Light Curtain
SF2-A
Safety Relay Unit
190 mm
7.480 in
1,950 mm
76.772 in
8 to 96 beam channels
20 mm
0.787 in
beam pitch
4 to 48 beam channels
40 mm
1.575 in
beam pitch
SF2
-
A
447
Space-saving design only 28 mm
1.102 in
width and 19 mm
0.748 in
thickness
With its 28 mm
1.102 in
width and
19 mm
0.748 in
thickness, it is the
smallest in the world* requiring the
least installation space in the industry.
It can be installed in small spaces
incorporated within equipment.
* Data valid as of June 2002 and based on
research conducted by SUNX.
Different types for different needs
Sensors are available with beam
pitches of 20 mm
0.787 in
and 40 mm
1.575 in
. The protective height for
sensors ranges from 190 mm
7.480 in
to 1,950 mm
76.772 in
, for both 20 mm
0.787 in
and 40 mm
1.575 in
beam
pitch sensors. NPN
PNP output types
are also available for all models. The
sensors can be selected from this wide
variety to suit your requirement.
Thickness
19 mm
0.748 in
Width
28 mm
1.102 in
Operating range
Operating range
0.3 to 7m
0.3 to 7m
0.984 to 22.966 ft
0.984 to 22.966 ft
Operating range
0.3 to 7m
0.984 to 22.966 ft
Unaligned beam axes can be seen at a glance
The beam-axis alignment indicators are distributed on the
sensors in four sections. As the indicators of the sections
whose beams are aligned light up in red, the user can easily
verify which beam axes have become aligned. Once all beams
have become aligned, the indicators light up in green. Upon
beginning alignment, as soon as the bottommost or the
topmost beam axis (the standard beam axis) becomes aligned,
the corresponding bottommost or topmost alignment indicator
light begins blinking red. Therefore, beam axes can be easily
aligned by performing the initial beam axis alignment on either
the bottommost or the
topmost beam axis,
then rotating the light
curtain around the axis
of this beam. The
beam-axis alignment
indicators are provided
on both the emitter
and the receiver, so
that you can see at a
glance which beams
are not aligned.
All beam channels are correctly aligned
Beam axes are not correctly aligned
Only the beam axes of the two lower blocks are correctly aligned
All indicators light up in green
Only the bottommost beam axis is correctly aligned
The bottommost indicator blinks red
All indicators light off
The bottom two indicators light up in red
(Beam axes of the two upper blocks are not correctly aligned)
First, ensure that the
bottommost beam
axis is correctly aligned
Rotate the receiver
around the bottommost
beam axis
Blinking
When the upper half of all beam axes are aligned
Conventional unit
SF2-A
After all beam channels received
light, the number of indicators that
light up will increase in accordance
with the incident light level
Even though some beam
channels are aligned, the
user cannot determine which
beam channels are aligned
Cannot determine which
beam axes are not aligned
Even though beam channels are
only partially aligned, the user can
determine which beam channels are
aligned (Beam axes of two upper
blocks are aligned / beam axes of
two lower blocks are not aligned)
Upper two indicators: ON
Lower two indicators: OFF
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Ramco Innovations - 1207 Maple Street, West Des Moines IA USA 50265 - 800-280-6933 - www.ramcoinnovations.com
