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 models with varying optical axis pitches (20mm and 40mm) and sensing heights (120mm to 940mm), minimizing unsensing areas. Featuring high-brightness LEDs for clear visibility from multiple angles and distances, this sensor includes essential functions like self-diagnosis, mutual interference prevention, and external diagnosis. Its robust IP65 protection structure makes it suitable for demanding industrial environments.

Product Attributes

• Brand: Autonics (implied by product numbering and context)
• Product Line: BW Series Area Sensor
• Sensing Method: Through-beam type
• Protection Structure: IP65 (IEC standard)
• Case Material: Aluminum
• Front Cover/Sensing Part Material: Acrylic
• Light Source: Infrared LED (850nm modulated)
• Operation Mode: Light ON fixed
• Approvals: (symbol present)

Technical Specifications

Ordering Information

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-)
• Easy to recognize at side, front, and long-distance by high brightness LED of Emitter and Receiver
• Includes self-diagnosis function, mutual interference prevention function, external diagnosis function

Dimensions

(Diagrams for Emitter, Receiver, Bracket A, Bracket B are present in the source but cannot be represented in text format.)

Input/Output Circuit and Connections

Operation mode: Light ON fixed

Control Output: NPN or PNP open collector output

• Load voltage: max. 30VDC
• Load current: max. 100mA
• Residual voltage - NPN: max. 1VDC, PNP: max. 2.5VDC

Protection Circuit: Reverse polarity protection circuit, output short over current protection circuit

Synchronization type: Timing method by synchronous line

Wiring Connections:

• Emitter/Receiver Pinout: 1 (Brown: +V), 2 (White: SYNC), 3 (Blue: 0V), 4 (Black: TEST (M/S) / OUT)
• Main Circuit Connections for Emitter and Receiver are detailed for NPN and PNP outputs.

Operation Indicator

Functions

• Self-diagnosis: Emitter/Receiver monitoring, direct light monitoring, over current monitoring. Control output turns OFF if an error occurs, and the operation indicator displays the status.
• Interference protection: Operates a sensor as MASTER and another as SLAVE to avoid sensing errors caused by light interference 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

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 sec after supplying power. When using separate power supply for the sensor and load, supply power to sensor first.
• When using 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