Rockwell Automation 5370-CVIM2 Module - Manual (Page 219)

Chapter 6
Reference Tools
6–60
After the pass configuration is complete, a “learn” operation must be
performed by picking the
Nominal field in the tool edit panel. This
establishes the “nominal” coordinates and rotation angle of the rotation
finder tool, and thereby enables it to be used by other tools as a rotation
compensation source.
When the Nomina l field is picked, the Feature Locations panel appears
first, as shown by Figure 6.51. Note that a radius line extends from the center
of the circular object to the index mark.
Figure 6.51 Example: Rotation Finder “Learning” Nominal Values
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
ЗЗ
ЗЗ
ЗЗ
ЗЗ
X–axis 0
°
Radius
line
The values appearing in the Feature Locations panel reflect the X– and
Y–axis coordinates of the “head” of the radius line, along with the RMS
error, which is the calculated RMS (root mean square) error for the feature
(the index mark in this example). For details about RMS error calculations,
refer to the Pixel Error Parameter Selections section on page 6–43.