## Key Specifications

 

• Manufacturer: Keyence
• Series: FS-V30
• Model: FS-V31P
• Type: Digital Fiber Optic Amplifier, Main Unit, Cable Type
• Output Type: PNP Open-Collector
• Power Supply Voltage: 12 to 24 V DC ±10%
• Light Source: Red LED
• Response Time: Selectable, typically from 33 µs (Mega mode) to 4 ms (Fine mode)
• Display: Dual digital display (shows both real-time light intensity and threshold value)
• Key Features:
  • High Power: Provides a powerful beam for stable detection in dusty environments or at long ranges.
  • Simple Calibration: Features a one-touch button for easy sensitivity setup.
  • Expandable: Can be connected side-by-side with up to 16 expansion amplifier units.

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## Wiring

 

The color code for the integrated cable is printed on the label:

• Brown: +V (Connect to 12 – 24 V DC)
• Blue: 0V (Connect to Ground)
• Black: Output (PNP signal)
• White: External Input (Used for remote teaching or calibration)

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## Functionality

 

The FS-V31P amplifier works by sending a beam of light through a fiber optic cable. The sensing head at the end of the cable (which can be a through-beam or reflective type) detects the presence or absence of an object. The amplifier then compares the amount of light received back to a user-set threshold. If the light level crosses the threshold, the PNP output is activated.

Its dual digital display makes setup intuitive, as users can see the exact light intensity and adjust the trigger point precisely. This makes it ideal for high-speed or small-part detection in applications like packaging, electronics assembly, and automation

data sheet

KEYENCE LV-N11CP Sensor