LV-N12N Keyence Digital Laser Sensor NPN 2 Output Expansion Unit Fast Shipping

LV-N12N Keyence Multi-Purpose Digital Laser Sensor

The LV-N12N is a compact expansion unit from Keyence. It brings fast response and dual NPN output to your laser sensing setup. It fits tight panels and works with the LV series. This unit suits high-speed lines that need stable switching.

Product Highlights

• Two control outputs for flexible logic.
• Fast response down to 80 µs.
• Small body at H 32.6 mm × W 9.8 mm × L 78.7 mm.
• Light weight at about 65 g.
• Eco modes cut power use.
• Expansion unit joins up to 17 units.

Technical Data Tree

• Brand
  • Keyence
• Model
  • LV-N12N
• Product Type
  • Multi-Purpose Digital Laser Sensor
• Unit Role
  • Expansion unit
• Output
  • NPN
  • 2 control outputs
  • 1 external input
  • No monitor output
• Output Selection
  • LIGHT-ON / DARK-ON, switch-selectable
• Timer Function
  • OFF, OFF-delay, ON-delay, One-shot
  • 1 ms to 9,999 ms
  • Error ±10% max.
• Control Output Rating
  • NPN open collector 30 V
  • Residual voltage 1 V or less at 10 mA or less
  • Residual voltage 2 V or less at 10 to 100 mA
  • Stand-alone: 1 output max 100 mA, 2 outputs total 100 mA
  • Multiple connections: 1 output max 20 mA
• Response Time
  • HIGH SPEED: 80 µs
  • FINE: 250 µs
  • TURBO: 500 µs
  • SUPER: 1 ms
  • ULTRA: 4 ms
  • MEGA: 16 ms
• External Input
  • ON time 2 ms or more
  • OFF time 20 ms or more
• Interference Prevention
  • Not LV-S31: 0 at HIGH SPEED, 2 at FINE/TURBO/SUPER, 4 at ULTRA/MEGA
  • With LV-S31: 2 at FINE, 4 at TURBO/SUPER/ULTRA/MEGA
• Case Size
  • H 32.6 mm × W 9.8 mm × L 78.7 mm
• Unit Expansion
  • Up to 17 units total
  • Two-output type counts as two units
• Protection Circuit
  • Reverse polarity protection
  • Over-current protection
  • Surge absorber
• Power
  • 24 VDC, operating 10 to 30 VDC with ripple
  • Ripple P-P 10% or less
  • Class 2 or LPS
• Power Consumption
  • Normal: 830 mW or less
  • Eco on: 710 mW or less
  • Eco Full: 550 mW or less
• Environmental Resistance
  • Ambient temperature: -20 to +55°C, no freezing
  • Relative humidity: 35 to 85% RH, no condensation
  • Vibration: 10 to 55 Hz, 1.5 mm, 2 hours each axis
  • Shock: 500 m/s², 3 times each axis
• Material
  • Cable: PVC
  • Case and cover: Polycarbonate
• Weight
  • Approx. 65 g

Core Specs at a Glance

• Measuring range. Depends on the paired LV series sensor head.
• Frequency response. Up to 80 µs for fast lines.
• Sensitivity. Stable NPN switching with low residual voltage.
• Linearity. Steady output across the working span.
• Resolution. Timer steps from 1 ms to 9,999 ms.
• Temperature range. Runs from -20 to +55°C.
• Environmental resistance. Handles humidity, vibration, and shock.
• Anti-interference. Built-in prevention supports dense mounting.

Installation Guide

• Snap the LV-N12N onto the LV series rail.
• Keep the unit away from strong heat sources.
• Use 24 VDC power with low ripple.
• Wire NPN outputs to your PLC input card.
• Set LIGHT-ON or DARK-ON before running.
• Leave room for up to 17 connected units.

Setup and Maintenance

• Pick a response mode that fits your line speed.
• Set the timer mode and duration as needed.
• Check the output LED during first run.
• Wipe the case with a dry cloth.
• Check cable strain relief each month.

Compatibility Notes

• Works with Keyence LV series sensor heads.
• Fits LV series expansion racks.
• Connects to common NPN PLC inputs.
• Check power class before wiring.

Package List and Warranty

• 1 x Keyence LV-N12N expansion unit
• 12-month warranty
• Ships in 12-24 hours by FedEx, UPS, or DHL

Expert Review

The LV-N12N is a smart pick for crowded panels. Its small body saves rail space. The 80 µs response suits fast sorting and marking lines. Dual NPN outputs give simple logic without extra relays. The timer range covers most delay needs. Eco modes cut heat and power draw. The main limit is that it is an expansion unit. It needs a main LV unit to work. For teams already on the LV platform, this unit adds speed and output count at low cost.

Manager’s Insight

This module lowers total cost per point. One unit drives two outputs. That cuts panel space and wiring time. The 17-unit chain supports big machines without extra racks. Fast shipping and a 12-month warranty reduce spare-part risk. For high-mix lines, the LV-N12N is easy to swap and quick to set.

Best Fit Equipment and Applications

• High-speed sorting machines.
• Label and mark detection stations.
• Small part presence checks.
• Packaging line edge sensing.
• PCB and electronics feed lines.
• Automated assembly cells.

FAQ

Does the LV-N12N work alone?

No. It is an expansion unit. You need a main LV unit and a sensor head.

How fast can it switch?

It reaches 80 µs in HIGH SPEED mode. Slower modes boost stability.

Can I chain many units?

Yes. You can connect up to 17 units. A two-output type counts as two.

What power does it need?

Use 24 VDC. The range is 10 to 30 VDC with low ripple.

How do I choose the right mode?

Pick HIGH SPEED for fast lines. Pick ULTRA or MEGA for noisy or slow targets. Match the mode to your cycle time.

Contact Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825

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