Section 2 Wiring and Mounting
B-22
2-4-4 Adjustment Procedures
[Procedures]
1. Ensure the following points.
• The optical surfaces of the emitter and receiver are clean.
• There should be no light-interrupting objects in the F3SN-B detection zone.
2. Adjust the beams of the emitter.
Adjust the torsion angle of the emitter while monitoring the light intensity level indicators and locate the
emitter in the point where the light intensity level indicators are lit.
3. Adjust the receiver.
Adjust the torsion angle of the receiver while monitoring the light intensity level indicators and locate the
receiver in the point where the light intensity level indicators are lit.
4. Confirm all the light intensity level indicators are lit.
5. When the above adjustments have been completed, tighten all brackets and mounting screws while being
careful not to change the beam adjustment for the light curtain.
Mounting bracket type
Screw designation
and length (mm)
Tightening torque
Mounting bracket
(Top and bottom)
M4×8 1.2
N·m
M4×6 1.2
N·m
Mounting bracket
(Intermediate)
M5×8 2.0
N·m
6. If all of the light intensity level indicators are not lit through the above angle adjustment of the receiver,
check for parallelism between the emitter mounting surface and the receiver mounting surface and also
check if the emitter and receiver are mounted to the same height.
2-5 Check List
A person in charge should check the following check boxes.
Check the following items to make sure the installation is correct.
1. Machine structure does not hinder stop and other safety functions.
2. Intrusion into a hazardous part of the machine is not possible without passing through the F3SN-B
detection zone.
3. Protective structure allows the F3SN-B to detect an operator when he/she works in the hazardous area.
4. The switch to reset the interlock condition has to be installed so that the entire hazardous area is visibly
free and the switch can not be operated from within the hazardous area.
5. The safety distance has been calculated. Calculated distance: S = ( ) mm
6. The actual safety distance is greater than the calculated distance. Actual distance = ( ) mm
7. Reflective surfaces are not installed in prohibited areas.
Check the following items to make sure wiring is correct before turning ON power.
1. The power supply is connected only to the F3SN-B and to the devices related to the electro-sensitive
protective function of the F3SN-B, such as a safety controller and muting sensors, and it has enough rated
current for all the devices.
2. The power supply unit is a 24 VDC unit that conforms to the EMC Directive, Low-voltage Directive, and
output holding specifications.
3. The polarity of the power supply connection is not reversed.
4. The emitter cable is properly connected to the emitter and the receiver cable is properly connected to
the receiver.
5. Double insulation is used between I/O lines and the hazard potential (commercial power supplies, etc.).
6. Outputs are not shorted to the +24V line.
7. Loads are not connected to the +24V line.
8. No lines are connected to a commercial supply line.
9. When two or more units are used, they are installed properly to prevent mutual interference.
Summary of Contents for F3SN-B P Series
Page 10: ...A 3 1 2 4 b b OFF 300ms 1 b 9V Vs 2 4 1 2 5 2 1 mm...
Page 14: ...A 7 2 1 2 1 1 F3SN B F3SN B...
Page 17: ...A 10 2 1 3 D 0 2 3m 0 27m 3m L 2 tan10 L 0 087 m 2 1 4 F3SN B 2 F3SN B L D D L D 10 10...
Page 18: ...A 11 0 2 3m 0 54m 3m L tan10 L 0 18 m L D D 10 10...
Page 21: ...A 14 2 3 2 3 1 F3SN B R36 mm 52mm R 3 6 R 3 6 R 3 6 80mm 80mm...
Page 23: ...A 16 1 2 3 2...
Page 30: ...A 23 1 2 F3SN B 1 3 5 OFF 1 F3SN B P70 4 9 24V OFF 5 6 1 3 3 2 3 F3SN B 4...
Page 31: ...A 24 2 2 8 1 4 1 5 6 5 6 7 3 24V 2 3 1 4 1 2 2 2 0V RS 485 B RS 485 A 7 1 24V 2 2 4 2 NO...
Page 32: ...A 25 OFF OFF OFF ON OFF 25 s 160 200 s OFF OFF ON ON OFF 130 s ON...