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Specifications
Mfr. Part #:
BW20-48P
Key Attributes
Model Number:
BW20-48P
Product Description
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) | Opaque material of min. 50mm | 40mm | 4 to 24 | 120 to 920mm | 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 | Control output |
|---|---|---|---|
| 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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