Pepperl+Fuchs LD28/LV28-F1-3974/47/82b/112 205836

Manufacturer

Pepperl+Fuchs

Name

LD28/LV28-F1-3974/47/82b/112

Part number

205836

Country

Germany

Type

Thru-Beam Sensor

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Product Description
Universal thru-beam sensor, large housing design, 30 m detection range, red light, 25 kHz transmission frequency, light/dark on, DC version, 2 PNP outputs, test input, pre-fault output, M12 plug

System components
Emitter	LD28-F1-3974/76a/112
Receiver	LV28-F1-3974/47/82b/112
General specifications
Effective detection range	0 ... 30 m
Threshold detection range	40 m
Light source	LED
Light type	modulated visible red light , 660 nm
Alignment aid	LED red (in receiver lens) illuminated constantly: beam is interrupted, flashes: reaching switching point, off: sufficient stability control
Transmitter frequency	F1 = 25 kHz
Diameter of the light spot	approx. 0.6 m at 30 m
Angle of divergence	Emitter 1.2°, Receiver 5°
Ambient light limit	50000 Lux
Functional safety related parameters
MTTFd	620 a
Mission Time (TM)	20 a
Diagnostic Coverage (DC)	90 %
Indicators/operating means
Operation indicator	LED green
Function indicator	LED 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
Control elements	sensitivity adjustment (Adjustment to < 25% of the effective operating range) , Light-on/dark-on changeover switch
Electrical specifications
Operating voltage	10 ... 30 V DC
Ripple	10 %
No-load supply current	Emitter: &le, 50 mA Receiver: &le, 35 mA
Input
Test input	emitter deactivation at +UB (Imax. < 3 mA at 30 V DC)
Output
Pre-fault indication output	1 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.
Switching type	light/dark on switchable
Signal output	2 PNP, complementary, short-circuit protected, reverse polarity protected , open collectors
Switching voltage	max. 30 V DC
Switching current	max. 200 mA
Switching frequency	1000 Hz
Response time	0.5 ms
Conformity
Product standard	EN 60947-5-2
Approvals and certificates
EAC conformity	TR CU 020/2011
UL approval	cULus
CCC approval	CCC approval / marking not required for products rated &le,36 V
Ambient conditions
Ambient temperature	-40 ... 60 °C (-40 ... 140 °F)
Storage temperature	-40 ... 75 °C (-40 ... 167 °F)
Mechanical specifications
Housing width	25.8 mm
Housing height	88 mm
Housing depth	65.5 mm
Degree of protection	IP67
Connection	Metal connector, M12, 5-pin, 90° rotatable
Material
	Housing	Plastic ABS
	Optical face	Plastic pane
Mass	140 g (emitter and receiver)