KEYENCE FS-N10 Series - Manual (Page 30)

3-3 Adjusting Sensitivity
3
Ba
sic
Oper
ati
on
3-8
- Digital Fiber Sensor FS-N10 Series User's Manual -
This function calibrates the reference state to " .0 " and the state at which the received
light intensity is slightly higher as " 100.0 ".
This function is useful with the reflective model to detect while using the background
as a reference.
* Not available for the FS-N10 Series shipped before March 10, 2011.
Enabling the maximum sensitivity preset function
1
When no workpiece is present for the
reflective model, or when a workpiece
is present for thrubeam model/retro-
reflective model, press and hold the
[PRESET] button for 3 seconds or more
while the PST indicator is OFF.
Release the button when "
Auto " flashes.
Calibration is complete after the setting
value flashes momentarily, and then stops
(lights up).
The PST indicator lights in green, and the
setting value is set to "
50.0 ".
• When the amount of the light received is in saturated state (at a
value higher than at the time of extended display on page 4-30),
maximum sensitivity preset function cannot be implemented.
("
---- ---- " is indicated when operating 1.)
"Light emission/Received light intensity adjustment (Saturation
Canceling)" (page 3-18)
Disabling the maximum sensitivity preset function
When the PST indicator is lit, press and hold the [PRESET] button.
• The PST indicator turns off, indicating that the maximum sensitivity preset func-
tion has been disabled.
Maximum Sensitivity Preset Function
Workpiece
Setting value Setting value
Thrubeam Model/Retro-reflective Model Reflective Model
Received light intensity Received light intensity
No workpiece
With workpiece No workpiece*
With workpiece*
1 1
Saturation point " 100.0 "
" 50.0 "
" .0 "
" 100.0 "
" 50.0 "
" .0 "
Saturation point
* Where detection occurs on a target having a background, the maximum sensitiv-
ity setting ignores the background. Maximum sensitivity setting is not available if
the background is more reflective than the workpiece.
Point