Siemens PLC fault diagnosis simulation device for CDC-16 turnout tamping wagon

Abstract

The utility model discloses a Siemens PLC fault diagnosis simulation device for a CDC-16 turnout tamping wagon. The Siemens PLC fault diagnosis simulation device is used for solving the problem that no special simulation and diagnosis device for the CDC-16 turnout tamping wagon exists in the prior art. A PC all-in-one machine, a switching power supply, a human cloud module, a switch, a 1200 PLC module, a 1500 PLC module, a tamping wagon power simulation module and a tamping wagon accelerator given quantity simulation module are installed on the back plate, the tamping wagon power simulation module comprises a frequency converter and an alternating current motor, and the alternating current motor is connected to the 1200 PLC module through the frequency converter; the tamping wagon accelerator given quantity simulation module comprises a stepping motor, a lead screw sliding block mechanism, an electromagnetic proximity switch, a scale, a pointer and an encoder, and the lead screw sliding block mechanism comprises a lead screw, a guide column, a sliding block and an installation side plate. The Siemens PLC fault diagnosis simulation device for the CDC-16 turnout tamping wagon can realize simulation of a frequency converter and a motor, simulation of a stepping motor and a driver, Siemens Profinet communication, a remote monitoring system and the like.

Description

Technical Field

[0001] The present technology relates to a set of fault diagnosis simulation devices for the fault diagnosis simulation of Siemens PLC in CDC-16 switch tamping cars, belonging to the technical field of simulating the actions of CDC-16 switch tamping cars and conducting simulations. Background Art

[0002] To help the drivers and technicians of large machinery in railway track maintenance sections learn to simulate the systematic fault phenomena that occur in on-site Siemens PLCs, such as simulating faults such as alarms of electrical components, communication faults, short circuits in input and output channels, short circuit fault diagnosis, and system data loss in CDC-16 switch tamping cars; simulating the reasons for the two phenomena of CPU shutdown and non-shutdown when hardware and communication faults occur in the PLC system, etc.

[0003] Currently, in railway track maintenance sections, drivers and technicians mainly rely on various manuals and textbooks for learning, lacking corresponding electrical training devices. Summary of the Invention

[0004] To solve the above problems, based on the logic control signal table and electrical schematic diagram, this Siemens PLC fault diagnosis simulation device for CDC-16 switch tamping cars has been developed through a combination of software and hardware.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] CDC-16 Switch Tamping Machine Siemens PLC Fault Diagnosis Simulation Device, including a backplane, characterized in that a PC all-in-one, a switching power supply, a manned cloud module, a switch, a 1200PLC module, a 1500PLC module, a tamping machine power simulation module, and a tamping machine throttle given quantity simulation module are installed on the backplane. Among them, the switch is a network cable connection aggregation point and synchronously connects the PC all-in-one, the manned cloud module, the 1200PLC module, and the 1500PLC module; the tamping machine power simulation module includes a frequency converter and an AC motor, and the AC motor is connected to the 1200PLC module through the frequency converter; the tamping machine throttle given quantity simulation module includes a stepping motor, a lead screw slider mechanism, an electromagnetic proximity switch, a scale, a pointer, and an encoder. Among them, the lead screw slider mechanism includes a lead screw, a guide post, a slider, and a mounting side plate. The two ends of the lead screw are rotatably installed on the mounting side plate only through bearing components, and the mounting side plate is fixedly installed on the backplane. The two ends of the guide post are fixedly installed on the mounting side plate, and the guide post and the lead screw are parallel to each other. The slider is movably connected to the lead screw and the guide post through a threaded hole and a light hole respectively. The two ends of the lead screw are respectively connected to the stepping motor and the encoder, and the encoder is electrically connected to the 1200PLC module. The stepping motor is connected to the 1200PLC module through a stepping driver. A scale is fixedly installed in the space between the two mounting side plates. The midpoint of the scale is marked as the origin or zero point, and it is sequentially coded and scaled from the origin or zero point to both sides. Electromagnetic proximity switches are respectively arranged at the origin and both sides. The origin is used to mark the origin position, and the electromagnetic proximity switches on both sides are used to identify the forward limit and the reverse limit. The electromagnetic proximity switches are electrically connected to the 1200PLC module. A pointer is installed on the slider. When the pointer reaches one of the electromagnetic proximity switches, the corresponding electromagnetic proximity switch is triggered and outputs a high-level signal to the 1200PLC module.

[0007] Further, it also includes buttons and indicator lights, eight in each group, to control and display the forward and reverse rotation of the AC motor, and the forward and backward movement of the stepping motor.

[0008] Further, it also includes a temperature and humidity sensor module, and the temperature and humidity sensor module is connected to the 1200PLC module.

