KEYENCE FS-N10 Series Digital Fiber Sensor Instruction Manual

Quick Start and Cabling

This section provides a quick start guide and cabling information for the FS-N10 Series Digital Fiber Sensor.

Quick Start

Sensitivity Adjustment: Features fine sensitivity adjustment with Up/Down buttons. The sensitivity setting can be adjusted based on light intensity.

Output Switch: Press the [MODE] button to select L-on or D-on mode.

Preset Function: Allows easy configuration with a single press when receiving light.

Power Select Switch: Selects between Standard, MEGA (fixed) modes.

Note: Press and hold the [MODE] button for advanced settings.

Cabling

Note: Refer to page 4 for connecting to external devices other than the FS-N11N.

Wiring Diagram:

Brown: DC12-24V
Black: Load
Blue: OV

Mounting Unit

Mounting on a DIN Rail

Align the claw at the bottom of the main body with the DIN rail. Push the main body in the direction of arrow 1, then slant it in the direction of arrow 2.
To dismount, raise the main body in the direction of arrow 3 while pushing the main body in the direction of arrow 1.

(See Figure 1 for visual representation)

Installation on a Wall (Main Unit Only)

Attach the unit to the optional mounting bracket (OP-73880), mount them together, and secure with two M3 screws as shown in Figure 2.

Connecting Fiber Unit

Open the dust cover in the direction of arrow 1.
Move down the fiber lock lever in the direction of arrow 2.
Insert a fiber unit into the fiber insertion holes to a length of the fiber insertion sign (approximately 14 mm).
Move down the fiber lock lever in the direction of arrow 4.

Note:

If a thin fiber unit is used, an adapter provided with the thin fiber unit is required. Ensure the correct adapter is used for proper detection.
For coaxial reflective type fiber units, connect the single-core fiber to the transmitter and the multiple-core fiber to the receiver.

Fiber Insertion Sign: Approximately 14 mm.

Adapters: Adapter A (OP-26500) for Φ1.3mm, Adapter B (OP-26501) for Φ1.0mm.

Included Accessories: Instruction Manual (1pc), Fiber cutter (1pc).

Hints on Correct Use

Warning: This product is used to detect targets. Do not apply to safety circuits for human protection.
Warning: This product is not explosion-proof. Do not use in places with flammable gas, liquid, or dust.
Warning: This product is a DC power supply type. Do not apply AC power.
Do not wire the amplifier line along with power lines or high-tension lines to prevent malfunction or damage due to noise.
When using a switching regulator, ground the frame ground terminal and ground terminal.
Do not use outdoors or in places where extraneous light directly enters the light-receiving surface.
Individual dispersion of characteristics and fiber unit models may result in variations in maximum sensing distance or displayed values.
If the sensor is used in S-APC mode for a long time, the LED indicators may be heavily loaded. The sensor will automatically switch to ACC mode, displaying "END APC". Continuous use is possible, but replace the sensor if high precision detection is required.

About UL Certification

The FS-N series is UL and C-UL certified and compliant with UL and CSA standards. Applicable standards: UL508 Industrial Control Equipment. UL File No. E301717. CAN/CSA C22.2 No.14-M05 Industrial Control Equipment. UL categories: NRKH, NRKH7. Enclosure Type 1 (based on UL50 standard).

Notes on UL Certification

The power source used with the FS-N series must be UL Listing certified for Class 2 output as stipulated by US National Electric Code (NEC) NFPA70.

Connect the FS-N12 and N14 to the FS-N11 and N13 main units for use.

Connecting Multiple Amplifiers

Up to 16 sub-units can be connected to one main unit.

Warning: Mount on DIN rail and install on metal sheeting when connecting multiple amplifiers or mounting main units together.

Note:

Multiple connections cannot be made to equipment other than the FS-N10 series.
Turn the power off before connecting multiple sub-units.
Do not touch the expansion connector with bare hands.

Remove the protection covers of the main unit and sub unit(s).
Install the amplifiers one by one on the DIN rail.
Engage the two claws of the sub unit with the recesses on the main unit side until a click is heard.
Attach the end units (option: OP-26751) to both ends of the connected amplifiers.
Sandwich the amplifiers between the end units and tighten the screws with a Phillips screwdriver.

(See Figure for visual representation of connecting multiple amplifiers)

Calibration Method

Detecting Even Small Differences

Two-point Calibration

This is the basic calibration method. Press the [SET] button once with the workpiece set, and once without. The sensitivity level is set automatically.

