Integrates Hoisting, Loading, and Unloading control system, eld bus communication with direct cable connection as backup, Hydraulic Station status is also monitored.

Functions

• 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.

System Configuration