Omron F3SJ-A series User Manual page 71

Connect an emitter to another emitter, and a receiver to another receiver, as shown below.
Secondary
sensor 1
(Emitter)
Primary
sensor
(Emitter)
If caps and series connection cables are not connected properly, the F3SJ enters lockout (when power is turned ON).
Do not series-connect an emitter and receiver.
They will enter lockout state.
Secondary
Secondary
sensor 1 sensor 1
(Receiver) (Emitter )
Primary
Primary
sensor
sensor
(Receiver)
(Receiver)
Wiring/Installation
Do not face different models of emitters and
receivers toward each other. They will enter
lockout state or will be unable to detect objects.
Secondary Primary
sensor 1 sensor 1
(Receiver) (Emitter)
Primary
Secondary
sensor
sensor
(Emitter)
(Emitter)
Secondary
sensor 1
(Receiver)
Primary
sensor
(Receiver)
E
F3SJ-A
53
User's Manual