E3S-C Datasheet, PDF (7/10 Pages) Omron Electronics LLC – Oil-resistive, long-distance photoelectric sensor (metal case)

Precautions
Correct Use
Design
Fuzzy mutual interference prevention
When reflective photoelectric sensors are installed side by
side, one sensor may receive the light from the other sensor,
which may disturb the incident signal, causing a malfunction.
The fuzzy mutual interference prevention monitors interfering
light for a predetermined period of time before light is emitted,
and imports the interfering light level and incident frequencies
as data. Using these values, fuzzy inference is made to find
the risk of malfunction to control the light emitting timing, re-
ducing the risk.
(When risk is low)
Light is emitted after interfering light is gone.
Light
interference
Emission
pattern
(When risk is high)
Light is emitted after shifting to a gap of interfering light.
Light
interference
Emission
pattern
Wiring Considerations
Cable
• An oil-resistance cable is used to ensure oil resistance.
• The bending radius should be 25 mm or more.
Installation
Sensor installation
• Note that during the E35-C installation, hammering it will
damage the water resistance function.
• Use an M4 screw, tightened to a torque of no more than
1.18 Nm.
(When using the mounting bracket)
• To set the sensor on the mechanical axis, use the optical
axis locking holes.
• When the sensor cannot be set on the mechanical axis,
move the E3S-C vertically and/or horizontally and set it in
the center of the area where the incident indicator is turned
ON. Make sure that the stability indicator is ON.
(Direct installation)
Install the E3S-C as shown below.
[M4 screwing]
Two, 4.5 dia.
through holes
M4
[M3 screwing]
M4 hole
M4 hole
2-M3
M4 hole
M4 hole
M3
Optical axis adjustment
(Optical axis locking holes)
By fitting screws into the optical axis locking holes, the mount-
ing bracket is set onto the mounting shaft of the mounting
bracket.
For adjustment
Optical
axis
Mounting axis
Four M4 optical axis lock holes
A-152
Photoelectric Sensors