Siemens SINUMERIK 805 Operating Instructions Manual page 130

5 Operating Sequences
5.2.6 Zero offset
06.90
5.2.6
Zero offset
The actual value memory, and therefore the actual value display, are referred
to
the machine
zero
point
"M"
after approaching the reference point.
The machining program for the workpiece is referred
to
the workpiece zero point
"W".
Machine zero point
"M"
and workpiece zero point
"W"
are not identical. The dimensions
between the machine zero point
"M"
and the workpiece zero point "W" can vary, depending
upon the
type
and fixing of the workpiece. This
offset is allowed for during
program
operation.
Yi
I
I
*
I
i
.
IR
= F
I
i
i
i
p
YMR
.,****•ÿ•
i
i
t
i
m m m m
V
asp
i
i
:
WR
w
I
M
Qr
I
I
A
1
X
<
i
* XMR
YMW
XMW
Zero offset with a milling machine
P Tool setting point
Machine zero point
Workpiece zero point
Machine reference point
Slide reference point
Workpiece reference point
Reference point coordinates
Zero offset
M
W
R
F
WR
XMR, YMR
XMW, YMW
5-13
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Siemens AG 1990 All Rights Reserved 6ZB5 410-0EE02
SINUMERIK 805, SW2 (BA)