E3S-2B41 Datasheet, PDF (8/15 Pages) Omron Electronics LLC – Photoelectric Sensor with Built-in Amplifier

Safety Precautions
WARNING
This product is not designed or rated for
ensuring safety of persons.
Do not use it for such purposes.
Precautions for Correct Use
Do not use the product in atmospheres or environments that
exceed product ratings.
If the sensing object has a metallic or shiny surface, the E3S-
R may not detect it properly. To avoid this situation, place the
sensing object so that it is not at right angles to the
Photoelectric Sensor.
Glossy surface ^{Sensing object}
Reflector
10° to 20°
Create an angle.
● Attaching the E39-S Slit
• The Slit can be fitted vertically or horizontally as indicated
by the dotted line. Make sure that Slits for the Emitter and
the Receiver are fitted in the same orientation.
• Place the packing in the supporter and hook the claws on
the indentations in the Sensor head.
• If the supporter is contacting the mounting surface, insert a
spacer to separate it. (Refer to Slit Dimensions.)
• An operating position accuracy of 0.1 mm max. can be
achieved for a Through-beam Sensor without Slits.
Supporter
Cut-out section
Claws
Slit
Packing B
Sensor head
Protrusion
Packing A
Indentation
Sensor with Slits
Applicable
Photoelectric
Sensor
Model
Item
Slit
width
Sensing
distance
Sensing object
Degree of
protection
0.5 mm
230 mm
0.5 mm
E3S-5E4, -5E41 (42)
E39-S1
1 mm 2 mm
4 mm
580 mm 1200 mm 2500 mm
1 mm 2 mm
4 mm
IP60
E3S-2E4, -2E41
E39-S2
0.5 mm 1 mm
2 mm
170 mm 420 mm 820 mm
0.5 mm 1 mm 2 mm
E3S
● Sensors with Open-collector Outputs
Sensors with Open-collector Outputs
Type
Output
type
Voltage or
E current
output
Open-
C collector
output
Open-
B collector
output
Output
transistor
NPN
NPN
PNP
Rated
current
output
1.5 to
4 mA
---
---
Switching
current
Output
protection
circuit
Provided against
80 mA max. an increase in the
(sinking) residual output
voltage
100 mA
max.
(sinking)
Provided:
Output transistor
cutoff
100 mA
max.
(sourcing)
Provided:
Output transistor
cutoff
The model numbers are as follows:
Example:
E3S-DS10E4 (E type)
E3S-DS1C4 (C type)
E3S-DS1B4 (B type)
C4 (C41, C42) Sensors
Brown *
+V
Photo-
electric
Sensor
main
circuit
Z
2.2 Ω
Load
(relay)
Black (output)
Blue *
0V
C4 (B41, B42) Sensors
2.2 Ω
Z
Photo-
electric
Sensor
main
circuit
Brown *
+V
Black (output)
Blue *
Load
(relay)
0V
Z: Zener diode (Vz = 30 V)
* The operation mode depends on the wiring of the
brown and blue lines.
Note 1. Only C42 models with die-cast cases are available.
2. The Emitter for a Through-beam C4-type Sensor is the same as the
Emitter for an E4-type Sensor. (E.g., E3S-5LE4)
3. When a C- or B- type Sensor experiences a load short-circuit or overload,
the output transistor will be turned OFF. Check the load conditions before
turning the power back ON.
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