Datasheet

Operation

OUTPUT CIRCUITS
Output
Configuration
Mode Switch Output Transistor Output Circuits
NPN
Light-ON ON when light is
received.
Light
indicator
Stability
indicator
Load
PNP output
transistor
N
P
N
a
n
d
P
N
P
(Orange)
(Green)
Photoelectric
i
Brown
B
l
a
c
k
Load
current
C
o
n
t
r
o
l
10 to 30 VDC
ZD
Dark-ON ON when light is
not received.
NPN and PNP
output selector
NPN output
transistor
P
h
o
t
o
e
l
e
c
t
r
i
c
sensor main
circuit
Set the NPN
and PNP out-
put selector to
NPN.
Black
Blue
0V
Control
output
ZD
ZD : Vz = 39 V
PNP
Light-ON ON when light is
received.
Photoelectric
Light
indicator
Stability
indicator
(Orange)
PNP output
transistor
N
P
N
a
n
d
P
N
P
Brown
B
l
a
c
k
10 to 30 VDC
ZD
(Green)
Control
Dark-ON ON when light is
not received.
P
h
o
t
oe
l
ec
t
r
i
c
sensor main
circuit
Load
(
O
r
a
n
g
e
)
NPN and PNP
output selector
NPN output
transistor
Set the NPN
and PNP out-
put selector to
PNP.
Black
Blue
ZD
Load
current
C
o
n
t
r
o
l
output
ZD : Vz = 39 V
0V
 SENSITIVITY ADJUSTMENT
Item Position A Position B and C Setting
Adjustment
procedure
Place the detected object at the
desired location and turn the
adjustment knob clockwise until the
LIGHT indicator (orange) lights. This
is position A.
Background Object
Remove the detected object and turn the
adjustment knob clockwise until the LIGHT
indicator (orange) lights. This is position B.
Then turn the adjustment knob
counterclockwise until the LIGHT indicator
(orange) goes out. This is position C.
No Background Object
The maximum adjustment setting is used
as position C.
Set the adjustment to halfway
between A and C. Confirm that the
STAB indicator (green) remains lit
both with the detected object
present and not present. If the
STAB indicator does not remain lit,
reconsider the detection method to
enable stable operation.
Detecting
condition
Photoelectric sensor
Detected object
Photoelectric sensor
Detected object
Background
object
---
Status of
distance
setting knob
and distance
setting
indicator
Indicators
OFF ON
STABILITY
(green)
LIGHT
(orange)
OFF OFF
STABILITY
(green)
LIGHT
(orange)
ON OFF
STABILITY
(green)
LIGHT
(orange)
Note: The sensor must be set to within the rated detection range for application (see diagrams on next page).
Background interference can be a problem if the distance is set near the maximum value (5 to 6 on the scale). Factory settings are
as follows:
E3S-CL1: 20 cm (on white paper)
E3S-CL2: 50 cm (on white paper)
E3S-CL E3S-CL