Pepperl+Fuchs LD28/LV28-F1/49/74/76a Thru-beam sensor

Pepperl+Fuchs LD28/LV28-F1/49/74/76a
Item Number: LD28/LV28-F1/49/74/76a
  • Universal series with highly versatile fields of use
  • Resistant against noise: reliable operation under all conditions
  • Highly visible LED as alignment aid in receiver optics
  • Emitter with test input
  • Version with red light
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Ambient temperature-40 ... 60 В°C (-40 ... 140 В°F)
Housing depth54.3 mm
Switching currentmax. 200 mA
Light typemodulated visible red light , 660 nm
CCC approvalCCC approval / marking not required for products rated 36 V
Test inputemitter deactivation at +UB (Imax. < 3 mA at 30 V DC)
Connection4-pin, M18 plastic connector
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
UL approvalcULus Listed , Class 2 power source
Transmitter frequencyF1 = 25 kHz
Ambient light limit50000 Lux
EmitterLD28-F1/74/76a
Storage temperature-40 ... 75 В°C (-40 ... 167 В°F)
Light sourceLED
MTTFd620 a
Signal output1 NPN, 1 PNP synchronized-switching, short-circuit protected, reverse polarity protected , open collectors
Control elementssensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Diameter of the light spotapprox. 0.6 m at 30 m
Operating voltage10 ... 30 V DC
Response time0.5 ms
Operation indicatorLED green
Ripple10 %
Protection classII, rated voltage 250 V AC with pollution degree 1-2 according to IEC 60664-1
Housing height88 mm
Switching frequency1000 Hz
Housing width25.8 mm
No-load supply currentEmitter: 50 mA
Receiver: 35 mA
Threshold detection range40 m
Mass140 g (emitter and receiver)
Product standardEN 60947-5-2
Angle of divergenceEmitter 1.2В°,
Receiver 5В°
Effective detection range0 ... 30 m
Mission Time (TM)20 a
Switching voltagemax. 30 V DC
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
ReceiverLV28-F1/49/74
Degree of protectionIP67
Switching typelight/dark on, switchable
Diagnostic Coverage (DC)90 %

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