Omron F3SN Parts list manual

29. May 2001 No. ST2-015031A
Function Description
Function DescriptionFunction Description
Function Description
S
SS
S
S
SS
Sa
aa
a
a
aa
af
ff
f
f
ff
fe
ee
e
e
ee
et
tt
t
t
tt
ty
yy
y
y
yy
y L
LL
L
L
LL
Li
ii
i
i
ii
ig
gg
g
g
gg
gh
hh
h
h
hh
ht
tt
t
t
tt
t C
CC
C
C
CC
Cu
uu
u
u
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ur
rr
r
r
rr
rt
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t
t
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ta
aa
a
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ai
ii
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in
nn
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nn
n
F3SN
F3SNF3SN
F3SN

F3SN
F3SNF3SN
F3SN
Function Description
Function DescriptionFunction Description
Function Description
No. ST2-015031A -2-
Index
1. Functions ......................................................................................................................................... 3
1.1. External test function ....................................................................................................... 3
1.2. Interlock function .............................................................................................................. 4
1.2.1. Manual reset mode / Auto reset mode.......................................................................... 4
1.2.2. Start interlock................................................................................................................ 5
1.2.3. Restart interlock............................................................................................................ 6
1.3. Blanking function .............................................................................................................. 7
1.3.1. Fixed blanking............................................................................................................... 7
1.3.2. Floating blanking .......................................................................................................... 8
1.4. External device monitoring (EDM) ................................................................................ 11
1.5. Auxiliary output function................................................................................................ 12
1.5.1. Dark-ON output mode ................................................................................................ 12
1.5.2. Light-ON output mode................................................................................................12
1.5.3. Outermost-beam monitoring mode ............................................................................ 13
1.5.4. Lockout mode............................................................................................................... 13
1.5.5. Light diagnosis mode .................................................................................................. 14
1.5.6. Specified-beam mode................................................................................................... 14
1.5.7. Blanking monitoring mode .........................................................................................15
2. Function table................................................................................................................................16
3. Revision history.............................................................................................................................17

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
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N s
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No. ST2-015031A -3-
1
11
1
1
11
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. F
FF
F
F
FF
Fu
uu
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un
nn
n
n
nn
nc
cc
c
c
cc
ct
tt
t
t
tt
ti
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ii
io
oo
o
o
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on
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1
11
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1
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E
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Ex
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te
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rr
r
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rr
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nn
n
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na
aa
a
a
aa
al
ll
l
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ll
l t
tt
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te
ee
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ee
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ss
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st
tt
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t f
ff
f
f
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fu
uu
u
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un
nn
n
n
nn
nc
cc
c
c
cc
ct
tt
t
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tt
ti
ii
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oo
o
o
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on
nn
n
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nn
n
This function stops light emission of an emitter. It is available for checking if the F3SN can
show the correct OSSD (Output Signal Switching Device) outputs state, and so on.
[Directions for use]
Applying a voltage of 24VDC (for PNP type) or 0 V (for NPN type) to the test input line of an
emitter makes the emitter stop emitting.
Time chart (for PNP type in stable light reception state)
Power supply
OSSD outputs
Test input
tOFF : ON ÆOFF response time of OSSD outputs
tON :OFF ÆON response time of OSSD outputs
tOFF x 4 or less tON x 2 or less
ON
ON
24
V

