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F3SG-R
User’s Manual
Chapter4 Installation Considerations
Wiring/Installation
E
4-1-4. Mutual Interference Prevention
Do not use the sensor system with mirrors in a retro-reflective configuration. Doing so
may hinder detection. It is possible to use mirrors to alter the detection zone to a 90-
degree angle.
When using more than 1 set of F3SG-R in adjacent areas, the emitter of one F3SG-R
may interfere with the receiver of the other, causing the safety functions to stop working
properly. Install and configure them so that mutual interference does not occur.
When two or more F3SG-RA or F3SG-RE systems are mounted in close proximity to each other,
precautions should be taken to avoid one system interfering with another, such as by beam alignment,
back-to-back configuration, physical barrier, Scan Code Selection (for F3SG-RA only) or Operating
Range Selection.
Example
The scan code feature* of the F3SG-RA system allows for placement of systems in close proximity and
in line with each other. The distinctive coding of the beams provide for unique operation of a system
while in view of another system with a different scan code. Two unique codes are available on the
F3SG-RA.
The emitter and receiver units must be set to the same scan code for the receiver to enter the Machine
Run state. The scan code is selectable by the DIP Switch on the emitter and receiver units.
* The scan code feature is not available for the F3SG-RE series.
Emitter
Receiver
Machine 1
Emitter
Receiver
Machine 2
PREFERRED INSTALLATION 1
Code A* Code A*
Emitter
Receiver
Machine 2Machine 1
Emitter
Receiver
PREFERRED INSTALLATION 2
Code A* Code A*
Emitter
Receiver
Machine 2Machine 1
Emitter
Receiver
NOT RECOMMENDED INSTALLATION
Code A*
Code A*
Back-to-back configuration Physical barrier between systems
Machine 1
Emitter
Emitter
Receiver
Machine 2
Receiver
Code A*
Code B*
Scan code setting when two or more systems are mounted
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