Omron F3SN-A - User manual

TYPE 4
PNP Output Type
F3SN-AP Series
Safety Light Curtain
Instruction Manual
Cat.No. SCEE–713
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Introduction
Thank you for purchasing the F3SN-A Series Safety Light Curtain (hereinafter referred to as "the
F3SN-A").
This is the Instruction Manual describing the use of the F3SN-A.
Always heed the following points when using the F3SN-A:
• Read this manual thoroughly and be sure you understand the information provided before
attempting to operate the F3SN-A.
• It is assumed that the F3SN-A will be used properly according to the installation environment,
performance and function of the machine. Qualified personnel should conduct risk assessment on
the machine and determine the suitability of this product before installation.
• Make sure that the personnel operating the F3SN-A are knowledgeable about its’ operation and the
machine on which it is installed.
• Keep the manual in a secure and convenient location and refer to it as necessary.
Regulations and Standards
1. Application of sensor alone can not receive type approval provided by Article 44-2 of the Labour Safety and
Health Law of Japan. It is necessary to apply with system. Therefore, when using the F3SN-A in Japan as
a safety system for pressing or shearing machines provided by article 42 of that law, the system must
receive type approval.
2. (1) The F3SN-A is electro-sensitive protective equipment (ESPE) in accordance with European Union (EU)
Machinery Directive Annex IV, B, Safety Components, Item 1.
(2) The F3SN-A complies with the following regulations and standards:
1. EU regulations
− Machinery Directive: Directive 98/37/EC
− EMC Directive: Directive 89/336/EEC
2. European standard: EN61496-1 (TYPE 4 ESPE), prEN61496-2(TYPE 4 AOPD)
3. International standard: IEC61496-1 (TYPE 4 ESPE), IEC61496-2 (TYPE 4 AOPD)
4. North American standard: UL61496-1 (TYPE 4 ESPE), UL61496-2 (TYPE 4 AOPD) ,UL1998, UL508
CAN/CSA 22.2 No. 14, CAN/CSA 22.2 No. 0.8
5. JIS standard: JIS B 9704-1 (TYPE 4 ESPE), JIS B 9704-2 (TYPE 4 AOPD)
(3) The F3SN-A received the following approvals from the EU accredited body DEMKO A/S:
− EC Type-Examination in accordance with the EU Machinery Directive
TYPE 4 ESPE (EN61496-1), TYPE 4 AOPD (prEN61496-2)
− Certificate of a Competent Body for EMC
− DEMKO Type Approval TYPE 4 ESPE (EN61496-1), TYPE 4 AOPD (prEN61496-2)
(4) The F3SN-A received the following approvals from the Third Party Assessment Body UL:
− Certificate of UL listing for US and Canadian safety standards
Both of which are: TYPE 4 ESPE (UL61496-1), TYPE 4 AOPD (UL61496-2)
(5) The F3SN-A received the following approvals from the BG test and certification body BG-PRÜFZERT:
− BG Test and Certification Mark License
TYPE 4 ESPE (EN61496-1), TYPE 4 AOPD (prEN61496-2)
3. The F3SN-A is designed according to the following standards. To make sure that the final system complies
with the following standards and regulations, you are asked to design and use it as provided by any other
related standards, laws, and regulations.
Consult UL or other standardization bodies if you have any questions.
− European standards EN415-4, prEN691, EN692, prEN693
− Occupational safety and health standards OSHA 29 CFR 1910.212
− Occupational safety and health standards OSHA 29 CFR 1910.217
− American national standards ANSI B11.1~B11.19
− American national standard ANSI/RIA 15.06
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Notice
Give sufficient safety considerations and make enough allowance with regard to ratings and functions
of the system when using the F3SN-A under following conditions:
(1) Conditions or environment not specified in this manual
(2) Applications to devices and facilities requiring special safety precautions, such as; nuclear energy control,
railway, aircraft, vehicles, combustion facility, medical system, space development, large amusement
machines, etc.)
Precaution on Safety
General conventions for safe use
The following conventions are used for precautionary items in this manual in order to ensure safe and
proper use of the F3SN-A. Items listed here are critical for safety and must be heeded at all times.
WARNING Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious
injury.
Indicates prohibited actions.
WARNING
After setting the fixed blanking, check that the F3SN-A detects a test rod at any position in the detection zone through
which a person can reach the hazardous part of the machine. If any positions are found by check above, install protective
structures to prevent intrusion, which the F3SN-A can not detect. Failure to do so may result in serious injury. (Chapter
1-2)
Use of the floating blanking increases the size of the detection capability. To calculate a safety distance, be sure to use the
increased size of the detection capability. Failure to do so causes the machine to fail to stop before an operator reaches
the dangerous area and may result in serious injury. (Chapter 1-2)
Do not use the F3SN-A on machines that cannot be stopped by electrical control in case of an emergency, such as a
pressing machine with full-rotation clutch system. Serious injury may result if the machine does not stop before someone
reaches the hazardous part. (Chapter 2-1)
Proper configuration of the control circuit is required between the F3SN-A and the machine which it is used in PSDI
“presence sensing device initiator” mode. Refer to OSHA1910.217, IEC61496-1, and other related standards and
regulations for more detail on PSDI. (Chapter 2-1)
Install protective structures around the machine so that you must pass through the detection zone of the F3SN-A to reach
a hazardous part of the machine. Install the F3SN-A so that some part of the operator's body remains in the detection zone
at all times when the operator works in a hazardous area. (Chapter 2-1)
The switch to reset the interlock condition must be installed so that the entire hazardous area is visible and free of
personnel, also the switch must not be able to be operated from within the hazardous area. (Chapter 2-1)
Do not use the F3SN-A in flammable or explosive environments. Failure to do this may cause an explosion. (Chapter 2-1)
The F3SN-A does not offer protection to the operator’s body from projectiles exiting the hazardous area. Proper means of
mechanical guarding must be provided to ensure protection from these potentially hazardous projectiles. (Chapter 2-1)
Always maintain the safe calculated distance between the F3SN-A and the hazardous part of a machine to avoid serious injury that
may be caused by reaching the hazard before the machine has stopped. (Chapter 2-1)
Do not install the F3SN-A in a location where it can be affected by wall reflections to avoid detection failure which may
result in serious injury. (Chapter 2-1)
Use the emitter and receiver in proper arrangement to avoid creation of undetectable zones. The set type of the emitter
and receiver must be the same. (Chapter 2-1)
Be sure to securely fasten the F3SN-A to the machine and tighten the cable connector. (Chapter 2-1)
When using multiple sets of F3SN-A, arrange them to prevent mutual interference. (Chapter 2-1)
Do not short-circuit the outputs to the +24V. Doing so will cause the output to be always ON, creating a hazardous
situation. Connect the 0V line of the power supply directly to protective earth to prevent the earth fault. Otherwise the earth
fault causes the outputs to be ON. (Chapter 2-4)
Connect loads between the output and 0V line. (PNP output)
Connecting loads between the output and +24V line will reverse the operation mode and the machine will be ON when it
is light-interrupted. (Chapter 2-4)
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WARNING
Always use the two OSSD outputs to configure the safety system.
