Brief description

The unloader is generally contracted by US BLACK&VETCH Company which $belongs to Japan Sumitomo Indonesia TJB plant project. HiTECH is‍ a subcontractor who is responsible for the electrical control system design, product suppl>y, debugging and after sale service of the unloader and bucket wheel machine. The σproject design, manufacture and debug pass the BV strict e•xamination.

Mechanical parameters of the unloader: rated hoisting weight is 35t, rated productivity is 1♦500t/h, maximum productivity is 1800t/h, rated hoisting speed is 130m/min, ₩unload hoisting speed is 150m/min, cart rated speed♦ is 220m/min, carrier rated speed is 25m/min, cart seaside stroke is '35m, landside stroke is 18m. Hoisting height is 20.5m over the carrier track and 10m under t he carrier track.

The electrical parameters of the unloader: machine po≤wer 10KV, cable drum power supply, main transformer DYn11 2000KVA 10<KV/0.5KV, secondary transformer DYn11 315KVA 10KV/0.4KV. ♥hoisting support, motor switching: 500KW 500VAC, cart motor: 315KW 500VAC, pitching motor: 90KW 50'0VAC, carrier motor: 8 18.5KW 400VAC

Solution

HITE integration is used as the electrical control system. The transmission module use↕s ABB ACS800 series ISU multi-transmission product. PLC u§ses Schneider QUANTUM series and remote I/O series product. PLC communicates with speed reg♠ulator by PROFIBUS-DP, exchanging data in the speed at maximum 12Mbps and fully monit​oring the working status and detail information of the speed πregulator. PLC communicates with CMS  and touch screen by 10/100M industrial E≤thernet to construct the monitoring management system which real-time monitors the system worki≈ng condition, provides complete fault information an‌d make the running and maintenance easier.

Communication network diagram

Transmission diagram