HEIDENHAIN PT 855 for Milling - Manual (Page 81)

I - 7 User Parameters: The MOD Function
POSITIP 855 Operating Instructions 79
Fig. 31: Original workpiece
After enlargement with scaling
factor
Fig. 30: The user parameters on the POSITIP
screen
I - 7
User Parameters: The MOD Function
User parameters are operating parameters which you can change
without having to enter a code number.
The machine builder determines which operating parameters are
available to you as user parameters as well as how the user pa-
rameters are arranged in the soft keys.
The functions of user parameters are described in chapter II - 2.
To access the user parameter menu
ä Press MOD.
The user parameters appear on the screen.
ä Go to the soft key row with the desired user parameter.
ä Press the soft key for the desired user parameter.
To leave the user parameter menu
ä Press MOD.
Scaling factors
The user parameter
Scaling Factor
enables you to increase
or decrease the size of workpieces. POSITIP divides the displayed
value by the scaling factor you entered.
Scaling factors change the workpiece size symmetrically about the
workpiece datum. The workpiece datum should therefore be lo-
cated at an edge when you are working with scaling factors.
Input range: 0.1 to 9.999 999
To activate scaling factors
ä Switch the user parameter
Scaling Factor OFF / ON
to
ON
.
To deactivate scaling factors
ä Switch the user parameter
Scaling Factor OFF / ON
to
OFF
.
Please see next page for instructions on entering scaling factors.
Y
X
0
0
1
2
∗
3.0
∗
3.5
1
2
MOD