Keyence LV-N12CN M8 Laser Amplifier Expansion Unit

Keyence LV-N12CN Expansion Amplifier with M8 Quick Connection

Product Introduction
The Keyence LV-N12CN extends an LV-N series sensing chain with one more channel. It is an expansion unit, so a main amplifier must supply system logic and power coordination. What sets this model apart is its M8 connector, which removes the need to rewire when a module fails. The unit also carries one control output and one external input, giving it more capability than simpler zero-line expansions. Furthermore, its 9.8 mm housing keeps panel density high. This makes the amplifier a practical pick for multi-point inspection stations and automated assembly lines.

Technical Specifications and Performance

Power comes from a 24 VDC nominal supply, and the unit tolerates 10 to 30 VDC. Consumption peaks at 830 mW, roughly 30 mA at 24 V. Six response settings range from 80 µs in HIGH SPEED to 16 ms in MEGA. Such a spread allows fine tuning when targets differ in reflectivity or speed. Output logic is switch-selectable between LIGHT-ON and DARK-ON. In addition, the built-in timer handles OFF, OFF-delay, ON-delay, and one-shot modes from 1 ms to 9,999 ms with about ±10 % error.

Key Electrical Parameters:

• Supply Voltage: 24 VDC nominal (10–30 VDC operating)

• Response Time: 80 µs (HIGH SPEED) / 250 µs / 500 µs / 1 ms / 4 ms / 16 ms

• Control Output: 1 × NPN open collector, 30 V, 100 mA max

• External Input: 1 input

• Timer Range: 1 ms to 9,999 ms (selectable)

Mechanical and Environmental Characteristics

The polycarbonate case measures 32.6 × 9.8 × 78.7 mm and weighs about 20 g. Its slim 9.8 mm profile saves valuable rail space in dense cabinets. Operating temperature spans -20 to +55 °C without freezing, though derating applies when units are packed together. Vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude across all axes. Shock tolerance reaches 500 m/s², three times per axis. Humidity stays within 35 to 85 % RH without condensation.

Physical Details:

• Dimensions: 32.6 mm (H) × 9.8 mm (W) × 78.7 mm (D)

• Weight: Approx. 20 g (unit only)

• Case Material: Polycarbonate

• Cable Material: PVC

• Protection Circuit: Reverse polarity, over-current, surge absorber

Installation and System Integration

Installation begins with DIN rail mounting beside the main amplifier. Slide the LV-N12CN toward the main unit until the expansion connector seats fully. The combined chain, main unit included, must stay within 17 units, and a two-output type counts as two. Next, plug in the M8 connector and verify the supply voltage under full load. Short sensor leads help preserve the 80 µs response in HIGH SPEED mode. Finally, add NU series communication units to the same rail when network access is required.

Installation Notes:

• Always power down before attaching or detaching expansion modules.

• Use a Class 2 or LPS supply to satisfy safety requirements.

• With more than 9 connected units, keep the supply at 20 V or above.

Packaging List

• Keyence LV-N12CN Expansion Amplifier Unit × 1

• Installation Manual × 1

• Protective Packaging

Shipping: We dispatch orders via Fedex, UPS, DHL with tracking provided.

Frequently Asked Questions

Q1: Can the LV-N12CN operate without a main amplifier?
No. It is an expansion unit and needs a main amplifier such as the LV-N11CN for logic and output coordination.

Q2: How is this model different from the LV-N10?
The LV-N12CN offers one control output and one external input plus an M8 connector. The LV-N10 is a zero-line expansion with no outputs or inputs.

Q3: What is the maximum number of connected units?
A single system holds up to 17 units including the main amplifier. A two-output type counts as two units toward that limit.

Q4: Can I adjust response speed on this expansion unit?
Yes. Response time is set through the system across six levels, from 80 µs HIGH SPEED to 16 ms MEGA.

Q5: How do I add fieldbus connectivity?
Install NU series communication units alongside the LV-N series amplifiers. The LV-N12CN itself has no built-in network ports.