KEYENCE FS-N10 Series - Manual (Page 38)

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- Digital Fiber Sensor FS-N10 Series User's Manual -
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Setting the Current Received Light Intensity to 0 (Zero Shift)
This function adjusts the current received light intensity display to " 0 ". It is primarily
used with reflective sensor heads. If the received light intensity cannot be set to " 0 "
when a reflective model is installed, this function can be used to set the received light
intensity to "
0 " with no workpiece present. This makes the difference in received light
intensity easier to distinguish.
Enabling the zero shift function
1
When the PST indicator is off, press
the [PRESET] button and
button
simultaneously.
The PST indicator lights in green, and the
received light intensity changes to "
0 ".
Disabling the zero shift function
1
Press and hold the [PRESET] button.
The PST indicator turns off, indicating that the zero shift function has been dis-
abled.
< For reflective models >
Zero Shift Function
Green "PST" lights up
Current vallue is " 0 "
Operating Principle of the Zero Shift Function
In applications for distinguishing colors or
for detecting objects on a background,
the received light intensity will not be "
0 "
even when no workpiece is present.
Applying zero shift input to the lower
level of received light intensity (with
no workpiece present) enhances
the detection display visibility.
0
Received light intensity
Without workpiece
(Background is detected) 200
300
400
450
650
0
Received light intensity
100
200
250
450