Method for setting software protection test function for mine hoist programmable logic controller (PLC) electronic control system

A technology of mine hoist and electric control system, applied in the direction of hoist, transportation and packaging, can solve the problem of not having

Active Publication Date: 2019-02-05
张子祎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the PLC electronic control system of the mine hoist does not have the function of online, non-impact test software protection (software over-roll and over-discharge protection, overspeed protection, software speed limit protection, software deceleration function protection)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] 1. The PLC electric control system of the mine hoist sets the software over-rolling and over-discharging protection test procedures and functions

[0008] Set the software over-roll and over-discharge protection test switch, the normally closed and normally open contacts of the test switch respectively control the software over-roll and over-discharge protection in the mine hoist PLC electric control program The original operation control program and software over-roll and over-discharge Protection test program.

[0009] Open the PLC electric control program of the mine hoist, determine the position of the software over-roll and over-discharge protection test program, put the software over-roll and over-discharge protection test program after the software over-roll and over-discharge protection operation control program, and place the software over-roll and over-discharge protection test program. Copy the operation control program corresponding to the over-discharge pro...

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PUM

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Abstract

The invention relates to a method for setting a software protection test function for a mine hoist programmable logic controller (PLC) electronic control system, and belongs to a new method for setting the function of the mine hoist PLC electronic control system. Through arranging a corresponding switch, and copying and modifying a corresponding software protection position, and a speed setting value or a contact in the electronic control system, software over-wind and over-discharge protection, overspeed protection, software speed-limit protection, and a software speed-reduction function protection test program are added in the electronic control system, so that the mine hoist PLC electronic control system has operational control and software protection test functions at the same time, and has online shock-free test software over-wind and over-discharge protection, overspeed protection, software speed-limit protection, and software speed-reduction function protection functions. No PLCSIM software is used. The software protection test cannot cause any mechanical impact on a hoisting system.

Description

technical field [0001] The invention relates to a method for setting a software protection test function in a PLC electric control system of a mine hoist. Background technique [0002] The mine hoist has widely adopted the PLC electric control system. At present, the PLC electronic control system of the mine hoist does not have the function of online, non-impact test software protection (software over-roll and over-discharge protection, over-speed protection, software speed limit protection, software deceleration function protection). Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a method for setting software protection online and no impact test function in the PLC electric control system of mine hoist. The test will not cause any mechanical impact on the hoisting system. At the same time, it has the functions of hoist operation control and software protection test. The technical scheme adopted ...

Claims

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Application Information

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IPC IPC(8): B66B5/00
CPCB66B5/0037
Inventor 张子祎
Owner 张子祎
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