Using only one OSSD of the safety system may result in serious injury when there is an output circuit failure. (Chapter 2-4)
Do not connect any of the F3SN-A lines to a DC power supply with more than 24VDC+10% or to an AC power supply to
avoid the danger of electric shock. (Chapter 2-4)
DC power supply units must satisfy all of the conditions below so that the F3SN-A can comply with the applicable
standards IEC 61496-1, and UL 508.
• The power supply voltage must be within specified ratings (24 VDC ± 10 %).
• The power supply is connected only to the F3SN-A and to the devices related to the electro-sensitive protective
function of the F3SN-A, such as a safety controller and muting sensors, and it has enough rated current for all the
devices. The power supply must not be connected to other devices or machines.
• The power supply uses double or reinforced insulation between the primary and secondary circuits
• The power supply automatically resets overcurrent protection characteristics (voltage drop).
• The power supply maintains an output holding time of at least 20 ms.
• The power supply must have output characteristics of Class 2 Circuit of Limited Voltage-Current Circuit as defined in
UL508 (see “2-4-1 Remark”).
• The power supply must conform to regulatory requirements and standards, regarding EMC and electrical equipment
safety, of the country where the F3SN-A is installed and where machinery will be operated. Example: The EMC
Directive (industrial environment) and the Low Voltage Directive in EU.
FG (frame ground terminal) must be connected to PE (protective earth) when using a commercially available switching
regulator.
A qualified person must confirm that installation, inspection and maintenance of the F3SN-A are implemented correctly as
determined by local regulations where the equipment is installed and used.
Do not disassemble, repair or modify the F3SN-A.
Do not use the F3SN-A in a reflective configuration, otherwise detection may fail. (Chapter 2-1)
Reflective panel
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B-iv
Notice
For your safety, always heed the followings:
(1) The procedures of installation, inspection and maintenance in this manual should be read carefully.
(2) Loads must satisfy all the conditions below:
• Is not short-circuited.
• Is not used with current higher than the rating.
(3) All input lines and output lines of the F3SN-A should insulate against hazardous voltage levels (230 VAC,
etc.), not simply against 24 VDC, with double or reinforced insulation to protect against electrical shock.
In case of the combination with the F3SP-B1P, all relay output terminals (13-14, 23-24, 33-34, and
41-42) should insulate against hazardous voltage levels with basic insulation.
(4) Be sure to dispose of the F3SN-A as industrial waste.
Correct Usage
For your safety, always heed the following:
 Installation Environment
• Do not install the F3SN-A in the following environments:
− Areas exposed to intense interference light, such as direct sunlight
− Areas with high-humidity where condensation is likely to occur
− Areas exposed to corrosive gases
− Areas exposed to vibration or shock levels higher than specification provisions.
− Areas where the light curtain may come in direct contact with water.
• Do not use radio equipment, such as cellular phones, walkie-talkies, or transceivers with high
power, near the F3SN-A.
 Wiring and Mounting
• Be sure to turn OFF the power prior to wiring, otherwise the diagnostic function may prevent the
light curtain from operating.
• Use shielded twisted pair cable (cross-sectional area: φ0.3mm2or more) when extending the
communication lines with a cable other than the dedicated cable (F39-JC), and connect the shield
to the 0V line.
• When replacing the cable connector with other connectors (e.g. resin connectors), make sure the
connector is rated IP54 or higher.
• When the distance between the emitter and the receiver is less than 0.2m, there is a possibility of
the malfunction that the F3SN-A goes to the OFF-state momentary. Be sure to install the F3SN-A
within the rated operating range.
• Check the signal name of all terminals for correct wiring.
• Devise a measure to protect against mutual interference when using two or more sets of F3SN-A
beside one another.
• Do not operate the control system until one second or more after turning ON the power of the
F3SN-A.
• Be sure to route the F3SN-A cable separate from high-potential power lines or through an exclusive
conduit.
• The emitter and receiver are to be mounted in parallel and facing one another.
 Do not use any solvents such as paint thinners, benzine or acetone to clean the F3SN-A because it will
dissolve resin and paint.
 The F3SN-A cannot detect transparent or semi-transparent materials.
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PRIOR TO USE
Verify the following items are supplied with each F3SN-A, contact your nearest OMRON
representative or distributor if any item is missing.
• F3SN-AP unit (emitter qty. 1, receiver qty. 1)
• Mounting brackets (top and bottom) qty. 4
M4x8 Screw
Mounting bracket
(Top and bottom)
• Mounting brackets (intermediate)
Supplied with light curtains, which have a mounting interval of 640 mm or more. A maximum of 4
sets is supplied for mounting within 640 mm (2 sets max. for each of emitter and receiver),
depending on the length of the light curtain.
