PLC comprehensive practical teaching platform

Abstract

The utility model discloses a PLC comprehensive practical training teaching platform comprising a supporting table and an electronic device mounting plate, and the electronic device mounting plate is fixed on the top of the supporting table and is used for fixing a remote constant pressure water supply system circuit; the pressure of constant-pressure water supply is set through the touch screen, the optical fiber communication module transmits set parameters to the PLC, the pressure sensor transmits the pressure in a water supply pipeline to the analog input module of the PLC through the signal conversion module, the PLC calculates the rotating speed of the motor through the PID module and controls the output frequency of the frequency converter, and finally closed-loop control is formed. Therefore, the purpose of remote constant-pressure water supply is achieved. Through the comprehensive practical training teaching platform of the utility model, electricians can comprehensively use professional knowledge in the aspects of PLC, frequency converter, touch screen, remote monitoring and the like, and the training and learning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC training platforms, and specifically refers to a PLC comprehensive training teaching platform for realizing a remote constant pressure water supply system. Background Art

[0002] As devices covering professional knowledge such as PLC, inverter, touch screen and remote monitoring are increasingly used in mines, the knowledge reserve and comprehensive ability requirements for electricians are becoming higher and higher. Therefore, there is an urgent need for a comprehensive training and teaching platform integrating PLC, inverter, touch screen and communication modules.

[0003] Therefore, a PLC comprehensive training teaching platform has become an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a PLC comprehensive training teaching platform which is convenient for electricians to master professional knowledge of PLC, frequency converter, touch screen and remote monitoring, and improve the skills of electricians in handling problems.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a PLC comprehensive training teaching platform, including a support table and an electronic device mounting plate, wherein the electronic device mounting plate is fixed on the top of the support table and is used to fix the remote constant pressure water supply system circuit;

[0006] The front side of the electronic device installation board is provided with a circuit breaker, a frequency converter, a motor, an AC220V to DC24V power supply module, a first touch screen, a current to voltage module, a pressure sensor, a plurality of buttons, a potentiometer, a wire trough and a plurality of wires;

[0007] The rear side of the electronic device installation board is provided with a leakage protection switch, a fuse, an AC220V to DC5V power module, a second touch screen, an optical fiber communication module, a protector, and an intermediate relay;

[0008] The AC220V to DC24V power module and the AC220V to DC5V power module are connected to an external power supply, the first touch screen and the second touch screen are both connected to the AC220V to DC24V power module, the optical fiber communication module is provided with two and respectively connected to the AC220V to DC24V power module and the AC220V to DC5V power module, and the two optical fiber communication modules are connected by optical fiber;

[0009] The motor is connected to the frequency converter and then connected to an external power supply, and the frequency converter is connected to the PLC;

[0010] The pressure sensor is connected in series with the current-to-voltage module and the PLC. The pressure sensor converts the detection signal into a voltage signal through the current-to-voltage module and then sends it to the PLC;

[0011] The PLC is connected to the optical fiber communication module through a communication line and then connected to the first touch screen through a communication line, and the first touch screen displays the information content processed by the PLC;

[0012] The PLC is connected to the intermediate relay and then to the protector, and the protector is connected to the second touch screen through a communication line.

[0013] The advantages of the utility model compared with the prior art are:

[0014] 1. Through the comprehensive training teaching platform of the utility model, electricians can comprehensively apply the professional knowledge they have learned in PLC, frequency converter, touch screen and remote monitoring, thereby improving the training and learning efficiency.

[0015] 2. This utility model has comprehensive functions and can simulate the actual production environment to meet the needs of PLC training teaching;

[0016] 3. The utility model has high safety, and is equipped with leakage protection switch and insurance to ensure the safety of electricians;

[0017] 4. The utility model is easy to operate and is equipped with a touch screen, which is convenient for electricians to observe and control;

[0018] 5. The utility model is easy to maintain, and the modular design of each component is convenient for replacement and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main structural diagram of a PLC comprehensive training teaching platform of the utility model.

[0020] Figure 2 The utility model is a rear view structural schematic diagram of a PLC comprehensive training teaching platform.

[0021] Figure 3 The utility model is a side view structural schematic diagram of a PLC comprehensive training teaching platform.

[0022] Figure 4 The utility model is a circuit schematic diagram of a PLC comprehensive training teaching platform.

[0023] As shown in the figure: 1. Support table, 2. Electronic device mounting plate, 3. Frequency converter, 4. Motor, 5. AC220V to DC24V power module, 6. First touch screen, 7. Current to voltage module, 8. Pressure sensor, 9. AC220V to DC5V power module, 10. Second touch screen, 11. Fiber optic communication module, 12. Protector, 13. Intermediate relay, 14. Tilt support frame. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inside", "outside", "vertical", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following is a further detailed description of a PLC comprehensive training teaching platform of the utility model in conjunction with the accompanying drawings.

[0028] Combined with Figure 1-4 , the utility model is introduced in detail.

[0029] A PLC comprehensive training teaching platform includes a support platform 1 and an electronic device mounting plate 2. The electronic device mounting plate 2 is fixed on the top of the support platform 1 and is used to fix the circuit of a remote constant pressure water supply system; an inclined support frame 14 connected to the support platform 1 is provided at the rear of the electronic device mounting plate 2 for supporting and stabilizing the electronic device mounting plate 2.

