HEIDENHAIN PT 855 for Milling - Manual (Page 51)

I - 4 Programming POSITIP
POSITIP 855 Operating Instructions 49
Y
X
1 2
3 4
60 30
20
50
0
0
Entering program blocks
Example: Milling a shoulder
The coordinates are programmed in absolute dimensions.
The datum is the workpiece zero.
Corner
X = 0 mm Y = 20 mm
Corner X = 30 mm Y = 20 mm
Corner X = 30 mm Y = 50 mm
Corner X = 60 mm Y = 50 mm
Summary of all programming steps
ä In the main menu
PROGRAMMING AND EDITING
use the
Program Number
soft key to access the program directory.
ä Key in the number of the program you want to work on, and
press ENT.
äÿSelect
Edit
In the main menu
PROGRAMMING AND
EDITING
.
ä Enter the nominal positions.
Running a finished program
When a program is finished it can be run in the
EXECUTE PRO-
GRAM
mode (see chapter I - 5).
Example of entry: Entering a nominal position into a program
(block 6 in this example)
Select the coordinate axis (X axis).
Program blocks
0 BEGIN PGM 10 MM
Start of program, program number and unit of measurement
1 Z+20.000
Clearance height
2 X–20.000 R0
Pre-position the tool on the X axis
3 Y–20.000 R0
Pre-position the tool on the Y axis
4 Z–10.000
Move tool to milling depth
5 Y+20.000 R+
Y coordinate, corner ➀
6 X+30.000 R–
X coordinate, corner ➁
7 Y+50.000 R+
Y coordinate, corner ➂
8 X+60.000 R+
X coordinate, corner ➃
9 Z+20.000
Clearance height
10 END PGM 10 MM
End of program, program number and unit of measurement
N o m i n a l p o s i t i o n v a l u e ?
3 0
Confirm the entry. The nominal position is now the current block
(between the dashed lines). ENT
Enter the nominal position value, for example 30 mm
and
select tool radius compensation R –.
3
1
2
4