Remote Control of EL-2 Electric Locomotive at Mini Maritsa Iztok, Troyanovo-North Mine
Within the internal railway transport system of Mini Maritsa Iztok EAD, the daily logistics of coal delivery to customers involves a series of critical operations. One of the most essential stages is the loading of trains, where coal, transported via conveyor belts from the mines, is transferred into the wagons through loaders.
Before the modernization, communication between the train operator and the loader operator was manual – using a siren. Based on the duration and number of siren beeps, the train operator would understand whether to move forward or backward. This method was inefficient, error-prone, and unreliable in noisy or low-visibility conditions.
The Solution: Modern SCADA System with Allen-Bradley Equipment
To modernize this process, ROTEK was commissioned to design and implement an intelligent signaling and communication system, where their engineering team demonstrated outstanding expertise and technical excellence.
🔧 Key system components:
- Allen-Bradley Micro820 controllers – for control and SCADA system communication;
- Allen-Bradley panel computer – serving as a server for both SCADA and IP telephony;
- Wireless communication via Prosoft radio – enabling reliable connection between the locomotive and the operator;
- IP telephony system – for voice support (non-Allen-Bradley hardware).
Standard messages are displayed on screens in both the operator’s and train driver’s cabins, ensuring quick, clear, and reliable communication.
Benefits:
✅ Increased operational safety;
✅ Elimination of human error in interpreting siren signals;
✅ Intuitive and user-friendly visual communication;
✅ Easy maintenance and scalability thanks to Allen-Bradley controllers.
Conclusion:
With this modern signaling system, Mini Maritsa Iztok EAD has taken a significant step toward the digital transformation and automation of its core operations. Thanks to the reliable Allen-Bradley equipment and the professional implementation by ROTEK, the company now benefits from an effective, safe, and state-of-the-art train communication system.