CN112783136A - 3950mm hot rolling mill control system and test method - Google Patents

Abstract

A3950 mm hot rolling mill control system and a test method provide a new replaceable control system for a 3950mm hot rolling mill, and belong to the technical field of automatic hardware control. The control system of the hot rolling mill is realized based on a VME series control system of the hot rolling mill, the control system of the hot rolling mill comprises an APC910 series controller replacing a CPU in the VME series control system and an EtherCAD board replacing a signal conversion board, and the EtherCAD board is used for inputting and outputting signals for the APC910 series controller. The testing method records the signals of each sensor under the control of the VME series control system; and acquiring signals of each sensor in the control system of the application, comparing the signals with signals of each sensor recorded in S1, determining whether the EtherCAD board card works normally and whether the APC910 series controller can read signals fed back by the sensors normally, and testing whether the signals of the hot rolling mill during working are normal and whether the hot rolling mill has a production condition of waiting materials.

Description

3950mm hot rolling mill control system and test method

Technical Field

The invention relates to a 3950mm hot rolling mill rolling control system and a testing method, and belongs to the technical field of automatic hardware control.

Background

With the development of science and technology, the aluminum processing industry has a new development direction in the aspects of improving the manufacturing quality and reducing the energy consumption. It is also an important development direction to improve the operation speed of the control system. The 3950mm rolling mill was controlled using VME series products. The CPU model of the VME frame is VMIVME-7807-411000 series, wherein 5 CPUs are used for the MM frame, 4 CPUs are used for the PM frame, and about 10 ten thousand RMB are sold in each CPU in the current domestic market. And it is difficult to find the supplier. Once CPU damage occurs, huge loss is caused. Due to continuous innovation of the market technology of the automation industry of the aluminum processing manufacturing industry, VME series products face elimination, a 3950mm rolling mill has the hidden trouble that a control system is not replaceable, and a new control system needs to be provided to reduce the hidden trouble caused by forced shutdown of the rolling mill to the minimum.

Disclosure of Invention

Aiming at the defects, the invention provides a new 3950mm hot rolling mill control system and a test method on the basis of the existing VME series control system.

The control system of the 3950mm hot rolling mill is realized based on a VME series control system of the 3950mm hot rolling mill, and comprises an APC910 series controller replacing a CPU in the VME series control system and an EtherCAD board replacing a signal conversion board, wherein the EtherCAD board is simultaneously connected with sensors of the APC910 series controller, the 3950mm hot rolling mill and the VME series control system, and is used for receiving an input signal of the 3950mm hot rolling mill, transmitting an output signal of the sensor of the VME series control system to the APC910 series controller, and simultaneously transmitting a control signal of the APC910 series controller to the 3950mm hot rolling mill.

Preferably, the APC910 series controller is an Intel core I7 processor.

Preferably, the control system of the 3950mm hot rolling mill further comprises an XPFB-PCI communication card to replace a DP communication board card in the VME series control system.

Preferably, the method comprises:

s1, recording each path of sensor signals under the control of the VME series control system;

s2, updating a control program of a control system of the 3950mm hot rolling mill, checking signals of each sensor at the moment, comparing the signals with the signals of each sensor recorded in S1, determining whether the EtherCAD board works normally and whether an APC910 series controller can read in signals fed back by the sensors normally, if so, switching to S3, and if not, sending debugging signals to field testing personnel;

s3, starting the 3950mm hot rolling mill, testing whether a signal of the 3950mm hot rolling mill during working is normal, testing whether the 3950mm hot rolling mill has a material waiting production condition, if so, completing the test, and if not, sending a debugging signal to a field tester.

Preferably, the method further comprises:

when the 3950mm hot rolling mill rolls, the parameters of the control system of the 3950mm hot rolling mill are tracked, analysis is carried out, and whether the hidden danger exists in the control system of the 3950mm hot rolling mill is determined.

The invention has the beneficial effects that: on the basis of the control of the original hot rolling mill, the CPU of VMIVME7807 type produced by GE company is changed into the CPU of Core i72.1GHz produced by APC910 series controller Intel company, so that the operation processing speed of the hot rolling mill is improved. Meanwhile, a signal conversion plate adopted by the original control system is eliminated, and a field 4-20mA signal is directly introduced into the control system. The acquisition rate of the field signal is improved. The original DP communication board is replaced by the XPFB-PCI board, and the communication transmission rate is improved.

Drawings

FIG. 1 shows a rack configuration of an APC910 series controller according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

The CPU model of the original VME frame is VMIVME-7807-411000 series, wherein 5 CPUs are used for the MM frame and 4 CPUs are used for the PM frame, and each CPU is sold at about 10 ten thousand RMB in the current domestic market. And the domestic channel is difficult to find the supplier. Once CPU damage occurs, huge loss is caused. The purpose of the embodiment is to solve the problems that the hardware of the existing 3950mm rolling mill equipment control system is stopped, no spare part is available, and the problem that the equipment is stopped accidentally, a replacement spare part cannot be found for replacement, and the forced shutdown delays the production time is solved by adopting an APC control system to replace the VME control system of the original rolling mill. The 3950mm hot rolling mill control system of the embodiment is realized based on a VME series control system of a 3950mm hot rolling mill, the 3950mm hot rolling mill control system comprises an APC910 series controller replacing a CPU in the VME series control system and an EtherCAD board replacing a signal conversion board, the EtherCAD board is simultaneously connected with the APC910 series controller, the 3950mm hot rolling mill and a sensor of the VME series control system, and is used for receiving an input signal of the 3950mm hot rolling mill and transmitting an output signal of the sensor of the VME series control system to the APC910 series controller, and simultaneously transmitting a control signal of the APC910 series controller to the 3950mm hot rolling mill.

