Keyence LV-N12N Laser Sensor Amplifier Unit Guide
Product Introduction
The Keyence LV-N12N is a digital laser sensor amplifier expansion unit. It belongs to the LV-N series and works as a slave module. Therefore, engineers pair this unit with a compatible main amplifier. This module features dual NPN outputs and one external input. Furthermore, it supports a visible red laser beam with a proper sensor head. The LV-N12N lacks a monitor output. Hence, users rely on the main unit display.
Core Value
Firstly, the LV-N12N delivers high-speed response for demanding tasks. It offers selectable response times from 80 microseconds to 16 milliseconds. Secondly, this expansion unit enables system scalability. Users can connect up to 17 total units on one DIN rail. In addition, the unit includes protection circuits. These circuits guard against reverse polarity, overcurrent, and surge events. Consequently, the LV-N12N performs reliably in harsh environments.
Technical Insights
The LV-N12N utilizes NPN open collector outputs. Each output handles 20 milliamps maximum as an expansion unit. Besides, the module incorporates interference prevention. This feature lets four units operate closely without crosstalk. The timer function offers four modes. Users select OFF-delay, ON-delay, one-shot, or timer OFF modes. Furthermore, timer duration adjusts from 1 to 9999 milliseconds.
Installation & Maintenance
Mount the LV-N12N onto a standard DIN rail. Firstly, ensure the main amplifier sits at the far left. Then, slide the expansion unit adjacent to the main module. Connect units with the provided cable. Meanwhile, verify power stays within 10 to 30 VDC. For wiring, use NPN-compatible PLC input cards. During maintenance, wipe the exterior with a dry cloth. Do not open the housing.
Buyer's Guide FAQ
What is the primary function of the Keyence LV-N12N?
The LV-N12N acts as an expansion module. It adds two NPN outputs to a main LV-N series amplifier.
How many LV-N12N units can connect to one system?
A single system supports up to 17 total units. However, a dual-output type counts as two units.
What response time settings does the LV-N12N offer?
The unit provides six response modes. These modes range from 80 µs to 16 ms.
Does the LV-N12N include a monitor output?
No, this expansion unit lacks a monitor output. Operators use the main amplifier for signal monitoring.
What power voltage does the LV-N12N require?
The module operates on 24 VDC nominal. The acceptable range spans 10 to 30 VDC.
