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Wiring Diagrams

Indicator Display Patterns

Input/Output Circuit

Response Times/Power Cable Length

Wiring using external device monitoring

  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

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.

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 when in lockout.

4

Lockout indicator

LOCKOUT

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

ON

5

External device
monitoring indicator

EDM

Blinking

Blinks when external test is being performed.

6

Test indicator

TEST

ON

Turns ON when safety outputs are OFF.

7

OFF

Blinking

Blinks under lockout.

ON

Turns ON when safety outputs are ON.

8

OFF-state indicator

ON-state indicator

ON

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.

Blinking

Blinks when external test is being performed.

10

Test indicator

TEST

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-connected

 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-connected

 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) :

  Smaller value of response time (ON to OFF) x 5 (ms) or 200ms

F3SJ-A

□□□□

P20-TS

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

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 reset input line or pin 1 (line color:white) of emitter.

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.

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

Condition

Single

3 connected

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

45m

40m

2 connected

30m

Incandescent display lamps are not used

100m

60m

45m

Condition

Single

2 connected

3 connected

Incandescent display lamps are
- used by external indicator output 2

40m

30m

25m

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

60m

45m

30m

Incandescent display lamps are not used

100m

60m

45m

Emitter

Main Circuit

Indication

Indication

Receiver

Main Circuit 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

[ 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

Protective 
height
[ mm ]

Number of
beams

Response time
(ON to  OFF)
[ ms  ]

Response time
(OFF to  ON)
[ ms ]

245
260

440

455

635

650

830

845

1010

1025

1205

1220

1685

1700

2165

2180

2495

16
17

29

30

42

43

55

56

67

68

80

81

112

113

144

145

166

10

40

11

44

12

48

13

52

14

56

15

60

17.5

70

20

80

22.5

90

(Grey) Communication line (+)

(Pink) Communication line (-)

S1        : External test switch

S2        : Lockout reset switch

K1,K2 : Relay or other device that controls  

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

*1  Use a switch for micro loads.

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

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

hazardous parts of the machine

Shield

 (Red)

  

(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)

Test input (

Black

)

Reset input (Yellow)

0V (Blue)

K1

K2

S 1

S 2

*1

*1

*2

K1

K2

K3

Open

+24V DC

Power 

Supply

0V

Emitter

Receiver

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

(Grey) Communication line (+)

(Pink) Communication line (-)

K1,  K2   :  Relay or other device that controls hazardous parts of the machine
K3           :  Load or PLC, etc. (for monitoring)

*1  If K3 is not required, connect auxiliary output 1 to external device

monitoring input only.

 

*1

K1

K2

K3

Disable the external device monitoring function by connecting auxiliary output 1 and the external device  monitoring input as shown in 
the diagram below.

24V (Brown)

External device 

monitoring input (Red)

Safety output 1 (

Black

)

Safety output 2 (White)

0V (Blue)

Shield

Auxiliary output 1

 (Yellow)

Power 
Supply

+24V DC

0V

Receiver

*1  Use a switch for small loads (input specifications: 24V, 1.0mA max.)
*2  The F3SJ operates even when K3 is not connected.
*3  Connect either the emitter or receiver to the muting lamp.

(Pink) Communication line (-)

K1

K2

S 1

*1

S 2

A1

B1

M1 *3

*2

K1

K2

K3

*3

*1

(Grey) 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 input2 (Red)

Muting input1 (White)

Power 
Supply

+24V DC

0V

Emitter

Receiver

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)

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.

3. Power indicator (Green)

4. Lockout 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-A (Red)

ERROR-B (Red)

ERROR-C (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

φ

φ

1. Incident light level

2. Error mode 

 

Emitter

Receiver

*1

5

4

3

2

1

C

B

A

POWER

EDM

LEVEL

5

4

3

2

1

C

B

A

ERROR

OFF

ON

MUTE 1

MUTE 2

MUTING

ERROR

BLANKING
 (TEST )

RECEIVER

20

EMITTER

TEST

LOCKOUT

ERROR

20

LEVEL

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

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

F3SJ-A

□□□□

P25-TS

Protective 
height
[ mm ]

Number of
beams

Response time
(ON to  OFF)
[ ms  ]

Response time
(OFF to  ON)
[ ms ]

340

580

600

840

860

1100

1120

1340

1360

1600

1620

2240

2260

2500

17

29

30

42

43

55

56

67

68

80

81

112

113

125

10

40

11

44

12

48

13

52

14

56

15

60

17.5

70

20

80

260

320

13

16

*4  The 2-Wire sensor cannot be used.

*4

*4

F3SJ-A

□□□□

P14-TS

Protective 
height
[ mm ]

Number of
beams

Response time
(ON to  OFF)
[ ms  ]

Response time
(OFF to  ON)
[ ms ]

245

272

281

389

398

506

515

614

623

731

740

1019

1028

1307

1316

1595

1604

1883

1892

2117

209

234

27.5

110

44
48
52
56
60
70
80
90

11
12
13
14
15
17.5
20
22.5

26

29

30

42

43

55

56

67

68

80

81

112

113

144

145

176

177

208

100

25

*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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