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
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s
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se
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No. ST2-015031A -4-
1
11
1
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11
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.2
22
2
2
22
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. I
II
I
I
II
In
nn
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nt
tt
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te
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er
rr
r
r
rr
rl
ll
l
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lo
oo
o
o
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oc
cc
c
c
cc
ck
kk
k
k
kk
k f
ff
f
f
ff
fu
uu
u
u
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un
nn
n
n
nn
nc
cc
c
c
cc
ct
tt
t
t
tt
ti
ii
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io
oo
o
o
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on
nn
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nn
n
1.2.1. Manual reset mode / Auto reset mode
The manual reset mode activates the interlock function, and the auto reset mode inactivates
it. These modes are wire selectable features of the F3SN.
When the F3SN is set as “Start interlock valid” and/or “Restart interlock valid” and the wir-
ing corresponds to “Manual reset mode”, the interlock function(s) are available. For the fac-
tory setting, both the start interlock and the restart interlock are set valid.
[Direction for wiring]
Interlock selection
input line Reset input line
Manual reset mode 24 V (PNP)
0 V (NPN)
A push button (NO contact) which connects with 24V
(PNP) or 0V (NPN). (Refer to the following diagram)
Auto reset mode 0 V (PNP)
24 V (NPN)
(1) When the lock-out reset is used,
ÆA push button (NC contact) which connects with
24V (PNP) or 0V (NPN). (Refer to the following
diagram)
(2) When the lock-out reset is not used,
Æ24 V (PNP) or 0 V (NPN).
[Wiring example for Manual reset mode] [Wiring example for Auto reset mode with
lock-out reset]
Note.
Note.Note.
Note. Make sure to wire so that either mode is correctly selected. Otherwise the F3SN enters
lock-out condition (LED_A of the emitter blinks).
Reset switch
Reset input line 24V
Reset switch
Reset input line 0V
For PNP type
For NPN type
Reset switch
Reset input line 24V
Reset switch
Reset input line 0V
For PNP type
For NPN type

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
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se
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No. ST2-015031A -5-
1.2.2. Start interlock
This function keeps OSSD outputs in the OFF-state, which means interlock condition, after
power ON. Resetting during no interruption in the detection zone can release the interlock
condition.
[Direction for use]
Activation of the interlock function needs the wiring of “Manual reset mode” for the interlock
selection input line and the reset input line (Refer to 1.2.1).
It is possible to release the interlock by applying 24 V (for PNP type) or 0V (for NPN type) to
the reset input and by making the line open subsequently.
[Application]
When you supply a machine with power at the start of work and you want to keep stopping it
until the daily inspection is completed, this function is available.
Timing chart of the start interlock (PNP type)
Power
Light/Dark
OSSD outputs
Reset inputs
Interlock
indicator
- Restart interlock is assumed invalid.
- tOFF : ON ÆOFF response time of the OSSD outputs
Dark Li
g
ht Dark Li
g
ht
ON OFF
tOFF x 4 or longer
ON
ON
24
V

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
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No. ST2-015031A -6-
1.2.3. Restart interlock
This function keeps OSSD outputs in the OFF-state, which means interlock condition, after a
beam is interrupted. Resetting during no interruption in the detection zone can release the
interlock condition.
[Direction for use]
Activation of the interlock function needs the wiring of “Manual reset mode” for the interlock
selection input line and the reset input line (Refer to 1.2.1).
It is possible to release the interlock by applying 24 V (for PNP type) or 0V (for NPN type) to
the reset input line and by making the line open subsequently.
[Application]
When you want to keep stopping a machine until you confirm its safety and get ready to re-
start it every time a beam is interrupted, this function is available.
Timing chart of the restart interlock (PNP type)
Power
Light/Dark
OSSD outputs
Reset input
Interlock
indicator
- Start interlock is assumed invalid.
- tOFF : ON ÆOFF response time of the OSSD outputs
L D L
OFF ON
tOFF x 4 or longer
DL
OFF ON OFF
D L
ON OFF
ON
ON
24
V

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
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N s
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No. ST2-015031A -7-
1
11
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. B
BB
B
B
BB
Bl
ll
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la
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a
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aa
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nn
n
n
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nk
kk
k
k
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ki
ii
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nn
n
n
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ng
gg
g
g
gg
g f
ff
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f
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nn
n
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nc
cc
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1.3.1. Fixed blanking
Fixed blanking function partly voids detection zone of a light curtain. Entrance of an object
into the invalid detection zone does not change output status. When the fixed blanking func-
tion is valid, the blanking indicator is lit on a receiver.
[Direction for setting]
1) This function is set with the F39-MC11 setting console.
2) The fixed blanking function is made valid.
3) The blanked beams are selected.
(There are two methods of the selection, teaching and manual.)
Note 1: When a blanked beam gets in the light reception state, the blanking function stops
not only for the light reception beam but also for all beams automatically. After the
power is restored, the fixed blanking function gets available with the previous setting.
Note 2: There is no limit for the number of fixed blanked beams.
Note 3: The fixed blanking function is set invalid when the F3SN is shipped.
Note 4: Series connection
The validity of the fixed blanking depends on the setting of the 1CH sensor, which is
the closest to power supply. Regarding the selection of the blanked beams, the setting
is applied to each channel sensor.
Therefore, when you want to select blanked beams only on 2CH sensor and 3CH
sensor, please set as follows:
- 1CH sensor: Fixed blanking function = “Valid”, and
Blanked beam is not selected.
- 2CH, 3CH sensor Fixed blanking function = “Valid”, and
Blanked beam are selected.
Note 5: When the fixed blanking function is valid, the “Outermost beam monitoring mode” of
the auxiliary output is not available.

