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Wiring Diagrams

Indicator Display Patterns

Input/Output Circuit

Response Times/Power Cable Length

Wiring using manual reset mode, external device monitoring

 Wiring for auto reset mode

Wiring when external device monitoring function is not used

[Basic System]

Wiring when using muting and external device monitoring functions

 Wiring when external device monitoring function is not required

Input/output circuit

[Muting System]

Indicators

Indicator display patterns for a basic system

Indicator display patterns for a muting system 

(Indicator display different from a basic system are described.)

Indication patterns of the incident light level indicator

 Indication patterns of error mode indicator

 Response times

 Power cable length

A set of square brackets, [ ], indicates 

name of an indicator under muting 
system.

*1 This label comes with the F39-CN6 

key cap for muting.

Affix this label when a keycap is used.

K 1

K 2

S 1

S 2

*1

*1

*2

K 1

K 2

K 3

*2

K 4

Power 

Supply

(Grey) Communication line (+)

(Pink) Communication line (-)

(Grey) 

Communication line (+)

(Pink) 

Communication line (-)

S1        : External test switch

S2        : Interlock/lockout reset switch
K1,K2 : Relay or other device that controls hazardous 

K3,K4 : Load or PLC, etc. (for monitoring)

*1 Use a switch for micro loads 

*2 F3SJ operates even when K3 and K4 are not connected

 (Input specifications: 24V, 1.0mA max.)

parts of the machine

Emitter

Receiver

Shield

Auxiliary output 2 

(Red)

 Interlock selection input 

(White)

24V (Brown)

24V (Brown)

External device 

monitoring input (Red)

Safety output 1 (Black)

Safety output 2 (White)

0V (Blue)

Shield

Auxiliary output 1 (Yellow)

24V (Brown)

External device 

monitoring input (Red)

Safety output 1 (Black)

Safety output 2 (White)

0V (Blue)

Shield

Auxiliary output 1

 (Yellow)

Test input (Black)

Reset input (Yellow)

0V (Blue)

Shield

Auxiliary output 2 

(Red)

 Interlock selection input 

(White)

24V (Brown)

Test input (Black)

Reset input (Yellow)

0V (Blue)

+24V DC

0V

Wiring the emitter’s circuit as shown 
below provides auto reset mode.

S 1

*1

S 3

setting tool

Or

1. Disabling external device monitoring function by the

2. The external device monitoring function is disabled

by connecting auxiliary output 1 and external device
monitoring input as shown below, when auxiliary
output 1 settings have not been changed
(output operation mode is "safety output" and
reverse output mode is "enabled").

*3

*1

K1

K2

K3

* 2

K4

S1

    External test switch(connect to 0V if a switch is not required)

S3

    Lockout reset switch (connect to 24V if a switch is not required)

4

   Load or PLC, etc. (for monitoring)

*1 Use a switch for micro loads. (Input specifications: 24V, 1.0mA max.)
*2 F3SJ can operate even if K4 is not connected.

K1

K2

 Relay or other device that controls hazardous parts of the machine

K3       

 Load or PLC, etc. (for monitoring)

*3 F3SJ can operate even if K3 is not connected.

If K3 is not required, connect auxiliary output 1 to external device
monitoring input only.

Power 

Supply

+24V DC

0V

Power 

Supply

+24V DC

0V

Wiring diagram is the same as that for “Wiring when external device monitoring function is not used” of the basic system.

The numbers in white circles indicate the connector's pin numbers.
The black circles indicate connectors for series connection.
The words in brackets [   ] indicate the signal name for muting system.

K1

K2

S 1

*1

*1 *2

S 2

A1

B1

M1 *4

*1 Use a switch for small loads (input specifications: 24V, 1.0mA max.)
*2 Can work as an interlock reset switch when interlock function is used. (Configuration by the setting tool is required)
*3 F3SJ operates even when K3 is not connected.
*4 Connect a muting lamp to at least any one of external indicator output1, external indicator output2, or auxiliary output 1 .

To connect a muting lamp to the auxiliary output 1, you must use the setting tool to change configuration.

