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PRECAUTIONS FOR PROPER USE
Amplifier
Teaching
The threshold values can be set by 2-level teaching, limit teaching or full-
auto teaching, when the MODE indicator / TEACH (yellow) lights up.
In case of 2-level teaching
This is the method of setting the threshold value by teaching two levels, corresponding to
the object present and object absent conditions. Normally, setting is done by this method.
Step
Description
Set the fiber within the sensing
range.
Press MODE key to light up
1
MODE indicator / TEACH
(yellow).
Press jog switch in the object present condition.
If the teaching is accepted, the read incident light intensity blinks in the digital display.
Thru-beam type
Reflective type
2
MODE indicator / TEACH (yellow) blinks.
Press jog switch in the object absent condition.
Thru-beam type
Reflective type
3
If the teaching is accepted, the read incident light intensity
blinks in the digital display and the threshold value is set
at the mid-value between the incident light intensities in
the object present and the object absent conditions. After
4
this, the judgment on the stability of sensing is displayed.
In case stable sensing is possible: '
Stability indicator (green) blinks.
In case stable sensing is not possible: '
Stability indicator (green) is off.
5
The threshold value is displayed.
6
'
' blinks in the digital display.
The incident light intensity appears in the digital
7
display and the setting is complete.
Note: Do not move or bend the fiber cable after the sensitivity setting. Detection may become unstable.
In case of full auto-teaching
Full auto-teaching is used when it is desired to set the threshold value
without stopping the assembly line, with the object in the moving condition.
Step
Description
Set the fiber within the sensing
range.
Press MODE key to light up
1
MODE indicator / TEACH
(yellow).
Press the jog switch continuously for 0.5 sec. or more
2
with the object moving on the assembly line. (The
incident light intensity is displayed during sampling.)
'
' is displayed on the digital display. Release the
3
jog switch when the object has passed.
If the teaching is accepted, the read incident light intensity
blinks in the digital display and the threshold value is set
at the mid-value between the incident light intensities in
the object present and the object absent conditions. After
4
this, the judgment on the stability of sensing is displayed.
In case stable sensing is possible: '
Stability indicator (green) blinks.
In case stable sensing is not possible: '
Stability indicator (green) is off.
5
The threshold value is displayed.
6
'
' blinks in the digital display.
The incident light intensity appears in the digital
7
display and the setting is complete.
Display
' is displayed.
' blinks.
FX-301B(P)/G(P)/H(P) only
Display
' is displayed.
' blinks.
08/2005
In case of limit teaching
This is the method of setting the threshold value by teaching
only the object absent condition (stable incident light
condition). This is used for detection in the presence of a
background body or for detection of small objects.
Step
Description
Set the fiber within the sensing
range.
Press MODE key to light up
1
MODE indicator / TEACH
(yellow).
Press jog switch in the object absent condition.
If the teaching is accepted, the read incident light
intensity blinks in the display.
Thru-beam type
Reflective type
2
MODE indicator / TEACH (yellow) blinks.
3
Turn jog switch to the '
' side or '
If jog switch is turned to the '
(twice) the display from right to left, and the threshold
level is shifted to a value approx. 15 %
higher (lower sensitivity) than that set
at 2. (Note 1)
This is used in case of reflective type fibers.
If jog switch is turned to the '
(twice) the display from left to right, and the threshold
level is shifted to a value approx. 15 %
lower (higher sensitivity) than that set
4
at 2. (Note 1)
This is used in case of thru-beam type
fibers.
After this, the judgment on whether the setting shift
amount can be shifted or not is displayed.
5
In case shifting is possible: '
In case shifting is not possible: '
6
The threshold value is displayed.
7
'
' blinks in the digital display.
The incident light intensity appears in the digital
8
display and the setting is complete.
Notes: 1) The approx. 15% amount of shift is the initial value. The amount of
shift can be changed in the PRO mode from approx. 5 to 80 %
(5 % step). Refer to the 'Fiber Sensor Guide Book' or 'SUNX fiber
sensor home page' (http://www.fiber-sensor.com) for more details
pertaining to setting instructions.
Notes:
2) Do not move or bend the fiber cable after the sensitivity setting.
Detection may become unstable.
Notes: 1) The threshold value's shift amount can be selected in PRO mode.
Refer to the 'SUNX fiber sensor home page' (http://www.fiber-
sensor.com) for more details pertaining to setting instructions.
(Increments of 5 % between –45 and 45 % for setting possible. 0 %
default.)
Notes:
2) Do not move or bend the fiber cable after the sensitivity setting.
Detection may become unstable.
FX-301
Display
' side.
' side, '
' scrolls
' side, '
' scrolls
' blinks.
' blinks.
97
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