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Chapter2 Description of Functions
F3SJ-E/B
User’s Manual
System Configuration and Functions
<Timing chart>
<Reference: Preventing light interference of muting sensor>
When a photoelectric sensor is used as a muting sensor, light interference may cause a muting error of
F3SJ-B.
The cause and measures for light interference are shown as follows:
(1) Interference between muting sensors
Variable Variable name Value Description
T1min
Muting input time limit value
(minimum)
0.1 s
Minimum time difference between muting inputs 1 and 2.
If the time difference between muting inputs 1 and 2 is smaller
than this value, a muting error occurs.
T1max
Muting input time limit value
(maximum)
3 s
Maximum time difference between muting inputs 1 and 2.
If the time difference between muting inputs 1 and 2 is larger than
this value, a muting error occurs.
T2 Muting time limit 60 s
This is the muting function continuation time.
If muting state exceeds this time, the function is canceled.
T3
Maximum muting input pulse
duration
0.1 s
Maximum muting input time with allowable waveform cracks in
muting input 1 and 2.
Muting sensor A2
Muting state
Enabled
Disabled
Safety output
ON
OFF
T2 max.
1Hz Blinking
Muting sensor B1
Unblocked
Blocked
Muting sensor B2
Muting sensor A1
Auxiliary output
Blinking
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
F3SJ-B Unblocked
/Blocked
T3 (0.1 s) max.
T3 (0.1 s) max.
T3 (0.1 s) max.
T3 (0.1 s) max.
T1min to T1max
0.15 s max.
F3SJ-B A2 B2 A1 B 1 A 1 B1 B2 A2 A1 B1 B2 A2
F3SJ-B F3SJ-B
D
Workpiece Workpiece Workpiece
(1) (1)
(1)
(2)
(3)
(1)
Reflected light
Direct light Light from other F3SJ-B
L