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Robust ip65 through beam sensor Autonics BW20-48P with aluminum case and advanced external diagnosis

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Robust ip65 through beam sensor Autonics BW20-48P with aluminum case and advanced external diagnosis

Description : Accelerometers RoHS

Mfr. Part # : BW20-48P

Model Number : BW20-48P

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Product Overview

The D-44 BW Series Area Sensor is a high-performance through-beam type sensor designed for long-distance detection up to 7 meters. It offers a wide range of configurations with 22 product types, featuring optical axis pitches of 20mm or 40mm and sensing heights from 120mm to 940mm. The 20mm optical axis pitch minimizes unsensing areas, making it ideal for precise detection. High-brightness LEDs on both the emitter and receiver ensure easy recognition from various angles and distances. The sensor includes advanced functions such as self-diagnosis, mutual interference prevention, and external diagnosis. Its robust IP65 protection structure (IEC standard) makes it suitable for demanding industrial environments.

Product Attributes

Brand: Autonics
Product Series: BW Series
Protection Structure: IP65 (IEC standard)
Material: Case: aluminum; Front cover, sensing part: acrylic
Approvals:

Technical Specifications

Model	Sensing Method	Sensing Distance	Min. Sensing Target	Optical Axis Pitch	Number of Optical Axis	Sensing Height	Response Time	Power Supply	Current Consumption	Operation Mode	Control Output	Light Source	Insulation Resistance	Synchronization Type	Protection Circuit	Interference Protection	Noise Immunity	Dielectric Strength	Vibration	Shock	Ambient Illumination	Ambient Temperature	Ambient Humidity	Cable	Weight (Unit Only)
BW20-(P)	Through-beam type	0.1 to 7m	Opaque material of min. 30mm	20mm	8 to 48	140 to 940mm	Max. 10ms	12-24VDC 10% (ripple P-P: max. 10%)	Emitter: max. 120mA, Receiver: max. 120mA	Light ON fixed	NPN or PNP open collector output Load voltage: max. 30VDC Load current: max. 100mA Residual voltage - NPN: max. 1VDC, PNP: max. 2.5VDC	Infrared LED (850nm modulated)	Over 20M (at 500VDC megger)	Timing method by synchronous line	Reverse polarity protection circuit, output short over current protection circuit	Interference protection by master/slave function	240V the square wave noise (pulse width 1) by the noise simulator	1,000VAC 50/60Hz for 1 min	1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours	500m/s (approx. 50G) in each X, Y, Z direction for 3 times	Max. 100,000lx (receiver illumination)	-10 to 55, storage: -20 to 60	35 to 85%RH, storage: 35 to 85%RH	5mm, 4-wire, 300mm, M12 connector	Approx. 1.4kg
BW40-(P)	Through-beam type	0.1 to 7m	Opaque material of min. 50mm	40mm	4 to 24	120 to 920mm	Max. 10ms	12-24VDC 10% (ripple P-P: max. 10%)	Emitter: max. 120mA, Receiver: max. 120mA	Light ON fixed		Infrared LED (850nm modulated)	Over 20M (at 500VDC megger)	Timing method by synchronous line		Interference protection by master/slave function		1,000VAC 50/60Hz for 1 min		500m/s (approx. 50G) in each X, Y, Z direction for 3 times	Max. 100,000lx (receiver illumination)	-10 to 55, storage: -20 to 60	35 to 85%RH, storage: 35 to 85%RH	5mm, 4-wire, 300mm, M12 connector	Approx. 1.4kg
Model	Optical axis pitch	Number of optical axis	Sensing height											Weight (Total)	Weight (Unit Only)
BW20-48(P)	20mm	48	940mm											Approx. 2.1kg	Approx. 1.4kg
BW40-24(P)	40mm	24	920mm											Approx. 2.1kg	Approx. 1.4kg

Features

Long sensing distance up to 7m.
22 types of products available (optical axis: 20/40mm, sensing height: 120 to 940mm).
Minimizes unsensing area with 20mm optical axis pitch (BW20- models).
High brightness LED on emitter and receiver for easy recognition from side, front, and long-distance.
Includes self-diagnosis, mutual interference prevention, and external diagnosis functions.
Protection structure IP65 (IEC standard).

