LD28/LV28-LAS-F1-7675/47 Thru-beam sensor (pair)

Key Benefits at a Glance

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
Laser version for long ranges

Product photo: Thru-beam sensor (pair) LD28/LV28-LAS-F1-7675/47

Dimensions: Thru-beam sensor (pair) LD28/LV28-LAS-F1-7675/47

Connection Assignment: Thru-beam sensor (pair) LD28/LV28-LAS-F1-7675/47

Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Datasheet Classification Product Documentation Approvals Related Products

Technical data of LD28/LV28-LAS-F1-7675/47

Universal thru-beam sensor, large housing design, 120 m detection range, red laser light, laser class 2, 25 kHz transmission frequency, light/dark on, DC version, 2 complementary PNP outputs, test input, pre-fault output, M12 plug

Emitter		LD28-LAS-F1-7675
Receiver		LV28-LAS-F1-7675/47

Effective detection range

0 ... 120 m

Threshold detection range

150 m

Light source

laser diode

Light type

modulated visible red light

Laser nominal ratings

Note		LASER LIGHT , DO NOT STARE INTO BEAM
Laser class		2
Wave length		650 nm
Beam divergence		< 4 mrad
Pulse length		20 µs
Repetition rate		25 kHz
max. pulse energy		18 nJ

Alignment aid

LED red (in receiver lens)
illuminated constantly: beam is interrupted,
flashes: reaching switching point,
off: sufficient operating reserve

Diameter of the light spot

Approx. 20 mm at 5 m, approx. 75 mm x 300 mm at 70 m horizontal in relation to the housing axis

Opening angle

Emitter: 0.23 °
Receiver: 5 °

Ambient light limit

50000 Lux

MTTF_d		540 a
Mission Time (T_M)		20 a
Diagnostic Coverage (DC)		90 %

Operation indicator		LED green
Function indicator		LED yellow: 1. LED lit constantly: signal > 2 x switching point (operating 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

Operating voltage	U_B	10 ... 30 V DC
Ripple		10 %
No-load supply current	I₀	Emitter: ≤ 55 mA Receiver: ≤ 40 mA

Test input

emitter deactivation at +U_B

Stability alarm output		1 PNP transistor, short-circuit protected, reverse-polarity protected, open collector, Umax = 30 V DC, Imax = 0.2 A The output becomes inactive if the signal level has fallen below the operating 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	f	1000 Hz
Response time		0.5 ms

Product standard		EN 60947-5-2
Laser safety		EN 60825-1

Protection class		II, rated voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1
UL approval		cULus Listed , Class 2 power source
CCC approval		CCC approval / marking not required for products rated ≤36 V
FDA approval		IEC 60825-1:2007 Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007

Ambient temperature		0 ... 40 °C (32 ... 104 °F)
Storage temperature		-20 ... 75 °C (-4 ... 167 °F)

Degree of protection

IP67

Connection

5-pin, M12 x 1 plastic connector

Material

Housing		Plastic ABS
Optical face		Plastic pane

Mass

140 g (emitter and receiver)

Dimensions

Height		88 mm
Width		25.8 mm
Depth		54.3 mm

General Notes