Digital Fiber Optic Sensor

FS-V30 series

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Fiber Amplifier, M8 Connector Type, Main Unit, NPN FS-V31C

FS-V31C - Fiber Amplifier, M8 Connector Type, Main Unit, NPN

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)


CAD Data

360°view (3D PDF)

  • CE Marking
  • UL Listing(c/us)





1-output + 1-input
with M8 connector



Main unit/Expansion unit

Main unit

Control output

1 output

Monitor output (1 to 5 V)


External input

1 input



Light source LED

Red, 4-element LED (Wavelength: 640 nm)

Response time

33 µs (HIGH SPEED) /250 µs (FINE) /500 µs (TURBO) /1 ms (SUPER TURBO) /4 ms (ULTRA TURBO) /16 ms (MEGA TURBO)

Output selection

LIGHT-ON/DARK-ON (switch-selectable)

Display indicator

Operation indicator: Red LED/Dual digital monitor: Dual 7-segment display, Preset Value (4-digit green LED indicator) and
Current Value (4-digit red LED indicator) illuminated together. Current Value range: 0 to 64,512; Excess gain: 0P to 999P,
Hold function: Possible to display both peak and bottom hold values, Selectable from 5 variations
Bar LED monitor: Excess gain displayed (85% to 115% in 7 steps), Scaling display


30.3 mm (H) x 9.8 mm (W) x 71.8 mm (D) 1.19" (H) x 0.39" (W) x 2.83" (D)

Detection mode

Light intensity (area detection possible, automatic sensitivity-tracking function provided)

Timer function

OFF-delay timer/ON-delay timer/One-shot timer/ON-delay timer + OFF-delay timer/ON-delay timer + One-shot timer, selectable
Timer duration selectable: 0.1 ms to 9,999 ms, Maximum error against the setting value: ±10% max.

Control output

NPN open-collector 24 V, 100 mA max.*1 (main unit only)/20 mA max. (when the expansion unit(s) is connected), Residual voltage: 1 V max.

External inputy

Input time: 2 ms (ON)/20 ms (OFF) min.*2

Unit expansion

Up to 16 expansion units can be connected (a total of 17 units). Note that the 2-output type should be counted as two units.

Number of interference prevention units

Normal operation



Power voltage

12 to 24 VDC ±10 %, Ripple (P-P) 10 % or less

Power consumption

Normal: 710 mW max. (Using 24 V, 29 mA max., using 12 V, 40 mA max.)/Power saving: 540 mW max. (Using 24 V, 22 mA max., using 12 V, 28 mA max.)*3

Environmental resistance

Ambient light

Incandescent lamp: 20,000 lux max., Sunlight: 30,000 lux max.

Ambient temperature

-10 to +55 °C 14 to 131 °F (No freezing)*4

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

Shock resistance

500 m/s2, 3 times in each of the X, Y, and Z directions

Case material





Approx. 80 g

*1 Total current of two outputs should be less than 100 mA.
*2 Only available on certain models.
*3 When using the HIGH SPEED mode, the power consumption increases by 160 mW (7 mA).
*4 If more than one unit is used together, the ambient temperature varies with the conditions below. Mount the units on the DIN rail with mounting brackets and check that the output current is 20 mA or less.
1 to 2 Units: -10 to +55 °C 14 to 131 °F, 3 to 10 Units: -10 to +50 °C 14 to 122 °F, 11 to 16 Units: -10 to +45 °C 14 to 113 °F

Data Sheet (PDF) Other Models