in the tested control cabinet.
11. The method of claim 10, wherein after obtaining the test results, the method further comprises:
if the test results of all the test items pass, judging that the tested control cabinet passes the inspection;
and if at least one test item is not passed, judging that the tested control cabinet is not passed.
12. The method of claim 11, wherein after determining that the measured control cabinet fails the test, the method further comprises:
and reminding the tested control cabinet to be checked until the tested control cabinet passes the inspection.
13. The method of claim 10, wherein the test module comprises at least one of:
the device comprises a unit loop test module, a motor loop test module, an electric butterfly valve loop test module, an analog quantity test module and a communication test module.
14. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 10 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708328.1A CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708328.1A CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110426580A CN110426580A (en) | 2019-11-08 |
| CN110426580B true CN110426580B (en) | 2021-02-02 |
Family
ID=68413761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910708328.1A Active CN110426580B (en) | 2019-08-01 | 2019-08-01 | Control cabinet inspection method and device of water cooling machine room group control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111966077A (en) * | 2020-08-13 | 2020-11-20 | 格力电器（合肥）有限公司 | Test equipment and test method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144285B (en) * | 2007-10-25 | 2010-09-29 | 中国建筑设计研究院 | Experiment device for simulating house draining system and detecting method thereof |
| CN101515014B (en) * | 2009-03-17 | 2011-01-19 | 中国西电电气股份有限公司 | Analog device of control cabinet matched with detection switch apparatus |
| CN101739023B (en) * | 2009-11-17 | 2011-10-19 | 中国电子科技集团公司第三十八研究所 | Car body controller simulation system |
| CN202067144U (en) * | 2011-04-22 | 2011-12-07 | 天津鑫宝龙机械集团有限公司 | Test bed of elevator control cabinet |
| US9939795B2 (en) * | 2013-01-24 | 2018-04-10 | Trane International Inc. | Dynamic simulated motor for controller testing |
| CN205953231U (en) * | 2016-08-30 | 2017-02-15 | 四川科莱电梯股份有限公司 | Lift control cabinet detecting system |
| CN107819857A (en) * | 2017-11-14 | 2018-03-20 | 合肥奇骏自动化控制有限公司 | A kind of water supply network remote monitoring system |
| CN208399603U (en) * | 2018-05-30 | 2019-01-18 | 上海烟草机械有限责任公司 | The detection system of electrical control cabinet |
| CN108803579A (en) * | 2018-08-13 | 2018-11-13 | 珠海格力电器股份有限公司 | Simulation testing device and method, chiller plant control system and air-conditioning equipment |
| CN108803583B (en) * | 2018-08-20 | 2023-08-25 | 珠海格力电器股份有限公司 | Test equipment of group control system control cabinet |
-
2019
- 2019-08-01 CN CN201910708328.1A patent/CN110426580B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110426580A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109752609B (en) | Electric power equipment operation reliability testing device, testing center and testing judgment method | |
| CN103051065A (en) | Distribution-automation distributed type FA (feeder automation) linkage test method and system | |
| CN105158718B (en) | A kind of fault detector integrated test facility and test system | |
| CN104020762A (en) | Automatic feeder testing method free of networking | |
| CN106935089A (en) | Power information acquisition terminal installation training system and method | |
| CN205608420U (en) | Alternating current -direct current electric network line relay protection real -time simulation system that connects in parallel | |
| CN103278728A (en) | Method and system for diagnosing interturn short circuit fault of generator rotor | |
| CN104076807B (en) | The adjustment method of the automated system of intelligent substation | |
| CN106771730A (en) | The intelligent substation real-time calibration equipment of protection device analog quantity sampling circuit and method | |
| CN111551809A (en) | Synchronous whole-group automatic testing method and system for secondary system of intelligent substation | |
| CN106093636B (en) | The analog quantity check method and device of the secondary device of smart grid | |
| CN110426580B (en) | Control cabinet inspection method and device of water cooling machine room group control system | |
| CN108089083A (en) | Alternating-current charging pile detecting system | |
| CN104656718A (en) | Method for testing environmental adaptability of optical fiber sensing system | |
| CN207318702U (en) | Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis | |
| CN114415625A (en) | Intelligent inspection system and method for safety parameters of mine explosion-proof electrical appliance | |
| CN104267283A (en) | Platform and method for testing process layer to spacer layer of digital substation | |
| CN113533889A (en) | Spare power automatic switching uninterrupted visual test method and device based on digital analog circuit breaker | |
| CN104502815A (en) | Testing device for non-linear resistor type resonance eliminator | |
| CN112051467A (en) | Automatic testing method for energy storage high-voltage box product | |
| CN111880093A (en) | Simulation method, device and system for whole set starting test of generator | |
| CN109061406B (en) | Testing device and method for relay signal processor of nuclear power station reactor protection system | |
| CN208188216U (en) | A kind of transformer high-voltage experiment calculation machine intelligent observing and controlling system | |
| CN208239866U (en) | A kind of exerciser automatic electrical control system | |
| CN112213633A (en) | Automatic testing device and testing method for service life test of phase change switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |