SF4C Safety light curtain
3.8 Muting Function
79
3.8.3 Installation Only for the Exit of the Object
With the handy controller version 2.0 the muting function can be set only for the exit of the object
to be sensed. In this case install the muting sensors only in the dangerous zone; the installation
in the safety zone is not required.
This kind of installation is only applicable if the following conditions are met:
-
The object to be sensed should move to one side.
-
The object to be sensed should move from the dangerous zone to the safety zone.
-
The object to be sensed should pass through the sensing area within 4 seconds
after the muting sensor turns OFF. (Note)
NOTE
The time setting can be done from 0 to 4s in steps of 0.1ms by the handy
controller see page 84.
Installation example only for the exit of the object to be sensed
1
2
3
S (m/s)
Muting sensor B
Dangerous zone
Safety zone
Light curtain
Object to be
sensed
Guard
Guard
Muting sensor A
1. The object to be sensed shall pass
through the muting sensors A to B in
0.03 to 3s.
Distance between A and B: S x 3s
S = Moving speed (m/s) of the object.
2. The object to be sensed shall pass
from muting sensor A to the light
curtain in 4s or less.
Distance between muting sensor A and light curtain (m) B:
S x 4s
Distance between muting sensor A and the light curtain <
Total length of the object (m)
S = Moving speed (m/s) of the object.
3. The object to be sensed shall pass
from the safety light curtain to the end
of the guard zone in 4s or less.
Distance between the light curtain and the end of the guard
zone < S x 4s - 0.2
S = Moving speed (m/s) of the object.
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