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Part Number:1218666
Photoelectric Sensor Model: WTB26P-24161120A00
OEM Spec Ref

Features

Device type

Photoelectric sensors

Functional principle

Photoelectric proximity sensor

Functional principle detail

Background suppression

Sensing range
Sensing range min.	30 mm
Sensing range max.	1,600 mm
Adjustable switching threshold for background suppression	180 mm … 1,600 mm
Reference object	Object with 90 % reflectance (referred to standard white, DIN 5033)
Minimum distance between set sensing range and background (black 6% / white 90%)	40 mm (at a distance of 600 mm)
Recommended sensing range for the best performance	200 mm … 600 mm

Emitted beam
Light source	PinPoint LED
Type of light	Visible red light
Shape of light spot	Point-shaped
Light spot size (distance)	Ø 7 mm (700 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)	< +/- 1.0° (at Ta = +23 °C)

Key LED figures
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 T_a = +25 °C

Adjustment
Teach-Turn adjustment	BluePilot: For setting the sensing range
IO-Link	For configuring the sensor parameters and Smart Task functions

Indication
LED blue	BluePilot: sensing range indicator
LED green	Operating indicator Static on: power on Flashing: IO-Link mode
LED yellow	Status of received light beam Static on: object present Static off: object not present

Communication interface

IO-Link	✔ , V1.1
Data transmission rate	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 = empty
VendorID	26
DeviceID HEX	0x800178
DeviceID DEC	8388984
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_pp

Usage category

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

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

Current consumption

≤ 30 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 and short-circuit protected
Response time	≤ 500 µs ²⁾
Repeatability (response time)	150 µs
Switching frequency	1,000 Hz ³⁾

Pin/Wire assignment
Function of pin 4/black (BK)	Digital output, light switching, object present → output Q_L1 HIGH; IO-Link communication C
Function of pin 4/black (BK) – detail	The pin 4 function of the sensor can be configured, Additional possible settings via IO-Link
Function of pin 2/white (WH)	Digital output, dark switching, object present → output Ǭ_L1 LOW
Function of pin 2/white (WH) – detail	The pin 2 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)

24.6 mm x 82.5 mm x 53.3 mm

Connection

Male connector M12, 4-pin

Material
Housing	Plastic, VISTAL®
Front screen	Plastic, PMMA
Male connector	Plastic, VISTAL®

LABS-free

Yes (VDMA 24364-A1-L)

Weight

Approx. 80 g

Maximum tightening torque of the fixing screws

1.3 Nm

Ambient Data

Enclosure rating	IP66 (EN 60529) IP67 (EN 60529) IP69 (EN 60529) ¹⁾
Ambient operating temperature	–40 °C … +60 °C
Ambient temperature, storage	–40 °C … +75 °C
Shock resistance	50 g, 11 ms (25 positive and 25 negative shocks per axis, for X, Y, Z axes, 150 shocks in total (EN60068-2-27)) 50 g, 6 ms (5,000 positive and 5,000 negative shocks per axis, for X, Y, Z axes, 30,000 shocks in total (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