[0009] Further, the 1500PLC module and the 1200PLC module are electrically connected through Siemens Profinet communication.

[0010] Further, the number of input and output of the 1200PLC module ≥ 8 channels.

[0011] Further, the number of PROFINET IO RT / IRT interfaces of the 1500PLC module is 1.

[0012] The beneficial effects of the present utility model are:

[0013] The Siemens PLC fault diagnosis simulation device for the CDC-16 turnout tamping car can achieve frequency converter and motor simulation, stepper motor and driver simulation, Siemens Profinet communication, remote monitoring system, etc. It realizes the simulation of the reasons for the two phenomena of CPU shutdown and non-shutdown when hardware and communication faults occur in the PLC system. At the same time, the device is also equipped with a YouRenYun wireless monitoring module, which uploads the operation status data to the cloud through the YouRenYun module for easy viewing. The switch makes the data interaction of the stabilizer car simulation system more convenient, and the system information, operations, etc. can all be monitored in real time on mobile phones and remote computer terminals. Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of this device.

[0015] Figure 2 It is a power connection diagram of this device.

[0016] Figure 3 It is a circuit diagram of the 1200PLC.

[0017] Figure 4 It is a circuit diagram of the frequency converter.

[0018] Figure 5 It is the network port of the switch.

[0019] Figure 6 It is the set of switch data network cable connections.

[0020] Figure 7 It is a partial structural diagram of the tamping car throttle given quantity simulation module.

[0021] In the figure:

[0022] 00 backplane,

[0023] 01 PC all-in-one machine,

[0024] 02 switching power supply,

[0025] 03 YouRenYun module,

[0026] 04 switch,

[0027] 05 1200PLC module,

[0028] 06 1500PLC module,

[0029] 07 AC motor,

[0030] 08 frequency converter,

[0031] 09 Stepper motor, 091 Lead screw, 092 Guide post, 093 Slide block, 094 Mounting side plate, 095 Electromagnetic proximity switch, 096 Scale, 097 Pointer, 098 Encoder,

[0032] 10 Stepper driver,

[0033] 11 Temperature and humidity sensor module,

[0034] 12 Button,

[0035] 13 Indicator light. Specific implementation mode

[0036] The Siemens PLC fault diagnosis simulation device for the CDC-475 turnout tamping car develops the Siemens PLC fault diagnosis simulation system for the CDC-475 turnout tamping car by combining software and hardware according to the logic control signal table and the electrical schematic diagram. The system consists of an all-in-one PC 01, a switching power supply 02, a cloud module for people 03, a switch 04, a 1200 PLC module 05, a 1500 PLC module 06, a tamping car power simulation module (including an AC motor 07, a frequency converter 08, etc.), a tamping car throttle given quantity simulation module (including a stepper motor 09, a stepper driver 10, a lead screw, a slide block, etc.), a temperature and humidity sensor module 11, etc., as Figure 1 shown.

[0037] The backplane 00 is a grid board, which is divided into three areas from top to bottom. The uppermost is the all-in-one computer configuration area, the lowermost is the button configuration area, and the middle is the electrical component configuration area. Among them, electrical components such as the switching power supply, the cloud module for people, the switch, the 1200 PLC module, the 1500 PLC module, the frequency converter, the stepper motor, and the stepper driver are configured in the electrical component configuration area. The all-in-one PC 01 is installed in the all-in-one computer configuration area, and a set of mechanical buttons 12 and a set of indicator lights 13 are installed in the button configuration area.

[0038] Furthermore, the above-mentioned all-in-one PC 01 is used to monitor and control all components, and a liquid crystal display screen is used to display the relevant operation interface.

[0039] The switching power supply 02 is used to supply power to the simulation platform equipment, and the power connection is as Figure 2 shown;

[0040] The cloud module for people 03 is used to upload data to the cloud for easy viewing on the mobile phone side and the PC side;

[0041] The switch 04 is used for the network cable connection aggregation point; synchronously connect the above-mentioned all-in-one PC, the cloud module for people, the 1200 PLC module, and the 1500 PLC module and electrically connect them through network cables respectively. The network connection is as Figure 5 and Figure 6 shown, realizing data transmission and exchange.

[0042] The humidity sensor 11 is used to simulate on-site signal acquisition. Its function in the tamping car is to be used for practical training exercises on simulating sensor wiring, signal changes, and how the program processes current and voltage.

[0043] The total control module of the simulation system includes a 1200 PLC module and a 1500 PLC module. The circuit diagram of the 1200 PLC module is as Figure 3 shown. Among them, the 1500 PLC module is a high-performance PLC with a variety of innovative technologies and advanced functions. It can respond quickly, optimize control quality, and improve system performance. It can be flexibly configured with different modules according to requirements and achieve seamless connection and automated control between devices; the 1500 PLC module exchanges data with the 1200 PLC module through Siemens S7 communication.