M5x8 Screw
Intermediate bracket(3)
M4x6 Screw
Intermediate bracket(2)
Intermesiate bracket(1)
Inserted in the light curtain
• Test Rod qty. 1
14mm dia. for F3SN-AP14 series
25mm dia. for F3SN-AP25 series
40mm dia. for F3SN-AP40 series
(Test rod is not supplied with the F3SN-AP70 series.)
• Error mode label qty. 1
• Instruction manual (this manual) qty. 1
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B-vi
Contents
Section 1 Description .........................................................................................................................................1
1-1 Features ......................................................................................................................................................1
1-2 Functions.....................................................................................................................................................2
1-2-1 Interlock function .................................................................................................................................2
1-2-2 Test function ........................................................................................................................................2
1-2-3 Auxiliary Output ...................................................................................................................................3
1-2-4 External indicator output......................................................................................................................3
1-2-5 EDM (External device monitoring).......................................................................................................4
1-2-6 Fixed blanking function (Optional).......................................................................................................4
1-2-7 Floating blanking function (Optional)...................................................................................................4
1-2-8 Detection zone ....................................................................................................................................5
1-2-9 Series connection................................................................................................................................5
1-2-10 Indicators...........................................................................................................................................6
1-3 Ratings and Performance ...........................................................................................................................7
1-3-1 Specification ........................................................................................................................................7
1-3-2 Response time...................................................................................................................................10
Section 2 Wiring and Mounting ........................................................................................................................11
2-1 Installation Conditions...............................................................................................................................11
2-1-1 Detection Zone and Intrusion Path....................................................................................................11
2-1-2 Safety Distance .................................................................................................................................12
2-1-3 Distances from Reflective Surfaces ..................................................................................................13
2-1-4 How to Prevent Mutual Interference..................................................................................................14
2-2 Dimensional Drawings ..............................................................................................................................16
2-2-1 Side mounting (e.g.: emitter).............................................................................................................16
2-2-2 Rear mounting (e.g.: emitter) ............................................................................................................19
2-3 Mounting ...................................................................................................................................................22
2-3-1 How to Mount the Unit.......................................................................................................................22
2-3-2 Dimensional Drawing of the Mounting Bracket .................................................................................23
2-4 Wiring........................................................................................................................................................25
2-4-1 Power Supply Units ...........................................................................................................................25
2-4-2 Wiring Diagram..................................................................................................................................26
2-4-3 Wiring Procedures.............................................................................................................................28
2-4-4 Adjustment Procedures .....................................................................................................................30
2-5 Check List .................................................................................................................................................30
Section 3 I/O Circuit .........................................................................................................................................32
Section 4 Application........................................................................................................................................34
Section 5 Maintenance.....................................................................................................................................36
5-1 Daily Inspections .......................................................................................................................................36
5-2 Inspections Every Six Months...................................................................................................................37
Section 6 Troubleshooting ...............................................................................................................................38
6-1 Lockout condition ......................................................................................................................................38
6-2 Other trouble .............................................................................................................................................39
Section 7 Optional Accessory ..........................................................................................................................40
Section 8 Referenced standards......................................................................................................................42
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Section 1 Description
B-1
Section 1 Description
1-1 Features
Available in either 7 m or 10 m operating range:
F3SN-AP14 Series: 7 m
F3SN-AP25 Series: 10 m
F3SN-AP40 Series: 10 m
F3SN-AP70 Series: 10 m
Detection capability:
F3SN-AP14 Series: 14 mm dia.
F3SN-AP25 Series: 25 mm dia.
F3SN-AP40 Series: 40 mm dia.
F3SN-AP70 Series: 70 mm dia.
Protective height (light curtain length): Come in wide selection to suit individual requirements
F3SN-AP14 Series: 106 models in 9 mm increments between 180 mm ~ 1125 mm
F3SN-AP25 Series: 108 models in 15 mm increments between 217 mm ~ 1822 mm
F3SN-AP40 Series: 54 models in 30 mm increments between 217 mm ~ 1807 mm
F3SN-AP70 Series: 27 models in 60 mm increments between 277 mm ~ 1777 mm
[Note]: The following types are available on request. For ordering, consult our sales staff:
F3SN-AP14 Series (except for the F3SN-AP14 which number of beams is odd
number.), F3SN-AP25-02, F3SN-AP40 Series, F3SN-AP70 Series
External size of the light curtain ≅Protective height:
(Except for the F3SN-AP14 series)
Indication of light intensity
Received light intensity is indicated by a 5-bar LED display to aid in beam alignment.
Indication of error mode
Error mode is indicated by a separate 3-bar LED display.
Safety-related functions:
External test function (Emission stop function)
EDM (External device monitoring function)
Interlock function
Fixed blanking function / Floating blanking function (require set by the F39-MC11)
Auxiliary output (Non-safety output)
Allows the light curtain status to be transmitted to a PLC or other device.
Control Unit: F3SP-B1P (Optional accessory)
Allows for quick connection of the light curtain into the safety circuit.
Setting Console: F39-MC11 (Optional accessory)
By connecting this handheld console to the light curtain, various functions of the light curtain can be
accessed.
Degree of protection : IP65 (for light curtain only)
Series connectable models
The series-connection type allows multiple units to be connected together to protect against mutual
interference.
[Nomenclature]

F3SN – AP – – 
Protective height (mm)
P: PNP output type
Detection capability (mm)
Blank: Set of emitter and receiver
L: Emitter
D:Receiver
Connection method
Connection with main system Series connection
Blank Connector type -
01 Connector type Connector type
02 Cable with connector -
03 Cable with connector Connector type
04 Cable with connector Cable with connector
05 Connector type Cable with connector
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Section 1 Description
B-2
1-2 Functions
1-2-1 Interlock function
The auto reset mode and the manual reset mode are wire selectable features of the F3SN-A.
1) Auto reset mode
After the power is turned ON and none of the beams are interrupted the OSSD (Output Signal Switching
Device) outputs will go to their ON-state.