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
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N s
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No. ST2-015031A -8-
1.3.2. Floating blanking
When more beams are interrupted than the specified number, the OSSD outputs go to the
OFF-state. For example, if two beams are specified, the interruption of three or more beams
is necessary to make OSSD outputs go to OFF-state. Up to three beams can be specified as
floating. This function is used when there is a moving object in the detection zone that needs
to be ignored. When the floating blanking function is valid, the blanking indicator is lit on a
receiver.
There are two modes in the floating blanking function.
(1) Sequential beam mode
The mode ON: When the number of consecutive obstructed beams exceeds the speci-
fied number of floating beams, the OSSD outputs go to the OFF-state.
It means that the object size in the detection zone must be large
enough to obstruct the floating beams completely at the same time to
make the OSSD outputs OFF. Even if there exist plural smaller ob-
jects in the detection zone, the OSSD outputs keeps in ON-state.
The mode OFF: When the total number of obstructed beams, which may not be con-
secutive, exceeds the specified number of floating beams, the OSSD
outputs go to the OFF-state.
- Sequential beam mode= ON ÆOSSD outputs =ON
- Sequential beam mode= OFFÆOSSD outputs =OFF
The sequential beam mode should be set ON when the ignored moving object is only one,
and the mode should be set OFF when the objects are more than one, we recommend.
Obstructed
Light reception
Condition: Three beams are floating

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
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No. ST2-015031A -9-
(2) Outermost beam invalid mode
The mode ON: The outermost beams are excluded from the floating blanking func-
tion. It means that interrupting either of outermost beams surely
makes the OSSD outputs go to the OFF-state.
Outermost beam invalid mode: OFF Outermost beam invalid mode: ON
[Direction for setting]
1) This function is set with the F39-MC11 setting console.
2) The floating blanking function is made valid.
3) The number of floating beams is set as 1 to 3 or Clear.
4) The sequential beam mode is set as ON or OFF.
5) The outermost beam invalid mode is set as ON or OFF.
Note 1: Series connection
The validity of the floating blanking depends on the setting of the 1CH sensor, which
is the closest to power supply. Regarding the number of the floating beams, the se-
quential beam mode, and the outermost beam invalid mode, the settings are applied
to each channel sensor. (All relating to the floating blanking function are set invalid,
OFF, or Clear when the F3SN is shipped.)
Note 2: When an outermost beam is blanked by the fixed blanking function, the outermost
beam invalid mode cannot be available. Even if the mode is set ON, the obstruction of
an outermost beam keeps OSSD outputs in the ON-state.
Note 3: Use of both the fixed blanking and the floating blanking
A blanked beam by the fixed blanking is not counted as an obstructed beam for the
floating blanking even if the beam is actually obstructed.
Outputs ON
Outputs OFF
Outputs OFF
Outputs OFF
Outputs ON Outputs OFF
Condition: Two beams are floating

