turck RU CK40 Series, Инструкция по эксплуатации

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V2.0 | 2021/06
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4.4.3 Retroreflective mode
When used as a retroreflective sensor, the sensor detects the echo of the ultrasonic waves of
the taught reflector. The reflector can be any object with a surface that is as smooth as possible.
The sensor generates a short switching window around the position of the reflector and de-
tects the echo. The sensor switches if the echo is blocked or deflected by another object.
This operating mode is normally more reliable than the diffuse mode and is particularly suitable
for objects that are difficult to detect and in difficult ambient conditions.
Any additional wiring or accessories are not required.
Synchronization with other sensors is not possible in this operating mode.
When used as a retroreflective sensor switching output 2 is switched on. The behavior of
switching output 1 is inverted in relation to switching output 2.
0
1
target
out2
out1
detection range
blind
zone
Fig. 10: Retroreflective mode – behavior of the switching output