Pepperl+Fuchs LD28/LV28-F2/49/76a/82b/105 Thru-beam sensor

Pepperl+Fuchs LD28/LV28-F2/49/76a/82b/105
Item Number: LD28/LV28-F2/49/76a/82b/105
  • Ultra bright LEDs for power on, weak signal indication and switching state
  • Highly visible LED as alignment aid in receiver optics
  • Emitter deactivation
  • Various transmitter frequencies
  • Not sensitive to ambient light, even with switched energy saving lamps
  • Waterproof, degree of protection IP67
  • Protection class II
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Threshold detection range40 m
CCC approvalCCC approval / marking not required for products rated 36 V
Housing height88 mm
Product standardEN 60947-5-2
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
Ripple10 %
Transmitter frequencyF2 = 30 kHz
Test inputemitter deactivation at +UB (Imax. < 3 mA at 30 V DC)
Ambient light limit50000 Lux
Mass140 g (emitter and receiver)
Protection classII, rated voltage 250 V AC with pollution degree 1-2 according to IEC 60664-1
UL approvalcULus
Switching voltagemax. 30 V DC
Ambient temperature-40 ... 60 В°C (-40 ... 140 В°F)
MTTFd620 a
Connection5-pin, M12 x 1 plastic connector
Diameter of the light spotapprox. 0.6 m at 30 m
Operation indicatorLED green
Light sourceLED
Switching typelight/dark on, switchable
No-load supply currentEmitter: 50 mA
Receiver: 35 mA
Signal output1 NPN, 1 PNP synchronized-switching, short-circuit protected, reverse polarity protected , open collectors
Degree of protectionIP67
Angle of divergenceEmitter 1.2В°,
Receiver 5В°
Diagnostic Coverage (DC)90 %
Pre-fault indication output1 PNP transistor, short-circuit protected, protected from reverse polarity, open collector, Umax = 30 V DC, Imax = 0.2 A
The output becomes inactive if the signal level has fallen below the function reserve for approx. 10 s (yellow and red LEDs flash).
If the light beam is interrupted four times during this period, the output immediately becomes inactive.
Housing depth54.3 mm
Effective detection range0 ... 30 m
Switching frequency1000 Hz
Response time0.5 ms
Housing width25.8 mm
Switching currentmax. 200 mA
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
Operating voltage10 ... 30 V DC
Mission Time (TM)20 a
Storage temperature-40 ... 75 В°C (-40 ... 167 В°F)
Control elementssensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Light typemodulated visible red light , 660 nm


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