Keyence LV-N12CP Laser Sensor Amplifier M8 PNP

Keyence LV-N12CP Digital Laser Sensor Amplifier Expansion Unit

Product Introduction

The LV-N12CP is a member of the Keyence LV-N series, a widely used digital laser sensor family for accurate detection and positioning. Specifically, this model functions as an expansion unit fitted with an M8 connector instead of a fixed cable. Maintenance teams favor the LV-N12CP because the plug-in connection speeds up replacement and reduces downtime during line changeovers. Additionally, the unit operates alongside a main amplifier, so one power source serves the entire amplifier bank.

Technical Specifications

The LV-N12CP delivers one control output and one external input. Output selection is switch-configurable between LIGHT-ON and DARK-ON modes. Moreover, the timer function covers OFF, OFF-delay, ON-delay, and one-shot settings, with an adjustable range of 1 ms to 9,999 ms and maximum error of ±10%. Response time offers six selectable modes: 80 µs (HIGH SPEED), 250 µs (FINE), 500 µs (TURBO), 1 ms (SUPER), 4 ms (ULTRA), and 16 ms (MEGA). Interference prevention handles 0 to 4 units depending on mode and sensor head.

The control output is a PNP open collector rated at 30 V. Residual voltage stays 1.2 V or less up to 10 mA and 2.2 V or less from 10 to 100 mA, with 100 mA maximum per output. Protection circuits include reverse polarity, over-current, and surge absorption. Because this model carries a single output, it counts as one unit toward the expansion limit.

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 about 30 mA at 24 V. The housing measures 32.6 × 9.8 × 78.7 mm and weighs only around 20 g thanks to the connector design. The case uses polycarbonate, and the cable jacket is PVC. Operating temperature spans -20 to +55 °C without freezing, with derating applied when units are stacked. 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, and shock resistance is 500 m/s², three times per axis.

Installation Guide

First, mount the LV-N12CP next to the main amplifier on a DIN rail and slide the units together until the side connectors lock. Next, plug the M8 connector cable into the unit and tighten the coupling nut by hand. Confirm that the total expansion count stays at or below 17 units, counting two-output models as two units. The expansion unit draws power through the main amplifier, so no separate supply wiring is required. After that, set the response mode and timer using the front panel controls. Finally, perform a teach or threshold adjustment with the attached sensor head and verify the output before production.

Packaging List

• Keyence LV-N12CP expansion amplifier unit (1 pc)

• M8 connector cable (depending on configuration)

• Instruction sheet

FAQ

Q1: What is the difference between the LV-N12CP and LV-N12P?
The LV-N12CP uses an M8 connector for quick-disconnect wiring. The LV-N12P uses a fixed cable instead.

Q2: Does the LV-N12CP work with any main amplifier?
The LV-N12CP connects to LV-N series main amplifiers such as the LV-N11P. It draws power through the side connectors.

Q3: How many units can one system include?
A single system supports up to 17 units total, and a two-output model counts as two units toward that limit.

Q4: What is the fastest response time available?
The LV-N12CP reaches 80 µs in HIGH SPEED mode. Certain sensor heads may restrict this setting.

Q5: Which shipping methods do you offer?
We ship worldwide through Fedex, UPS, and DHL, and we provide tracking details after dispatch.