[0044] The frequency converter 08 and the AC motor 07 are used to simulate the power of the tamping car. The two form a power simulation module for the tamping car. This module is linked with the stepper motor 09, that is, they have a high degree of linkage in the action process. Specifically, the throttle size is expressed and simulated through the stepper motor. The larger the throttle, the higher the speed of the AC motor, and vice versa, the lower the speed of the AC motor. The longer the given distance of the stepper, the faster the running speed of the frequency conversion motor. The above linkage process can be visually expressed through this device.

[0045] The AC motor in this embodiment is a variable-frequency AC motor. Its frequency converter 08 is a commonly used device for variable-frequency speed regulation. The main advantages are energy saving, wide speed regulation range, large starting torque, and reduced starting current. The circuit diagrams of the frequency converter and the stepper driver are as Figure 4 shown.

[0046] The stepper motor 09 and the stepper driver 10 are used to simulate the throttle given amount of the tamping car, that is, to visualize the throttle size. The simulation and operation process is that the longer the stepper motor travels, that is, the larger the throttle given amount, the faster the tamping car moves, that is, the faster the motor rotates.

[0047] Reference Figure 7The above-mentioned throttle setting simulation module of the tamping vehicle includes a stepper motor 09, a screw slider mechanism, an electromagnetic proximity switch 095, a scale 096, a pointer 097, and an encoder 098, wherein the above-mentioned screw slider mechanism includes a screw 091, a guide column 092, a slider 093, and a mounting side plate 094, wherein the two ends of the screw 091 are only rotatably mounted on the mounting side plate 094 through a bearing assembly, and the mounting side plate is fixedly mounted on the above-mentioned back plate 00, and the two ends of the guide column 092 are fixedly mounted on the mounting side plate, and the guide column and the screw exist parallel to each other after installation. And the slider 093 has a wire hole and a light hole, and is movably connected to the above-mentioned screw and guide column respectively, and the above-mentioned stepper motor is fixed on a mounting side plate and connected to drive the screw to rotate through a coupling, and an encoder is installed on another mounting side plate, and the encoder is fixedly connected to the other end of the screw to detect the number of rotations of the screw, and the corresponding encoder 098 is electrically connected to the above-mentioned 1200PLC. A ruler 096 is fixedly installed in the space between the two mounting side plates. The midpoint of the ruler is marked as the origin or zero point, and the scale is sequentially coded from the origin or zero point to both sides. The scale is a unit of length, such as millimeters. An electromagnetic proximity switch 095 is set at the origin and both sides respectively, where the origin is used to mark the origin position, and the electromagnetic proximity switches on both sides are used to mark the forward limit and reverse limit. A steel pointer 097 is installed on the above-mentioned slider. When the steel pointer reaches the above-mentioned electromagnetic proximity switch, the corresponding electromagnetic proximity switch is triggered and outputs a high-level signal.

[0048] Furthermore, the above-mentioned stepper motor 09 is an electric motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. It must be used in conjunction with a dedicated stepper motor driver to rotate. In the automated production process, the programmable controller (PLC) parameters are used to send pulses to the stepper driver. The stepper motor driver drives the stepper motor to rotate according to the received signal. The PLC uses the encoder feedback signal synchronized with the stepper motor to compare with the internal value, and through a complete closed-loop control system, it accurately controls the running trajectory of the stepper motor, and cooperates with the above-mentioned lead screw, slider and pointer to control the running direction of the stepper motor.

[0049] Buttons 12 and indicator lights 13, each group consists of eight, which respectively control the forward and reverse rotation of the frequency conversion motor and the forward and reverse movement of the stepper motor. They are used to simulate the operation and stop of the tamping vehicle and the throttle setting, as well as to practice the input and output wiring methods of the switch signal. The operation process is according to the program instructions. When the corresponding button is pressed, the motor runs and the stepper screw moves forward and backward, and the corresponding indicator light will output an indication.

[0050] The switch makes data interaction of the stable car simulation system easier. System information and operations can be monitored in real time by mobile phones and remote computers. Figure 5 andFigure 6 as shown

[0051] The 1500 PLC module and the 1200 PLC module exchange data through Siemens Profinet communication.

