Autonics BW Series - User Manual

-|Transparent Guide|-
TCD210006AC
󹮺󹮳󹮳
BW Series
󹮳
For your safety, read and follow the considerations written in the instruction
manual, other manuals and Autonics website.
󹮳󹃗󹮹󹮳󹮹󹮳󹮻󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳
󹮻󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
Features
󹮳 󹮳󹮳󹮳󹮳󹮳󹮺󹮳󹮳󹮷󹮺󹮸
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳
󹮳 󹮳󹃗󹮳󹮷󹮳󹮳󹮳󹮽󹮳󹮳󹮳󹮼󹮳󹮳󹮽󹮳󹮹󹮳󹮳󹮳󹮼󹮳
󹮳󹮽󹮳󹮳󹮳󹮳󹮸
󹮳 󹮳󹮳󹮳󹮹󹮳󹮺󹮳󹮹󹮳󹮳󹮳

󹮳 󹮳󹮳󹮳󹮳󹮳󹮳
󹮳 󹮳󹮳󹮽󹮳󹮹󹮳󹮷󹮳󹮸
󹮳 󹮳󹮳󹮳󹮷󹮳󹮸
󹮳󹮳
Safety Considerations
󹮳 󹮳󹮳󹯆󹮳󹯇󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
᜸ Warning󹮳󹮳
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
01. Fail-safe device must be installed when using the unit with machinery that
may cause serious injury or substantial economic loss. (e.g. nuclear power
control, medical equipment, ships, vehicles, railways, aircraft, combustion
apparatus, safety equipment, crime/disaster prevention devices, etc.)
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮹󹮳󹮳󹮳󹮳
󹃗󹮻
02. Do not use the unit in the place where 󹃙ammable/explosive/corrosive gas,
high humidity, direct sunlight, radiant heat, vibration, impact, or salinity
may be present.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮻
03. Do not connect, repair, or inspect the unit while connected to a power
source.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮻
04. Check 'Connections' before wiring.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮻
05. Do not disassemble or modify the unit.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮻
06. This product is not safety sensor and does not observe any domestic nor
international safety standard.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮹󹮳󹮳
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
᜸ Caution󹮳󹮳
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
01. Use the unit within the rated speci󹃘cations.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮳󹮳󹮳󹮻
02. Use a dry cloth to clean the unit, and do not use water or organic solvent.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮻
03. Do not use a load over the range of rated relay speci󹃘cation.
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹃗󹮹󹮳󹮳󹮹󹮳󹮳󹮹󹮳
󹮳󹮳󹮳󹮳󹮻
Cautions during Use
󹮳 󹮳󹮳󹮳󹮶󹮳󹮳󹮶󹮻󹮳󹮹󹮳󹮳󹮳󹮳󹮳
󹮻
󹮳 󹮳󹮺󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮼󹮳󹮳󹮳
󹮹󹮳󹮳󹮳󹮳󹮻
󹮳 󹮳󹮳󹮹󹮳󹮳󹮳󹮳󹮳󹮻󹮳󹮳󹮳󹮳󹮳󹮳󹮳
󹮳󹮳󹮳󹮹󹮳󹮳󹮳󹮳󹮳󹃗󹮻
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮹󹮳󹮳󹮻󹮻󹮳󹮳
󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻󹮻󹮳󹮳󹮳󹮳󹮻󹮳
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮹󹮳󹮳󹮳󹮳󹮳󹮳
󹮳󹮻󹮳
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮹󹮳󹮳
󹮳󹮳󹮳󹮳󹮻
󹮳 󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮳󹮻
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Summary

Safety Considerations

General Hazard Warnings

Observe general safety considerations for safe operation to avoid hazards and prevent injury or death.

Specific Usage Warnings

Warnings for hazardous environments, power connection, disassembly, and non-safety sensor use.

Cautionary Guidelines

Cautions on rated specifications, cleaning methods, and load limits to prevent damage or fire.

Cautions during Installation

Product Specifications

Technical Specifications Summary

Comprehensive list of technical specs including sensing method, distance, power, and protection ratings.

Key Functions

Interference Protection Function

Troubleshooting Guide

Malfunctions and Solutions

Table of common malfunctions, their causes, and recommended troubleshooting steps.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Autonics BW Series is a range of single-beam area sensors designed for various industrial applications, offering reliable object detection and robust performance.

Function Description

The BW Series sensors operate on a through-beam sensing method, where an emitter sends an infrared LED (850 nm modulated light) beam to a receiver. When an opaque object interrupts this beam, the sensor detects its presence. These sensors are particularly useful for detecting objects across a defined area, minimizing non-detection zones with a 20 mm optical pitch (BW20 models). They feature a long sensing distance of up to 7 meters, making them suitable for a wide range of applications.

The series offers 22 configurations, varying in the number of optics (from 4 to 48) and optical pitch (20 mm or 40 mm), allowing for detection areas from 120 mm to 940 mm. Key functions include a mutual interference prevention function, which is crucial when multiple sensors are installed closely to avoid sensing errors. This is achieved through a MASTER/SLAVE connection where one sensor acts as a master and others as slaves, utilizing a synchronous line for coordinated operation.

