Omron F3SG-PG Series, User Manual, Page: 81 / 473

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F3SG-SR/PG
User’s Manual
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System Operation and Functions
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2-3. Mutual Interference Prevention
Make sure the Responsible Person tests the operation of the F3SG-SR/PG after setting with the
End Cap to verify that the F3SG-SR/PG operates as intended. Make sure to stop the machine until
the test is complete. Unintended settings may cause a person to go undetected, resulting in
serious injury.
When using more than one set of F3SG-SR/PG's in adjacent areas, the emitter of one F3SG-SR/
PG may interfere with the receiver of the other, causing the safety functions to stop working
properly. Install, configure and maintain them so that mutual interference does not occur.
The F3SG-SR/PG has two types of mutual interference prevention methods, the Optical Synchronization and
the Wired Synchronization. When the Optical Synchronization method is used, the F3SG-SR/PG prevents
mutual interference by the Scan Code Selection. Under the wired synchronization, mutual interference is
prevented by wired communications between the emitter and receiver.
2-3-1. Mutual Interference Prevention of F3SG-SR/PG
2-3-1-1. Optical Synchronization

Overview
Synchronization is required between an emitter and a receiver for normal operation of the F3SG-SR/
PG.
The optical synchronization method of F3SG-SR/PG uses a specific beam to realize synchronization.
In case of F3SG-PGA-C, the emitter/receiver has the emitter and the receiver inside and you can select their
synchronization method. If the intelligent tap is not connected to the emitter/receiver, the product operates with optical
synchronization.
The beam is hereinafter called "synchronization beam".
Depending on sensor configuration, the synchronization beam is either of the followings:
• One segment system: End beams (Top or Bottom beam)
• Cascaded system*
1
: End beams (Top or Bottom beam) of the primary sensor
*1. F3SG-PG cannot be cascaded.
By connecting the emitter and receiver with the Intelligent Tap simultaneously, the wired synchronization is configured. If
using the Intelligent Tap and optical synchronization configuration together, do not connect the emitter with the Intelligent
Tap.
If the intelligent tap is connected to emitter/receiver of F3SG-PGA-C, the setting becomes the wired synchronization. To
operate under the optical synchronization, do not connect an intelligent tap to the F3SG-PGA-C.
For an emitter and a receiver to synchronize, at least one synchronization beam must be unblocked.
The synchronization process is performed when:
(1) The power is turned on for an emitter and a receiver
(2) All beams of the primary sensor are blocked and then unblocked
(3) Synchronization is lost due to an error such as noise and ambient light
The sensor can maintain the synchronization in other cases than those described above and it is not necessary to keep
the synchronization beam unblocked all the time.
Use the same F3SG-SR/PG models for the emitter and receiver.
F3SG-SRA

F3SG-PGA-A

F3SG-PGA-C

F3SG-SRB

F3SG-PGA-L
