Omron F3SJ-A series User Manual page 7

Introduction
For installation
Make sure to test the operation of the F3SJ after installation to verify that the F3SJ operates as intended.
Make sure to stop the machine until the test is complete. Unintended function settings may cause a person to
go undetected, resulting in serious injury.
Make sure to install the F3SJ at the safe distance from the hazardous part of the equipment. Otherwise, the
machine may not stop before a person reaches the hazardous part, resulting in serious injury.
Install a protective structure so that the hazardous part of a machine can only be reached by a person that
passes through the sensor's detection zone. Install the sensors so that part of the person is always present in
the detection zone when working in a machine's hazardous zones. If a person is able step into the hazardous
zone of a machine and remain behind the F3SJ's detection zone, configure the system with an interlock
function that prevents the machine from being restarted. Failure to do so may result in serious injury.
Install the interlock reset switch in a location that provides a clear view of the entire hazardous zone and
where it cannot be activated from within the hazardous zone.
The F3SJ cannot protect a person from a projectile exiting the hazardous zone. Install protective cover(s) or
fence(s).
The muting and override functions disable the safety functions of the device. You must ensure safety using
other method when these functions are operating.
Install muting sensors so that they can distinguish between the object that is being allowed to pass through
the detection zone and a person. If the muting function is activated by the detection of a person, it may result
in serious injury.
Muting lamps (external indicators) that indicate the state of the muting and override functions must be
installed where they are clearly visible to workers from all the operating positions.
Use independent 2 input devices for muting inputs.
You must install F3SJ, muting sensor, and physical barrier so that an operator should not enter hazardous
zone.
Install the switch that activates the muting override function in a location that provides a clear view of the
entire hazardous zone and where it cannot be activated from within the hazardous zone. Make sure that
nobody is in the hazardous zone before activating the override function.
Install the sensor system so that it is not affected by the reflective surface of the F3SJ.
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 connector while the
cap is removed.
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User's Manual