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.

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