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
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se
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No. ST2-015031A -10-
(a) In case of 1 beam floating & the sequential beam mode OFF
(Outputs OFF when two or more beams are obstructed in total)
Outputs ON Outputs OFF
Obstructed beam =1 Obstructed beam =2
(b) In case of 1 beam floating & the sequential beam mode ON
(Outputs OFF when consecutive two or more beams are obstructed)
OutputsON OutputsOFF
Consecutive obstructed beam=1 Consecutive obstructed beams=2
Floating blanking function: Setting configuration
Obstructed beam
Light reception beam
Blanked by the fixed blanking an
d
obstructed beam
Floating
blanking
Valid
1 to 3
Invalid
Sequential
beam mode
ON
Outermost beam
invalid mode ON
Outermost beam
invalid mode OFF
Outermost beam
invalid mode ON
Outermost beam
invalid mode OFF
Sequential
beam mode
ON

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
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se
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No. ST2-015031A -11-
1
11
1
1
11
1.
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.4
44
4
4
44
4.
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. E
EE
E
E
EE
Ex
xx
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r
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nn
n
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na
aa
a
a
aa
al
ll
l
l
ll
l d
dd
d
d
dd
de
ee
e
e
ee
ev
vv
v
v
vv
vi
ii
i
i
ii
ic
cc
c
c
cc
ce
ee
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e
ee
e m
mm
m
m
mm
mo
oo
o
o
oo
on
nn
n
n
nn
ni
ii
i
i
ii
it
tt
t
t
tt
to
oo
o
o
oo
or
rr
r
r
rr
ri
ii
i
i
ii
in
nn
n
n
nn
ng
gg
g
g
gg
g (
((
(
(
((
(E
EE
E
E
EE
ED
DD
D
D
DD
DM
MM
M
M
MM
M)
))
)
)
))
)
This function detects a failure of an external device such as a relay or contactor which
controls a hazardous moving part of a machine. The welded contact or the like of the relay
can be detected.
[Direction for use]
Connect the wires such that 24 VDC is applied to the EDM input of a receiver via the series
connected NC contacts of external relays for PNP type. (For NPN type, 0 V is applied.)
If an NC contact does not react within 300 ms (the default time) after the OSSD outputs
change over, the F3SN enters lockout condition.
EDM function: Setting configuration
The determination time (allowed delay time) must be set longer than the response time
and release time of the relay or contactor you will use.
Note 1: When the OSSD outputs change over within the determination time after their
previous changeover, the F3SN does not enter the lock-out condition even if the
logic at the EDM input does not change over.
Note 2: The logic at the EDM input is checked in min. 500 ms. after power ON. The pe-
ripheral circuit must be designed so as to meet this requirement.
Power supply
OSSD outputs
EDM input
EDM function Valid
Invalid
Determination time setting
(100 to 600ms)
Within deter-
mination time
Within deter-
mination time
The changeover o
f
the outputs withi
n
the determinatio
n
time is ignored.
Lock-out
If the changeover
exceeds the deter-
mination time,
the F3SN enters
lock-out.
Timing chart of EDM function (PNP type)
First monitoring afte
r
power ON
500 ms or more
ON
ON
24
V

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
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No. ST2-015031A -12-
1
11
1
1
11
1.
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.5
55
5
5
55
5.
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. A
AA
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AA
Au
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ry
yy
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oo
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ou
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ut
tt
t
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tp
pp
p
p
pp
pu
uu
u
u
uu
ut
tt
t
t
tt
t f
ff
f
f
ff
fu
uu
u
u
uu
un
nn
n
n
nn
nc
cc
c
c
cc
ct
tt
t
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ti
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oo
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nn
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nn
n
This function can be used for monitoring purpose by connecting with a device such as a PLC.
The auxiliary output operation can be selected from the following seven operation modes by
the F39-MC11 setting console.
1.5.1. Dark-ON output mode
When a beam is interrupted, the auxiliary output goes to the ON-state. This state is inverted
from that of the OSSD outputs.
Response time OFF ÆON : (ON ÆOFF response time of OSSD outputs) x 2
ON ÆOFF : (ON ÆOFF response time of OSSD outputs) x 5
Timing chart of the Dark-ON output mode
Power supply
Light/Dark
OSSD outputs
Auxiliary output
tOFF: ON ÆOFF response time of OSSD outputs
1.5.2. Light-ON output mode
When all beams are in the light reception state, the auxiliary output goes to the ON-state.
This state is the same as that of the OSSD outputs.
Response time OFF ÆON : (ON ÆOFF response time of OSSD outputs) x 5
ON ÆOFF : (ON ÆOFF response time of OSSD outputs) x 2
Timing chart of the Light-ON output mode
Power supply
Light/Dark
OSSD outputs
Auxiliary output
tOFF: ON ÆOFF response time of OSSD outputs
ON
tOFF x 5 or less
Li
g
ht Dark Li
g
ht
tOFF x 2 or less tOFF x 5 or less
Li
g
ht Dark Li
g
ht
tOFF x 2 or less
ON
ON
ON
ON
ON

