Pepperl+Fuchs LD28/LV28-Z-F1/47/76a/82b/112 Thru-beam sensor

Pepperl+Fuchs LD28/LV28-Z-F1/47/76a/82b/112
Item Number: LD28/LV28-Z-F1/47/76a/82b/112
  • 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
  • Programmable time function GAN, GAB, IAB as well as GAN-IAB and GAN-GAB as double function
  • Emitter with test input
  • Version with red light
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  • Overview
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  • Comments
Degree of protectionIP67
Angle of divergenceEmitter 1.2В°,
Receiver 5В°
Mission Time (TM)20 a
Effective detection range0 ... 30 m
Control elementssensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Housing depth65.5 mm
Switching currentmax. 2 A
Mass140 g (emitter and receiver)
Diagnostic Coverage (DC)90 %
Switching typelight/dark on, switchable
UL approvalcULus Listed , Class 2 power source
Protection classII, rated voltage 250 V AC with pollution degree 1-2 according to IEC 60664-1 Output circuit basis insulation of input circuit according to EN 50178, rated insulation voltage 230 V AC Caution!
The protection class 2 is only valid when the terminal compartment is closed.
Test inputemitter deactivation at +UB (Imax. < 3 mA at 30 V DC)
Housing width25.8 mm
Connection5-pin, M12 x 1 connector
Signal output2 PNP, complementary, short-circuit protected, reverse polarity protected , open collectors
Response time0.5 ms
Light sourceLED
Housing height88 mm
Ripple10 %
Product standardEN 60947-5-2
Storage temperature-40 ... 75 В°C (-40 ... 167 В°F)
Diameter of the light spotapprox. 0.6 m at 30 m
No-load supply currentEmitter: 50 mA
Receiver: 35 mA
Threshold detection range40 m
CCC approvalCCC approval / marking not required for products rated 36 V
Transmitter frequencyF1 = 25 kHz
MTTFd620 a
Switching frequency1000 Hz
Operating voltage10 ... 30 V DC
Switching voltagemax. 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
Operation indicatorLED green
Ambient temperature-40 ... 60 В°C (-40 ... 140 В°F)
Timer functionON delay (GAN), OFF delay (GAB), one shot (IAB), ON delay-one shot (GAN-IAB), ON delay-OFF delay (GAN-GAB), programmable
adjustment interval 0.02 s ... 1 s
Ambient light limit50000 Lux
Alignment aidLED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient stability control
Light typemodulated visible red light
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.


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