To enable auto reset mode:
Leave the interlock selection input line open or connect it to 0VDC.
Connect the Reset input line to 24VDC. (9VDC to Vs, nominal 24VDC)
Turn ON the power to the F3SN-A.
2) Manual reset mode
There are 3 options for manual reset:
Start/restart interlock
After the power is turned ON, or when at least one beam is interrupted, the light curtain enters the
interlock condition.
Start interlock
Only after power ON, the light curtain enters the interlock condition.
Restart interlock
Only when at least one beam is interrupted, the light curtain enters the interlock condition.
For the factory setting, the start/restart interlock is selected in the manual reset mode. Other options are
selected by the setting console, F39-MC11 (optional). When the light curtain enters the interlock condition, it
keeps the OSSD outputs in the OFF-state. Even if all beams become free, the OSSD outputs will not go to
the ON-state. When none of the beams are interrupted in the detection zone, applying the reset input(*1)
resets the interlock condition and the OSSD outputs go to the ON-state.
*1. Apply a voltage of 24VDC (9VDC to Vs, nominal 24VDC) to the reset input line for 100 ms or more, then
remove power to the reset input line or apply a voltage of 0 VDC.
To enable manual reset mode:
Connect the Interlock selection input line to 24VDC (9VDC to Vs, nominal 24VDC)
Connect the reset input line to 24VDC (9VDC to Vs, nominal 24VDC) via a reset switch (normally open
contact ).
Turn on the power to the light curtain while the reset switch contact remains open.
[Note1]: The switch to reset the interlock condition has to be installed out of the hazardous area.
Before the start/restart interlock is reset, the hazardous area must be visibly free of
personnel.
[Note2]: Prevent short-circuiting of unconnected wires of the light curtain with other wires .
1-2-2 Test function
1) Self-test
After power ON, the F3SN-A performs a complete self-test within 1 second. In addition, it performs a
self-test (within response time) periodically during operation.
2) External test
This function will stop the light-emitting of the light curtain
at any time to confirm the output is turned OFF normally.
Applying a voltage of 24VDC (9V to Vs, nominal 24VDC)
(NOTE1) to the test input line of the emitter makes the emitter
stop emitting.
[Note1]: Applied time should be more than four
times of TOFF.
[Note2]: For TON and TOFF, refer to "1-3 Ratings and Performance."
Test input
OSSD outputs
H
ON
L (open)
OFF
TOFF x 4 max. TON x 2 max.
TON: Response time (OFF to ON) of the OSSD (NOTE 2)
TOFF: Response time (ON to OFF) of the OSSD (NOTE 2)
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Section 1 Description
B-3
3) Error detection and restoration (Lockout condition)
If an error is detected by the self-test the light curtain enters the lockout condition, keeps the OSSD outputs
in their OFF-state and displays the error mode(*1).
Turning the power ON again, or applying the reset input(*2) to the light curtain, resets the lockout condition
(For noise, eliminating the noise automatically resets the lockout condition.)
*1. Refer to “1-2-10 Indicators” for the indicating patterns.
*2. In case of manual reset mode: Apply a voltage of 24VDC (9VDC to Vs, nominal 24VDC) to the reset input
line for 100 ms or more, then remove power to the reset input line or apply a
voltage of 0VDC.
In case of auto reset mode: Open the reset input line or connect it to 0VDC for 100ms or more, then
re-apply a voltage of 24VDC (9VDC to Vs, nominal 24VDC).
1-2-3 Auxiliary Output
The default of this output is the reverse signal of the
safety outputs (Dark-ON output). This output can be
used for monitoring purposes by connecting it to a device
such as a PLC.
The auxiliary output can be selected to give one of the
following output operation modes by the F39-MC11.
• Dark-ON output mode
• Light-ON output mode
• Light diagnosis mode
• Lockout mode
• Outermost-beam monitoring mode
• Specified-beam mode
• Blanking monitoring mode
The diagram on the right shows the timing chart for the Dark-ON output mode. For detailed information, refer
to the instruction manual of the F39-MC11.
1-2-4 External indicator output
This output can be connected to an external indicator to
display one of the operation modes as selected by the
F39-MC11. The default of this output is Light-ON output.
Selectable output modes are as follows.
• Dark-ON output mode
• Light-ON output mode
• Light diagnosis mode
• Lockout mode
The diagram on the right shows the timing chart for the
Light-ON output mode. For detailed information, refer to
the instruction manual for the F39-MC11.
The large indicator can be directly attached to the light curtain
by using the external indicator F39-A01P-(optional), as
shown in the figure on the right, for use with series-connection
types only.
(Non-safety output, available for the series-connection type only)
(Non-safety output)
OSSD outputs
Light reception
ON
Light interrupted
OFF
TOFF TON
TON: Response time (OFF to ON) of the OSSD
TOFF: Response time (ON to OFF) of the OSSD
Auxiliary output ON
OFF
TOFFx 2 max. TOFFx 5 max.
(Dark-ON output mode)
OSSD outputs
Light reception
ON
Light interrupted
OFF
TOFF TON
TON: Response time (OFF to ON) of the OSSD
TOFF: Response time (ON to OFF) of the OSSD
External indicator output ON
OFF
TOFFx 2 max. TOFFx 5 max.
(Light-ON output mode)
External indicator
Lighting part
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Section 1 Description
B-4
1-2-5 EDM (External device monitoring)
This function makes it possible it monitor the state of the NC contacts of the MPCEs(*1), so that a malfunction
of a MPCE, such as a welded contact, can be detected. Connect(*2) the NC contact of the MPCEs to the EDM
input line of the receiver. If the correct logical relationship between the OSSD outputs and the EDM input is
not kept, the light curtain immediately enters the lockout condition and the OSSD outputs will go to their
OFF-state. The light curtain’s normal operation is up to 300ms max.(*3) , this allows for the delay time caused
by the release of the MPCEs. To ensure the correct usage of this function, the MPCEs must be
safety-approved types with forcibly-guided contacts.