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
ee
e
e
ee
er
rr
r
r
rr
ri
ii
i
i
ii
ie
ee
e
e
ee
es
ss
s
s
ss
s
No. ST2-015031A -13-
1.5.3. Outermost-beam monitoring mode
When only either outermost beam is interrupted, the auxiliary output goes to the ON-state.
An object intruding into the detection zone or leaving out of the zone along beam array can be
detected.
Response time OFF ÆON : (ON ÆOFF response time of OSSD outputs) x 2
ON ÆOFF : (ON ÆOFF response time of OSSD outputs) x 2
Note 1.: When the fixed blanking function is used, the outermost-beam monitoring mode is
not available.
Timing chart of the outermost-beam monitoring mode
Power supply
Light/Dark
OSSD outputs
Auxiliary output
State 1: All beams; Light State 2: No. 1 beam; Dark, The others; Light
State 3: No. 1 and 2 beam; Dark, The others; Light
tOFF: ON ÆOFF response time of OSSD outputs
1.5.4. Lockout mode
When the F3SN enters lockout condition, the auxiliary output goes to the ON-state.
Response time OFF ÆON : Max. 100ms after the F3SN detects a fault.
Timing chart of the Lockout mode
Power supply
Condition
OSSD outputs
Auxiliary outputs
ON
ON
tOFF x 2 or less tOFF x 2 or less
State 1 State 2 State 3State 1
100 ms or less
Normal Lockout Normal
Removing the cause of fault
ON
ON
ON
ON

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
ee
e
e
ee
er
rr
r
r
rr
ri
ii
i
i
ii
ie
ee
e
e
ee
es
ss
s
s
ss
s
No. ST2-015031A -14-
1.5.5. Light diagnosis mode
When unstable light reception state or unstable interruption state lasts for three seconds or
longer, the auxiliary output goes to the ON-state. Monitoring the output by a PLC or the like
makes it possible to detect the deterioration of optical performance caused by dirtiness on the
lens surface, misalignment between the emitter and receiver, deterioration of an LED, and so
on.
The “unstable state” means that the received light is in the range from OFF-threshold – 20 %
to ON-threshold + 20%.
Timing chart of the Light diagnosis mode
Power supply
State
OSSD outputs
Auxiliary outputs
tOFF: ON ÆOFF response time of OSSD outputs
1.5.6. Specified-beam mode
When any of specified beams is interrupted, the auxiliary output goes to the ON-state.
Response time OFF ÆON : (ON ÆOFF response time of OSSD outputs) x 2
ON ÆOFF : (ON ÆOFF response time of OSSD outputs) x 2
Specified-beam mode
Power supply
State of specified beams
Auxiliary output
tOFF: ON ÆOFF response time of OSSD outputs
ON
A
bout 3 sec.
Stable Li
g
ht Unstable Li
g
ht Unstable Dark Stable Dark
tOFF x 2 or less
A
ll ;Li
g
ht
A
t least one beam; Dark
A
ll; Li
g
ht
tOFF x 2 or lesstOFF x 2 or less
ON
ON
ON
ON

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
ee
e
e
ee
er
rr
r
r
rr
ri
ii
i
i
ii
ie
ee
e
e
ee
es
ss
s
s
ss
s
No. ST2-015031A -15-
1.5.7. Blanking monitoring mode
In case that the fixed blanking function is valid, the output goes to the ON-state when a
blanked beam becomes light reception state.
Response time OFF ÆON : (ON ÆOFF response time of OSSD outputs) x 2
ON ÆOFF : (ON ÆOFF response time of OSSD outputs) x 2
Timing chart of the blanking monitoring mode
Power supply
State of blanked beam
Auxiliary output
tOFF: ON ÆOFF response time of OSSD outputs
Dark Li
g
ht Dark
tOFF x 2 or less
ON
ON

