Omron F250-UME Software Manual page 206

Circle Position Compensation
2-9-1 Setting Position Displacement Compensation Regions
2-9-(3)
There are five methods available for circle position compensation.
Method
Not rotate Registers four points on the circumference as the model, per-
forms a search using this model, and detects and compensates
the position displacement of the measurement object.
1 model Registers a characteristic feature of the measurement object for
rotation positioning, which enables position compensation in the
rotation direction.
Defect (circle) Detects a characteristic feature on the circumference using
defect algorithms, which also enables position compensation in
the rotation direction to be performed. The circumference (360
will be the search region for defects.
Defect (arc) Detects a characteristic feature on the circumference using
defect algorithms, which also enables position compensation in
the rotation direction to be performed. The angle range to
search for defects can be specified.
Circular angle Another circle is drawn, in addition to the circle for external posi-
tioning. A characteristic feature on the circumference of the
drawn circle is used to perform position compensation in the
rotation direction.
Details
Model for rotation positioning.
A
Reference angle
Characteristic feature
Reference angle
Characteristic feature
Reference angle
Characteristic mark is the
reference position.
Section 2-9
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