Small photoelectric sensorsW12

Type:WLA12L-34162230A00

Part no.:
1126051

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Features

Functional principle

Photoelectric retro-reflective sensor

Functional principle detail

Without reflector minimum distance (autocollimation/coaxial optics)

Sensing range
Sensing range min.	0 m
Sensing range max.	11 m
Maximum distance range from reflector to sensor (operating reserve 1)	0 m … 11 m
Recommended distance range from reflector to sensor (operating reserve 3,75)	0 m … 7.5 m
Reference reflector	Reflector P250F
Recommended sensing range for the best performance	0 mm … 300 mm

Polarisation filters

Yes

Emitted beam
Light source	Laser
Type of light	Visible red light
Shape of light spot	Ellipse shape
Light spot size (distance)	0.3 mm x 0.2 mm (150 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)	< +/- 1.2° (at Ta = +23 °C)

Focus position

150 mm

Key laser figures
Normative reference	EN 60825-1:2014, IEC 60825-1:2014
Laser class	1
Wave length	655 nm
Pulse duration	4 µs
Maximum pulse power	< 2.13 mW
Average service life	50,000 h at T_U = +25 °C

Adjustment
Teach-in button	BluePilot: for sensitivity adjustment
IO-Link	For configuring the sensor parameters and Smart Task functions

Indication
LED blue	BluePilot: Alignment aid
LED green	Operating indicator Static on: power on Flashing: IO-Link mode
LED yellow	Status of received light beam Static on: object not present Static off: object present Flashing: Below the 1.5 function reserve

Special applications

Detecting small objects, Detection of objects moving at high speeds, Detecting objects wrapped in film

Safety-related parameters

MTTF_D 371 years

DC_avg 0 %

T_M (mission time)
10 years (EN ISO 13849)

Rate of use: 60 %

Communication interface

Communication interface	IO-Link V1.1
Communication Interface detail	COM2 (38,4 kBaud)
Cycle time	2.3 ms
Process data length	16 Bit
Process data structure	Bit 0 = switching signal Q_L1 Bit 1 = switching signal Q_L2 Bit 2 … 15 = Current receiver level (live)
VendorID	26
DeviceID HEX	0x8002DA
DeviceID DEC	8389338
Compatible master port type	A
SIO mode support	Yes

Electrical data

Supply voltage U_B

10 V DC … 30 V DC ¹⁾

Ripple

≤ 5 V

Usage category

DC-12 (According to EN 60947-5-2)

DC-13 (According to EN 60947-5-2)

Current consumption

≤ 14 mA, without load. At U_B = 24 V

Protection class

III

Digital output
Number	2 (Complementary)
Type	Push-pull: PNP/NPN
Signal voltage PNP HIGH/LOW	Approx. U_B-2.5 V / 0 V
Signal voltage NPN HIGH/LOW	Approx. U_B / < 2.5 V
Output current I_max.	≤ 100 mA
Circuit protection outputs	Reverse polarity protected
	Overcurrent protected
	Short-circuit protected
Response time	≤ 200 µs ²⁾
Repeatability (response time)	85 µs ²⁾
Switching frequency	2,500 Hz ³⁾

Pin/Wire assignment
BN 1	+ (L+)
WH 2	Ǭ_L1/MF Digital output, dark switching, object present → output Ǭ_L1 HIGH The pin 2 function of the sensor can be configured
	Additional possible settings via IO-Link
BU 3	– (M)
BK 4	QL1/C Digital output, light switching, object present → output Q_L1 LOW The pin 4 function of the sensor can be configured
	Additional possible settings via IO-Link

¹⁾ Limit values.
²⁾ Signal transit time with resistive load in switching mode.
³⁾ With light/dark ratio 1:1.

Mechanical data

Housing

Rectangular

Dimensions (W x H x D)

15.6 mm x 49.5 mm x 43.1 mm

Connection

Cable with M12 male connector, 4-pin, 31.5 cm

Connection detail
Deep-freeze property	Do not bend below 0 °C
Conductor size	0.14 mm²
Cable diameter	Ø 3.4 mm
Length of cable (L)	27.5 cm
Bending radius	For flexible use > 12 x cable diameter
Bending cycles	1,000,000

Material
Housing	Metal, zinc diecast
Front screen	Plastic, PMMA
Cable	PVC
Male connector	Plastic, VISTAL®

Weight

Approx. 94 g

Maximum tightening torque of the fixing screws

1.4 Nm

Ambient data

Enclosure rating	IP66 (EN 60529) IP67 (EN 60529) IP69 (EN 60529)
Ambient operating temperature	–20 °C … +55 °C
Ambient temperature, storage	–40 °C … +70 °C
Warm-up time	< 15 min, Where T_u is under –10 °C
Typ. Ambient light immunity	Artificial light: ≤ 50,000 lx Sunlight: ≤ 50,000 lx
Shock resistance	50 g, 11 ms (25 positive and 25 negative shocks along X, Y, Z axes, 150 total shocks (EN60068-2-27))
Vibration resistance	10 Hz … 2,000 Hz (Amplitude 0.5 mm / 10 g, 20 sweeps per axis, for X, Y, Z axes, 1 octave/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

Smart Task

Smart Task name

Base logics

Logic function

Direct

AND

Timer function

Deactivated

On delay

Off delay

ON and OFF delay

Impulse (one shot)

Inverter

Yes

Switching frequency

SIO Logic: 2000 Hz ¹⁾

IOL: 1600 Hz ²⁾

Response time

SIO Logic: 250 µs ¹⁾

IOL: 300 µs ²⁾

Repeatability

SIO Logic: 120 µs ¹⁾ ²⁾

Switching signal
Switching signal Q_L1	Switching output
Switching signal Ǭ_L1	Switching output

¹⁾ Use of Smart Task functions without IO-Link communication (SIO mode).
²⁾ Use of Smart Task functions with IO-Link communication function.

Diagnosis

Device temperature
Measuring range	Very cold, cold, moderate, warm, hot

Device status

Yes

Detailed device status

Yes

Operating hour counter

Yes

Operating hours counter with reset function

Yes

Quality of teach

Yes

Quality of run

Yes, Contamination display

Classifications

eCl@ss 5.0	27270902
eCl@ss 5.1.4	27270902
eCl@ss 6.0	27270902
eCl@ss 6.2	27270902
eCl@ss 7.0	27270902
eCl@ss 8.0	27270902
eCl@ss 8.1	27270902
eCl@ss 9.0	27270902
eCl@ss 10.0	27270902
eCl@ss 11.0	27270902
eCl@ss 12.0	27270902
ETIM 5.0	EC002717
ETIM 6.0	EC002717
ETIM 7.0	EC002717
ETIM 8.0	EC002717
UNSPSC 16.0901	39121528