Operating Procedures: Photoelectric Sensors
31
Adjusting Thresholds
Fine adjustment of thresholds can be performed after teaching.
Operation can be performed remotely.
➜
Refer to
Remote Control Function
on the next page.
Detection Level Indicators
The control output will turn ON if the detection level exceeds the threshold level. The detection level display will depend on the
teaching method.
One-point Teaching
Two thresholds (i.e., above and below the mark) are set. The
indicators show the degree of match with the mark.
Two-point teaching and Automatic Teaching
A threshold is set in the middle between the mark (first
registration) and background (second registration). The
indicators show the level of excess gain between the mark
and the background.
Step
Operation method
Operation condition
1
Set the mode selector switch to ADJUST.
2
In the ADJUST mode, specify the direction of adjustment using the
Up/Down selector switch. The threshold will transition each time the
SET Button is pressed.
(Two indicators will be lit at the same time for even-numbered
threshold levels.)
3
After the setting is completed, set the mode selector switch to RUN.
LEVEL
OUT
TEACH
RUN
SET
ADJ
LEVEL
OUT
TEACH
RUN
SET
ADJ
LEVEL
OUT
TEACH
RUN
SET
ADJ
Press
Downward
selection
Upward
selection
Moving the threshold up
Moving the threshold down
Thresh-
old
indica-
tors
Thresh-
old
1
2
3
4
5
6
7
8
9
10 11 12 13
Detection level
Operation
indicator
Detection level
indicators
Threshold
Output OFF
Threshold
Mark
Threshold
Output OFF
Output ON
Detection level
Operation
indicator
Detection level
indicators
Threshold
Mark
Threshold
Background
Output OFF
Output ON
