Keyence IV2 Series - Stabilizing the High-Speed Position Adjustment; If the detection becomes unstable due to the effect of unwanted edges other than the target; If the edge of a target cannot be detected; Stabilizing the Outline tool

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IV2 Series User's Manual (Control Panel)
Adjusting Thresholds for Judgment
Stabilizing the High-Speed Position
Adjustment
This section explains how to adjust when the High-Speed
Position Adjustment is not stable.
“Hi-Sp.Adj tool” (Page 4-123)

If the detection becomes unstable due to
the e󰀨ect of unwanted edges other than the
target

Raise the threshold for edge sensitivity so that
unwanted edges are not extracted.
“Edge Sensitivity Manual Adjustment” (Page 4-128)

Change to an image with no unwanted edges by
making the target background plain, etc.

If the edge of a target cannot be detected

Set the window size as the same as the size of the
target.
If the judgment direction is horizontal (X axis in case
of 2-Axis Adjustment), set the height of the tool
window the same as the height of the target.

Decrease the threshold for edge sensitivity.
If the edge cannot be detected even after decreasing
the threshold for edge sensitivity, it may be necessary
to adjust the exposure for the target. Adjust the
exposure so that shade on the target does not appear.
“Edge Sensitivity Manual Adjustment” (Page 4-128)
Stabilizing the Outline tool
This section explains how to adjust the outline tool when
the judgment for an “OK” and “NG” image is not stable.
“Outline tool” (Page 4-51)

If the outline cannot be detected when the
target goes out of position
Adjust the search region. Broaden the search area if the
variation in the position of the target exceeds the area
to be searched.
“Search Range Settings” (Page 4-53)

If the detection becomes unstable due to the
e󰀨ect of unwanted outlines other than the
target

The outline disabling function can disable unwanted
outlines.
“Settings for disabling outlines” (Page 4-53)

Set the extraction sensitivity to [Low].
“Setting the sensitivity” (Page 4-54)

Set the search area so that non-target images
containing unwanted outlines are not searched.
“Search Range Settings” (Page 4-53)

Set the search algorithm to [High Accuracy].
“Search Algorithm” (Page 6-16)

Make an image with no unwanted outlines by making
the target background plain, etc.
If the Edge Emphasis (Filter) of digital zoom
is set to [ON], unnecessary outlines may be
detected.

If the target tilts and the outline cannot be
detected

Adjust the rotation range. Broaden the rotation range
if the tilt of the target exceeds the rotation range
(default value: ± 20°).
“Rotation Range” (Page 4-56)

To stabilize the detection, the tool window will search
with the range ± a few degrees wider than the setting
value of the rotation range. (The tool window will
search ± a few degrees even if the rotation range is
set to 0°.)
Set the Margin to [OFF] when you would like to detect
the target according to the set rotation angle of the
target.
“Margin” (Page 4-55)

If the matching rate di󰀨erence between an
“OK” and “NG” image is small
Adjust the search algorithm.
Ifthereisnodi󰀨erencebetweenthematchingratefor
an “OK” and “NG” image, select [MidSens] or [High
Accuracy]. [High Accuracy] improves judgment accuracy
more than [MidSens]. However, the processing time
becomes longer.
“Search Algorithm” (Page 4-56)
6
Adjusting