Photoelectric sensors | W4 | WLA4SP-21311100ZZZ | Sensing range min. / max.: 0 m / 4 m | Functional principle: Photoelectric retro-reflective sensor | Functional principle detail: Without reflector minimum distance (autocollimation/coaxial optics) | Switching output: Push-pull: PNP/NPN | Switching mode: Dark switching | Connection type: Connector M8, 3-pin | Light source: PinPoint LED | Type of light: Visible red light | Housing material: VISTAL® | Adjustment: None | Housing: Rectangular
Functional principle
Photoelectric retro-reflective sensor
Functional principle detail
Without reflector minimum distance (autocollimation/coaxial optics)
Sensing range min.
0 m
Sensing range max.
4 m
Maximum distance range from reflector to sensor (operating reserve 1)
0 m ... 4 m
Recommended distance range from reflector to sensor (operating reserve 3,75)
0 m ... 2.6 m
Reference reflector
Reflector PL80
Recommended sensing range for the best performance
0 m ... 2.6 m
Polarisation filter
Yes
Light source
PinPoint LED
Type of light
Visible red light
Shape of light spot
Point-shaped
Light spot size (distance)
150 mm (5 m)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)
< +/- 1.5° (at TU= +23 °C)
Normative reference
EN 62471:2008-09 | IEC 62471:2006, modified
LED risk group marking
Free group
Wave length
635 nm
Average service life
100,000 h at Ta= +25 °C
None
–
LED blue
BluePilot: Alignment aid
LED green
Operating indicatorStatic on: power on
LED yellow
Status of received light beamStatic on: object not presentStatic off: object presentFlashing: Below the 1.5 function reserve
Special applications
Detecting objects wrapped in film
MTTFD
1,956 years
DCavg
0%
Supply voltage UB
10 V DC ... 30 V DC1)
Ripple
≤ 5 Vpp
Usage category
DC-12 (According to EN 60947-5-2)DC-13 (According to EN 60947-5-2)
Current consumption
≤ 20 mA, without load. At UB= 24 V
Protection class
III
Number
1
Type
Push-pull: PNP/NPN
Switching mode
Dark switching
Signal voltage PNP HIGH/LOW
Approx. UB-2.5 V / 0 V
Signal voltage NPN HIGH/LOW
Approx. UB/ < 2.5 V
Output current Imax.
≤ 100 mA
Circuit protection outputs
Reverse polarity protected
Response time
≤ 500 µs
Repeatability (response time)
150 µs
Switching frequency
1,000 Hz
Function of pin 4/black (BK)
Digital output, dark switching, object present → output Ǭ HIGH2)
Design detail
Slim
Dimensions (W x H x D)
12.1 mm x 41.9 mm x 18.6 mm
Connection
Connector M8, 3-pin
Housing
Plastic, VISTAL®
Front screen
Plastic, PMMA
Male connector
Plastic, VISTAL®
Maximum tightening torque of the fixing screws
0.4 Nm
Enclosure rating
IP66 (EN 60529)IP67 (EN 60529)
Ambient operating temperature
–40 °C ... +60 °C
Ambient temperature, storage
–40 °C ... +75 °C
Typ. Ambient light immunity
Artificial light: ≤ 50,000 lxSunlight: ≤ 50,000 lx
Shock resistance
30 g, 11 ms (3 positive and 3 negative shocks along X, Y, Z axes, 18 total shocks (EN60068-2-27))
Vibration resistance
10 Hz ... 1,000 Hz (Amplitude 1 mm, 3 x 30 min (EN60068-2-6))
Air humidity
35 % ... 95 %, relative humidity (no condensation)
Electromagnetic compatibility (EMC)
EN 60947-5-2
Resistance to cleaning agent
ECOLAB
UL File No.
NRKH.E181493 & NRKH7.E181493
EU declaration of conformity
✔
UK declaration of conformity
✔
ACMA declaration of conformity
✔
Moroccan declaration of conformity
✔
China RoHS
✔
cULus certificate
✔
ECLASS 5.1.4
27270903
ECLASS 6.0
27270903
ECLASS 7.0
27270903
ECLASS 8.0
27270903
ECLASS 9.0
27270903
ECLASS 10.0
27270903
ECLASS 11.0
27270903
ECLASS 12.0
27270903
ECLASS 13.0
27270903
ECLASS 14.0
27270903
ECLASS 15.0
27270903
ETIM 6.0
EC002719
ETIM 7.0
EC002719
ETIM 8.0
EC002719
ETIM 9.0
EC002719
ETIM 10.0
EC002719
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