Siemens SINUMERIK 840C Installation Instructions Manual page 737

11.92
3040 mm
n =
.
1000 0.02 mm
The following correlation is used for calculating the absolute offset:
Position in machine system = Absolute offset +/- absolute position in scale system
(x )
MA
or
Absolute offset = Position in machine system -/+ absolute position in scale system
+: Machine scale and linear scale in same direction
(MD 1808*, bit 2=0)
0
0
Absolute value
offset
-: Machine and linear scale in opposite directions
(MD 1808*, bit 2=1)
0
x
MA
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
= 152
(x )
MA
x
MA
x
LA
Direction of movement
Absolute value offset
Direction of movement
6FC5197- AA50
10 Axis and Spindle Installation
10.4.5 Distance-coded reference marks
(x )
LA
(x )
LA
Machine system
Scale system
0
x
LA
10–47