HEIDENHAIN ND 920 - Manual (Page 33)

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The only way to tell whether a scaling factor is active is by
looking at the setting of parameter P11.
Scaling Factors
Scaling factors enable you to increase or decrease the display values
based on the actual traverse distance. The display values are changed
symmetrically about the datum.
Enter scaling factors separately for each axis in parameter P12.
Parameter P11 activates and deactivates the scaling factors in all axes
(see “Operating Parameters”).
Example for increasing a workpiece:
P12.1 3.5
P12.2 3.0
P11 ON
This results in a larger workpiece as shown in the illustration at right:
1 is the original size, 2 is with axis-specific scaling factors.
Scaling Factors
Y
X
0
0
1
*
3.0
* 3.5
2