[0030] The front side of the electronic device installation board 2 is provided with a circuit breaker, an MM420 frequency converter 3, a 0.75KW small motor 4, an AC220V to DC24V power supply module 5, a Weiluntong MT6070iH touch screen (first touch screen 6), a (4-20mA or 0-10V) current to voltage module 7, a 0-10MPa pressure sensor 8, 10 buttons, a potentiometer, a wire trough, and a number of wires.

[0031] The rear side of the electronic device installation board 2 is provided with a leakage protection switch, a 2A fuse, an AC220V to DC5V power supply module 9, a Weiluntong MT6070iH touch screen (second touch screen 10), a pair of RS485 to fiber optic communication modules 11, a Nanjing Shuangjing SJDQ-120 protector 12, and a DC24 intermediate relay 13.

[0032] The AC220V to DC24V power module 5 and the AC220V to DC5V power module 9 are connected to an external power supply, the first touch screen 6 and the second touch screen 10 are both connected to the AC220V to DC24V power module 5, the optical fiber communication module 11 is provided with two and respectively connected to the AC220V to DC24V power module 5 and the AC220V to DC5V power module 9, and the two optical fiber communication modules 11 are connected by optical fiber;

[0033] The motor 4 is connected to the frequency converter 3 and then to an external power supply, and the frequency converter 3 is connected to the PLC;

[0034] The pressure sensor is connected in series with the current-to-voltage module 7 and the PLC. The pressure sensor converts the detection signal into a voltage signal through the current-to-voltage module 7 and then sends it to the PLC;

[0035] The PLC is connected to the optical fiber communication module 11 through a communication line and then connected to the first touch screen 6 through a communication line. The first touch screen 6 displays the information content processed by the PLC;

[0036] The PLC is connected to the intermediate relay 13 and then to the protector 12 , and the protector 12 is connected to the second touch screen 10 via a communication line.

[0037] The specific implementation process of the utility model of a PLC comprehensive training teaching platform is as follows:

[0038] The pressure of the constant pressure water supply is set through two touch screens, the optical fiber communication module 11 transmits the setting parameters to the PLC, the pressure sensor transmits the pressure in the water supply pipeline to the analog input module of the PLC through the signal conversion module, and the PLC calculates the speed of the motor 4 through the PID module, controls the output frequency of the inverter 3, and finally forms a closed-loop control, thereby achieving the purpose of remote constant pressure water supply.

[0039] The PLC comprehensive training teaching platform of the utility model can realize the training test of the remote constant pressure water supply system, which can realize the goals of starting and stopping the remote booster pump, variable frequency constant pressure water supply, setting the pressure of the host computer, and setting the pressure on the spot using the touch screen.

[0040] Through the PLC comprehensive training teaching platform of the utility model, electricians can comprehensively apply the professional knowledge they have learned in PLC, inverter 3, touch screen and remote monitoring, etc., thereby improving the training and learning efficiency.

[0041] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A PLC comprehensive training teaching platform, characterized by: It includes a support platform and an electronic device mounting plate, wherein the electronic device mounting plate is fixed on the top of the support platform and is used to fix the circuit of the remote constant pressure water supply system; The front side of the electronic device installation board is provided with a circuit breaker, a frequency converter, a motor, an AC220V to DC24V power supply module, a first touch screen, a current to voltage module, a pressure sensor, a plurality of buttons, a potentiometer, a wire trough and a plurality of wires; The rear side of the electronic device installation board is provided with a leakage protection switch, a fuse, an AC220V to DC5V power module, a second touch screen, an optical fiber communication module, a protector, and an intermediate relay; The AC220V to DC24V power module and the AC220V to DC5V power module are connected to an external power supply, the first touch screen and the second touch screen are both connected to the AC220V to DC24V power module, the optical fiber communication module is provided with two and respectively connected to the AC220V to DC24V power module and the AC220V to DC5V power module, and the two optical fiber communication modules are connected by optical fiber; The motor is connected to the frequency converter and then connected to an external power supply, and the frequency converter is connected to the PLC; The pressure sensor is connected in series with the current-to-voltage module and the PLC. The pressure sensor converts the detection signal into a voltage signal through the current-to-voltage module and then sends it to the PLC; The PLC is connected to the optical fiber communication module through a communication line and then connected to the first touch screen through a communication line, and the first touch screen displays the information content processed by the PLC; The PLC is connected to the intermediate relay and then to the protector, and the protector is connected to the second touch screen through a communication line.

2. A PLC comprehensive training teaching platform according to claim 1, characterized in that: The frequency converter adopts MM420 frequency converter, and the motor adopts 0.75KW small motor.

3. A PLC comprehensive training teaching platform according to claim 1, characterized in that: The first touch screen and the second touch screen both use the Weiluntong MT6070iH touch screen.

4. A PLC comprehensive training teaching platform according to claim 1, characterized in that: The optical fiber communication module adopts a RS485 to optical fiber communication module, and the protector adopts a Nanjing Shuangjing SJDQ-120 protector.

5. A PLC comprehensive training teaching platform according to claim 1, characterized in that: An inclined support frame connected to the support platform is arranged at the rear of the electronic device installation plate.

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