Through-beam Sensor Heads: T Mode Functions
Section 3-7
77
Automatic Teaching
For automatic teaching, measurements are performed while the RIGHT
Key and the ENT Key are pressed at the same time. The center value
between maximum and minimum values is set as a threshold.
The threshold value is set when the keys are released.
The threshold can be set according to the sensing object.
Example: Automatic Teaching
Sensor Head Emitter
Maximum incident beam width
Sensor Head Receiver
Sensing object 1
Teaching started.
Sensor Head Emitter
Sensor Head Emitter
Sensor Head Emitter
The sensing object
is moved.
The sensing object
is moved.
Medium incident beam width
Sensor Head Receiver
Sensor Head Receiver
Sensor Head Receiver
Sensing object 2
Teaching continued.
Minimum incident beam width
Sensing object 3
Teaching completed.
Sensing object 4
Threshold:
(Maximum value
−
Minimum value)/2
Z157-E1-01C.book Page 77 Thursday, August 31, 2006 5:13 PM