Operation
Mode 4 enables proximity notification using 3 distance thresholds. As soon as an object or
a person completely leaves the light beam of the trigger zone(s) (the measured distance
corresponds to the background threshold distance), the switching output is activated. The
LEDs will also signal accordingly.
The NO/NC switching output activation time by default is set to 250 ms, and can be
modified using the for “NO/NC on time” parameter (see
).
By default, mode 4 offers detection capabilities with a switching window, where the active
trigger zone is between Threshold 1 and Threshold 2. By changing the NO/NC active region
setting in sensor parameters (see
), the user can also set multiple trigger zones:
(1) from min. sensor distance (50 cm) to Threshold 1 and, (2) from Threshold 2 to
Background Threshold. Please consult figures below for visual instructions.
The NO/NC switching output will not change state until an object (or a person) has
completely left the light beam of the selected trigger zone.
Figure 17. Mode 4 operation (NO/NC active region = 0)
⇒
Only white patched area (Th1 < distance <
Th2) is triggering the switching output
Figure 18. Mode 4 operation (NO/NC active region = 1)
⇒
Only white patched areas (Th2< distance
OR distance <Th1) are triggering the switching output
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