Zero Offset; Function - Siemens SINUMERIK 840D Operator's Manual

5
03.04
5.8

Zero offset

5.8.1 Function

Machine/tool zero
Work offset on a milling
machine
Effective WO
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
The actual values are referred to the machine zero after reference
point approach. The machining program of the workpiece refers to the
workpiece zero.
The machine zero and workpiece zero are not necessarily identical.
Depending on the type of workpiece and the way it is clamped, the
distance between the machine zero and workpiece zero can vary. In
part program processing this is compensated for by the work offset.
Z
M
XMR
P Tool setting point
W Workpiece zero
F Slide reference point
XMR, ZMR Reference point coordinates
XMW, ZMW Zero point offset
M Machine zero
R Machine reference point
Workpiece reference point
WR
The work offset effective in an axis
$P_ACTFRAME=.. is calculated from the sum of the following zero
offsets:
Parameters Operating Area

5.8 Zero offset

R=F
P
W WR
X
XMW
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