HEIDENHAIN ND 920 - Manual (Page 34)

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Program Input
For small-lot production you can enter the sequence of positioning
steps in the operating mode Program Input (PGM key). Up to 99
positioning steps are possible. The program remains in memory even
when the power is turned off or otherwise interrupted.
The display unit goes into the distance-to-go mode when Program Input
is activated. You can move to the entered positions simply by traversing
to display value zero. The program blocks can be entered in absolute or
incremental dimensions. The
∆
symbol in the status display continues
blinking until the block is completely entered.
You can start from any positioning block in a finished program.
Program Input
Example: Milling a step
Tool data: Radius 6 mm
Length 50 mm
Axis Z
Starting position: X -6 mm
Y 0 mm
Z 0 mm
Y
X
1 2
3 4
60 30
20
0
0
30
20