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Keyence FS-N11N - Connecting Amplifiers and Calibration Methods; Connecting Multiple Amplifiers; Two-point Calibration; Reflective Model Setting

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2
Connecting Multiple Amplifiers
Up to 16 sub units can be connected to one main unit.
1 Remove the protection covers of the main unit and
sub unit(s).
2 Install the amplifiers one by one on the DIN rail.
3 Engage the two claws of the sub unit with the
recesses on the main unit side until you hear a
click.
4 Attach the end units (option: OP-26751) to the
both ends of the connected amplifiers in the same
way as in step (2).
5 Sandwich the amplifiers between the end units.
Tighten the screws at the top (two screws x two
units) with a Phillips screwdriver to fix the end
units.
Calibration Method
Detecting Even Small Differences
z
Two-point Calibration
Two-point calibration is the basic method for making calibration.
You can set the sensitivity level automatically, simply by pressing the [SET] button twice.
Just press once with the workpiece set up, and once without.
Two-point calibration performs detection at a location where there is a workpiece, and
another location where there is not, uses the intermediate value as the setting.
If the sensitivity difference does not have enough room, "- - - -" flashes for about two sec-
onds after the calibration is complete. The set value is stored in memory even in that case.
Other Calibration Methods
Increase Resistance to Dust and Dirt
z
Maximum Sensitivity Setting
In the state shown below, press and hold the [SET] button for three seconds and stop push-
ing when "5'6" flashes.
The sensitivity is set slightly higher than the light intensity.
Calibrate with Moving Workpiece
z
Full Auto Calibration
Press and hold the [SET] button with no workpiece in place, while “5'6” is flashing, pass
through a workpiece. (Continue pressing the [SET] button while the workpiece passes
through.)
Position Workpiece
z
Positioning Calibration
Press the [SET] button with no workpiece set.
Place the workpiece in the location you wish to position it, and press and hold the [SET] but-
ton for at least 3 seconds. Release the button when "5'6" flashes.
Mount on DIN rail and install on metal sheeting when connecting to
multiple amplifiers or mounting main units together.
• Multiple connections cannot be made to equipment other than the FS-N10
series.
• Turn the power off before connecting multiple sub units.
• Do not touch the expansion connector with your bare hands.
Warning
Note
OP-26751 (a set of two)
Workpiece
Through-beam model setting method
Settings complete
Press [SET] button once with
no workpiece set
Press [SET] button once with
workpiece set
Reflective model setting method
Workpiece
Settings complete
Press [SET] button once with
no workpiece set
Press [SET] button once with
workpiece set
Workpiece
Through-beam model
: with
workpiece set
Press and hold for 3 seconds or more
: without workpiece set
Reflective model
Press and hold for 3 seconds or more
Common to
Through-beam
and
ModelsReflective
Press and hold until
"
UGV
" flashes
Workpiece
While pressing the [SET] button
pass through a workpiece
Settings complete
Common to
Through-beam
and
Models
Reflective
Workpiece

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