In industrial production, belt conveyors are important equipment for material transportation, and their safe operation directly affects production efficiency and personnel safety. The SBL-R6G12 sound and light alarm, as an efficient warning device, is widely used for early warning and operation status indication before belt start-up, effectively reducing the risk of safety accidents caused by sudden start-up or abnormal operation of equipment. The following are the specific application scenarios and technical implementation methods of the alarm in the belt conveyor system.

For example, at the beginning and end of the belt conveyor, the alarm can monitor in real time whether the belt deviates or accumulates too much coal, and issue an alarm in a timely manner to avoid belt damage or fire accidents. At turns and important intersections, the alarm can detect whether the belt is slipping or torn, and promptly initiate emergency stop procedures to protect equipment and personnel safety.

The sound and light alarm is a product developed based on the actual situation of large and medium-sized port machinery, electromechanical industry, belt conveyor equipment, cranes, ships, and docks. The lamp is manufactured using the currently popular LED tube, with advantages such as high protection level, simple operation, and easy installation. It is a new product developed on the basis of the original alarm, which is used for starting conveyor systems, railway crossings, and large equipment walking alarms. Its advantages integrate voice, sound, and light, and can be directly connected to an AC 220V power supply for operation, changing the previous limitation of only sound or only light.

Technical Specifications:

Power supply voltage: 220V/A (power supply can be changed according to customer requirements)

Power: 100W, 80W, 60W, 30W, etc

Current: 3A

Voice prompt type: adjustable (clockwise)

Volume: Adjustable (clockwise)

Wiring: Connect the lead directly to a 220V power supply without distinguishing between positive and negative poles

After practical use, multiple tone alarm prompts have played an important role in coordinating equipment alarms and protecting personal safety.

1、 The core functions of SBL-R6G12 sound and light alarm
1. * * Multi mode warning combination**
SBL-R6G12 adopts a combination of high brightness LED lights and a buzzer above 105dB, supporting three alarm modes: sound, light, or synchronous sound and light. Before starting the belt, a pre-set program can trigger a 10-30 second sound and light warning to remind surrounding personnel to stay away from the dangerous area of the equipment. For example, a coal mining enterprise activated the alarm 20 seconds before the belt started by linking the PLC control system, reducing the accident rate by 60% (data source: China Coal Industry Association 2024 Safety Report).

2. Wide voltage adaptation and industrial grade protection**
Support DC24V/AC220V dual voltage input, suitable for power configuration in different industrial scenarios; The IP65 protection level ensures stable operation in harsh environments such as dust and humidity. A case study of a transportation system in a port in Shandong Province shows that the alarm has been operating continuously for 3 years in a salt spray corrosion environment.

2、 Integrated solution for belt start warning system
1. Linkage logic with the control system**
-Hardwired connection: Directly connected to the belt motor control cabinet through the relay output module. When the control system issues a start command, the alarm will take priority action.
-PLC communication integration: Supports Modbus RTU protocol, programmable to set complex logic such as delay alarm and loop alarm. A cement plant uses Siemens S7-1200 PLC to achieve a composite function of 15 second warning before startup and periodic prompts during operation.

2. Multi node collaborative warning network**
For long-distance belt conveyors (such as mining conveyor belts exceeding 500 meters), multiple SBL-R6G12 segments can be installed and triggered synchronously through RS485 bus. In a certain iron ore project in Xinjiang, a network consisting of 8 alarm devices achieved full coverage warning for a 2-kilometer conveyor belt.

3、 Innovative applications in special scenarios
1. * * Fault diagnosis auxiliary function**
Through customized programming, the alarm can switch between different sound and light frequencies to indicate device status:
-Green light constantly on+intermittent buzzing: normal start warning
-Red light flashing+continuous buzzing: emergency stop or fault alarm

2. Intelligent upgrade direction**
Some companies have attempted to integrate alarm systems with IoT platforms to achieve:
-Cloud storage of warning records for security audits
-Remote triggering test for mobile app
-Predictive maintenance linkage based on vibration sensors
4、 Key points for installation and debugging
1. * * Location selection principle**
-Within a range of 15 meters from the belt drive device
-Height of 1.5-2.2 meters for easy visual observation
-Avoid strong electromagnetic interference sources (such as frequency converter cabinets)