Safety Bus Technology Reduces Elevator Cable Length and Complexity
A patent (CN224429885U) describes an elevator control system using a safety bus that significantly improves reliability while reducing cable requirements .
Key Innovations:
Segmented Safety Chain Design: Divides the safety link into logically independent segments, enabling precise fault location and reducing troubleshooting time
Safety Bus: Uses real-time communication protocols including CANopenSafety, PROFIsafe, SafetyBUS p, and EtherCAT Safety to transmit safety signals reliably
Reduced Cable Length: Shortens cables required within the system, reducing complexity and installation costs
System Architecture:
Car top safety plate and control cabinet safety plate connected via safety bus
Entire elevator safety chain classified into car top safety chain and control cabinet safety chain by function and location
