Datasheet

FIBER
SENSORS
LASER
SENSORS
PHOTOELECTRIC
SENSORS
MICRO
PHOTOELECTRIC
SENSORS
AREA
SENSORS
SAFETY
COMPONENTS
PRESSURE
SENSORS
INDUCTIVE
PROXIMITY
SENSORS
PARTICULAR
USE SENSORS
SENSOR
OPTIONS
WIRE-SAVING
SYSTEMS
MEASUREMENT
SENSORS
STATIC CONTROL
DEVICES
LASER
MARKERS
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
235
Compact Photoelectric Sensor CX-400 SERIES
PHOTOELECTRIC
SENSORS
BGS / FGS functions make even the most challenging settings possible!
For details on the operation of the BGS / FGS functions, refer to p.249, “BGS / FGS functions” of “PRECAUTIONS
FOR PROPER USE”.
FUNCTIONS
CX-44□
FGS (Foreground suppression) function
Light received at
position A
Light is not received
at position B, so a
object is judged to
be present
Light received
at position B
For glossy object
Object absent
OFF in this condition only ON in all other conditions
The sensor judges that an object is present when no light is
received at position B of the light-receiving element (2-
segment element). Accordingly, even objects that are glossy
can be sensed. This is useful if the object and background
are close together, or if the object being sensed is glossy.
Conveyor Conveyor Conveyor
A
Lens
Emitting
element
ON ONOFF
B
Setting
distance
A conveyor or
other back-ground
must be present
Object present
Setting distance
ObjectMoving object
in the back
Background
ONOFF
Light received at
element B, or
light not received
Element B
( Light received at element A )
Element A
BGS (Background suppression) function
The sensor judges that an object is present when light
is received at position A of the light-receiving element
(2-segment element).
This is useful if the object and background are far
apart. The distance adjustment method is the same as
the conventional adjustment method for adjustable
range reflective type sensors.
Less resources used
Based on environmental
considerations, simplied
packaging is used in order
to reduce waste.
In addition, the bag is
made from polyethylene
which produces no toxic
gases even when burned.
OTHERS
Strong against interference
The interference prevention function lets two sensors to
be mounted close together precisely.
Interference
prevention
filter (Optional)
Thru-beam type
Only CX-411
Automatic
interference
prevention function
Retroreflective type
Diffuse reflective type
Adjustable range reflective type
Not affected if the background
color changes or someone
passes behind the conveyor.
Unaffected by gloss, color or
uneven surfaces when sensing
objects present on a conveyor belt.
The BGS function is best suited for the following case
Background not present
When object and background are separated
The FGS function is best suited for the following case
Background present
When object and background are close together
When the object is glossy or uneven
BGS
FGS