[When the EDM is not used]
In the case the EDM input is not used, connect the auxiliary output in the Dark-ON output mode to the EDM
input line, or disable the EDM with the F39-MC11 setting console.
*1. MPCEs (Machine Primary Control Elements) are usually relays or contactors used to control hazardous
movement directly.
*2. Connect the wires such that 24VDC (9VDC to Vs, nominal 24VDC) is applied to the EDM input via the series
connected NC contacts (Refer to 2-4 Wiring).
*3. The value can be changed by the F39-MC11.
1-2-6 Fixed blanking function (Optional)
WARNING
After setting the fixed blanking, check that the F3SN-A detects a test rod at any position in the detection zone through
which a person can reach the hazardous part of the machine. If any positions are found by check above, install
protective structures to prevent intrusion, which the F3SN-A can not detect. Failure to do so may result in serious
injury.
This function is set with the F39-MC11 setting console and disables part of detection zone of the light curtain.
If an object enters the disabled detection zone, the OSSD outputs status will not change. This function is
used when there is a stationary object in the detection zone that needs to be ignored.
Refer to the instruction manual of the F39-MC11 for detailed information.
1-2-7 Floating blanking function (Optional)
WARNING
Use of the floating blanking increases the size of the detection capability. To calculate a safety distance, be sure to use
the increased size of the detection capability. Failure to do so causes the machine to fail to stop before an operator
reaches the dangerous area and may result in serious injury.
This function is set with the F39-MC11 setting console.
During normal operation when floating blanking is disabled, and at least one beam is interrupted the light curtain will
go to the OFF-state. However, using this function prevents the light curtain from going to the OFF-state until
multiple beams (*1, 2, 3) are interrupted.
*1. The number of the floating blanking beams can be selected in the range of 1 to 3 beams.
*2. This function can be set so that the light curtain goes to the OFF-state only if the interrupted beams are
adjacent to each other and the number of interrupted beams is the set number or more.
*3. This function can be set so that the top and bottom beams cannot be set for the function.
The size of the detection capability is increased by using floating blanking as shown in the following table.
The label on the light curtain indicates all 4 kinds of the possible detection capabilities. Obscure inapplicable
sizes of the detection capability with a permanent marker, and leave only an applicable size on the label.
No. of floating blanking beams
No beam 1 beam 2 beams 3 beams
F3SN-AP14 series 14 mm 23 mm 32 mm 41 mm
F3SN-AP25 series 25 mm 40 mm 55 mm 70 mm
F3SN-AP40 series 40 mm 70 mm 100 mm 130 mm
F3SN-AP70 series 70 mm 130 mm 190 mm 250 mm
For detailed information, refer to the instruction manual for F39-MC11.
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Section 1 Description
B-5
1-2-8 Detection zone
[Protective height]
F3SN-AP14 series : Protective height = Total length of the optical cover
Other series : Protective height = Total length of the light curtain
[Beam centre-line mark]
The two lines marked at the centre of the cap indicate the centre of the beam (See the figure shown below).
This position is a reference line for measuring safety distance. Use the line closer to the hazardous area as
a reference line for the safety distance.
Protective height
F3SN-A P14 series Other series
Beam centre-line mark
Safety distance
1 mm
Protective height

Harzardous area
1-2-9 Series connection
Light curtains can be connected in series using the types supplied with the connector for the series
connection as shown in the figure below. Both the stand-alone type and the series connection type can be
used for the light curtains located at the top end. (The F3SN-AP series can connect with the
F3SN-AP series only.)
When any beam of the light curtains connected in series is interrupted, both the OSSD outputs go to the
OFF-state. The LED indicators for each light curtain are individually lit.
• No. of series connected light curtains: Up to 3 sets
• No. of beams: Up to 240 beams
• Length of the series connection cable: 3 m max.
Emitter Receiver
Receiver cable
F39-JC A-D
Receiver
Emitter
Series connection
Emitter cable
F39-JCR2B-L
F39-JC1B-L
or F39-JC3B-L
Series connection
Receiver cable
F39-JCR2B-D
F39-JC1B-D
or F39-JC3B-D

Emitter cable
F39-JC A-L

Series connection
type
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Section 1 Description
B-6
1-2-10 Indicators
[Emitter]
ABC12345
LEVELERROR
PowerInterlockLockoutTest
Test indicator (Orange)
Interlock indicator (Yellow)
Lockout indicator (Red)
Power indicator (Green) Error mode
indicator (Red)
Light intensity level
indicator (Green)
[Receiver]
ABC1 2 3 5LEVELERROR
OFFONLockoutBlanking
Blanking indicator (Green)
ON-state indicator (Green)
Lockout indicator (Red)
OFF-state indicator (Red) Error mode
indicator (Red)
Light intensity level
indicator (Green)
4
Power indicator : Lit when power is supplied
Interlock indicator : Lit during interlock condition
Lockout indicator *1 : Flashing during lockout condition
Test indicator : Lit during external test, Flashing after a lapse of 30000 hours
ON-state indicator : Lit when OSSD outputs are in ON-state
OFF-state indicator : Lit when OSSD outputs are in OFF-state
Blanking indicator *1 : Lit when blanking is set, flashing when the F39-MC11 is connected,
Flashing after a lapse of 30000 hours
Light intensity level indicator : Lit according to light intensity (See the table shown below)
Error mode indicator *1 : Flashing to indicate error mode (Flashing pattern varies depending on
the error condition. See the table shown below)
*1. In the case the fixed blanking is set in “Lockout mode at the light receiving condition”, the lockout
indicator and the blanking indicator flash when the disabled detection zone is not interrupted. In this
case, the error mode indicators do not flash. (Refer to the instruction manual of the F39-MC11 for
detail.)
1 2 3 4 5 Light intensity level
200% and above of ON threshold level
150 to 200% of ON threshold level
100 to 150% of ON threshold level
75 to 100% of ON threshold level
50 to 75% of ON threshold level
Light intensity
level indicator
Lit Not lit
less than 50% of ON threshold level
A B C Cause of error
The Interlock selection input line or the reset input line is not wired
correctly or became open.
