LV-N12N Keyence Laser Sensor Amplifier | LV-N Series

Keyence LV-N12N Digital Laser Sensor Amplifier — Expansion Unit for LV-N Series

Technical Specifications

• Brand: Keyence
• Model: LV-N12N
• Series: LV-N series
• Category: Digital laser sensor amplifier (expansion unit, cable type)
• Supply voltage: 24 VDC nominal, operating range 10 to 30 VDC
• Power consumption: 830 mW maximum at 30 V; 30 mA at 24 V
• Output type: NPN open collector, 30 V max, 100 mA per output
• Response time: 80 µs to 16 ms, selectable across six modes
• Timer function: OFF, OFF-delay, ON-delay, or one-shot from 1 ms to 9,999 ms
• Control output: 1 output; external input: 1 input
• Output selection: LIGHT-ON or DARK-ON, switch-selectable
• Operating temperature: -20 to +55 °C with no freezing
• Humidity: 35 to 85 % RH with no condensation
• Vibration resistance: 10 to 55 Hz, 1.5 mm double amplitude, 2 hours per axis
• Shock resistance: 500 m/s², 3 times in each X, Y, Z direction
• Dimensions: 32.6 × 9.8 × 78.7 mm; weight: approx. 65 g
• Case material: Polycarbonate; cable material: PVC

Key Performance Features

• Fast 80 µs response in HIGH SPEED mode suits high-speed inspection lines.
• Six selectable response modes let you balance speed against noise stability.
• Interference prevention supports 0 to 4 units, depending on mode and sensor head.
• Built-in protection covers reverse polarity, over-current, and surge events.
• Network expansion works through separately available NU series units.
• One control output and one external input handle standard switching tasks.

Installation Guide

• Mount the LV-N12N on a DIN rail next to the main amplifier unit.
• Connect the cable leads to the 24 VDC supply and confirm polarity first.
• Link the expansion unit to the main amplifier through the side connector.
• Keep total system units at 17 or fewer, counting a 2-output type as 2 units.
• Set LIGHT-ON or DARK-ON with the switch before you start operation.
• Adjust timer values from 1 ms to 9,999 ms based on your process timing.
• Allow derating when you install multiple units close together.

Package Contents

• 1 × Keyence LV-N12N expansion amplifier unit
• 1 × cable set with PVC jacket
• 1 × mounting accessory kit
• 1 × instruction sheet

Shipping and Support

• We ship worldwide through FedEx, UPS, and DHL.
• We hold this item in stock and dispatch orders within 5 days.
• We accept returns within 30 days of delivery.

FAQ

• Q: Does the LV-N12N work as a standalone sensor?
  A: No. It is an expansion unit and requires a main amplifier from the LV-N series.
• Q: How many units can one system hold?
  A: You can connect up to 17 total units, and a 2-output type counts as 2 units.
• Q: What response time can I select?
  A: You can choose from 80 µs, 250 µs, 500 µs, 1 ms, 4 ms, or 16 ms.
• Q: Does it support network communication?
  A: It has no built-in port, but NU series network units add that function.
• Q: Is the item new and original?
  A: Yes, we supply a brand-new original unit with every order.
• Q: When will my order ship?
  A: We keep stock ready and send orders within 5 days by DHL, FedEx, or UPS.