Margin
Margin
Near-side threshold value
Far-side threshold value
Background
ON
OFF
OFF
Object
・This can be executed if [Object] is set when Teaching Selection in "6
Detailed Settings" ( page 9) is executed. ([Background] is the
factory setting.)
・When this teaching is executed, the sensor memorizes background
information (di intensity *1) and obtain difference from that
information to detect the object.
・This can be executed if [Sensitive] is set when Background Reference
Teaching in "6 Detailed Settings" ( page 9) is executed. ([Normal] is
the factory setting.)
*1. Intensity varies depending on the reflectance or the surface state.
・[Dist + Int] is selected automatically as the output mode.
・With the output 2 function set to[Out2 Single], if background reference
teaching (sensitive) is executed, the output 2 function is forcibly changed to
[Out1 Invert].
・Coincidence with the background information is displayed as 0-100%. The
displayed value is set as 100 after teaching for the background. Coincidence
decreases as difference from the background information.
・The threshold value of the factory setting is 90.
Note 1. When background reference teaching (sensitive) has been executed, use the
sensor at least 10 minutes after turning ON the power.
Note 2. When using the sensor to detect a transparent object, be sure to check
operation in advance.
Note 3. When response time has been changed, execute teaching again.
The ABT function which controls the influence of the moderate variation of the
background is enabled automatically. The memorized background information is
corrected automatically. In ABT function, correction time can be selected from four
options (OFF / 0.3sec / 1sec / 3min). "6-11 ABT Function" ( page 11)
■Object Teaching [Teach 3sec (Object)]
■Background Reference Teaching (Sensitive)
[Ref. Teach (Sensitive)]
■Teaching cancel display
Advanced Teaching
4-2
Teaching Display
4-3
Use for teaching with an object.
Use to detect something transparent.
Display
Description
Indicator
Indicator
Indicator
Orange
Orange
Orange*3
Normal
operation
Green *1
Green *1
Green *1
Lighting
Lighting
Lighting
Teaching
Cancelled
1. Press and hold the busson with an object (longer than 1s and shorter than 5s).
Release the button when [Object Teach] is displayed on the display
TEACH
T
・[Window BGS] is selected automatically as the output mode.
●Threshold setting after teaching is completed
●Main screen after teaching is completed
・The threshold value is set with ± margin to the background.
・Margin is set automatically to the optimal value depending on the detecting
distance.
・Shown above is applicable to the case of N.O. output logic. In the case of N.C.,
this is inverted.
BGS
1. Press the button quickly without any objects (longer than 25ms and shorter than 1s).
TEACH
T
FGS
2. Press and hold the button without any objects (longer than 1s and shorter than 5s).
Release the button when [Reference (Sensitive)] is displayed on the display
TEACH
T
●If detection is not stable when background reference teaching (sensitive) is executed:
Possible causes are as follows. Check the installation state and execute teaching again.
*1. This is the operation in the standard I/O mode. The indicator blinks in the IO-Link mode (at
1s intervals).
*2. The display time is 2 seconds after teaching is executed.
*3. When 2-point teaching is put on hold or the button is pressed and held, the orange
indicator blinks slowly (at 1s intervals).
When 2-point teaching is put on hold, if
the Teach button is pressed and held
for 5s or more, [Teach Cancel ] is
displayed and teaching can be
cancelled.
■Teaching error display*2
Error name
/display
Teaching execution error
Teaching failed.
The difference of
the detected values
of the 1st and 2nd
points is too small
when 2-point
teaching is
executed.
Confirm that the
sensor-object
distance is within
the detecting range
and execute
teaching again.
Expand the
distance between
1st and 2nd points
and execute
teaching again.
■Teaching success display*2
Display
Teaching
succeeded
Flashing
(at 0.6s intervals)
Flashing
(at 0.2s intervals)
Teaching near error
Alternate
lighting
Countermeasure
Possible causes
6
The distance between the sensor and
the background varies by more than
5% of the detection distance.
Check the installation condition.
The reflected light from the
background does not have sufficient
intensity.
Keep the distance between the sensor
and the background close.
The specular reflection light from the
background enters.
Tilt the sensor to prevent specular
reflection light from entering (10° or
more). The installation shown below is
recommended for the detection of
transparent objects.
Factor
Countermeasure
Background
Transparent
object
Transparent
object
Background
As far as
possible
As close as
possible
Tilt the optical
axis downward
Tilting the optical axis
left and right is also effective.
