Correct Use - Omron F3SH-A Datasheet

Correct Use

Installation
How to prevent mutual interference
Series connection (Up to 3 sets, 240 beams, sensor models ending
in -01, -03, -04, and -05 are required for series connection)
Two or more pairs of the F3SN-A can be connected in series. When
connected in series, the F3SN-A sensors generate beams in a time-
sharing manner. Thus, they prevent mutual interference and ensure
safety.
Correct
Emitter 1 Receiver 1
Cable for
connection
F39-JCR2B or
F39-JCR5B or
F39-JC3B
Emitter 2 Receiver 2
Incorrect
Emitter 1 Receiver 1
Receiver 2 Emitter 2
Do not connect the emitter and
receiver in series, or a lockout
condition will result.
F3SN-A/F3SH-A
Receiver
Emitter
Incorrect
Emitter 1 Receiver 2
Emitter 2 Receiver 1
Do not combine an emitter with a
receiver of a different pair.
This will cause a lockout condition
and detection of objects will be
disabled.
When not connected
When installing two or more pairs of light curtains independently from
each other due to inconvenience of wiring or other reason, take prop-
er measures to prevent mutual interference. If mutual interference
occurs, a lockout condition will result for the F3SN-A/F3SH-A.
• Installation which may cause mutual interference
Incorrect
Emitter 1 Receiver 1 Emitter 2
Incorrect
Emitter 1 Receiver 1
Emitter 2 Receiver 2
• Installation to prevent mutual interference
(1) Install so that the two light curtains emit in the opposite directions
(staggered).
Correct
Receiver 1 Emitter 1 Emitter 2
Correct
Receiver 1 Emitter 1
Emitter 2 Receiver 2
(2) Install a light interrupting wall in between sensors.
Correct
Emitter 1 Receiver 1 Emitter 2
Light interrupting wall
Receiver 2
Incorrect
Emitter 1 Receiver 1
Emitter 2 Receiver 2
Receiver 2
Correct
Emitter 1 Receiver 1
Receiver 2 Emitter 2
Receiver 2
G-21