A-127
E3G
E3G
Operation
Adjustment Steps
Distance Setting (Teaching)
Select the most appropriate teaching method in reference to the following descriptions.
Normal one-point teaching
Note: Perform normal one-point teaching with the background.
Normal two-point teaching
E3G-L/ML
Pro-
ce-
dure
Operation
1
Install, wire, and turn on the Sensor.
2
Perform distance setting (teaching). Refer to "Distance Setting (Teaching)".
3
Check that the mode selector is set to RUN.
Application
Teaching without sensing
objects (i.e., Teaching the
background).
Setting a threshold in the
middle between the back-
ground and sensing object
for operation.
Detection of glossy objects
in front of the background.
Setting the maximum
sensing distance of the
Sensor.
Teaching
Normal one-point teaching Normal two-point teaching
Zone teaching
Maximum distance setting
(in normal mode)
Setting method
Press the
button
with the background ob-
ject.
Press the
button
with the background ob-
ject.
Press the
button
with the background object
(conveyor, etc.).
Press the
button
for longer than three sec-
onds.
Set threshold
Threshold (a) is set to a
distance in front of the
background of 20% of the
background distance.
Threshold (a) is set ap-
proximately in the middle
between the background
and sensing object.
Thresholds (a and b) are
set in the sensing distance
on condition that the differ-
ence between these
thresholds is approximate-
ly 10% of the whole sens-
ing distance.
The threshold is set in such
manner that the stability in-
dicator will turn ON at ap-
proximately 2 m if the
sensing object is white pa-
per.
Output ON range
The output is ON between
the Sensor and La.
The output is ON between
the Sensor and La.
The output is ON between
La and Lb.
The output is ON whenev-
er the sensing object is lo-
cated between the Sensor
and at a distance of 2.2 m.
TEACH
TEACH
TEACH
TEACH
La: Distance equivalent to threshold
(a)
Lb: Distance equivalent to threshold
(b)
Threshold a
(La)
Background
ON
E3G-L/ML
Threshold a
(La)
Background
ON
E3G-L/ML
Threshold a
(La)
L-ON
D-ON
Threshold b
(Lb)
Background
OFF
E3G-L/ML
OFF
ON
ON
ON
OFF
Object
Normal Mode1. Normal One-
point Teaching
2. Normal Two-point Teaching
Zone Mode Zone Teach-
ing
Pro-
ce-
dure
Operation
1
Set the mode selector to
.
2
Set the NORMAL/ZONE mode selector to
.
3
Press the
button with the background.
The teaching indicator (red) will turn ON.
4
Set the mode selector to
. (Set to L-ON or D-ON
mode.)
Pro-
ce-
dure
Operation
1
Set the mode selector to
.
2
Set the NORMAL/ZONE mode selector to
.
3
Press the
button with a sensing object.
The teaching indicator (red) will turn ON.
TEACH
NORMAL
TEACH
RUN
TEACH
NORMAL
TEACH
4
Move the sensing object and press the
button with
the background.
If the teaching is successful, the teaching indicator
(green) will turn ON.
If the teaching is not successful, the teaching indicator
(red) will flash.
5
When the teaching is successful, the setting is complete.
Set the mode selector to
. (Use the operation mode
selector to set L-ON/D-ON.)
When the teaching is not
successful, change the work position and setting distance
again, and restart the setting from step "3".
Pro-
ce-
dure
Operation
TEACH
RUN
F502-EN2-04.book Seite 127 Dienstag, 26. Juli 2005 5:48 17