Through-beam model setting method:

Press [SET] with no workpiece set.
Press [SET] with workpiece set.
Settings complete.

Reflective model setting method:

Press [SET] with no workpiece set.
Press [SET] with workpiece set.
Settings complete.

Note: If the sensitivity difference is insufficient, "- - - -" will flash for two seconds after calibration. The set value is stored.

Other Calibration Methods

Increase Resistance to Dust and Dirt

Maximum Sensitivity Setting

In the specified state, press and hold the [SET] button for three seconds until "SEE" flashes. The sensitivity is set slightly higher than the light intensity.

Through-beam model: with workpiece set

Reflective model: without workpiece set

(See Figures for visual representation)

Calibrate with Moving Workpiece

Full Auto Calibration

Press and hold the [SET] button with no workpiece in place while "SEL" is flashing. Pass a workpiece through. Continue pressing [SET] while the workpiece passes.

(See Figures for visual representation)

Position Workpiece

Positioning Calibration

Press the [SET] button with no workpiece set. Place the workpiece in the desired position and press and hold the [SET] button for at least 3 seconds until "SEE" flashes.

(See Figures for visual representation)

Simple, User Friendly Functions

Easily Set up Display

Preset Function

With light ON, press the [PRESET] button. The current value is set to "1000". Pressing [PRESET] changes the setting and current value.

Presetting with preset disabled: Setting changes to "500".

Presetting with preset enabled: Only the current value changes to "100.0".

Note: The preset function cannot be used with the zero shift function. Disable preset to use zero shift.

Set Current Value to "0"

The Zero Shift Function

Mainly used with reflective models. Press [PRESET] and [] buttons simultaneously. The current value is set to "0".

Note: The zero shift and preset functions cannot be used together. Disable zero shift to use preset.

Disable the Preset Function

Press and hold the [PRESET] button to disable the preset function. The ratio of setting and current values is maintained.

Tip: Useful for simple detection (e.g., complete dark detection) and for making displays uniform when using multiple FS-N10 units.

Disable the Zero Shift Function

Press and hold the [PRESET] button to disable the zero shift function.

Tip: Useful for setting the current value to "0" on reflective models when no workpiece is present, allowing easier understanding of light intensity differences.

Use the Saturation Recovery Function

Press the [SET] button while pressing the [MODE] button to enable automatic calibration of light transmission level and light intensity gain.

Note: This function is not suited for transparent workpieces or situations with low light shielding.

Disable Saturation Recovery

Press the [SET] button while pressing the [MODE] button to cancel the function.

Tip: Handy when the fiber unit becomes saturated after installation, allowing for automatic recalibration.

Output Switch

Select between Light-ON (L-on) or Dark-ON (D-on) mode.

While the current value is displayed, press the [MODE] button once.
Use the button to switch between L-on/D-on, then press [MODE] again to complete the setting.

Names of Each Part of the Main Unit

Fiber lock lever
SET button (SET)
Operation status indicators (PST, DTM)
Digital monitor
Manual button (►)
Setting value (green)
Current value (red)
MODE button (MODE)
Preset button (PRESET)
Expansion connector
Expansion protective cover
Power select switch
Dust cover
Cable

(See Figures for visual representation of parts)

Connecting to External Devices

FS-N11N/N12N/N11MN/N13N/N14N

Output Circuit Diagram: Shows connections for sensor main circuit, overcurrent protection, monitor output, and load.

Input Circuit Diagram (FS-N13N/N14N only): Shows connections for sensor main circuit and PLC.

(See diagrams for specific wiring details)

FS-N11P/N12P/N13P/N14P/N13CP/N14CP

Output Circuit Diagram: Shows connections for sensor main circuit, load.

Input Circuit Diagram (FS-N13P/N14P only): Shows connections for sensor main circuit and PLC.

(See diagrams for specific wiring details)

FS-N11CN/N12CN/N11EN/N12EN

Output Circuit Diagram: Shows connections for sensor main circuit, overcurrent protection, load.

Input Circuit Diagram: Shows connections for sensor main circuit and PLC.

(See diagrams for specific wiring details)

FS-N11CP/N12CP

Output Circuit Diagram: Shows connections for sensor main circuit, load.

Input Circuit Diagram: Shows connections for sensor main circuit and PLC.

(See diagrams for specific wiring details)

Socket Cable (Sold Separately)

Available lengths: 2m (OP-73864), 10m (OP-73865).

Pin-to-Pin and wire color table provided.

