Omron F3SJ-A P 01TS Series User Manual page 8

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 adjacent sets.
Make sure that the F3SJ is securely mounted and its cables and connectors are properly
secured.
Make sure that foreign material such as water, oil, or dust does not enter the F3SJ or the connec-
tor while the cap is removed.
Do not use the sensor system with mirrors in a retro-reflective configuration as shown
below.Doing so may hinder detection. It is possible to use mirrors to "bend" the detection zone to
a 90-degree angle.
Reflector
Reflector
Position with retro-reflection Position with detection zone bent at 90
Perform an inspection for all F3SJ as described in "Chapter 5 Checklists". When using series
connections, perform inspections for every connected F3SJ.
For wiring
Connect the load between the output and 0V line (PNP output). Connecting the load between the
output and +24V line will result in a dangerous condition because operation is reversed to "ON
when blocked".
Do not short-circuit the output line to the +24V line. Otherwise, the output is always ON. Also, the
0V of the power supply must be grounded so that output does not turn ON due to grounding of
the output line.
Configure the system by using the optimal number of safety outputs that satisfy the requirements
of the necessary safety category.
Do not connect each line of F3SJ to a DC power supply of more than 24VDC+20%. Also, do not
connect to an AC power supply. Failure to do so may result in electric shock.
F3SJ-A
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User's Manual