117
F3SJ-A
User’s Manual
Chapter4 Installation Conditions
Wiring/Installation
E
Mutual Interference Prevention
Do not use the sensor system with mirrors in a retro-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 adja-
cent sets.
Series Connection
Series connection can prevent mutual interference when multiple sensors are used. Up to 4 sets, 400
beams, can be connected. The emission of series-connected F3SJ is time-divided, so mutual
interference does not occur and safety is ensured.
How to perform series connection p.120
Emitter
Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
Receiver
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