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
ee
e
e
ee
er
rr
r
r
rr
ri
ii
i
i
ii
ie
ee
e
e
ee
es
ss
s
s
ss
s
No. ST2-015031A -16-
2
22
2
2
22
2.
..
.
.
..
. F
FF
F
F
FF
Fu
uu
u
u
uu
un
nn
n
n
nn
nc
cc
c
c
cc
ct
tt
t
t
tt
ti
ii
i
i
ii
io
oo
o
o
oo
on
nn
n
n
nn
n t
tt
t
t
tt
ta
aa
a
a
aa
ab
bb
b
b
bb
bl
ll
l
l
ll
le
ee
e
e
ee
e
No. Function name Summary Notes
1 External test This function stops light emission of an
emitter.
2 Start interlock After power ON, the OSSD outputs keep in
the OFF-state even if no beam is inter-
rupted. Resetting makes the OSSD outputs
go to the ON-state when all beams are in
light reception state.
3 Restart interlock Once a beam is interrupted, the OSSD out-
puts keep in the OFF-state even if all beams
become free. Resetting makes the OSSD
outputs go to the ON-state when all beams
are in light reception state.
Wiring for manual
reset mode is
necessary.
4 Fixed blanking This function makes detection capability of
one or more beams invalid. Even if the
specified beams are interrupted, the OSSD
outputs keeps in the OFF-state.
5 Floating blanking When more beams are interrupted than the
specified number, the OSSD outputs go to
the OFF-state. Up to three beams can be
specified as floating.
6 EDM
(External device
monitoring)
This function detects a failure of an external
device such as a relay or contactor. If the
feedback signal from the external device is
not correct, the F3SN enters lockout condi-
tion.
7 Dark-ON output mode
(Auxiliary output)
The ON/OFF-state is inverted from the
OSSD outputs state. This mode is the de-
fault of the auxiliary output.
8 Light-ON output mode
(Auxiliary output)
The ON/OFF-state is the same as the OSSD
outputs state.
9 Outermost-beam
monitoring mode
(Auxiliary output)
When only either outermost beam is inter-
rupted, the output goes to the ON-state.
10 Lockout mode
(Auxiliary output)
When the F3SN enters lockout condition,
the output goes to the ON-state.
11 Light diagnosis mode
(Auxiliary output)
When unstable light reception state or un-
stable interrupted state lasts for three sec-
onds or longer, the output goes to the
ON-state.
12 Specified-beam mode
(Auxiliary output)
When any of specified beams is interrupted,
the output goes to the ON-state.
13 Blanking monitoring
mode
(Auxiliary output)
In case that the fixed blanking function is
valid, the output goes to the ON-state when
a blanked beam becomes light reception
state.

Safety Light Curtain
Safety Light CurtainSafety Light Curtain
Safety Light Curtain
F
FF
F
F
FF
F3
33
3
3
33
3S
SS
S
S
SS
SN
NN
N
N
NN
N s
ss
s
s
ss
se
ee
e
e
ee
er
rr
r
r
rr
ri
ii
i
i
ii
ie
ee
e
e
ee
es
ss
s
s
ss
s
No. ST2-015031A -17-
3
33
3
3
33
3.
..
.
.
..
. R
RR
R
R
RR
Re
ee
e
e
ee
ev
vv
v
v
vv
vi
ii
i
i
ii
is
ss
s
s
ss
si
ii
i
i
ii
io
oo
o
o
oo
on
nn
n
n
nn
n h
hh
h
h
hh
hi
ii
i
i
ii
is
ss
s
s
ss
st
tt
t
t
tt
to
oo
o
o
oo
or
rr
r
r
rr
ry
yy
y
y
yy
y
Sym. Date Contents Pages
A 29/05/01 First edition -
- - - -

Just Fit,
Reliable,
and
Easy.
© OMRON Corporation 2001 All Right Reserved.
Specifications are subject to change without notice.