The control hardware of the original 3950mm hot rolling mill is replaced by the control hardware of the original 3950mm hot rolling mill, and a new controller is adopted for control, so that the function of faster automatic control is realized. The original signal conversion board is deleted, the conversion process in the middle of transmission variables used by the original system is omitted, and the control precision is improved.

The hardware configuration of the APC system of this embodiment is as follows: APC910 bus 4PCI,1PCI Express (x8)

CPU board:Quad Core i7 2.1GHz,

6 MB L2 cache；

Intel QM77 chipset；

2 sockets for SO-DIMM DDR3 modules(max.total of 2*8GB)。

The rack configuration of the APC910 series controller is shown in FIG. 1.

The APC910 series controller adopts the most current controller in the current market, has sufficient market spare parts, strong compatibility, high running speed, simple hardware structure and lower price.

The embodiment can upgrade the whole control system, integrally optimize the automatic control system and optimize the hydraulic system without changing the existing mill housing and foundation.

The APC910 series controller of the present embodiment is an Intel core I7 processor.

The 3950mm hot rolling mill control system of the present embodiment further includes an XPFB-PCI communication card to replace a DP communication board card in the VME series control system.

In the embodiment, the controller of the whole system is replaced under the condition that the position of the original field sensor is not changed, the latest core technology in the world is introduced, the Intel core I7 processor is adopted to replace the original VME7807 processor, the XPFB-PCI communication card is selected to replace the original VME DP communication card, and the Ethernet signal board is selected to replace the original VME4140 board card. The whole hardware control system is completely updated, and the software part is correspondingly upgraded and modified, so that the control precision of the rolling mill is improved.

In specific implementation, firstly, model selection is designed, and an EtherCAD board compatible with the APC910 controller is selected. The board cards are used for receiving input and output signals of the whole rolling mill, and the signals are directly transmitted to the APC910 controller through the Ethernet and are rapidly processed through the APC910 controller. And recording signals of all paths of sensors of the VME control system of the original rolling line, and recording the numerical values of the signals. And designing a drawing, and connecting to an EtherCAD board card after all the original sensor wiring entering the VME control system is modified. And (3) purchasing the APC910 server and the corresponding EtherCAD board card and manufacturing a new electric control cabinet, and purchasing a multi-core cable for connecting the on-site sensor with the new electric control cabinet. And after the newly manufactured electric control cabinet is installed in place, the original VME cabinet is subjected to line transformation, the sensor jumpers are all connected into the EtherCAD board card of the new cabinet, and then the VME rack is dismantled. And (4) power-on test, updating the control program of the APC910, and checking the signal value fed back from the site to compare with the originally recorded value. And testing whether the EtherCAD board works normally or not, and testing whether a signal fed back by the field sensor can be read into the APC910 controller normally or not. If the EtherCAD board card cannot work normally or the APC910 series controller cannot normally read in the signals fed back by the sensors, sending debugging signals to field testing personnel; after the sensors at each test site feed back normally, the rolling mill is started, whether the signals of the rolling mill during working are normal or not is tested, and whether the rolling mill has the production conditions of waiting materials or not is tested. If the signal of the 3950mm hot rolling mill during operation is abnormal, or the 3950mm hot rolling mill does not have the production condition of waiting to expect, send the debugging signal to the field test personnel. And after all the materials are ready, discharging and rolling. And analyzing and comparing the parameter data of the modified APC910 controller in the rolling process on a tracking site, and observing whether hidden dangers exist. And after the data are normal, putting into normal production.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims (5)

1. The control system of the 3950mm hot rolling mill is realized based on a VME series control system of the 3950mm hot rolling mill, and comprises an APC910 series controller for replacing a CPU in the VME series control system and an EtherCAD board for replacing a signal conversion board, wherein the EtherCAD board is simultaneously connected with sensors of the APC910 series controller, the 3950mm hot rolling mill and the VME series control system, and is used for receiving an input signal of the 3950mm hot rolling mill, transmitting an output signal of the sensor of the VME series control system to the APC910 series controller, and simultaneously transmitting a control signal of the APC910 series controller to the 3950mm hot rolling mill.

2. The control system of 3950mm hot rolling mill of claim 1 wherein the APC910 series controller is an intel core I7 processor.

3. The control system of 3950mm hot rolling mill of claim 1, further comprising an XPFB-PCI communication card to replace a DP communication board card in the VME family control system.

4. The method of testing the control system of the 3950mm hot rolling mill of any one of claims 1-3, the method comprising:

s1, recording each path of sensor signals under the control of the VME series control system;

s2, updating a control program of a control system of the 3950mm hot rolling mill, checking signals of each sensor at the moment, comparing the signals with the signals of each sensor recorded in S1, determining whether the EtherCAD board works normally and whether an APC910 series controller can read in signals fed back by the sensors normally, if so, switching to S3, and if not, sending debugging signals to field testing personnel;

s3, starting the 3950mm hot rolling mill, testing whether a signal of the 3950mm hot rolling mill during working is normal, testing whether the 3950mm hot rolling mill has a material waiting production condition, if so, completing the test, and if not, sending a debugging signal to a field tester.

5. The method of testing of claim 4, further comprising:

when the 3950mm hot rolling mill rolls, the parameters of the control system of the 3950mm hot rolling mill are tracked, analysis is carried out, and whether the hidden danger exists in the control system of the 3950mm hot rolling mill is determined.

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