[0052] The Siemens PLC fault diagnosis simulation system for this switch tamping machine can achieve frequency converter and motor simulation, stepper motor and driver simulation, Siemens Profinet communication, remote monitoring system, etc. At the same time, the CDC-16 tamping machine simulation system is also equipped with a YouRenYun wireless monitoring module, which uploads the operation status data to the cloud through the YouRenYun module for easy viewing. The switch makes the data interaction of the stabilizer simulation system more convenient, and the system information, operations, etc. can all be monitored in real time on mobile phones and remote computer terminals.

[0053] (1) Siemens 1200 PLC module

[0054] Number of inputs and outputs: ≥ 8 channels;

[0055] Output type: transistor type;

[0056] Input type: digital;

[0057] Power supply voltage: 24V DC;

[0058] Network type: Ethernet;

[0059] Communication port type: Ethernet;

[0060] Mounting type: DIN rail.

[0061] (2) Siemens 1500 PLC module

[0062] Input type: digital;

[0063] Power supply voltage: 24V DC

[0064] Network type: Ethernet;

[0065] Number of PROFINET IO RT / IRT interfaces: 1;

[0066] Mounting type: DIN rail.

[0067] (3) Stepper motor

[0068] Current: 1.2A

[0069] Output torque: 0.35 Nm

[0070] Wire outlet method: two-phase four-wire lead-out

[0071] (4) Stepper driver parameters

[0072] Power supply voltage: DC 9 - 42V

[0073] Pulse signal: Compatible with 3.3V / 5V / 24V, no need to series - connect resistors

[0074] Current: 4A speed - adaptive circuit, automatic current optimization

[0075] Micro - step resolution: 6400 micro - steps

[0076] Various protections: Over - current, over - voltage, under - voltage, short - circuit, etc. protections

[0077] Offline: Offline (ENA) protection function

[0078] (5) Frequency converter

[0079] Operating voltage: AC 220V

[0080] Rated output current: 1.7A

[0081] Rated input current: 4.5A

[0082] Rated output power: 0.25KW

[0083] The above - described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by relevant technical personnel in the field shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. CDC-16 turnout tamping car Siemens PLC fault diagnosis simulation device, including back panel, characterized in that: A PC all-in-one, a switching power supply, a human cloud module, a switch, a 1200PLC module, a 1500PLC module, a tamping vehicle power simulation module and a tamping vehicle throttle setting simulation module are installed on the back panel, wherein the switch is a network cable connection collection point and synchronously electrically connects the PC all-in-one, the human cloud module, the 1200PLC module and the 1500PLC module; the tamping vehicle power simulation module includes a frequency converter and an AC motor, and the AC motor is connected to the 1200PLC module through the frequency converter; the tamping vehicle throttle setting simulation module includes a stepping motor, a screw slider mechanism, an electromagnetic proximity switch, a ruler, a pointer and an encoder, wherein the screw slider mechanism includes a screw, a guide column, a slider and an installation side plate, wherein both ends of the screw are connected The bearing assembly is only rotatably mounted on the mounting side plate, and the mounting side plate is fixedly mounted on the back plate, and both ends of the guide column are fixedly mounted on the mounting side plate, the guide column and the lead screw are parallel to each other, the slider is movably connected to the lead screw and the guide column respectively, the two ends of the lead screw are respectively connected to the stepper motor and the encoder, and the encoder is electrically connected to the 1200PLC module, the stepper motor is electrically connected to the 1200PLC module through a stepper driver, a ruler is fixedly installed in the space between the two mounting side plates, the midpoint of the ruler is marked as the origin or zero point, and the scale is sequentially encoded to both sides starting from the origin or zero point, and electromagnetic proximity switches are respectively arranged at the origin and both sides, the electromagnetic proximity switch is electrically connected to the 1200PLC module, and a pointer is installed on the slider.

2. The CDC-16 turnout tamping vehicle Siemens PLC fault diagnosis simulation device according to claim 1 is characterized in that: It also includes buttons and indicator lights, each group of eight, which control and display the forward and reverse rotation of the AC motor and the forward and backward movement of the stepping motor.

3. The CDC-16 turnout tamping vehicle Siemens PLC fault diagnosis simulation device according to claim 1 is characterized in that: It also includes a temperature and humidity sensor module, which is connected to the 1200PLC module.

4. The CDC-16 turnout tamping vehicle Siemens PLC fault diagnosis simulation device according to claim 1 is characterized in that: The 1500PLC module and the 1200PLC module are electrically connected via Siemens Profinet communication.

5. The CDC-16 turnout tamping vehicle Siemens PLC fault diagnosis simulation device according to claim 1 is characterized in that: The number of input and output of the 1200PLC module is ≥8.

6. The CDC-16 turnout tamping vehicle Siemens PLC fault diagnosis simulation device according to claim 1 is characterized in that: The number of PROFINET IO RT / IRT interfaces of the 1500PLC module is 1.

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