Zoeyilan BEM0620-30NB Safety Light Curtain User Manual

1. Introduction

This manual provides essential information for the safe and effective installation, operation, and maintenance of the Zoeyilan BEM0620-30NB Safety Light Curtain. This device is designed to enhance safety in industrial environments by creating an infrared light barrier to detect intrusions into hazardous areas, thereby preventing accidents.

The BEM0620-30NB model features accurate signal responses, multiple protection features, and a robust design for stability and durability in demanding conditions.

2. Safety Information

WARNING: Read all safety instructions carefully before installation or operation. Failure to follow these instructions may result in serious injury or death.

• Installation and maintenance should only be performed by qualified personnel.
• Always disconnect power to machinery before installing, servicing, or inspecting the safety light curtain.
• Ensure the safety light curtain is correctly aligned and functioning before operating any associated machinery.
• Do not bypass or tamper with the safety light curtain's protective functions.
• Regularly inspect the device for damage or malfunction. Replace damaged components immediately.

3. Package Contents

Verify that all items listed below are present in the package:

• 1 x Transmitter Unit
• 1 x Receiver Unit
• 2 x Adapter Lines (for power and signal connection)
• 1 x Accessory Package (4 x Splints, 4 x Bolts, 8 x Screws, 4 x Nuts, 4 x Gaskets, 8 x Washers)
• 1 x User Manual (this document)

Image 3.1: Contents of the Zoeyilan BEM0620-30NB Safety Light Curtain package, including the transmitter, receiver, adapter lines, and mounting hardware.

4. Product Features

The Zoeyilan BEM0620-30NB Safety Light Curtain incorporates several key features for reliable industrial safety:

• Far Infrared Design: Utilizes high-quality infrared lamp chips and light panels with a far-infrared design, offering strong anti-light interference for quick and accurate signal responses, significantly reducing accident risks.
• Multiple Protection: Equipped with short circuit, overcurrent, and reverse connection protection. The seismic groove design of the back slide block ensures excellent durability.
• Intelligent Technology: Incorporates advanced intelligent technology and circuit safety self-inspection design, locking the safety grating into a secure state during malfunctions to prevent accidents.
• Other Functions: Offers multi-functional support, including power-on delay, blind zone filtering, and anti-electromagnetic interference. Features a protection height of up to 30-2520mm (1.1-99.2in) and a detection range of up to 3 meters (118ft).
• Aluminum Shell: Constructed with a robust aluminum alloy shell, providing superior sealing, dustproof, waterproof, and oil-proof capabilities. Maintains sensitivity even in harsh working environments.

Image 4.1: Front view of the Zoeyilan BEM0620-30NB Safety Light Curtain, highlighting its robust aluminum alloy casing and sensor array.

5. Specifications

6. Setup

Proper setup is crucial for the safety light curtain's performance and safety function. Consult the detailed wiring diagrams and mounting instructions provided with your specific machine or system.

6.1 Mounting

• Mount the transmitter and receiver units parallel to each other, ensuring a clear line of sight between them.
• Use the provided splints, bolts, and screws to securely fasten the units to a stable surface.
• Ensure the protection height and detection distance are appropriate for the hazardous area.

6.2 Wiring

• Connect the adapter lines to the M12 connectors on the transmitter and receiver units.
• Wire the safety light curtain to the machine's safety circuit according to the electrical diagram. Pay close attention to the NPN/NC output mode.
• Ensure all connections are secure and properly insulated to prevent short circuits.

Image 6.1: Detailed view of the M12, 3-pin and 4-pin connectors on the Zoeyilan BEM0620-30NB Safety Light Curtain, indicating wiring interfaces.

6.3 Alignment

• Power on the system. The light curtain units typically have indicators to assist with alignment.
• Adjust the position of the transmitter and receiver until the alignment indicators show a stable, clear signal.
• Perform a functional test to ensure the light curtain detects objects correctly across its entire protection field.

Image 6.2: Zoeyilan BEM0620-30NB Safety Light Curtain installed in an industrial setting, showing its application for protecting machinery.

7. Operating Instructions

Once properly installed and aligned, the safety light curtain operates automatically to monitor the protected area.

• Power On: Upon power-up, the device performs a self-check. Ensure all indicators show normal operation before proceeding.
• Normal Operation: When the light path between the transmitter and receiver is clear, the safety output (OSSD) remains active, allowing the connected machine to operate.
• Interruption: If an object or person breaks the infrared light beams, the safety output immediately deactivates, stopping the hazardous machine movement.
• Reset: After an interruption, the light path must be clear, and a manual reset (if configured in the machine's safety circuit) may be required to restart machine operation.

8. Maintenance

Regular maintenance ensures the continued reliability and safety function of the BEM0620-30NB Safety Light Curtain.

• Cleaning: Periodically clean the optical surfaces of the transmitter and receiver units with a soft, lint-free cloth. Do not use abrasive cleaners or solvents.
• Inspection: Regularly inspect the units, cables, and mounting hardware for any signs of damage, corrosion, or loose connections.
• Functional Test: Perform routine functional tests by intentionally interrupting the light curtain to verify that the safety output deactivates and the machine stops as expected.
• Environmental Check: Ensure the operating environment remains within the specified temperature and humidity ranges.

9. Troubleshooting

If the safety light curtain is not functioning as expected, refer to the following common issues and solutions:

• No Power/Indicators Off:
  • Check power supply connections (DC24V).
  • Verify adapter line integrity.
  • Inspect for blown fuses in the control panel.
• Light Curtain Constantly Interrupted (Machine Won't Start):
  • Check for obstructions in the light path.
  • Verify proper alignment of transmitter and receiver units.
  • Clean optical surfaces if dirty.
  • Check for strong external light interference (e.g., direct sunlight).
• Light Curtain Not Responding to Interruption:
  • Perform a functional test. If it fails, immediately cease machine operation.
  • Check wiring to the machine's safety circuit.
  • Contact technical support if the issue persists after basic checks.
• Error Indicators Active:
  • Refer to the specific error code or indicator pattern (if available on the device) for detailed diagnostics.
  • Common errors include alignment issues, internal faults, or wiring problems.

10. Warranty and Support

For warranty information, please refer to the terms and conditions provided at the time of purchase or contact your vendor. For technical support, assistance with installation, or troubleshooting beyond the scope of this manual, please contact Zoeyilan customer service or your authorized distributor.

When contacting support, please have your product model (BEM0620-30NB) and a detailed description of the issue ready.