Speed monitoring method in an automation system for a conveyor installation
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United States of America Patent
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Aug 18, 2009
Grant Date -
Oct 23, 2008
app pub date -
Dec 1, 2005
filing date -
Dec 6, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a speed monitoring method in a automation system for a conveyor installation, particularly for a pit. A speed monitoring method is provided that eliminates the need for detection elements for determining position that are arranged along the path of conveyance. An actual path value and an actual speed value are determined by means of at least one pulse counter. The actual path value is used for reading out a speed limiting value from a data table, which is stored in the automation system and which represents a stepped limiting value curve and for comparing the actual speed value with the read out speed limiting value.
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