Initializing the Settings

Initializing Method

Press and hold the [SET] and [PRESET] buttons simultaneously for three seconds.
Use the button to select "r5t", then press the [MODE] button.
Use the button to select "in", then press the [MODE] button.

After initialization, the display returns to the current value.

Initial Settings

Setting: Power mode, Detection mode, Setting value, Target count, Output switch

Initial Value: FINE, Normal, 50, 1 M, L-on

Using a Fiber Cutter and Cautions for Use

Using a Fiber Cutter

Insert the fiber into the cutter hole.
Bring down the blade in a single, swift motion to cut the fiber.

(See Figure for visual representation)

Cautions for Using a Fiber Cutter

Failure to heed these cautions could reduce the detection range.
Use a gray fiber cutter (OP-87098) for cutting fiber units for the FS-N10 series.
Stopping the blade midway can cause a bad cut plane, reducing detection range.
Do not use the same hole twice.

Function Configuration

Basic Setting

Various modes can be selected:

Power mode: High Speed, Fine, Turbo, Super, Ultra, MEGA
Detection mode: Normal, DATUM1, DATUM2, Area, Rising Edge, Falling Edge
Other Settings: APC ON/OFF, Eco ON/OFF, Eco FULL, External input settings, Preset input, Zero shift input, Transmission OFF input, Pause mode, Sleep mode, Light emission power, Analog scaling.

(See diagrams for detailed settings and options)

Two Output

Settings for two-output types include Light intensity detection mode and Limit setting output mode.

Display Settings

Options include Normal display, Reverse display, Sub-display settings (Extension, Bar, Excess gain, Light intensity hold, Excess gain hold, L-on/D-on), and Preset function saturation settings.

Error Displays and Corrective Actions

ErC: Overcurrent in control output. Check load and ensure current is within rated value.
ErE: Failed to write/load internal data. Perform initialization.
End APC: Large load on the light source. Replace sensor if high precision detection is required.

Specifications

Type	Model	Standard output		Monitor output		External input
		Cable	M8 connector*1	Cable	M8 connector*1	Cable	M8 connector*1
NPN	Main unit	FS-N11N	FS-N12N	FS-N11CN	FS-N12CN	FS-N11EN	FS-N12EN	FS-N11MN
	Sub unit (with output cable)	FS-N13N	FS-N14N	FS-N13CN	FS-N14CN	FS-N13CP	FS-N14CP
PNP	Main unit	FS-N11P	FS-N12P	FS-N11CP	FS-N12CP	FS-N11EN	FS-N12EN	FS-N11MN
	Sub unit (with output cable)	FS-N13P	FS-N14P	FS-N13CP	FS-N14CP	FS-N13CP	FS-N14CP
Control output			1 output	1 output	1 output	1 output	1 output	1 output	1 output	2 output	2 output	2 output	2 output
Monitor output (1-5 V)							1 output
External input							1 input	1 input	1 input	1 input	1 input	1 input	1 input
Response time			50 μs (HIGH SPEED)/250 μs (FINE)/500 μs (TURBO)/1 ms (SUPER)/4 ms (ULTRA)/16 ms (MEGA)
Control output			NPN open collector 30 V; 1 output max: 100 mA or less; 2 output total: 100 mA or less (used stand-alone)/20 mA or less (multiple connections); residual voltage 1 V or less. PNP open collector 30 V; 1 output max: 100 mA or less; 2 output total: 100 mA or less (used stand-alone)/20 mA or less (multiple connections); residual voltage 1 V or less.
Monitor output			1 to 5 V voltage output; load resistance 10 kΩ or more; repeat precision ± 0.5% of F.S.; responsiveness 1 ms (FS-N11MN only)
External input			input time 2 ms (ON)/20 ms (OFF) or more
Multiple connections to sub units			Up to 16 units can be connected total, but two-output type is treated as two units.
Number of interference prevention units			0 for HSP; 4 for FINE; 8 for TURBO/SUPER/ULTRA/MEGA (When set to double, the number of interference-prevention units will be doubled.)
Power voltage			12-24 V DC ± 10% ripple (P-P) 10% or less
Rating	NPN		Normal: 900 mW or less (36 mA max. at 24 V, 48 mA max. at 12 V)2; Eco on mode: 800 mW or less (32 mA max. at 24 V, 39 mA max. at 12 V)2; Eco Full mode: 470 mW or less (19 mA max. at 24 V, 23 mA max. at 12 V)
	PNP		Normal: 950 mW or less (39 mA max. at 24 V, 52 mA max. at 12 V)2; Eco on mode: 850 mW or less (35 mA max. at 24 V, 44 mA max. at 12 V)2; Eco Full mode: 520 mW or less (21 mA max. at 24 V, 26 mA max. at 12 V)
	Eco Full mode		1050 mW or less(42 mA max. at 24 V, 56 mA max. at 12 V)2; 950 mW or less (38 mA max. at 24 V, 47 mA max. at 12 V)2; 600 mW or less (24 mA max. at 24 V, 29 mA max. at 12 V)
Environmental	Operating ambient resistance luminance		Incandescent lamp: 20,000 lx or less; Sunlight: 30,000 lx or less
Environmental	Operating ambient temperature		-10 to +55 °C (no freezing)*3
	Operating ambient humidity		35 to 85% RH (no condensation)
	Vibration resistance		10 to 55 Hz Compound amplitude 1.5 mm, 2 hours for each of X,Y,Z axis
	Shock resistance		500 m/s² 3 times for each of X,Y,Z axis
	Case material		Both main unit and housing material: Polycarbonate
	Weight		Approx 75g Approx 45g Approx 22g Approx 22g Approx 22g Approx 22g Approx 75g Approx 80g Approx 70g Approx 22g Approx 22g

