Datasheet

A-262 Standard Photoelectric Sensors
Plug (for E3S-A with connector)
Internal Connection
External connection
Tightening Plug
Turn part B by hand (do not use a pliers or the plug will be
damaged) and tighten it with part C so that length A is nearly
zero. Part B must be tightened properly with part C, or other-
wise part B could be loosen by vibration and the sensor will
not maintain the specified enclosure ratings.
Note: Use the spacer (sold together) to mount the photoelectric sensor with or
without the enclosed mounting bracket (refer to Dimensions (page A-
244)).
Precautions
The supplied voltage must be within the rated voltage range.
Unregulated full-or half-wave rectifiers must not be used as
power supplies.
If the input/output lines of the photoelectric sensor are placed
in the same conduit or duct as power lines or high-voltage
lines, the photoelectric sensor could be induced to malfunc-
tion, or even be damaged, by electrical noise. Either separate
the wiring, or use shielded lines as input/output lines to the
photoelectric sensor.
Do not use a hammer to hit the amplifier when mounting or the
amplifier will loose watertightness.
Note the following when using the E39-R3, E39-RSA, or E39-
RSB reflector (tape):
1. Before applying adhesive tape to the reflector, make sure
that the reflector is free from oil or dust, or otherwise the ad-
hesive tape will not stick to the reflector properly.
2. Do not cut the reflector or the reflector will loose watertight-
ness.
3. Do not press the reflector with a metal object or a nail, or
otherwise the reflector will not function properly.
Position of Optical Axis of Through-beam Model
Unlike conventional through-beam models, the E3S Through-
beam Photoelectric Sensor incorporates 2 lenses. But the
lens actually in use is the one marked with an arrow indicating
the position of the optical axis. When using a slit, attach it to
the lens marked with the arrow.
Position of Arrow Indicating Optical Axis
Item Color of cord Connection
pin No.
Application
For DC Brown 1 Power supply (+V)
Black 4 Output
Blue 3 Power supply (-V)
Note: Pin No. 2 and 4 are connected internally.
Terminal No.
Brown
Blue
Black
NPN Output
PNP Output
Load
+ V
0 V
Output
Brown
Black
Blue
Plug
+ V
0 V
Load
Output
Brown
Black
Blue
Plug
(C)
(B)
(A)
Model Position of lens in use
E3S-A (vertical) Top
E3S-A (horizontal) Bottom
Unused lens
Lens actually in use
(attach the slit to this lens)
Arrow indicating
optical axis
position