Conveyor automatic control with full HV/LV switchgear, HV VFD & soft starter, PLC sequential interlock to avoid material blockage and realize unmanned bulk transportation.

The problem we need to solve

Manual sequential start-stop easy to cause material pile-up and belt blocking, direct-on-line startup produces huge current damaging conveyor motor, scattered multi-section conveyor hard for centralized management, high maintenance cost caused by sudden equipment damage.

How Our System Solve Problems Step by Step?

1.Full set power distribution layout

Long-distance large-capacity belt conveyor high-voltage motor powered by KYN28A-12 cabinet; intermediate transfer equipment, auxiliary machinery adopt GGD fixed cabinet and MNS/GCS drawer cabinet; reactive power compensation cabinet improves power factor for periodic variable load of conveying line.

2.Motor startup & speed regulation optimization

High-power main conveyor motor installs high voltage soft starter cabinet to limit startup current and avoid belt instant tension damage; variable load feeding conveyor matches HV VFD cabinet to adjust running speed according to downstream material stock quantity.

3.PLC full-line sequential interlock & multi-protection logic

PLC connects deviation switch, blockage sensor, emergency stop button of each conveyor section, sets forward sequential startup and reverse sequential shutdown logic: downstream equipment starts first then upstream feeding machine; any position blockage or belt deviation triggers automatic upstream shutdown to avoid bulk material stacking; DCS is available for mine long-distance multi-kilometer conveying cluster line for central control room unified monitoring.

Application & Benefits

Application: Mine ore transportation, cement raw material conveying, bulk grain delivery, chemical powder conveying system.

Benefits: Greatly reduce conveyor blockage failure rate, cut material spill loss, realize partial or full unmanned conveying operation, lower long-term equipment maintenance cost.