Product Description

The KEYENCE KV-N40AT is a compact, AC-powered programmable logic controller (PLC) from the KV Nano series, designed for small to medium-scale automation applications. It features 24 DC inputs and 16 transistor (sink) outputs, offering a total of 40 I/O points in a space-saving form factor. The controller supports programming in expanded ladder logic, KV Script, and mnemonic languages, with a program capacity of 16,000 steps. It also includes high-speed input capabilities with a response time of 2 µs and a high-speed output frequency of 100 kHz. The KV-N40AT is equipped with a built-in RS-232C serial port for communication and offers a 24 VDC output power supply with a capacity of 0.6 A. Its robust design ensures reliable performance in environments with temperatures ranging from 0°C to 55°C and humidity levels between 5% and 95% RH.​

Technical Specifications

• Model: KV-N40AT
• Type: Relay-output PLC
• Power Supply: 100 to 240 VAC (+10%/-15%)
• Inputs:
• 24 points (18 general-purpose, 6 high-speed A/B-phase)
• Input voltage: 24 VDC
• Input current: 5.3 mA (general), 6.5 mA (high-speed)
• Input delay: 30 µs (general), 2 µs (high-speed A/B-phase)
• Outputs:
• 16 transistor (sink) outputs
• Rated load: 30 VDC, 0.5 A
• ON/OFF response time: 2 µs (high-speed)
• Overcurrent protection: Provided for each common
• Communication:
• Built-in RS-232C serial port
• Baud rates: 1200 to 115200 bps
• Programming:
• Languages: Expanded ladder, KV Script, mnemonic
• Program capacity: 16,000 steps
• Environmental:
• Operating temperature: 0°C to 55°C
• Storage temperature: -25°C to +75°C
• Humidity: 5% to 95% RH (no condensation)
• Vibration resistance: 5 to 9 Hz (amplitude: 3.5 mm), 9 to 150 Hz (acceleration: 9.8 m/s²)
• Shock resistance: 150 m/s², 11 ms, 3 times in each direction
• Physical:
• Dimensions: 90 × 90 × 90 mm
• Weight: Approximately 350 g
• Mounting: Suitable for DIN rail or panel mounting​