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Specifications
Mfr. Part #:
BW20-24
Key Attributes
Model Number:
BW20-24
Product Description
Product Overview
The D-44 BW Series Area Sensor is a through-beam type photoelectric 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, while high-brightness LEDs on both the emitter and receiver ensure easy recognition from various angles and distances. This sensor includes essential functions such as self-diagnosis, mutual interference prevention, and external diagnosis, and boasts an IP65 protection structure for robust environmental resistance.
Product Attributes
- Brand: Autonics
- Protection Structure: IP65 (IEC standard)
- Case Material: Aluminum
- Front Cover/Sensing Part Material: Acrylic
- Light Source: Infrared LED (850nm modulated)
- 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 | Protection Circuit | Insulation Resistance | Synchronization Type | Interference Protection | Noise Immunity | Dielectric Strength | Vibration | Shock | Ambient Illumination | Ambient Temperature | Ambient Humidity | Cable | Accessory | Weight (Unit Only) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BW20-(P) / BW40-(P) | Through-beam type | 0.1 to 7m | BW20: Opaque material of min. 30mm BW40: Opaque material of min. 50mm | BW20: 20mm BW40: 40mm | BW20: 8 to 48 BW40: 4 to 24 | BW20: 140 to 940mm BW40: 120 to 920mm | 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 | Reverse polarity protection circuit, output short over current protection circuit | Over 20M (at 500VDC megger) | Timing method by synchronous line | 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 | Bracket A: 4, Bracket B: 4, Bolt : 8 | Approx. 1.4kg |
| BW20-48(P) | - | - | - | 20mm | 48 | 940mm | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Approx. 1.4kg |
| BW40-24(P) | - | - | - | 40mm | 24 | 920mm | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Approx. 1.4kg |
Ordering Information
| Item | Optical axis pitch | Number of optical axis | Control output |
|---|---|---|---|
| BW | 20mm (20) / 40mm (40) | 04 to 48 | No mark: NPN open collector output P: PNP open collector output |
Dimensions
Emitter/Receiver Dimensions:
| Model | L (mm) | A (mm) | B (mm) |
|---|---|---|---|
| BW20-08(P) | 160 | 20 | 26.6 |
| BW40-04(P) | 160 | 40 | 28.6 |
| BW20-12(P) | 240 | 20 | 22.6 |
| BW40-06(P) | 240 | 40 | 28.6 |
| BW20-16(P) | 320 | 20 | 22.6 |
| BW40-08(P) | 320 | 40 | 28.6 |
| BW20-20(P) | 400 | 20 | 22.6 |
| BW40-10(P) | 400 | 40 | 28.6 |
| BW20-24(P) | 480 | 20 | 22.6 |
| BW40-12(P) | 480 | 40 | 28.6 |
| BW20-28(P) | 560 | 20 | 22.6 |
| BW40-14(P) | 560 | 40 | 28.6 |
| BW20-32(P) | 640 | 20 | 22.6 |
| BW40-16(P) | 640 | 40 | 28.6 |
| BW20-36(P) | 720 | 20 | 22.6 |
| BW40-18(P) | 720 | 40 | 28.6 |
| BW20-40(P) | 800 | 20 | 22.6 |
| BW40-20(P) | 800 | 40 | 28.6 |
| BW20-44(P) | 880 | 20 | 22.6 |
| BW40-22(P) | 880 | 40 | 28.6 |
| BW20-48(P) | 960 | 20 | 22.6 |
| BW40-24(P) | 960 | 40 | 28.6 |
(Refer to original document for visual diagrams of dimensions, brackets, and operation indicators)
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 |
|---|---|---|
| Green | POWER | Stable light ON |
| Yellow | - | Unstable |
| Red | TEST (M/S) | Stable light OFF |
Functions
- Self-diagnosis: Emitter/Receiver monitoring, direct light monitoring, over current monitoring. Control output turns OFF and operation indicator displays status upon error.
- Interference Protection: Master/slave function to prevent sensing errors when using multiple sensors in parallel.
- External Diagnosis: When TEST input (black) of emitter is 0V, emitting stops, and the red LED of the emitter flashes, allowing external systems to verify sensor operation.
Troubleshooting
| Cause | Troubleshooting |
|---|---|
| Not operating |
|
| Not operating sometimes |
|
| Control output is OFF even though there is no target object. |
|
| LED displays for break of light emitting element | Break of light emitting element |
| 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. |
| LED displays for control output over current |
|
| LED displays for emitter malfunction | Emitter malfunction: Treat after checking the emitter display LED. |
Proper Usage
- Follow instructions in 'Proper Usage'. Otherwise, it may cause unexpected accidents.
- 12-24VDC power supply should be insulated and limited voltage/current or Class 2, SELV power supply device.
- Use the product 1 second after supplying power. When using a separate power supply for the sensor and load, supply power to the sensor first.
- When using a switching mode power supply to supply the power, 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.
- This unit may be used in the following environments:
Indoors (in the environment condition rated in 'Specifications')
Altitude max. 2,000m
Pollution degree 2
Installation category II
2411220420_Autonics-BW20-24_C17202894.pdf
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