OMRON F3SJ Quick Start Guide PDF

Light Curtain Quick Start F3SJ F3SJ PDF Guide F3SJ Manual

This guide will show you how to troubleshoot light curtains connected to NX-Safety I/O.

Troubleshooting F3SJ PDF

1.) Is it PNP?
2.) F3SJ Manual Is it aligned?
3.) Is wiring correct?
4.) F3SJ PDF Continuity?
5.) Power supply separate from servo brakes?
6.) 24V and 0V coming from the same power supply?


PNP and NPN

Safety applications require a PNP light curtain. PNP means there will be no voltage to the load if the output
line has a ground fault.

NPN is not used for safety since the equipment can run out of control if the wires touch the equipment frame.
It would act like a switch.

In the America's market only PNP are sold. NPN light curtains may come into the America's through
Japanese automotive specifications.

How to check:
The receiver (unit with the black cable) has the part number. If the end of the part number has a P, it is PNP.
(Note: N would be NPN)
F3SJ datasheet and Catalog OMRON F3SJ PDF.
OMRON Safety Light Curtain F3SJ-E/F3SJ--B F3SJ Manual Prod Cert PDF,.. F3SJ Manual
OMRON F3SJ-A/F3SJ-AM Prod Cert F3SJ-A/F3SJ-AM PDF.