Pepperl+Fuchs LD28/LV28-F1-3057/35/47/115b
Thru-beam sensor

Pepperl+Fuchs LD28/LV28-F1-3057/35/47/115b
  • Ultra bright LEDs for power on, weak signal indication and switching state
  • Highly visible LED as alignment aid in receiver optics
  • Delivery status: Light on switching
  • Emitter deactivation
  • Various transmitter frequencies
  • Not sensitive to ambient light, even with switched energy saving lamps
  • Waterproof, degree of protection IP67
  • Protection class II
Item Number: LD28/LV28-F1-3057/35/47/115b
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MTTFd620 a
Operating voltage10 ... 30 V DC
Function indicatorLED yellow:
1. LED lit constantly: signal > 2 x switching point (function reserve)
2. LED flashes: signal between 1 x switching point and 2 x switching point
3. LED off: signal < switching point
Mission Time (TM)20 a
Light typemodulated visible red light , 660 nm
Effective detection range0 ... 65 m
Switching frequency25 Hz
Diagnostic Coverage (DC)90 %
CCC approvalCCC approval / marking not required for products rated ≤36 V
EmitterLD28-F1-3057/35/76a/115b
Light sourceLED
Switching currentmax. 200 mA
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
UL approvalcULus
Ambient temperature-40 ... 60 В°C (-40 ... 140 В°F)
Housing width25.8 mm
Protection classII, rated voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1
Test inputemitter deactivation at +UB (Imax. < 3 mA at 30 V DC)
Switching typelight/dark on , preset to light on
Angle of divergenceEmitter 1.2В°,
Receiver 5В°
Mass500 g (emitter and receiver)
Threshold detection range90 m
Operation indicatorLED green, flashes in case of short-circuit
Product standardEN 60947-5-2
Ambient light limit50000 Lux
No-load supply currentEmitter: ≤ 50 mA
Receiver: ≤ 35 mA
Response time20 ms
Ripple10 %
Diameter of the light spotapprox. 1.3 m at 65 m
Housing height88 mm
Storage temperature-40 ... 75 В°C (-40 ... 167 В°F)
ReceiverLV28-F1-3057/35/47/115b
Signal output2 PNP, complementary, short-circuit protected, reverse polarity protected , open collectors
Control elementssensitivity adjustment
Housing depth54.3 mm
Transmitter frequencyF1 = 25 kHz
Degree of protectionIP67
Switching voltagemax. 30 V DC
Connectionfixed cable 230 mm with M12 x 1 male connector, 4-pin

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