KEYENCE FU-49U Reflective Fiber Unit
Product Description
The KEYENCE FU-49U is a highly versatile and compact fiber optic
sensor amplifier engineered to deliver exceptional detection
performance across a diverse range of industrial automation
applications. This advanced sensor system combines sophisticated
functionality with user-friendly operation, making it particularly
effective for detecting challenging targets that conventional
photoelectric sensors struggle with, including miniature
components, transparent materials, variably colored objects, and
items with glossy or reflective surfaces.
Designed with a universal voltage input capability, the FU-49U
offers remarkable installation flexibility for global manufacturing
environments. Its compact form factor enables high-density mounting
in control panels and machinery where space optimization is
critical. The sensor features KEYENCE's innovative Auto Sensitivity
Setting function, which automatically calculates and maintains the
optimal detection threshold based on actual operating conditions,
ensuring consistent performance despite environmental fluctuations,
background interference, or target variations.
The unit boasts an intuitive dual digital display system that
simultaneously shows both real-time received light intensity and
preset threshold values, enabling quick setup and precise
calibration without additional tools or complex procedures. This
visual feedback system significantly reduces installation time and
minimizes adjustment errors. The FU-49U supports both through-beam
and diffuse-reflective detection modes, providing adaptable
solutions for various application requirements. Additional advanced
functions include customizable timer operations with multiple modes
and comprehensive status indicators for immediate operational
feedback.
Ideal for precision manufacturing applications in electronics
assembly, pharmaceutical production, packaging machinery, and
automotive manufacturing, the FU-49U delivers reliable performance
in detecting small electronic components, medical devices,
transparent containers, and precision mechanical parts. Its robust
design ensures stable operation even in challenging industrial
environments with vibration, electrical noise, or temperature
variations.
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Technical Specifications:
Electrical Characteristics: The FU-49U operates on a universal
voltage range of 12-240V AC/DC, accommodating both alternating and
direct current power sources with automatic compatibility. Power
consumption is limited to 3W maximum during operation. The unit
provides one NPN output configuration with a maximum load current
capacity of 100mA and a residual voltage of 2V maximum. The output
response time is an exceptionally fast 1ms maximum, supporting
high-speed detection applications.
Performance Specifications: The sensitivity adjustment range
extends from 0 to 9999 discrete steps, providing extremely fine
resolution for precise detection settings. The unit features a
10-segment bar graph indicator for visual sensitivity assessment
alongside the digital display. Detection stability is maintained
within ±3% of set value despite voltage fluctuations or
environmental changes. The repeat accuracy is within ±1% of the
measured value under standard conditions.
Display and Indicators: The sensor incorporates dual independent
4-digit LED displays that simultaneously show current received
light intensity and preset threshold values. The display system
includes a comprehensive status indication system featuring power
indicator (green), operation indicator (green), output indicator
(orange), and stability indicator (green). All indicators are
clearly visible from distances up to 5 meters under normal lighting
conditions.
Environmental Specifications: The operating temperature range spans
from -25°C to +55°C, ensuring reliable performance in most
industrial environments. The storage temperature range extends from
-40°C to +70°C. Humidity resistance ranges from 35% to 85% relative
humidity (non-condensing). The vibration resistance is rated for
10-55Hz frequency with 1.5mm amplitude. When properly
panel-mounted, the unit achieves an IP50 environmental protection
rating against dust ingress.
Physical Characteristics: The compact dimensions measure 17.5mm in
width, 48mm in height, and 75mm in depth. The weight is
approximately 120g. The housing is constructed of high-grade ABS
plastic with metal mounting components for durability. The front
panel features a chemical-resistant window for display protection.
Functional Capabilities: The Auto Sensitivity Setting function
automatically calculates and sets optimal detection thresholds. The
unit offers multiple operating modes including standard mode, timer
mode (ON-delay, OFF-delay, one-shot), and control mode. The
built-in timer function provides adjustable timing from 1ms to 10s
in 1ms increments. Remote teaching capability is available through
external input connections.
Compatibility and Connectivity: The FU-49U is fully compatible with
all KEYENCE FU Series fiber optic cables and sensing heads.
Connection is established through standard KEYENCE fiber optic
connectors. The unit supports both through-beam and
diffuse-reflective detection methodologies depending on fiber optic
configuration.
Installation Requirements: Mounting requires panel cutout
dimensions of 44.5mm x 69mm. The unit is secured using two M3
mounting screws with a recommended torque of 0.5N·m. Wiring
connections are made through removable terminal blocks with screw
clamping mechanism.
Disclaimer: This information is provided for reference purposes
only. For complete and definitive specifications, including
detailed installation requirements, safety guidelines, and
operational limitations, always consult the official KEYENCE FU-49U
product documentation and technical manual. Proper installation,
configuration, and maintenance by qualified personnel are essential
for ensuring optimal performance and compliance with relevant
safety standards and regulations. Specifications are subject to
change without notice.
Our Services:
1.All our products are new and orginal, and of good quality2.Our prices are very competitive.3.We have a large quantity in stock, so we could help the customers
to get the components which are dificult to get.4.All inquiries will be valued and will reply in 24.
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