Notes:

*1 Use a cable length of 30m or less for M8 connector and e-CON connector types.
*2 Increases 100 mW (4.0 mA) for High Speed mode.
*3 One or two more units connected: -10 to +55°C; 3 to 10 more units connected: -10 to +50°C; 11 to 16 more units connected: -10 to +45°C. When using 2-outputs, one unit is counted as two units. All temperature regulations are for when the unit is mounted on a DIN rail and installed on metal sheeting.

Warranties and Disclaimers

KEYENCE will, at its sole option, refund, repair, or replace any defective Products within 1 year from the date of shipment. Products should not be used internally in humans, for human transportation, as safety devices, or fail-safe systems unless stated otherwise. All express, implied, and statutory warranties, including warranties of merchantability, fitness for a particular purpose, and non-infringement of proprietary rights, are expressly disclaimed. KEYENCE shall not be liable for any direct, indirect, incidental, consequential, or other damages, even if damages result from the use of the products in accordance with any suggestions or information provided by KEYENCE. Some jurisdictions may not allow certain warranty disclaimers or damage limitations.

KEYENCE CORPORATION
1-3-14, Higashi-Nakajima, Higashi-Yodogawa-ku, Osaka, 533-8555, Japan
PHONE: +81-6-6379-2211
www.keyence.com

Contact information for various regional offices (Austria, Hungary, Belgium, Italy, Canada, Japan, China, Korea, Czech Republic, Malaysia, France, Mexico, Germany, Netherlands, Poland, Hong Kong, Singapore, Slovakia, Switzerland, Taiwan, Thailand, UK & Ireland, USA) is provided with phone numbers.

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KEYENCE FS-N10 Series Digital Fiber Sensor Instruction Manual

Quick Start and Cabling

Quick Start

Cabling

Mounting Unit

Mounting on a DIN Rail

Installation on a Wall (Main Unit Only)

Connecting Fiber Unit

Hints on Correct Use

About UL Certification

Notes on UL Certification

Connecting Multiple Amplifiers

Calibration Method

Detecting Even Small Differences

Two-point Calibration

Other Calibration Methods

Increase Resistance to Dust and Dirt

Maximum Sensitivity Setting

Calibrate with Moving Workpiece

Full Auto Calibration

Position Workpiece

Positioning Calibration

Simple, User Friendly Functions

Easily Set up Display

Preset Function

Set Current Value to "0"

The Zero Shift Function

Disable the Preset Function

Disable the Zero Shift Function

Use the Saturation Recovery Function

Disable Saturation Recovery

Output Switch

Names of Each Part of the Main Unit

Connecting to External Devices

FS-N11N/N12N/N11MN/N13N/N14N

FS-N11P/N12P/N13P/N14P/N13CP/N14CP

FS-N11CN/N12CN/N11EN/N12EN

FS-N11CP/N12CP

Socket Cable (Sold Separately)

Initializing the Settings

Initializing Method

Initial Settings

Using a Fiber Cutter and Cautions for Use

Using a Fiber Cutter

Cautions for Using a Fiber Cutter

Function Configuration

Basic Setting

Two Output

Display Settings

Error Displays and Corrective Actions

Specifications

Warranties and Disclaimers

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