FS-N44P Keyence FS-N40 Fiber Optic Sensor Amplifier

FS-N44P Keyence FS-N40 Digital Fiber Optic Sensor Amplifier

Technical Specifications

• Brand: Keyence
• Model: FS-N44P
• Series: FS-N40
• Category: Digital fiber optic sensor amplifier
• Output type: PNP, open-collector, 30 V max, 100 mA max per output
• Residual voltage: 1.6 V at 10 mA; 2.2 V from 10 to 100 mA
• Control outputs: 2 (expansion unit, dual output)
• External input: 1 channel, ON time 2 ms, OFF time 20 ms or longer
• Response time: 23 µs (S-HSPD), 50 µs (HSPD), 250 µs (FINE), 500 µs (TURBO), 1 ms (SUPER), 4 ms (ULTRA), 16 ms (MEGA), 64 ms (TERA)
• Light source: Red four-element LED, wavelength 660 nm
• Supply voltage: 10 to 30 VDC, ripple 10% P-P or less, Class 2 or LPS
• Power consumption: 990 mW or less (39 mA at 24 V; ECO ON 920 mW; ECO FULL 830 mW)
• Operating temperature: -20 to +55 °C, no freezing, derates with expansion
• Unit expansion: Up to 16 units, 17 total including main unit
• Communication ports: None; no built-in protocols or expansion
• Weight: Approx. 73 g
• Type: Cable type

Performance and Environmental Resistance

• The FS-N44P covers eight response modes from 23 µs to 64 ms for speed or stability.
• Fast S-HSPD mode suits high-speed detection, while TERA mode smooths noisy signals.
• The 660 nm red LED gives visible spot alignment and consistent sensitivity across targets.
• Open-collector outputs handle 30 V and 100 mA per channel for direct PLC or relay loads.
• Residual voltage stays low at 1.6 V at 10 mA and 2.2 V up to 100 mA.
• This expansion unit draws power from the main amplifier and adds no separate supply.
• Power draw stays under 990 mW, and ECO modes cut consumption to 920 mW or 830 mW.
• Operating range of -20 to +55 °C supports cold storage and warm cabinets without freezing.
• Expansion derates temperature, so plan spacing when you stack many FS-N40 units.
• No built-in communication ports keep wiring simple and reduce interference paths.

Installation Guide

• Mount the FS-N44P next to a main unit on a DIN rail or panel bracket.
• Slide the side connector into the main unit until the latch locks firmly in place.
• Wire each PNP output to the PLC input or load, keeping current below 100 mA.
• Connect the external input for bank switching or timing control with 2 ms ON pulses.
• Attach the fiber cable to the amplifier port and lock the connector until it clicks.
• Power on the main unit and use the OLED display to set response mode and threshold.
• Keep the total chain at 16 units or fewer, counting dual-output units as two.
• Verify detection with a test target, then lock the panel keys to prevent changes.
• Route signal cables away from motor drives to reduce electrical noise pickup.

Packing List

• 1 x Keyence FS-N44P digital fiber optic sensor amplifier expansion unit
• 1 x Instruction manual
• 1 x Mounting bracket and hardware set
• 1 x Protective packaging

Shipping and Support

• We keep this item in stock and ship within 5 days of order confirmation.
• We use FedEx, UPS, and DHL for international delivery.
• We accept returns within 30 days under our standard return policy.
• All units are brand new and original from Keyence.

FAQ

• Q: What is the difference between the FS-N44P and a main unit?
  A: The FS-N44P is an expansion unit and needs a main unit for power and control.
• Q: What is the fastest response time of the FS-N44P?
  A: The S-HSPD mode reaches 23 µs, and TERA mode extends to 64 ms for stability.
• Q: How many outputs does the FS-N44P provide?
  A: This expansion unit offers two PNP control outputs and one external input.
• Q: Can I expand the FS-N44P with other FS-N40 units?
  A: Yes, you can connect up to 16 units, for 17 total including the main unit.
• Q: What supply voltage does the FS-N44P need?
  A: It draws from the main unit, which runs on 10 to 30 VDC with 10% ripple.
• Q: What is the operating temperature range?
  A: The range is -20 to +55 °C with no freezing, and it derates with expansion.
• Q: Does the FS-N44P include communication ports?
  A: No, it has no built-in ports or protocols, which keeps wiring simple.
• Q: How much current can each output handle?
  A: Each open-collector output handles up to 30 V and 100 mA.
• Q: Is the FS-N44P in stock and how fast do you ship?
  A: Yes, we have stock and ship within 5 days via FedEx, UPS, or DHL.
• Q: Can I return the FS-N44P if it does not fit my line?
  A: Yes, we support returns within 30 days under our standard policy.