*3 *4

K1

K2

K3

S1

        :

External test switch

S2

        :

Lockout reset switch

A1

       :

Contact by muting sensor A1

B1

       :

Contact by muting sensor B1

K1

K2

Relay or other device that controls

K3

       :

Load or PLC, etc. (for monitoring

M1

      :

Muting lamp

   hazardous parts of the machine

(connect to 24V if a switch is not required)

* 4

(Grey) 

Communication line (+)

(Pink) 

Communication line (-)

24V (Brown)

External device 

monitoring input (Red)

Safety output 1 (Black)

Safety output 2 (White)

0V (Blue)

Shield

Auxiliary output 1

 (Yellow)

Shield

24V (Brown)

Test input (Black)

Reset input (Yellow)

0V (Blue)

Muting

 

input 2 (Red)

Muting input 1 (White)

Power 

Supply

+24V DC

0V

No.

Indicators

Description

1

Incident light level 
indicator

ON

ON/Blinking

ON/Blinking

of the F3SJ.

Indication status of LEVEL-1 to 5 shows the incident light level status   

2

Error mode indicator

LEVEL-1 to 5

ERROR-A to C

Turns ON or blinks only when the F3SJ enters lockout, and the cause 
of the error is indicated by the status of ERROR-A to C indicators.
When F3SJ are series-connected, the error mode indicator lamps turn 
ON or blink according to the details of each error.
Affix the error mode label (included) near the F3SJ to allow for quick 

For details about error mode, refer to ” 

■ 

Indication patterns of error 

mode indicator”.

trouble shooting when errors occur.

ON

Turns ON while the power is ON.

3

Power indicator

POWER

Blinking

Blinks under maintenance status.

ON

Turns ON when F3SJ is in interlock state.

4

Interlock indicator

INTLK

Blinking

Blinks when in lockout.
Turns ON when an input is given to external device monitoring input.

ON

5

External device
monitoring indicator

EDM

6

Test indicator

TEST

Blinking

Blinks when external test is being performed.

ON

Turns ON when safety outputs are OFF.

7

OFF

Blinking

Blinks at following states;
-Lockout state
-One or more beams are blocked during the maintenance status

ON

Turns ON when safety outputs are ON.

Blinks when no beams are blocked during the maintenance status.

8

OFF-state indicator

ON-state indicator

ON

Blinking

9

10

No.

Indicators

ON/Blinking

Description

ON

Turns ON when an input is given to muting input 1.

5

Muting input 1 indicator

MUTE1

Blinking

Turns ON when an input is given to muting input 2.

Blinks under muting/override.

ON

6

Muting input 2 indicator

MUTE2

Blinking

Blinks under muting/override.

9

Muting error indicator

MUTING ERROR

ON

Turns ON during a muting error.

10

Test indicator

TEST

Blinking

Blinks when external test is being performed.

1

2

3

4

5

Incident light level
170% or higher of safety output ON level
From 130 to less than 170% of safety output ON level
From 100 to less than 130% of safety output ON level
From 75 to less than 100% of safety output ON level
From  50 to less than 75% of safety output ON level
Less than 50% of safety output ON level

ON

OFF

Operation is possible with incident light level of 100% or more, but to ensure stability, operate when all incident light level indicators

Refer to F3SJ User’s manual for details.

For series connections, use the calculations below.

When 2 sets are series-connested

 Response time (ON to OFF) :

  Response time of 1st unit + Response time of 2nd unit -1 (ms)

 Response time (OFF to ON) :

  Response time from the above calculation x 4 (ms)
When 3 sets are series-connested

 Response time (ON to OFF) :

  Response time of 1st unit + Response time of 2nd unit

  + Response time of 3rd unit - 5 (ms)

 Response time (OFF to ON) :

  Response time from the above calculation x 5 (ms)
When 4 sets are series-connested

 Response time (ON to OFF) :

  Response time of 1st unit + Response time of 2nd unit 

  + Response time of 3rd unit + Response time of 4th unit - 8 (ms)

 Response time (OFF to ON) :

  Response time from the above calculation x 5 (ms)

Extension of power cable must be the length shown below or shorter:
 In case F3SJ is directly connected to external power supply, or connected to G9SA-300-SC

 When connected to F3SP-B1P

ON

Blinking

OFF

A    B    C

Main c ause of error
Mutual interference or disturbance light.
Power supply voltage of F3SJ is out of rated range. Insufficient current capacity ofpower supply.

Breakage, incorrect wiring of communication line, disconnection of series-connection cable, influence of noise, or other errors.

Function setting value configured by the setting tool is out of valid range.
End cap is not attached. Failure of internal circuit of F3SJ.

