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

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
OK
SEARCH OK
ABCDE
If the workpiece is placed
SEARCH NG
in wrong orientation, NG
judgment will be made
since " " is not detected
in the teaching area.
NG judgment will
SEARCH NG
also be made if the
workpiece is placed
upside down.
● 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
OK
MATCH OK
ABCDE
MATCH NG
NG due to wrong
characters
AFGHI
MATCH NG
"NG" due to inclina-
tion of the workpiece

Inspecting by Pattern (PATTERN)

Section 4
ZFV-C
63
User's Manual