Relay contact is welded. Releasing time of the relay takes too long.
The EDM input line is not wired correctly or became open.
Communication line (RS-485) is not wired correctly, became open, or
causes other errors.
One of the OSSD outputs is shorted or is not wired correctly.
Mutual interference. Interference light is received.
Types of the receiver and emitter are not the same. Numbers of the
receiver and emitter connected in series are not the same.
Error mode
indicator
Flashing Not lit
External noise. Internal hardware failure of the receiver or the emitter.
* Attaching the supplied error mode label near the light curtain facilitates diagnosis of the cause of errors.
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Section 1 Description
B-7
1-3 Ratings and Performance
1-3-1 Specification
The 4-digit numbers indicating the protective heights are substituted by  in the type names.
Stand-alone F3SN-AP14
F3SN-AP14-02
F3SN-AP25
F3SN-AP25-02
F3SN-AP40
F3SN-AP40-02
F3SN-AP70
F3SN-AP70-02
Type
Item
Series
connection
F3SN-AP14-01
F3SN-AP14-03
F3SN-AP14-04
F3SN-AP14-05
F3SN-AP25-01
F3SN-AP25-03
F3SN-AP25-04
F3SN-AP25-05
F3SN-AP40-01
F3SN-AP40-03
F3SN-AP40-04
F3SN-AP40-05
F3SN-AP70-01
F3SN-AP70-03
F3SN-AP70-04
F3SN-AP70-05
Detection capability
Non-transparent:
14 mm min. in
diameter
Non-transparent:
25 mm min. in
diameter
Non-transparent:
40 mm min. in
diameter
Non-transparent:
70 mm min. in
diameter
Beam gap (P) 9 mm 15 mm 30mm 60mm
No. of beams (n) 20 to 125 13 to 120 7 to 60 5 to 30
180 to 1125 mm 217 to 1822 mm 217 to 1807 mm 277 to 1777 mm
Protective height(PH) PH = n x P PH = (n-1) x P + 37
Operating range 0.2 to 7.0 m 0.2 to 10.0 m
Response time ON to OFF: 10ms to 15.5ms max. OFF to ON: 40ms to 62ms max. (under stable light
incident condition), See 1-3-2 for detail.
Startup waiting time 1 s max.
Supply voltage (Vs) 24 VDC ±10% (ripple p-p 10% max.)
Emitter Up to 50 beams:140 mA max., 51 to 85 beams:155 mA max.,
86 beams and more:170 mA max.
Current
consumption
(under
no-load
conditions) Receiver Up to 50 beams:100 mA max., 51 to 85 beams:110 mA max.,
86 beams and more:120 mA max.
Light source Infrared LED (870 nm wavelength)
Effective aperture angle
(EAA)
Within ±2.5° for the emitter and receiver at a detection distance of at least 3 m according to
IEC 61496-2
OSSD *1 Two PNP transistor outputs, load current 300 mA max., residual voltage 2 V max.
(except for voltage drop due to cable extension)
Auxiliary output
(Non-safety output)
One PNP transistor output, load current 50 mA max., residual voltage 2 V max.
(except for voltage drop due to cable extension)
External indicator output
(Non-safety output) *2
One PNP transistor output, load current 50 mA max., residual voltage 2 V max.
(except for voltage drop due to cable extension)
Output operation mode
*1
OSSD output : Light-ON
Auxiliary output : Dark-ON (can be changed by the F39-MC11)
External indicator output : Light-ON (can be changed by the F39-MC11) *2
Input voltage
Test input, Interlock selection input, Reset input, EDM input:
ON voltage : 9 to 24 VDC (3 mA max. sink current)
OFF voltage : 0 to 1.5 VDC or open
Emitter
Light intensity level indicator (Green LED x5) : Lit according to light intensity
Error mode indicator (Red LED x3) : Flashing to indicate error mode
Power indicator (Green LED) : Lit when power is supplied
Interlock indicator (Yellow LED) : Lit during interlock condition
Lockout indicator (Red LED) : Flashing during lockout condition
Test indicator (Orange LED) : Lit during external test *3
Indicators
Receiver
Light intensity level indicator (Green LED x5) : Lit according to light intensity
Error mode indicator (Red LED x3) : Flashing to indicate error mode
OFF-state indicator (Red LED) : Lit when OSSDs are in OFF-state
ON-state indicator (Green LED) : Lit when OSSDs are in ON-state
Lockout indicator (Red LED) : Flashing during lockout condition
Blanking indicator (Green LED) : Lit when blanking is set *3
Mutual interference
prevention function *2
• Number of series connected light curtains: Up to 3 sets
• Number of beams: Up to 240 beams
• Length of the series connection cable: 3 m max.
