Omron Sti F3SJ-E N25 Series User Manual page 62

Wiring/Installation
2.
Alternate the direction of emission between two sets (alternation)
If two sets of F3SJ-E/Bs are installed near each other, reflection from the surfaces may cause mutual
interference.
3.
Keep sufficient distance between the F3SJ-E/Bs so that mutual interference does not occur
Distance between emitter and
receiver (operating range L)
0.2 to 3 m
More than 3 m
When using four or more sets, the installations shown below 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.
F3SJ-E/B
46
User's Manual
Aligned horizontally
Receiver Emitter Emitter
Aligned fore and aft
Receiver
Emitter
Emitter
D
Emitter
Allowable installation distance D
0.26 m
L x tan5° = L x 0.088 (m)
Aligned horizontally
Emitter Receiver Emitter
Aligned fore and aft
Emitter
Emitter
Aligned vertically
Receiver Emitter
Receiver
Emitter
Receiver
Receiver
Emitter
5°
D
Emitter
5°
Receiver
L
Receiver
Receiver
Receiver
Receiver
Emitter
Receiver
Receiver
Aligned vertically
Receiver
Emitter
Receiver
Emitter