Section 2 Wiring And Mounting; Installation Conditions; Detection Zone And Intrusion Path - Omron F3SN-A Series Instruction Manual

Section 2 Wiring and Mounting

2-1 Installation Conditions

2-1-1 Detection Zone and Intrusion Path

Do not use the F3SN-A on machines that cannot be stopped by electrical control in case of an emergency, such as a
pressing machine with full-rotation clutch system. Serious injury may result if the machine does not stop before
someone reaches the hazardous part.
Proper configuration of the control circuit is required between the F3SN-A and the machine which it is used in PSDI
"presence sensing device initiator" mode. Refer to OSHA1910.217, IEC61496-1, and other related standards and
regulations for more detail on PSDI.
Install protective structures around the machine so that you must pass through the detection zone of the F3SN-A to
reach a hazardous part of the machine. Install the F3SN-A so that some part of the operator's body remains in the
detection zone at all times when the operator works in a hazardous area.
The switch to reset the interlock condition must be installed so that the entire hazardous area is visible and free of
personnel, also the switch must not be able to be operated from within the hazardous area
Do not use the F3SN-A in flammable or explosive environments. Failure to do this may cause an explosion.
The F3SN-A does not offer protection to the operator's body from projectiles exiting the hazardous area. Proper
means of mechanical guarding must be provided to ensure protection from these potentially hazardous projectiles.
Be sure to securely fasten the F3SN-A to the machine and tighten the cable connector.
Correct Installation
Incorrect Installation
Downloaded from Elcodis.com electronic components distributor
A hazardous part of a machine
can be reached only by passing
through the sensor detection
zone.
A hazardous part of a machine can
be reached without passing
through the sensor detection zone.
Section 2 Wiring and Mounting
WARNING
Some part of the operator's
body remains in the detection
zone while they are working.
A worker is between the sensor
detection zone and a hazardous
part of a machine.
B-11