Installation Considerations; Detection Zone And Approach - Omron F3SG-PGA-A User Manual

Wiring and Installation

5-1. Installation Considerations

5-1-1. Detection Zone and Approach

Install a protective structure so that the hazardous part of a machine can only be reached
by passing through the sensor's detection zone. If access to the hazardous part by reach-
ing over the detection zone of a vertically mounted F3SG-SR/PG cannot be excluded, the
height of the detection zone and the safety distance shall be determined in consideration
of such a risk. Install the sensors so that part of the person is always present in the detec-
tion zone when working in a machine's hazardous zones. If a person is able to step into
the hazardous zone of a machine and remain behind the F3SG-SR/PG's detection zone,
configure the system with Restart Interlock function. Failure to do so may result in serious
injury due to unexpected startup.
Do not use this sensor for machines that cannot be stopped quickly by electrical control. For
example, do not use it for a pressing machine that uses full-rotation clutch. Otherwise, the
machine may not stop before a person reaches the hazardous part, resulting in serious injury.
To use the F3SG-SR in PSDI mode (initiation of cyclic operation by a presence sensing
device), you must configure an appropriate circuit between the F3SG-SR and the
machine. For details about PSDI, refer to OSHA 1910.217, IEC 61496-1, and other
relevant standards and regulations.
Install the 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.
Install the pre-reset switch always in the hazardous zone and where it cannot be activated
from outside the hazardous zone.
Do not use the product in environments where flammable or explosive gases are present.
Doing so may result in explosion.
The F3SG-SR/PG cannot protect a person from an object flying from the hazardous zone.
Install protective cover(s) or fence(s).
F3SG-SR/PG
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User's Manual