Owner's manual

3
Basic Operation
3-5
- Digital Fiber Sensor FS-N10 Series User's Manual -
3-3 Adjusting Sensitivity
This manual refers to the values that select ON/OFF output of the sensor amplifiers as
"Set values." In addition, the manual refers to the adjustment of set values as "Adjusting
Sensitivity." This section describes the sensitivity adjusting method.
Sensitivity adjusting method for the FS-N10 Series is broadly divided into two categories:
① Preset
Simple operation allows sensitivity adjustment concurrently with correction of the
received light intensity to "100.0" or "0.0"
This function helps preventive maintenance by eliminating dispersion of the received
light intensity due to the contents of detection or individual workpieces.
However, this is not suitable for detection of transparent workpiece because there is a
small difference in the received light intensity between presence and absence of a
workpiece.
② Calibration
Sensitivity can be adjusted by a simple operation. This function does not correct the
received light intensity.
This function is applied for using the received light intensity without correction or for
high-precision detection.
Calibration is also available in a preset state.
How to select sensitivity adjusting method
List of Sensitivity Adjusting Methods
Sensitivity
adjusting
method
Status of use Functions Contents Reference
Preset
Basics
Using thrubeam/retro-reflective
models
Preset
When there is no workpiece, by sim-
ply pressing the PRESET button,
sensitivity adjustment is completed.
3-6
Using reflective model
Preset to maxi-
mum sensitivity
When there is no workpiece, by sim-
ply holding the PRESET button,
sensitivity adjustment is completed.
3-8
At times
like this
Not successfully displaying the
intensity level as "100.0" and
".0" depending on the presence
of a workpiece.
Work preset
The status in which "100.0" or ".0" is
displayed can be set at your choice
3-7
Mobile object moves fast
Full automatic
preset
Preset is enabled by using a fast-
moving wo
rkpiece.
3-9
Calibration
Basic
Us
ing thrubeam/retro-reflective
models
Two-point
calibration
The setting can be established just
by pressing the [SET] button once
when a workpiece is present and
absent.
3-11
At times
like this
Mobile body moves fast
Full automatic
calibration
Calibration is enabled by using a
fast-moving workpiece.
3-13
Using the unit in the environ-
ment that tends to get dirty
easily.
Maximum sensi-
tivity calibration
The setting seldom causes malfunc-
tion even in the environment that
tends to get dirty easily.
3-12
Using the unit for positioning
Positioning cali-
bration
The setting suitable f
or positioning is
available.
3-14
Using the unit for
high-preci-
sion detection
Percentage cali-
bration
Effective for making correction from
external devices such as PLC.
3-15