Inspecting By Pattern (Pattern) - Omron ZFV-C Manual

Section 4

Inspecting by Pattern (PATTERN)

Inspecting by Pattern (PATTERN)

Inspects "presence/absence" of the workpiece and judges whether the type of
workpiece is correct.
There are two measurement items for [PATTERN]: [SEARCH] and [MATCH].
● Search
Judgment is performed by whether the registered model is or is not in the inspected
area. This item works with workpieces tilted to an angle of ±45°.
Example: Inspection of upside down orientation, and color of electronic components
SEARCH
SEARCH
SEARCH
● Match
Select this item for inspecting shapes and recognizing different objects. Judgment is
performed by comparing the degree of match between a registered model and the tar-
get workpiece. Compared with [SEARCH], more detailed inspection is possible, and
larger workpieces can be inspected. Note, however, that this item does not work with
tilted workpieces.
Example: Inspection of wrong model and color of electronic components
MATCH
MATCH
MATCH
ZFV-C
62
User's Manual
OK
OK
ABCDE
If the workpiece is placed
NG
in wrong orientation, NG
ABCDE
judgment will be made
since " " is not detected
in the teaching area.
NG judgment will
NG
also be made if the
workpiece is placed
upside down.
OK
OK
ABCDE
NG
NG due to wrong
characters
AFGHI
NG
"NG" due to inclina-
tion of the workpiece