4 Machine 01.99
6FC5198-6AA60-0BP1 © Siemens AG 1999 All Rights Reserved
4-16 SINUMERIK 840C, OEM Version for Windows (BA)
Machine manufacturer
Whether the increment is traversed modally or non-modally is determined by
machine data.
Indexed traversing
If this function is assigned to the axis to be moved and the direction key is
pressed, the axis is moved as though it were a normal axis. After releasing the
direction key, the axis moves to the next indexing position in the direction of
traversing.
Using the "Indexed traversing" function, NC axes can be positioned at
particular grid points.
Machine manufacturer
The machine manufacturer uses machine data to assign the "Indexed
traversing" function to individual axes. The parameters required are also
preset by machine data. Please also refer to the machine manufacturer’s
operating guide.
Example of "Indexed traversing" with a rotary axis:
Number of divisions: 7
Number of divisions per absolute dimension
Absolute dimension: 360.000 corresponds to the path to which the number of
divisions refers.
Indexed traversing with incremental dimension (INC)
If the "Indexed traversing" function is assigned to the axis to be moved and one
of the direction keys is pressed, the axis traverses by one division increment.
It is irrelevant which INC function (1, 10, 100, 1000 or 10000) is selected.
A rotary axis can be traversed by one division increment only by pressing the
INC 1 or INC variable key and entering "1". The INC10, INC100, INC1000
and INC10000 keys have no effect.
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No. of div.
Abs. dim.
0 360,000
00
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