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Redundancy control method for selecting and switch-interlocking work modes of billet casting machine

A working method, billet continuous casting technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve problems such as no research reports

Inactive Publication Date: 2010-09-08
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] So far, there are no relevant research reports

Method used

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  • Redundancy control method for selecting and switch-interlocking work modes of billet casting machine
  • Redundancy control method for selecting and switch-interlocking work modes of billet casting machine
  • Redundancy control method for selecting and switch-interlocking work modes of billet casting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 It shows the electrical path for controlling the redundant control method for selecting the working mode of the billet continuous casting machine and switching interlocking, including a universal transfer switch (2), a programmable control device (1) and a monitoring man-machine interface (3).

[0035] The universal transfer switch (2) is used as the control input of "hard switching" in the redundant control method of the selection of the billet continuous casting machine's working mode and switching interlocking, and it is necessary to ensure that the "disconnect", "manual", " The order of the five working mode bits and remote control bits of "send dummy", "casting preparation" and "pouring" cannot be changed.

[0036] The programmable control device (1) realizes the interlocking control of the redundant control method of selecting the working mode of the billet continuous casting machine and switching interlocking.

[0037] The monitoring man-machine interfa...

Embodiment 2

[0039] (1) Collect the state signal of the universal transfer switch (2) and store it in I01.

[0040] Correspondence table between variable I01 and control bit of universal transfer switch

[0041] address number

Way of working

state

I01.0

disconnect

0 / 1

I01.1

manual

0 / 1

I01.2

Dummy ingot

0 / 1

I01.3

ready to cast

0 / 1

I01.4

casting

0 / 1

I01.5

remote control

0 / 1

[0042] (2) Determine whether it is "remote control".

[0043] If I01.5=1 means "remote control", enter the computer (HMI) soft switching interlocking control program.

[0044]If I01.5=0 is not "remote control", enter the hard switching interlocking control program of the universal transfer switch.

[0045] (3) The outputs of the two interlocking control programs are fused to form one output.

Embodiment 3

[0047] (1) Establish an analog variable operate on the computer monitoring man-machine interface. Establish correspondence between the five working modes of the billet continuous casting machine and the variable operate, and realize the positioning of the five working modes of "disconnect", "manual", "send dummy ingot", "casting preparation" and "pouring". Functions whose order cannot be changed, realize operation and display on the monitoring man-machine interface at the same time.

[0048] Correspondence table between the variable operate and the five working modes in the monitoring man-machine interface

[0049] address number

Way of working

state

operate

disconnect

operate=1

operate

manual

operate=2

operate

Dummy ingot

operate=3

operate

ready to cast

operate=4

operate

casting

operate=5

[0050] (2) if image 3 The interlocking control flow shown realizes the upward selectio...

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Abstract

The invention aims to solve the problems that the traditional control method of selecting and switching operation work modes of the billet casting machine has no standby control method to be replaced and is difficult to operate, and provides a redundancy control method for selecting and switch-interlocking work modes of a billet casting machine. In the method of the invention, on the basis of the traditional selection and switching method of the work modes of the billet casting machine, without adding any hardware, the control input of the selection and switching of work modes is only increased in a monitoring human-computer interface in the programming manner, and the selection and switching (soft switch) of work modes on the monitoring human-computer interface is realized. The redundancy control method for selecting and switch-interlocking work modes of billet casting machine coexists with the selection and switching (hard switching) of work modes of a universal change-over switch on an operation station. The invention is not only convenient for operators to operate, but also improves the operation safety and the dependability of the billet casting machine.

Description

technical field [0001] The invention belongs to the field of industrial automation, and in particular relates to a continuous casting machine working mode selection and switching control method, in particular to a billet continuous casting machine working mode selection and switching interlocking redundant control method. Background technique [0002] In the billet continuous casting production, the billet continuous casting machine generally has five working modes to choose and switch, that is, the operation mode selection and switching. There are five ways: "disconnect", "manually", "send dummy", "casting preparation" and "pouring". Set by stream. Realize the control of the casting process of the billet continuous casting machine. [0003] "Off" working mode: When this working mode is set, the crystallizer vibrates, the tension leveler cannot be started, but other equipment can be started. Part of the equipment can be tested. After the continuous casting machine stops,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418B22D11/16
CPCY02P90/02
Inventor 赵亦欣黄伟
Owner SOUTHWEST UNIVERSITY
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