Omron Sti F3SJ-E N25 Series User Manual page 51

• Use sensors with mutual interference prevention (such as retro-reflective E3Z-R series)
• Use laser-type sensors (such as laser-type E3Z-LR series)
• Take distance from a sensor causing the interference
• Displace beams for each other to prevent interference (change installation height or place them
crosswise)
• Install a physical barrier
• Attach interference prevention filter (provided for E3Z series as accessories)
• Attach a slit to reduce light intensity (provided for E3Z series as accessories)
• Lower the sensitivity
• Reduce a distance between a workpiece and a muting sensor to prevent reflected light from a
workpiece
(2) Interference to a muting sensor from F3SJ-B
• Take distance (D) from a sensor causing the interference
• Displace beams for each other to prevent interference (change installation height or place them
crosswise)
• Install a physical barrier
• Arrange sensors in alternation
• Lower the sensitivity
(3) Interference to F3SJ-B from a muting sensor
• Use a red LED type sensor (such as retro-reflective E3Z-R series)
• Use laser-type sensors (such as laser-type E3Z-LR series)
• Take distance (D) from a sensor causing the interference
• Displace beams for each other to prevent interference (change installation height or place them
crosswise)
• Install a physical barrier
• Arrange sensors in alternation
• Attach a slit to reduce light intensity (provided for E3Z series as accessories)
Mutual interference between a muting sensor and F3SJ-B in (2) and (3) above can be prevented by
configuring D satisfying a formula shown below:
•If L = 0.2 to 3 m D = 0.26 m or larger
•If L = 3 m or larger D = L x tan5° = L x 0.088 m or larger
L : Distance between an emitter and a receiver of the F3SJ-B
D : Distance between a muting sensor and a F3SJ-B
System Configuration and Functions
E
F3SJ-E/B
35
User's Manual