Datasheet

FIBER
SENSORS
LASER
SENSORS
PHOTO-
ELECTRIC
SENSORS
MICRO
PHOTO-
ELECTRIC
SENSORS
AREA
SENSORS
SAFETY
COMPONENTS
PRESSURE
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE
SENSORS
SENSOR
OPTIONS
WIRE-
SAVING
SYSTEMS
MEASURE-
MENT
SENSORS
STATIC
CONTROL
DEVICES
LASER
MARKERS
PHOTO-
ELECTRIC
SENSORS
Selection
Guide
Amplifier
Built-in
EX-10
CX-400
EX-20
EX-30
EX-40
EQ-30
EQ-500
MQ-W
RX-LS200
RX
CY
PX-2
RT-610
Amplifier-
separated
Power Supply
Built-in
NX5
VF
SU-7 / SH
SS-A5 / SH
Other
Products
CX-400
Amplier
Built-in
Compact Photoelectric Sensor CX-400 SERIES
248
PRECAUTIONS FOR PROPER USE
All models
Mounting
The tightening
torque should be
0.5 N·m or less.
•
Others
Do not use during the initial transient time (50 ms) after
the power supply is switched on.
•
Sensor
mounting
bracket
(Optional)
M3
(length 12 mm 0.472 in)
screw with washers
Refer to p.986~ for general precautions.
CX-49□ CX-48□
Retroreective type sensor (excluding CX-491□)
Please take care of the following points when detecting
materials having a gloss.
•
Retroreective type sensor with polarizing lters (CX-491□)
If a shiny object is covered or wrapped with a transparent
lm, such as those described below, the retroreective type
sensor with polarizing lters may not be able to detect it.
In that case, follow the steps given below.
•
Example of sensing objects
Can wrapped by clear lm
Aluminum sheet covered by plastic lm
Gold or silver color (specular) label or wrapping paper
•
•
•
Steps
Tilt the sensor with respect to the sensing object while tting.
Reduce the sensitivity.
Increase the distance between the sensor and the
sensing object.
•
•
•
Retroreective type sensor for transparent object sensing (CX-48□)
Optimum sensing is possible when the position of the
transparent sensing object is set at the center of the
sensor and the reector. If the sensing position is set
near the sensor or the reector, the sensing may be
unstable. In this case, set the sensing position at the
center of the sensor and the reflector.
•
1
Make L, shown in the
diagram, suciently long.
2
Install at an angle of 10 to
30 degrees to the sensing
object.
L
10° to 30°
Make L sufficiently
long
Sensing
object
Reflector
Glossy surface
When the sensor detects an uneven plastic receptacle or
glass bottle, the received-light amount may dier with the
sensing position or direction. Adjust the sensitivity after
conrming the stable sensing condition by turning the
sensing object, etc.
When sensing pipe-shaped transparent sensing object,
set it in a standing, not lying, position as shown in Figure
A. The sensor may fail to detect a lying object as shown
in Figure B.
•
•
Sensor
Reflector
Transparent sensing object
Reflector
Sensor
A
Reflector
Sensor
B
CX-44□
Mounting
Care must be taken regarding the sensor mounting
direction with respect to the object’s direction of movement.
•
Do not make the
sensor detect an
object in this direction
because it may cause
unstable operation.
Sensing
object
Sensing
object
Sensing
object
When detecting a specular object (aluminum or copper
foil, etc.) or an object having a glossy surface or coating,
please take care that there are cases when the object
may not be detected due to a change in angle, wrinkles
on the object surface, etc.
•
When a specular body is present below the sensor, use the
sensor by tilting it slightly upwards to avoid wrong operation.
•
Specular
face
Tilt
If a specular body is present in the background, wrong
operation may be caused due to a small change in the
angle of the background body. In that case, install the
sensor at an inclination and conrm the operation with
the actual sensing object.
•
Correct Correct Incorrect
Incorrect Correct
IncorrectCorrect
Never use this product as a sensing device
for personnel protection.
In case of using sensing devices for
personnel protection, use products which
meet laws and standards, such as OSHA,
ANSI or IEC etc., for personnel protection
applicable in each region or country.
•
•
CX-48□