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Section 1 Description
B-8
Stand-alone F3SN-AP14
F3SN-AP14-02
F3SN-AP25
F3SN-AP25-02
F3SN-AP40
F3SN-AP40-02
F3SN-AP70
F3SN-AP70-02
Type
Item
Series
connection
F3SN-AP14-01
F3SN-AP14-03
F3SN-AP14-04
F3SN-AP14-05
F3SN-AP25-01
F3SN-AP25-03
F3SN-AP25-04
F3SN-AP25-05
F3SN-AP40-01
F3SN-AP40-03
F3SN-AP40-04
F3SN-AP40-05
F3SN-AP70-01
F3SN-AP70-03
F3SN-AP70-04
F3SN-AP70-05
Test functions • Self-test (After power ON, and during operation)
• External test (Light emission stop function by test input)
Safety-related functions
• Auto reset / manual reset (Interlock function) *4
• EDM (External device monitoring)
• Fixed blanking *5
• Floating blanking *5
Connection method M12 connector, 8 pins
Protection mode Output short-circuit protection, Reverse polarity protection
Ambient temperature During operation : -10 to 55°C (with no freezing)
During storage : -30 to 70°C
Ambient humidity During operation : 35 to 95% RH (with no condensation)
During storage : 35 to 95% RH
Ambient light intensity
Incandescent lamp : 3,000 Ix max. (light intensity on the receiver surface)
Sunlight : 10,000 Ix max. (light intensity on the receiver surface)
Insulation resistance 20 MΩmin. (at 500 VDC)
Dielectric strength
voltage
1000 VAC 50/60 Hz 1 minute
Degree of protection IP65(IEC60529)
Vibration resistance Normal operation : 10 to 55 Hz, double amplitude 0.7 mm, X, Y and Z directions 20 sweeps
Shock resistance Normal operation : 100 m/s2, X,Y and Z directions 1000 times
Cable *6 UL20276 (flame-resistant:), 8 cores (0.3 mm2x 4pairs), with braided wire shield,
allowable bending radius: R36 mm
Materials
Case : Aluminum
Cap : Zinc die-cast
Optical cover : PMMA (acrylic resin)
Cable : Oil-proof PVC
Weight *Packaged
Calculate with the following equation:
Weight of light curtain with protective height of 180 mm to 738 mm (g)
= (Protective height + 100) x 2 + 1300)
Weight of light curtain with protective height of 747 mm to 1402 mm (g)
= (Protective height + 100) x 2 + 1700)
Weight of light curtain with protective height of 1417 mm to 1822 mm (g)
= (Protective height + 100) x 2 + 2100)
Accessories
Test rod *7, Instruction manual, Mounting brackets (top and bottom),
Mounting brackets (intermediate)*8, Error mode label
Connector cap (Supplied with the –04, –05TS series)*9
Applicable standard IEC61496-1, EN61496-1 Type4 ESPE (Electro-Sensitive Protective Equipment)
IEC61496-2 Type4 AOPD (Active Opto-electronic Protective Devices)
*1. Please note that the operation may differ from conventional ON/OFF switching because of the safety circuit.
*2. Available for the F3SN-AP-01, -03, -04, -05
*3. Flashing after a lapse of 30000 hours as an indicator of preventive maintenance.
*4. For the factory setting, the manual reset mode is set to the start/restart interlock.
Using the F39-MC11 can select the start interlock or the restart interlock.
*5. For the factory setting, the function is not set. It can be enabled with the F39-MC11.
*6. When extending the cable, be sure to use a cable with at least same performance. Do not extend the cable
more than the length below. Be sure to route the F3SN-A cable separated from high-potential power lines or
through an exclusive conduit.
• In the case of no series connection: 100 m max.
• In the case of 2 sensors connected in series: 80 m max.
• In the case of 3 sensors connected in series: 30 m max.
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Section 1 Description
B-9
*7. Test rod is not supplied with the F3SN-AP70 series.
*8. The intermediate mounting bracket is supplied with the following types:
Types which have the total length of the light curtain from 640 mm to 1280 mm: 1 set for each of emitter and
receiver
Types which have the total length of the light curtain over 1280 mm: 2 sets for each of emitter and receiver
*9. When the connector of the series connection is not connected to the sensor, mount the connector cap for
failure prevention of the F3SN-A.
Connector cap Connector of the series
connection
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Section 1 Description
B-10
1-3-2 Response time
The response time of OSSD outputs are as follows:
Protective
height(mm)
No. of beams Response time
(ON to OFF)
Response time
(OFF to ON)
180 to 450 20 to 50 10.0 40
459 to 765 51 to 85 12.5 50
774 to 1080 86 to 120 15.0 60
F3SN-AP14 series
1089 to 1125 121 to 125 15.5 62
Protective
height(mm)
No. of beams Response time
(ON to OFF)
Response time
(OFF to ON)
217 to 772 13 to 50 10.0 40
787 to 1297 51 to 85 12.5 50
F3SN-AP25 series
1312 to 1822 86 to 120 15.0 60
Protective
height(mm)
No. of beams Response time
(ON to OFF)
Response time
(OFF to ON)
217 to 757 7 to 25 10.0 40
787 to 1297 26 to 43 12.5 50
F3SN-AP40 series
1327 to 1807 44 to 60 15.0 60
Protective
height(mm)
No. of beams Response time
(ON to OFF)
Response time
(OFF to ON)
277 to 757 5 to 13 10.0 40
817 to 1297 14 to 22 12.5 50
F3SN-AP70 series
1357 to 1777 23 to 30 15.0 60
 Response time for series connected types is calculated as follows:
For 2 sets:
Response time (ON to OFF): Response time of Light curtain 1 + Response time of Light curtain 2 + 3 ms
Response time (OFF to ON): Response time of Light curtain 1 + Response time of Light curtain 2 + 12 ms
For 3 sets:
Response time (ON to OFF): Response time of Light curtain 1 + Response time of Light curtain 2
+ Response time of Light curtain 3 + 4 ms
Response time (OFF to ON): Response time of Light curtain 1 + Response time of Light curtain 2
+ Response time of Light curtain 3 +16 ms
 Response time of F3SP-B1P is 10 ms, operation time is 100 ms.
[Note]: If the controller is included in the set, calculate safety distance by adding the controller response
time to the F3SN response time.
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Section 2 Wiring and Mounting
B-11
Section 2 Wiring and Mounting
2-1 Installation Conditions
2-1-1 Detection Zone and Intrusion Path
WARNING
Do not use the F3SN-A on machines that cannot be stopped by electrical control in case of an emergency, such as a
pressing machine with full-rotation clutch system. Serious injury may result if the machine does not stop before
someone reaches the hazardous part.
Proper configuration of the control circuit is required between the F3SN-A and the machine which it is used in PSDI
“presence sensing device initiator“ mode. Refer to OSHA1910.217, IEC61496-1, and other related standards and
regulations for more detail on PSDI.
Install protective structures around the machine so that you must pass through the detection zone of the F3SN-A to
reach a hazardous part of the machine. Install the F3SN-A so that some part of the operator's body remains in the
detection zone at all times when the operator works in a hazardous area.
