F3SJ-E/F3SJ-B/F3SJ-A
43
Distance from Reflective Surface
Install the sensor system so that it is not affected by reflection
from a reflective surface. Failure to do so may hinder detection,
resulting in serious injury.
Install the sensor system at distance D or further from highly
reflective surfaces such as metallic walls, floors, ceilings, or
workpieces, as shown below.
Mutual Interference Prevention
Do not use the sensor system with mirrors in a regressive
reflective configuration. Doing so may hinder detection. It is
possible to use mirrors to "bend" the detection zone to a 90-
degree angle.
When using more than 1 set of F3SJ, install them so that mutual
interference does not occur, such as by configuring series
connections or using physical barriers between adjacent sets.
Mutual interference from other F3SJ is prevented in up to 3 sets
without series connection.
For series connection
Series connection can prevent mutual interference when multiple
sensors are used. Up to 3 sets with 192 beam for F3SJ-B series, or
up to 4 sets with 400 beams for F3SJ-A series can be series-
connected. Emission of series-connected F3SJ is time-divided,
ensuring safety without occurring mutual interference.
WARNING
Distance between emitter and
receiver
(operating range L)
Allowable installation
distance D
For 0.2 to 3 m
0.13 m
For 3 m or more
L/2 x tan5° = L x 0.044 (m)
F3SJ-E F3SJ-B F3SJ-A
L
D
Detection zone
D
Emitter
Receiver
Reflective ceiling
Reflective floor
L
D
Emitter
Receiver
5°
Reflective surface
5°
WARNING
F3SJ-E F3SJ-B F3SJ-A
F3SJ-B F3SJ-A
Emitter 1
Receiver 1
Emitter 2
Receiver 2
Emitter 3
Receiver 3