E3ZM-V Datasheet, PDF (10/12 Pages) Omron Electronics LLC – Print mark detection photoelectric sensor in compact stainless steel housing

Automatic teaching (Remote)
1. Send a pulse with a duration of at least 2 s but less than 10
s min. to the remote control input (pink).
2. Teaching will be performed automatically when the mark
(the light level with the shorter detection time) passes
through the beam spot.
Make sure the mark passes through the beam spot for at
least 1.5 ms.
Pass the mark through the beam spot at least seven times
to complete the teaching process.
There must be a difference in light intensity between the
mark and the background for teaching to be successful.
3. Detection will begin and the output will turn ON when the
mark (the light level with the shorter detection time) is de-
tected.
Note: Determine when teaching has been completed by confirming that the out-
put turns ON for the mark and OFF for the background. If the output does
not turn ON for the mark and OFF for the background within one minute
after the remote control input is applied, teaching has not been success-
ful. Apply the remote control input again.
Teaching starts
ON
Remote control input
OFF
2 to 10 s
Automatic
teaching
Intensity of
light received
Within 1 min*
Teaching is completed
4’
1’
2’
3’
5’
6’
7’
2
3
1
4
5
6
7
Time
Mark (shorter passing time) → Output ON
Threshold setting at optimal position
Background (longer passing time) → Output OFF
Lit
Teaching indicator (red)
Off
Sampling
(7 marks)
Time
Time
*If seven marks do not pass within one minute of the remote control input, the teaching operation will be cancelled.
Precautions for Using Automatic Teaching (Remote)
• With automatic teaching (remote), the output is always
turned ON for the light level with the shorter detection time.
Use 2-point teaching (manual) to turn OFF the output for
the light level with the shorter detection time.
• Faulty detection is possible when using automatic teaching
(remote) if there is considerable movement in the sensing
object or if the surface of the object is stepped or contains
protrusions.
In cases such as these, use 2-point teaching.
• Do not use automatic teaching for backgrounds that are not
monochrome.
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Photoelectric Sensor