[System Maintenance Notice]
Due to ongoing system maintenance, the site search and specification search functions are temporarily unavailable. We apologize for any inconvenience this may cause and appreciate your understanding.

【Notification of Manufacturer Change for Panasonic Industrial Devices SUNX Products and Panasonic Industrial Devices SUNX Tatsuno Products】
From April 1, 2024, the terms "Panasonic Industrial Devices SUNX Co., Ltd." and "Panasonic Industrial Devices SUNX Tatsuno Co., Ltd."
in this page and in the manuals and other documents to be downloaded will all be replaced with "Panasonic Industry Co., Ltd." and applied accordingly.


Digital Fiber Sensor FX-550L


Type Discrete wire type M12 connector type
Model No. FX-551L3-P-C2 FX-551L3-P-J
Applicable regulations and certifications CE Marking (EMC Directive, RoHS Directive), UKCA Marking (EMC Regulations, RoHS Regulations)
Supply voltage 12 to 24 V DC +10−15 % Ripple P-P 10 % or less
Power consumption Normal operation: 960 mW or less (current consumption 40 mA or less at 24 V supply voltage)
ECO mode: 720 mW or less (current consumption 30 mA or less at 24 V supply voltage)
output (C/Q)
(Note 2)
IO-Link Specification V1.1
Baud rate COM3(230.4kbps)
Process data 4byte
cycle time
Control output (DO) PNP open-collector transistor
• Maximum source current: 50 mA
• Applied voltage: 30 V DC or less (between output and +V)
• Residual voltage: 2 V or less (Note 3) (at maximum source current)
  Output operation Switchable either Light-ON or Dark-ON by L/D mode
Short-circuit protection Incorporated
Response time STD: 250 μs or less, LONG: 2 ms or less, U-LG: 4 ms or less, HYPR: 24 ms or less, selectable
Sensitivity setting 2-point teaching / Limit teaching / Full-auto teaching / Manual adjustment
Incident light sensitivity setting Incorporated, 4 steps
Incident light intensity display
STD: 0 to 4,000, LONG: 0 to 8,000, U-LG / HYPR: 0 to 9,999
Timer function Incorporated with variable OFF-delay / ON-delay / One-shot, switchable either effective or ineffective
  Timer period 0.1 to 999.9 ms approx., in units of 0.1 ms approx.
Different frequency
interference prevention
function (Note 4)
Incorporated (up to 4 units). Note that the response time varies depending on the setting.
F-1: 0.8 ms or less, F-2: 0.9 ms or less, F-3: 1.0 ms or less, F-4: 1.7 ms or less
Protection IP40(IEC)
Ambient temperature -10 to +55℃ +14 to +131℉ (If 4 to 7 units are mounted in cascade: -10 to +50℃ +14 to +122℉ or if 8 to 16 units are mounted in cascade: -10 to +45℃ +14 to +113℉) (No dew condensation or icing allowed),
Storage: -20 to +70℃ -4 to +158℉
Vibration resistance 10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude (10 G max.) in X, Y and Z directions for two hours each
Shock resistance 98 m/s2 acceleration (10 G approx.) in X, Y and Z directions five times each
Emitting element (modulated) Red LED (Peak emission wavelength: 660 nm 0.026 mil)
Material Enclosure, Case cover: Polycarbonate, Switch: Polyacetal
Cable 0.2 mm2 4-core cabtyre cable, 2 m 6.562 ft long 0.2 mm2 cabtyre cable with M12 connector, 0.3 m 0.984 ft long
Cable extension Extension up to total 20 m 65.617 ft is possible with 0.3 mm2, or more, cable.
(Condition of CE compliance: less tan 20 m 65.617 ft) (however, supply voltage 12 V DC or more)
Weight Net weight: 55 g approx., Gross weight: 80 g approx. Net weight: 35 g approx., Gross weight: 60 g approx.

Notes: 1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23℃ +73.4℉.
2) When the sensor is used as an ordinary sensor, the communication output (C/Q) provides the same output operation as the control output (DO).
3) In case of using the cable (cable length 2 m 6.562 ft).
4) This function increases the hysteresis. Check the sensing condition when using the function.

Return to top

If you have any questions, please select the option below to contact us or find answers.

Return to top

Please click your area to select country or region

Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)