Panasonic A230, Руководство пользователя, Страница: 124 / 377

Position and Rotation Adjustment OCR Type A230
6 − 32
6.4 Position Adjustment Groups
Example 1:
Checker areas R1 and R2 are both given position adjustment
group No.1 (G=1), as shown in Figure 1.
Because both checkers use the same position adjustment
group the whole workpiece can be inspected reliably with only
a single position adjuster, even if the workpiece is misaligned
as shown in Figure 2.
(The dotted line rectangles indicate the areas inspected by the
checkers.)
Figure 1 Figure 2
Position
adjustment 1
R1
(G=1)
R2
(G=1)
Movement
Position
adjustment 1
R1
(G=1)
R2
(G=1)
Example 2:
Keeping the same checker settings as example 1, two
workpieces of different dimensions are inspected. See how
the position adjustment group number affects the result when
the length of the workpiece varies.
(1) Inspection using only one group, group No.1 (G=1):
Because only a single position adjustment is performed,
the position is only properly adjusted for one of the
checkers. The other checker does not inspect the correct
position.
Position
adjustment 1
R1
(G=1)
R2
(G=1)
Position
adjustment 1
R1
(G=1)
R2
(G=1)
(Inspection error)