Ordering Information

BW Cross-beam area sensor

Item	Optical axis pitch	Number of optical axis
No mark	NPN open collector output	04 to 48
P	PNP open collector output	4 to 48
20	20mm
40	40mm
BW
BW20
BW40
BW20-08(P)		8
BW40-04(P)		4

Input/Output Circuit and Connections

Wiring Connection

Pin No.	Cable color (Emitter)	Emitter	Cable color (Receiver)	Receiver
1	Brown	12-24VDC	Brown	12-24VDC
2	White	SYNC	White	SYNC
3	Blue	0V	Blue	0V
4	Black	TEST (M/S)	Black	OUT

Operation Indicator

LED color	Emitter	Receiver	Display classification list
Green	POWER		Light ON
Yellow		Stable light ON	Light ON
Red	TEST (M/S)	Unstable	Flashing by 0.5 sec or Flashing simultaneously by 0.5 sec

Connections for TEST input

Emitter (black)	TEST	Receiver (black)	OUT
0V	OFF (contact relay)		ON
	ON	OFF (contact relay)	OFF

MASTER/SLAVE connections

MASTER	SLAVE
Emitter	Receiver
Cable	Cable
Emitter	Receiver

Functions

Self-diagnosis: Emitter/Receiver monitoring, direct light monitoring, over current monitoring.
Interference protection: By master/slave function to prevent sensing errors when using multiple sensors.
External diagnosis: When TEST input (black) of emitter is 0V, emitting stops, and the red LED of the emitter flashes, allowing external system confirmation of sensor operation.

Dimensions

Emitter

Model L A, B

BW20-08(P) 160 20

BW20-12(P) 240

BW20-16(P) 320

BW20-20(P) 400

BW20-24(P) 480

BW20-28(P) 560

BW20-32(P) 640

BW20-36(P) 720

BW20-40(P) 800

BW20-44(P) 880

BW20-48(P) 960

Receiver

Model L A, B

BW40-04(P) 160 40

BW40-06(P) 240

BW40-08(P) 320

BW40-10(P) 400

BW40-12(P) 480

BW40-14(P) 560

BW40-16(P) 640

BW40-18(P) 720

BW40-20(P) 800

BW40-22(P) 880

BW40-24(P) 960

Dimensions for Emitter and Receiver are provided in mm, showing 20, 2-R1.7, 16, 50, 25, 2, 2-4.4, 10, 15, 18, 26.6, 28.6, 22.6 for BW20, and 20, 2-R1.7, 19, 50, 32, 2, 2-4.4, 10, 2.3, 10, 15, 28.6, 22.6 for BW40. M12 connector and 5 cable are also indicated.

Proper Usage

Follow instructions in 'Proper Usage'.
Use 12-24VDC power supply that is insulated and limited voltage/current or Class 2, SELV.
Use the product 1 second after supplying power. If using separate power supplies, power the sensor first.
When using a switching mode power supply, ground F.G. terminal and connect a condenser between 0V and F.G. terminal to remove noise.
When connecting a DC relay or other inductive load, remove surge by using diodes or varistors.
Wire as short as possible and keep away from high voltage lines or power lines to prevent surge and inductive noise.
Suitable for indoor use (within rated environment conditions), altitude max. 2,000m, pollution degree 2, and installation category II.

Troubleshooting

Troubleshooting	Cause	Solution
Not operating	Power supply	Supply the rated power.
	Incorrect cable connection or disconnection	Check the wiring.
	Rated connection failure	Use it within rated sensing distance.
Not operating sometimes	Pollution by dirt of sensor cover	Remove dirt by soft brush or cloth.
	Connector connection failure	Check the assembled part of the connector.
Control output is OFF even though there is no target object.	Out of rated sensing distance	Use within the rated sensing distance.
	There is an obstacle to cut off the light emitted between emitter and receiver	Remove the obstacle.
	There is a strong electric wave or noise generated by motor, electric generator, high voltage line etc.	Put away the strong electric wave or noise generator.
LED displays for break of light emitting element	Break of light emitting element	Contact Autonics Corp.
LED displays for failure of emitter	Break of light emitting circuit
LED displays for failure of receiver	Break of light receiving element
LED displays for synchronous line	Synchronous line incorrect connection or disconnection	Check the wiring.
	Break of synchronous circuit of emitter or receiver	Contact Autonics Corp.
LED displays for control output over current	Control output line is shorten	Check the wiring.
	Over load	Check the rated load capacity.
LED displays for emitter malfunction	Emitter malfunction	Treat after checking the emitter display LED.

2411220420_Autonics-BW20-48P_C17650252.pdf

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