Datasheet

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. [phone] KRTW 3B… - 07
[e-mail] • www.leuze.com
Pulse stretching option
Switching pulse stretching on or off:
"EasyTune" option - fine tuning of the switching threshold
Following power-on and completed teach event: Green LED illuminates continuously (ready),
Yellow LED on/off continuously (mark detected/not detected).
Increasing the switching threshold:
Reducing the switching threshold:
If the upper or lower end of the adjustment range is reached, the green and yellow LEDs flash at a considerably higher
frequency of 8Hz for the duration of one second.
Press the teach button
longer than 12s.
Only the green LED
flashes.
Release teach button. Change is displayed and accepted automatically after 2s.
Sensor in RUN mode.
After releasing the teach button, the yellow LED displays the new pulse stretching status
for 2s:
yellow LED on: pulse stretching ON
yellow LED off: pulse stretching OFF
Long press of the button =
large force expenditure =
increase switching threshold
Each press of the button with a
duration between 200ms and 2s
increments the switching threshold.
A press of the button is acknowl-
edged by a single, brief flash of the
green LED – the new switching
threshold is now valid.
Short press of the button =
small force expenditure =
reduce switching threshold
Each press of the button with a
duration between 2ms and 200ms
decrements the switching threshold.
A press of the button is acknowl-
edged by a single, brief flash of the
green LED – the new switching
threshold is now valid.
>12s
after 2s
After 2s the yellow LED is back to normal
operation, displaying the state of the switching
output.
Label with marks
Receive signal
1. Teach point on background 2. Teach point on mark
2-point teach
1-point teach
Switching threshold
Increase the
switching threshold
Label with marks
Receive signal
Teach reference value
Switching threshold
Increase the
switching threshold
200ms … 2s
Green LED flashes briefly
once
Label with marks
Receive signal
1. Teach point on background 2. Teach point on mark
2-point teach
1-point teach
Switching threshold
Reduce the
switching threshold
Label with marks
Receive signal
Teach reference value
Switching threshold
Reduce the sitching
threshold
2ms … 200ms
Green LED flashes briefly
once
KRTW 3B White light contrast scanner