1. Introduction
This manual provides essential information for the safe and effective use of the AVLIS-CO SF4B-H24 Safety Light Curtain. This device is designed to protect personnel from hazardous machinery by creating a sensing field that, when interrupted, initiates a safety stop command. Please read this manual thoroughly before installation, operation, or maintenance.
The SF4B-H24 is a Type 4 safety light curtain, indicating its high level of reliability and fault detection capabilities as per international safety standards.
2. Product Overview
The AVLIS-CO SF4B-H24 Safety Light Curtain consists of a transmitter and a receiver unit. These units are typically mounted opposite each other to create a protective light screen. When an object or person breaks the light beams, the system detects the interruption and sends a signal to stop the associated machinery.
Figure 1: The AVLIS-CO SF4B-H24 Safety Light Curtain, showing the two main units and a cylindrical component, likely a test rod or alignment tool.
3. Safety Information
WARNING: Failure to follow these safety instructions can result in serious injury or death. This device is a safety component and must be installed and maintained by qualified personnel only.
- Always disconnect power before performing any installation, maintenance, or troubleshooting.
- Ensure proper grounding of all components.
- Do not bypass, modify, or defeat the safety functions of this device.
- Regularly test the light curtain's functionality as per local safety regulations and manufacturer guidelines.
- Refer to relevant international and local safety standards (e.g., ISO 13849-1, IEC 61496-1/-2) for proper application.
4. Setup and Installation
Proper installation is critical for the effective operation of the safety light curtain. Consult the detailed installation guide provided with the product for specific mounting dimensions and wiring diagrams.
4.1. Mounting
- Identify the transmitter (T) and receiver (R) units.
- Mount the transmitter and receiver units rigidly and parallel to each other, ensuring the sensing surfaces face each other directly.
- Maintain the specified sensing distance (470MM refers to the protected height, not necessarily the sensing distance). Refer to product specifications for maximum sensing range.
- Ensure the light curtain is positioned to prevent access to the hazard zone without breaking the light beams.
- Consider the required safety distance (stopping time of the machine + response time of the light curtain) to prevent personnel from reaching the hazard before the machine stops.
4.2. Wiring
- Connect the power supply according to the wiring diagram.
- Connect the Output Signal Switching Device (OSSD) outputs from the receiver to the safety input of the machine's control system.
- Ensure all connections are secure and protected from environmental factors.
- Verify power supply voltage matches the product's requirements.
4.3. Alignment
After mounting and wiring, align the transmitter and receiver units. Most light curtains include alignment indicators (e.g., LEDs) to assist with this process. Adjust the units until the alignment indicators show a strong, stable signal.
5. Operation
Once installed and aligned, the SF4B-H24 operates automatically to monitor the protected area.
5.1. Power On
Apply power to the light curtain system. The status indicators on both the transmitter and receiver units should illuminate, indicating proper operation. If an object is detected in the sensing field during power-up, the outputs will remain in the OFF state.
5.2. Normal Operation
In normal operation, with no obstruction in the sensing field, the OSSD outputs will be ON, allowing the connected machinery to operate. If any part of the sensing field is interrupted, the OSSD outputs will switch to the OFF state, initiating a stop command to the machinery.
5.3. Reset Function
After an interruption, the light curtain typically requires a manual reset to resume operation. This prevents unexpected machine restarts. The reset button should be located outside the hazard zone and allow a clear view of the protected area.
6. Maintenance
Regular maintenance ensures the continued reliability and safety of the SF4B-H24 Safety Light Curtain.
6.1. Daily Checks
- Visually inspect the light curtain for any physical damage, loose cables, or excessive dirt/debris on the sensing surfaces.
- Perform a functional test by intentionally interrupting the light beams with a test rod (e.g., the cylindrical component shown in Figure 1) to ensure the machine stops.
- Verify that the reset function operates correctly.
6.2. Weekly/Monthly Checks
- Clean the sensing surfaces of the transmitter and receiver units using a soft, lint-free cloth and a mild cleaning solution (if necessary).
- Check mounting brackets for tightness and ensure units remain properly aligned.
- Inspect wiring for wear, damage, or corrosion.
6.3. Annual Checks
- Conduct a thorough inspection of the entire safety system, including the light curtain, associated control logic, and machine stopping performance.
- Verify that the safety distance calculations are still valid for the application.
- Document all maintenance activities and test results.
7. Troubleshooting
This section provides guidance for common issues. For complex problems, contact AVLIS-CO technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Light curtain not operating (OSSDs OFF) |
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| Intermittent tripping |
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| Machine does not stop when beam is broken |
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8. Specifications
| Feature | Detail |
|---|---|
| Model | SF4B-H24 |
| Type | Type 4 Safety Light Curtain |
| Protected Height | 470MM |
| Brand | AVLIS-CO |
| Material | Copper (likely for internal components or housing) |
| Item Weight | 15 Ounces (approx. 425 grams) |
| Number of Items | 1 (complete set) |
9. Warranty Information
AVLIS-CO products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official AVLIS-CO website. Typically, warranty covers defects in materials and workmanship under normal use for a specified period from the date of purchase.
Please retain your proof of purchase for warranty claims.
10. Technical Support and Contact
If you encounter issues not covered in this manual or require further assistance, please contact AVLIS-CO technical support.
- Website: www.avlisco.com (Note: This is a placeholder URL as no actual URL was provided.)
- Email: support@avlisco.com (Note: This is a placeholder email.)
- Phone: Refer to the product packaging or official website for regional contact numbers.
When contacting support, please have your product model (SF4B-H24) and serial number ready.