Keyence LV-N11CP Digital Laser Sensor Amplifier Unit

Product Introduction

The LV-N11CP from Keyence is a digital laser sensor amplifier. It belongs to the LV-N series. This model serves as a main unit. Also, it uses an M8 connector for quick wiring. The unit provides two control outputs and one external input. Users can select LIGHT-ON or DARK-ON mode with a switch.

This amplifier carries no built-in communication ports. However, it supports network use through NU series units. Those network units are sold separately. Furthermore, the amplifier offers six response time settings. These range from 80 µs in HIGH SPEED mode to 16 ms in MEGA mode.

Technical Specifications

First, the LV-N11CP provides a PNP open collector output. Each output handles 30 V and 100 mA maximum. Residual voltage stays at 1.2 V or less for currents up to 10 mA. For currents between 10 and 100 mA, it stays at 2.2 V or less. The unit also includes protection circuits. These cover reverse polarity, over-current, and surge absorption.

Next, the timer function offers four modes. Users can pick OFF, OFF-delay, ON-delay, or one-shot. The timer duration ranges from 1 ms to 9,999 ms. Maximum error against the setting value is ±10%. Additionally, the external input gives one input channel.

Response Modes and Expansion

The LV-N11CP offers six response modes. HIGH SPEED mode reaches 80 µs. FINE mode reaches 250 µs. TURBO mode reaches 500 µs. SUPER mode reaches 1 ms. ULTRA mode reaches 4 ms. MEGA mode reaches 16 ms.

Moreover, users can connect multiple units. Up to 17 units can link in total. However, a 2-output type counts as two units. Interference prevention depends on the mode and sensor head. It allows 0 to 4 units in most setups.

Electrical and Environmental Parameters

The LV-N11CP runs on 24 VDC nominal. The operating range spans 10 to 30 VDC. Ripple stays at 10% peak-to-peak maximum. Normal power consumption reaches 830 mW maximum at 30 V. At 24 V, the current draw is 30 mA.

The operating temperature ranges from -20 to +55 °C. Freezing must be avoided. Derating applies when multiple units connect. Relative humidity ranges from 35 to 85% RH without condensation. Vibration resistance covers 10 to 55 Hz. The double amplitude reaches 1.5 mm for 2 hours on each X, Y, and Z axis. Shock resistance reaches 500 m/s².

Physical and Installation Details

The LV-N11CP measures 32.6 × 9.8 × 78.7 mm. It weighs approximately 20 g. The case uses polycarbonate material. The cable jacket uses PVC.

First, power down the panel before mounting. Next, attach the unit to a DIN rail. Then, plug the M8 connector into the port. After that, wire the PNP outputs to the controller. Moreover, set the LIGHT-ON or DARK-ON mode as needed. Then, choose the response time for the application. Finally, verify all connections before power up.

Packaging List

One Keyence LV-N11CP amplifier main unit.
M8 connector port.
Instruction sheet.

FAQ

Q1: What is the LV-N11CP?
A: It is a digital laser sensor amplifier main unit with an M8 connector.

Q2: What output type does it provide?
A: It provides PNP open collector output with two channels.

Q3: What is the fastest response time?
A: The fastest response time is 80 µs in HIGH SPEED mode.

Q4: How many units can connect together?
A: Up to 17 units can connect, counting a 2-output type as two units.

Q5: How much does the LV-N11CP weigh?
A: It weighs approximately 20 g.