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LM, light curtain muting
423
02/16 MN05013001Z EN
Muting sensors parameter: 2P
Retro-reflective sensors can be used to initiate muting if they
are suitably arranged. For this the sensor beams must be
arranged so that their crossing point is located behind the
light curtain.
Figure 212:
Light curtain for muting: Parallel muting with 2
muting sensors
Both directions of motion are permissible and therefore any
signal sequence is possible.
The sensors are connected to function block coils LM..A1
and LM..A2.
The synchronization time ST must be set very low as this
muting process requires the parallel triggering of both
muting sensors A1 and A2.
A
A1
A2
h
The sensors and the reflectors must be arranged so that
they remain triggered until the transported material has
left the protected area.
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