The switch to reset the interlock condition must be installed so that the entire hazardous area is visible and free of
personnel, also the switch must not be able to be operated from within the hazardous area
Do not use the F3SN-A in flammable or explosive environments. Failure to do this may cause an explosion.
The F3SN-A does not offer protection to the operator’s body from projectiles exiting the hazardous area. Proper
means of mechanical guarding must be provided to ensure protection from these potentially hazardous projectiles.
Be sure to securely fasten the F3SN-A to the machine and tighten the cable connector.
Correct Installation
A hazardous part of a machine
can be reached only by passing
through the sensor detection
zone.
Some part of the operator's
body remains in the detection
zone while they are working.
Incorrect Installation
A hazardous part of a machine can
be reached without passing
through the sensor detection zone.
A worker is between the sensor
detection zone and a hazardous
part of a machine.
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Section 2 Wiring and Mounting
B-12
Beam centre-line
Safety distance
Detection zone
Intrusion direction
Hazardous part
2-1-2 Safety Distance
WARNING
Always maintain a safe distance (S) between the F3SN-A and a hazardous part of a machine.
Serious injury may result if the machine does not stop before someone reaches the hazardous part.
The "Safety distance" is the minimum distance that must be maintained between the F3SN-A and a
hazardous part of a machine in order to stop the machine before someone or something reaches it. The
safety distance is calculated based on the following equation when a person moves perpendicular to the
detection zone of a light curtain.
Safety distance (S) = Intrusion speed into the detection zone (K) x Total response time for the machine and
light curtain (T) + Additional distance calculated based on the detection capability of
the light curtain (C) ... (1)
The safety distance varies with national standards and individual machine standards. Be sure to refer to
related standards.
The equation is also different if the direction of intrusion is not perpendicular to the detection zone of the light
curtain.
<Reference> Method for calculating safety distance as provided by European Norm EN999 (for
intrusion perpendicular to the detection zone)
[Detection capability: 40mm or less]
Substitute K = 2,000 mm/s and C = 8 (d - 14 mm) in equation
(1) and calculate as shown below.
S = 2,000 mm/s x (Tm + Ts) + 8 (d - 14 mm) ...(2)
Where: S = Safety distance (mm)
Tm = Machine response time (s) *1
Ts = Light curtain response time (s) *2
d = Detection capability of the light curtain (mm)
e.g.:
Tm = 0.05s, Ts = 0.01s, d =14 mm:
S = 2,000 mm/s x (0.05s + 0.01s) + 8 (14 mm - 14 mm)
= 120 mm
Use S = 100 mm if the result of equation (2) is less than 100 mm.
Recalculate using the following equation with K = 1,600 mm/s if the result is over 500 mm.
S = 1,600 mm/s x (Tm + Ts) + 8 (d - 14 mm) ...(3)
Use S = 500 mm if the result from equation (3) is less than 500 mm.
[Detection capability: over 40mm]
Substitute K = 1,600 mm/s and C = 850 mm in equation (1) and calculate as shown below.
S = 1,600mm/s x (Tm + Ts) + 850 …(4)
Where :S = Safety distance (mm)
Tm = Machine response time (s) *1
Ts = Light curtain response time (s) *2
e.g.:
Tm = 0.05s, Ts = 0.01s:
S = 1,600mm/s x (0.05s + 0.01s) + 850mm
= 946mm
*1. The machine response time refers to the maximum time from the moment the machine receives a stop signal
to the moment the hazardous part of the machine stops. The machine response time should be measured on
actual machines. The machine response time should be measured and confirmed periodically.
*2. The light curtain response time refers to the time required for output to change from ON to OFF.
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Section 2 Wiring and Mounting
B-13
<Reference> Method for calculating the safety distance as provided by ANSI B11.19 (US)
Safety distance (S) = Intrusion speed into the detection zone (K) x Response time (Ts + Tc + Tr + Tbm)
+ Additional distance (Dpf) ...(5)
Where: K = Intrusion speed (Recommended value in OSHA standards is 1,600 mm/s)
ANSI B11.19. does not define Intrusion speed (K). When determining K, consider possible
factors including physical ability of operators.
Ts = Time required for machine to stop (s)
Tr = F3SN-A response time (s) *1
Tc = Maximum response time required for machine control circuit to apply brake (s)
Tbm = Additional time (s)
If the machine is provided with a brake monitor, Tbm = brake monitor setting time - (Ts + Tc). If
not provided with a brake monitor, it is recommended to determine a value more than 20% of
(Ts + Tc) as the additional time.
Dpf = Additional distance. Dpf is calculated as follows based on ANSI standards.
Dpf = 3.4 x (d - 7.0): d is the detection capability of the light curtain (mm).
e.g.:
Where: K = 1,600 mm/s, Ts + Tc = 0.06s, Brake monitor setting time = 0.1s, Tr = 0.01s, d = 14mm,
From equation (5):
Tbm = 0.1-0.06 = 0.04s
Dpf = 3.4 x (14-7.0) = 23.8mm
S = 1,600 x (0.06+0.01+0.04)+23.8 = 199.8mm
*1. The light curtain response time refers to the time required for output to change from ON to OFF.
2-1-3 Distances from Reflective Surfaces
WARNING
Be sure to install the F3SN-A to minimize the effects of reflection from nearby surfaces.
Failure to do so may cause detection to fail and may result in serious injury.
Install the F3SN-A with minimum Distance D shown below from reflective surfaces (highly reflective
surfaces) such as metal walls, floors, ceilings, and work pieces.
L
D
Detection zone
D
Emitter Receiver
Reflecting ceiling
Reflecting floor
L
D
Emitter Receiver
5
Reflecting surface
5
Distance between emitter
and receiver
(Operating range L)
Minimum installation distance D
0.2 to 3m 0.13m
over 3m L/2 x tan5°= L x 0.044 (m)
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