Keyence LV-N11P Digital Laser Sensor Unit

Keyence LV-N11P Digital Laser Sensor Amplifier

Product Introduction

The LV-N11P belongs to the Keyence LV-N series, a multi-purpose digital laser sensor family known for long-range detection and visible beam spots. Specifically, this model serves as the main amplifier unit with a cable connection and PNP output configuration. Engineers select the LV-N11P when they require fast response times and reliable switching signals for automated inspection, positioning, or presence detection tasks. Additionally, the unit supports DIN-rail mounting and expansion with up to 17 total units, making it suitable for multi-channel sensing architectures.

Technical Specifications

The LV-N11P provides two control outputs and one external input. Output selection is switch-configurable between LIGHT-ON and DARK-ON modes. Moreover, the timer function includes OFF, OFF-delay, ON-delay, and one-shot options, with a duration range of 1 ms to 9,999 ms and maximum error of ±10%. Response time is user-selectable across six modes: 80 µs (HIGH SPEED), 250 µs (FINE), 500 µs (TURBO), 1 ms (SUPER), 4 ms (ULTRA), and 16 ms (MEGA). For interference prevention, the unit supports 0 to 4 units depending on mode and connected sensor head.

The control output is a PNP open collector rated at 30 V. Residual voltage stays at 1.2 V or less for output currents up to 10 mA, and 2.2 V or less for 10–100 mA. Stand-alone output capacity reaches 100 mA maximum per output. Protection circuits include reverse polarity, over-current, and surge absorption.

Electrical and Mechanical Parameters

Supply voltage is 24 VDC nominal, with an operating range of 10 to 30 VDC and ripple tolerance of 10% P-P maximum. Power consumption is approximately 830 mW maximum at 30 V, or roughly 30 mA at 24 V. The compact housing measures 32.6 × 9.8 × 78.7 mm and weighs approximately 75 g. The case material is polycarbonate, and the cable jacket uses PVC. Operating temperature ranges from -20 to +55 °C without freezing, and relative humidity tolerance is 35 to 85% RH without condensation. Vibration resistance follows 10–55 Hz with 1.5 mm double amplitude for 2 hours per axis. Shock resistance is 500 m/s², three times per axis.

Installation Guide

First, mount the LV-N11P onto a DIN rail or attach it using the optional mounting bracket. Next, connect the cable leads according to the pin assignment: brown for power, blue for ground, and the remaining wires for outputs and external input. Ensure the supply voltage stays within the 10–30 VDC range and use a Class 2 or LPS power source. For multi-unit installations, keep the total expansion count at or below 17 units (two-output models count as two units). After wiring, select the desired response mode and timer setting via the front panel controls. Finally, perform a teach or threshold adjustment with the connected sensor head before starting operation.

Packaging List

• Keyence LV-N11P amplifier main unit (1 pc)

• Cable (attached to unit)

• Mounting bracket (depending on configuration)

• Instruction sheet

FAQ

Q1: What is the difference between the LV-N11P and LV-N12P?
The LV-N11P is the main unit with cable and PNP output. The LV-N12P is typically the expansion unit without cable leads for power.

Q2: Can I use the LV-N11P with a different sensor head series?
The LV-N11P is designed for the LV-N series laser sensor heads. However, certain heads like the LV-S31/S62/S63 restrict the 80 µs HIGH SPEED mode.

Q3: How many LV-N11P units can I connect together?
You can connect up to 17 units total, though a two-output model like the LV-N11P counts as two units toward that limit.

Q4: What is the maximum response speed of the LV-N11P?
The fastest setting is 80 µs in HIGH SPEED mode. This mode may be unavailable with certain sensor heads.

Q5: What shipping methods do you use for the LV-N11P?
We ship worldwide via Fedex, UPS, and DHL. Tracking information is provided after dispatch.