The models of the emitter and receiver in a set are different.

Relay is welded or recovery time is too long. Incorrect wiring or breakage of external device monitoring line.
Incorrect wiring or breakage of interlock selection input line or reset input line.

Incorrect wiring of safety output 1 or 2. Failure of safety output circuit.
Incorrect wiring or breakage of series-connection cable.

Incorrect wiring or breakage of reset input line for a muting system.

Auxiliary output 1 is detached or broken.

Incorrect wiring or circuit breakage of external indicator output.

Broken series connection cable.
Incorrect wiring or breakage of communication line.
Effect of noise. F3SJ Failure of internal circuit.

Condition

Single

3 connected

4 connected

Incandescent display lamps are used by auxiliary output 
and/or external indicator output

45m

40m

2 connected

30m

20m

Incandescent display lamps are not used

100m

60m

45m

30m

Condition

Single

2 connected

3 connected

4 connected

Incandescent display lamps are
- used by external indicator output 2

40m

30m

25m

20m

Incandescent display lamps are
- used by external indicator output 1
and/or,
- used by auxiliary output 1

60m

45m

30m

20m

Incandescent display lamps are not used

100m

60m

45m

30m

Emitter

Main ircuit

Indication

Indication

Receiver

MainCircuit 2

2

8

3

4

Receiver

Main Circuit 1

5

5

6

7

1

2

3

1

4

Brown

Black

White

Yellow

Blue

Brown

Red

White

Black

Safety output 2

Safety output 1

Auxiliary output 1

Yellow

Blue

Load

Load

Load

Pink

Grey

Grey

Pink

7

External 
indicator output 2

Interlock selection input

Auxiliary output 2
[ Muting input 2 ]

[ Muting input 1 ]

Reset input

External device monitoring 
input

External 
indicator output 1

8

Red

6

Brown

Blue

Brown

Blue

Shield

Shield

*1 The F3SJ performs normal operation when 

the test input is opened or short-circuited to 0V

 and stops emission. 

when the test input is short-circuited to 24V.

+24V  DC

Test input*1

Communication line (+)

Communication line (-)

0V

Emitter

Emitter

Receiver

Receiver

Model

Number of
beams

Response time
(ON  to OFF )
[ ms ]

Response time
(OFF  to ON)
[ ms ]

10

40

F3SJ-AM2P300

2
3
4
2
3
4
2

10

40

11

44

10

40

11

44

11

44

10

40

3. Power indicator (Green)

4. Interlock indicator (Yellow)

               6. Test indicator (Green)

[Muting input 1 indicator]

[Muting input 2 indicator]

5. External device monitoring indicator (Green)

indicator

LEVEL-5 (Green)
LEVEL-4 (Green)
LEVEL-3 (Orange)

LEVEL-2 (Orange)

LEVEL-1 (Orange)

ERROR-C (Red)

ERROR-B (Red)
ERROR-A (Red)

indicator

7. OFF-state indicator (Red)

8. ON-state indicator (Green)
9. Not used (Green)

10. Not used (Green)
[Test indicator]

[Muting error indicator]

ERROR -C  (Red )

ERROR -B  (Red )

ERROR -A  (Red )

LEVEL-5 (Green)

LEVEL-4 (Green)

LEVEL-3 (Orange)

LEVEL-2 (Orange)

LEVEL-1 (Orange)

1. Incident light level indicator

2. Error mode indicator

Emitter

Receiver

*1

LEVEL

5

4

3

2

1

C

B

A

ERROR

POWER

INTLK

EDM

TEST

LEVEL

5

4

3

2

1

C

B

A

ERROR

OFF

ON

MUTE  1

MUTE  2

MUTING

ERROR

BLANKING

 ( TEST )

E

M

IT

T

E

R

R

E

C

E

IV

E

R

1. Incident light level

2. Error mode

(connect to 0V if a switch is not required)

(connect to 0V if a switch is not required)

MULTI
-BEAM

MULTI
-BEAM

F3SJ-AM3P300
F3SJ-AM4P300
F3SJ-AM2P400
F3SJ-AM3P400
F3SJ-AM4P400
F3SJ-AM2P500

*5

*5

*5 The 2-Wire sensor cannot be used. 

*The F39-A01P

-PAC Dedicated External Indicator Set uses LEDs. Refer to the cable extension lengths for "Incandescent display lamps are not used".

*

*

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