20 E3X-MDA Super Dual Fiber Sensors
4. Teaching the Threshold Value
(SET Mode)
* There are four methods that can be used for teaching, as described
below. Use the method most suitable for the application.
* An error has occurred if OVER, LO, or NEAR is displayed on the
sub-display. Repeat the operation from the beginning.
4-1. Setting the Threshold at Maximum
Sensitivity
The threshold can be set at the maximum sensitivity. This method is
ideal when using a Through-beam Fiber Unit to detect workpieces
so that detection is not influenced to any great degree by dust and
other environmental factors.
4-2. Teaching a Through-beam Fiber Unit
without a Workpiece
A value about 6% less than the incident light level can be set as the
threshold value. This method is ideal when detecting very small dif-
ferences in light level, such as when detecting very fine workpieces
or transparent workpieces like transparent fibers.
4-3. Teaching a Reflective Fiber Unit without
a Workpiece
A value about 6% greater than the incident light level can be set as
the threshold value. This method is ideal when using a Reflective
Fiber Unit to detect workpieces so that detection is not influenced to
any great degree by dust and other environmental factors.
4-4. Teaching With and Without a Workpiece
Teaching can be performed twice, once with and once without a
workpiece, and the value between the two measured value can be
set as the threshold.
UP DOWN
SET
The threshold value that
was set will flash twice.
Light level Threshold
FULL Threshold
The previous display will
return when the setting
has been com
To Next Page
Loading...
