Wenglor SG4-I, Operating Instructions Manual

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39
5.4.5 Summary of Blanking Options
Fix Blanking Floating Blanking Auto Floating
Blanking
Reduced
Resolution
Object moves
No Only within the
safety field Inside and outside of
the safety field Inside and out-
side of the safety
field
Removal
of obstruc-
tion from the
safety field
Causes switching of
the safety output Causes switching of the
safety output Does not cause
switching of the
safety output Does not cause
switching of the
safety output
Number of
objects
Unlimited Max. 3 1 Unlimited
Direction of
motion
None Any Motion must start at
the top or the bottom Any
Time limit None None Max. 260 seconds None
Resolution Resolution is the
same as for an un-
blanked light curtain,
because mechani-
cal barricading is
required If the exclusion area is
completed obstructed,
resolution cor responds
to the light curtain’s
default resolution. Other-
wise, the max. number of
floating beams must be
taken into consideration The max. number of
floating beams must
be taken into consid-
eration Corresponds to
selected, elec-
tronically reduced
resolution
Read-out at
display
1×,
6× (interface is
active)
7× (interface is active) 8× (interface is active)
Blanking/Setup LED
blinks = safety field
unobstructed/Blanking/
Setup LED lit = floating
blanking mode 4×,
9× (interface is
active)
Max. number
of obstructed
beams 25 % of total number
of beams (up to 20) 25 % of total number of
beams (up to 20) 25 % of total number of
beams (up to 20) 13 for SG4-14
4 for SG4-30
Configuration
Teach-in, interface interface interface Teach-in, interface
5.5 Cascading (Linking Several Light Curtains)
Neighboring danger zones can be secured by means of cascading. For example, an area can be protected against
side-stepping in a very simple fashion. The fact that both safety fields act upon a single common safety output is an
important advantage which facilitates connection to the machine.
If the Cascading function is combined with the operation mode Fix Blanking, Floating Blanking, Auto Floating Blank-
ing or Reduced Resolution, first configure the respective operation mode, then activate the function.