Service Shaft Hoisting and Car Operation Control System
Integrates Hoisting, Loading, and Unloading control system, eld bus communication with direct cable connection as backup, Hydraulic Station status is also monitored.
- Applied PLC as central control unit, and field bus network for communication.
- System power voltage AC127V, individual isolate transformer with UPS in secondary.
- 20% more backup I/O in Load/Unload control system.
- Hoisting control system communicate with Unload control system by fieldbus and direct cable connection, Watch Dog signals from both side are monitoring each other.
- Unloading System records hoist batch and hoisted coal volume, and has Report function with hardcopy.
- The system monitor and control hydraulic station of load/unload system as well.
- In case signaling system or PLC system fault, the operation can be conducted by backup signal system.