The sensors also incorporate a self-diagnosis function that monitors for malfunctions during normal operation. If a malfunction is detected, the control output turns OFF, and the operation indicator displays the specific state. An "Emitter OFF" function allows external systems to check sensor operation by forcibly stopping light emission, which can be used for testing or system diagnostics. Additionally, an "Optical axis misalignment alarm" provides an early warning when the front screen is contaminated, the optical axis is misaligned, or the emitter is damaged, by changing the control output and activating specific LED indicators.

Important Technical Specifications

• Sensing Method: Through-beam
• Light Source: Infrared LED (850 nm modulated light)
• Sensing Distance: 0.1 to 7.0 m
• Sensing Target: Opaque material, minimum Ø30 mm (BW20) or Ø50 mm (BW40)
• Number of Optical Axes: 8 to 48 (BW20) / 4 to 24 (BW40)
• Sensing Height: 140 to 940 mm (BW20) / 120 to 920 mm (BW40)
• Optical Axis Pitch: 20 mm (BW20) / 40 mm (BW40)
• Response Time: ≤ 10 ms
• Operation Mode: Light ON
• Interference Protection: Emitter OFF (external diagnosis), self-diagnosis, and MASTER/SLAVE function
• Synchronization Type: Timing method by synchronous line
• Indicators: Emitter: Operation indicator (green, red); Receiver: Operation indicator (red, yellow, green)
• Power Supply: 12-24 VDC (ripple P-P: ≤ 10%)
• Current Consumption: Emitter/receiver: ≤ 120 mA
• Control Output: NPN or PNP open collector output
  • Load Voltage: ≤ 30 VDC=
  • Load Current: ≤ 100 mA
  • Residual Voltage: NPN: ≤ 1 VDC=, PNP: ≤ 2.5 VDC=
• Protection Circuit: Reverse power protection circuit, output short overcurrent protection circuit
• Insulation Resistance: ≥ 20 MΩ (500 VDC= megger)
• Noise Immunity: ± 240 V the square wave noise (pulse width 1µs) by the noise simulator
• Dielectric Strength: 1,000 VAC~50/60 Hz for 1 minute (between the charging part and the case)
• Vibration: 1.5 mm double amplitude at frequency of 10 to 55 Hz in each X, Y, Z direction for 2 hours
• Shock: 500 m/s² (≈ 50 G) in each X, Y, Z direction for 3 times
• Ambient Illumination (receiver): ≤ 100,000 lx (upgraded feature)
• Ambient Temperature: -10 to 55 °C (operation), -20 to 60 °C (storage) (no freezing or condensation)
• Ambient Humidity: 35 to 85 %RH (operation), 35 to 85 %RH (storage) (no freezing or condensation)
• Protection Rating: IP65 (IEC standard)
• Cable Spec.: Ø 5 mm, 4-wire, 300 mm
• Connector Spec.: M12 plug connector
• Material: Case: AL, front cover and sensing part: acryl

Usage Features

• Easy Installation: The sensors are designed for straightforward installation, with specific guidelines for direction, reflection from surfaces, and interference protection. An "Installation Mode" simplifies initial setup by guiding the user to position the unit correctly until the green LED of the receiver operation indicator turns ON.
• Flexible Configurations: With 22 different models, users can select the most appropriate sensor based on the required number of optical axes, optical pitch, and detection area, ranging from 120 mm to 940 mm.
• Bright LED Indicators: Emitter and receiver units are equipped with bright LED indicators (green, red, yellow) that provide clear visual feedback on the sensor's operational status, including stable light ON/OFF, unstable light ON/OFF, and various error conditions.
• Environmental Robustness: The BW Series is built to withstand challenging industrial environments, featuring an IP65 protection rating, high ambient illuminance tolerance (100,000 lux), and resistance to vibration, shock, and a wide range of temperatures and humidity.
• Safety Considerations: The manual emphasizes critical safety precautions, including the necessity of fail-safe devices for machinery that could cause serious injury or economic loss. It warns against use in hazardous environments (flammable/explosive gas, high humidity, etc.) and stresses the importance of proper wiring and avoiding disassembly or modification.

Maintenance Features

• Self-Diagnosis: The integrated self-diagnosis function continuously monitors the sensor for malfunctions such as a break in the emitting element, emitter failure (time out), or issues with the synchronous line. This proactive monitoring helps in identifying and addressing problems early.
• Optical Axis Misalignment Alarm: This feature acts as a maintenance alert, signaling when the optical axis is misaligned due to factors like dust accumulation on the front screen, vibration, or emitter damage. This allows for timely cleaning or adjustment, preventing potential detection failures.
• Cleaning: The manual specifies using a dry cloth for cleaning the unit, explicitly prohibiting water or organic solvents to prevent damage or fire.
• Troubleshooting Guide: A comprehensive troubleshooting section is provided, detailing common malfunctions (e.g., non-operation, control output issues, LED display errors) and their probable causes, along with recommended solutions. This guide assists users in quickly diagnosing and resolving issues, often without needing to contact customer service.
• Connection Checks: For issues like non-operation or synchronous line malfunctions, the guide advises checking wiring connections, ensuring proper power supply, and verifying the integrity of assembled connector parts.
• Environmental Checks: Recommendations include removing dirt from sensor covers, ensuring the unit is within its rated sensing distance, and relocating the sensor away from strong electric waves or noise generators if interference is suspected.

Autonics BW Series Specifications