SUNSIN Medium & High‑Voltage VFD is an air‑cooled heavy‑duty drive built for mining and heavy‑industry. Adopting cascaded H‑bridge multi‑level topology, it delivers high low‑speed torque for smooth full‑load restart of mining conveyors. Master‑slave control realizes load balance for multi‑motor systems. With low grid harmonics, modular quick‑replace units and comprehensive fault protection, it cuts downtime in harsh mine‑site environments. Ideal for conveyors, crushers, fans and pumps. Custom configurations are available for your industrial projects.
The integrated cabinet design combines power modules, cooling assemblies and human‑machine operation panel all‑in‑one. Operators can complete local parameter adjustment, real‑time data monitoring and fault checking directly from cabinet front, without extra auxiliary control cabinets. Its air‑cooled structure removes complicated water‑cooling supporting facilities, lowering site installation workload and later maintenance costs.
Compliant with IEEE 519 power quality requirements, the drive produces little harmonic interference to plant power grid. Additional harmonic filters are unnecessary under most working conditions, helping customers save extra investment for power‑quality renovation. Multiple safety protection logics cover over‑current, over‑temperature, belt‑slip warning and motor overload, with complete fault history records to support rapid on‑site troubleshooting.
By dynamically adjusting motor speed according to actual production capacity, the VFD achieves remarkable energy‑saving effect for 24/7 continuous running equipment. Whether you are retrofitting existing mining equipment or building brand‑new heavy‑industry production lines, SUNSIN technical team can adjust cabinet layout, function logic and interface protocols to match your on‑site operating conditions.
