Product Description

The Keyence FS-N41N is a high-performance digital fiber optic amplifier designed for precise detection in industrial automation applications. It features a red LED light source with a wavelength of 660 nm and offers a rapid response time of 23 µs in S-HSPD mode, accommodating various detection needs. The amplifier includes multiple detection modes such as S-HSPD, HSPD, FINE, TURBO, SUPER, ULTRA, MEGA, and TERA, each offering different response times to suit specific application requirements. Its NPN open-collector output can handle up to 100 mA with a residual voltage of 1.4 V max. The FS-N41N operates on a 10 to 30 VDC power supply and offers low power consumption, making it suitable for energy-efficient applications. Housed in a durable polycarbonate case, it is engineered to withstand environmental challenges, offering protection against reversed polarity, overcurrent, and surge conditions. Its robust design ensures reliable performance in demanding industrial settings.

Technical Specifications

• Model: FS-N41N
• Type: Main unit
• Output: NPN open-collector
• Light Source: Red LED (wavelength: 660 nm)
• Response Time:
• S-HSPD: 23 µs
• HSPD: 50 µs
• FINE: 250 µs
• TURBO: 500 µs
• SUPER: 1 ms
• ULTRA: 4 ms
• MEGA: 16 ms
• TERA: 64 ms
• Control Output: Open-collector, 30 V or less, 100 mA or less per output, 100 mA or less total for 2 outputs (when used as a solitary unit) / 20 mA or less (when used as an expansion unit)
• Residual Voltage: 1.4 V or less (output current: 10 mA or less) / 2 V or less (output current: 10 to 100 mA)
• External Input: Input time: 2 ms (ON) / 20 ms (OFF) or longer
• Unit Expansion: Up to 16 units (17 units connected in total including the main unit). However, each dual output type will be treated as two expansion units.
• Protection Circuit: Protection against reverse power connection, output overcurrent, output surge, and reverse output connection
• Mutual Interference Prevention:
• S-HSPD/HSPD: 0 units
• FINE: 4 units
• TURBO/SUPER/ULTRA/MEGA/TERA: 8 units
• (The mutual interference prevention values are twice those shown here when Double is set.)
• Power Supply Voltage: 10 to 30 VDC (including 10% ripple (P-P) or less), class 2 or LPS
• Current Consumption:
• During normal operation: 870 mW or less (34 mA or less at 24 V / 62 mA or less at 12 V)
• ECO ON: 800 mW or less (31 mA or less at 24 V / 56 mA or less at 12 V)
• ECO FULL: 710 mW or less (28 mA or less at 24 V / 49 mA or less at 12 V)
• Ambient Light:
• Incandescent lamp: 20,000 lux or less
• Sunlight: 30,000 lux or less
• Ambient Temperature: -20 °C to +55 °C (no freezing)
• Vibration Resistance: 10 to 55 Hz; double amplitude 1.5 mm; 2 hours each for X, Y, and Z axes
• Shock Resistance: 500 m/s²; 3 times each for X, Y, and Z axes
• Case Material: Polycarbonate
• Weight: Approx. 78 g​