Omron E4C-UDA Instruction Manual page 9

(3) Automatic-teaching (set by a moving workpiece)
Measure the sensing distance while the key is held down, and set the value between the minimum and maximum distance
values as the threshold value.
Before making this setting, make sure that the MODE key setting is set to [AUTO]. The default setting is [2PNT]. Refer to
"Function Transition Charts" in "5. Function Overview."
Operation
Display
(4) Position teaching
Set the sensing distance of the workpiece as the threshold value.
Before making this setting, make sure that the MODE key setting is set to [PPT]. The default setting is [2PNT]. Refer to
"Function Transition Charts" in "5. Function Overview."
Operation
Display
• Teaching error display
An error occurs if the following is displayed on the sub-display after teaching is executed.
Execute teaching again.
OVER error
Flashes twice.
The taught distance is outside the sensing range.
Check the position of the workpiece, and then execute teaching again.
OVER
NEAR error
Flashes twice.
The difference between the maximum taught distance and the minimum
taught distance is too small.
NEAR
Check the teaching position, and then execute teaching again.
(This error occurs with teaching with and without a workpiece, and
automatic-teaching.)
Workpiece Workpiece
Workpiece
Hold down the MODE key
for more than 3 seconds.
Sensing distance AUTO
"AUTO" is displayed as the sub-
display value, and sampling of
the sensing distance is started.
Workpiece Workpiece
Workpiece
Hold down the MODE key
for more than 3 seconds.
PPT
Threshold
value
"PPT" is displayed on the main
display and the preset threshold
value flashes on the sub-display.
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AUTO Threshold
value
The preset threshold
value flashes twice.
Sensing
Threshold
distance
value
"PPT" changes to the current
sensing distance to indicate that
the setting is completed.