23
F3SJ-B
User’s Manual
Ch
apt
e
r
3
In
st
alla
tion Condit
io
n
s
Wiring/Installation
E
Distance from Reflective Surfaces
Install the sensor system so that it is not affected by reflection from a glossy 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
Mutual interference is prevented in up to three sets, using interference light detection and cycle shift
algorithm.
If four or more sets of F3SJ-Bs are installed, arrange them so that mutual interference does not occur.
If two sets are installed near each other, reflection from the surface of the F3SJ-B may cause mutual
interference. When mutual interference occurs, the safety outputs are turned OFF in a moment or the
F3SJ-E/B enters lockout state.
Combining countermeasures 1 to 3 shown below is effective.
1.
Install a physical barrier between two sets
Distance between an emitter and a
receiver (operating range L)
Allowable installation distance D
0.2 to 3 m
0.13 m
More than 3 m
L/2 x tan5° = L x 0.044 (m)
L
D
Detection zone
D
Emitter
Receiver
Reflective ceiling
Reflective floor
L
D
Emitter
Receiver
5°
Reflective surface
5°
Emitter
Receiver
Emitter
Receiver
Summary of Contents for F3SJ-B Series
Page 1: ...F3SJ B N25 01T Series Safety Light Curtain User s Manual Cat No SCHG 735E...
Page 12: ...x Introduction F3SJ B User s Manual...
Page 30: ...16 Chapter 2 Description of Functions F3SJ B User s Manual System Configuration and Functions...
Page 84: ...70 Chapter 3 Wiring F3SJ B User s Manual Wiring Installation...
Page 90: ...76 Chapter 4 Wiring Examples F3SJ B User s Manual Input Output Circuit and Applications...
Page 96: ...82 Chapter 5 Maintenance Checklists F3SJ B User s Manual Checklists...
