Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 125)

Home Parameters
Chapter 5
5-23
Function
This parameter is only available for axes that use DCMs with a linear
scale. See Appendix B for details on integrating a DCM scale.
This parameter is similar to the homing parameter “Axis Position After
Homing”. The value entered here is used to define the axis’ coordinate
value at the the actual zero marker on a linear scale. Use this parameter to
shift the machine coordinate system on your scale. The value entered here
becomes the actual value of the zero marker.
For example, if you want the zero marker on your scale to be displayed and
used for programming as the position --5, enter --5 as the machine position
at DCM scale 0.
Smaller Period for DCM Scales (20.00)
Larger Period for DCM Scales (20.02)
Odd Markers
Even Markers
Actual zero marker of scale
Marker #1
--5
Coordinate value of the
axis at scale zero marker
Axis Number Axis Number
(1) [1502] (7) [7502]
(2) [2502] (8) [8502]
(3) [3502] (9) [9502]
(4) [4502] (10) [10502]
(5) [5502] (11) [11502]
(6) [6502] (12) [12502]
Range
--2540000.00000 to 2540000.00000 mm
or
--100000.00000 to 100000.00000 in.
Notes
This parameter must be set independently for each axis.
END OF CHAPTER
5.3
Machine Position at DCM
Scale 0