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Operation
Sensitivity adjustment (distance setting type, Light-ON)
Sequence
Detection state
Photoelectric
Sensor
(1) Point (A)
Sensing
object
Photoelectric
Sensor
(2) Points (B),
(C)
Sensing
object
(3) Setting
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Precautions
Correct Use
Design
Cable
The oil-resistant cable is used to ensure oil resistance.
(E3S-CL2)
Installation
Sensor installation
Mounting orientation
• Install the photoelectric sensor in
such manner that its detection
surface and the object surface
are parallel (without inclination
relative to the sensing object).
If the sensing object has a
glossy surface, incline the Sen-
sor by 5° to 10° as shown on the
right. In this case, ensure that
the Sensor is not influenced by
any background objects.
• If there is a mirror-smooth object under the photoelectric
sensor, operation may become instable. Therefore, incline
the photoelectric sensor as shown below or move it away
from the object.
Sensing object
A-116
Position of dis-
State of setting dis-
tance setting ad-
tance indicator
juster
(A)
1
(A)
3
Min
Max
3
(C)
(C)
(B)
5
(B)
Min
Max
(A)
1
(A)
3
(C)
(C)
5
Min
Max
Sensing surface
Sensing object surface
Glossy object
Mirror-like object
Indicator state
ON Æ OFF
OFF Æ ON
Place a sensing object in the predetermined
position, turn the adjuster clockwise until the
incident indicator (orange) is turned ON, and
define this position as (A).
Stability indicator
Operation indicator
(green)
(orange)
(1) If there is a background object, remove the
ON Æ OFF
ON Æ OFF
Stability indicator
Operation indicator
(green)
(orange)
(2) If there is no background object, define the
Set the adjuster in the middle of positions (A)
ON
ON ´ OFF
and (C). Also make sure that the stability indi-
cator (green) is turned ON when there is an
object and when there is no object. When the
indicator is not turned ON, reexamine the de-
Stability indicator
Operation indicator
tection method since there is a little allowance.
(green)
(orange)
• Install the photoelectric sensor in either of the following ori-
entations, being careful of the direction in which the sensing
object will move.
Sensing object
Sensing object
Movement direction
Movement direction
• Also, when the color/material of the sensing object varies
extremely, install the photoelectric sensor in either of the
following orientations.
Movement direction
• Install the photoelectric sensor so that the sun, fluorescent
lamp, incandescent lamp or any other strong light will not
enter the directional angle range of the sensor.
Mounting Precautions
• Do not strike the Photoelectric Sensor with a hammer or
any other tool during the installation of the Sensor, or the
Sensor will loose its water-resistive properties.
• Use M4 screws.
• Tighten the screws to the torque of 1.2 Nm max.
Standard Photoelectric Sensors
Adjustment Steps
sensing object, turn the adjuster further
clockwise until the incident indicator (or-
ange) is turned ON, and define this posi-
tion as (B). Turn the adjuster counterclock-
wise from (B) until the incident indicator
(orange) is turned OFF, and define this po-
sition as (C).
maximum adjuster position (Max) as (C).
Sensing object
Movement direction
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