LS Electric S100 Sensorless Vector Inverter

The LS Electric S100 is a dedicated sensorless vector inverter designed for demanding constant-torque and variable-torque applications in Saudi Arabia's industrial sector. Covering 0.4 kW to 400 kW on 380–480 V three-phase supply, the S100 fills the performance gap between general-purpose drives and full closed-loop vector drives, delivering encoder-class speed accuracy and torque response at open-loop cost. Its enhanced sensorless vector algorithm calculates real-time motor flux and torque, providing 200% starting torque at 0.5 Hz and speed accuracy of ±0.5% — performance sufficient for cranes, hoists, winders, and extruders where precise load handling is critical. The S100 supports dual-motor switching, allowing a single drive to alternate between two motors in applications such as duty/standby pump sets, reducing capital investment in standby drive inventory.

The S100's advanced control features include slip compensation, speed search restart, flying start, and a droop control function for load sharing between multiple drives on the same mechanical shaft — all accessible via the RS-485 Modbus RTU communication port standard on every unit. The drive accepts optional communication expansion cards for PROFIBUS-DP, DeviceNet, CANopen, EtherNet/IP, and PROFINET, enabling integration into the full range of DCS and SCADA platforms used in Saudi Arabia's oil and gas, water, and manufacturing sectors. Built-in safety features include STO (Safe Torque Off) conforming to EN ISO 13849-1 PLd, addressing the safety relay requirements of machine guarding applications without additional hardware.

In Saudi Arabia, the S100 is gaining rapid acceptance among engineering contractors working on petrochemical plant motor control centres, cement plant drives, and seawater desalination pump systems. The combination of European-level technical specification and Korean manufacturing cost efficiency makes the S100 an increasingly common alternative to Siemens G120 and ABB ACS580 in cost-sensitive infrastructure projects. The drive is rated for 50°C continuous ambient operation and carries CE, UL, and KC certifications, meeting all IEC 61800 series requirements applicable to Saudi project engineering specifications.

Razz Middle East is an authorised LS Electric distributor in Saudi Arabia, stocking the S100 in key power ratings from 0.75 kW to 110 kW for immediate dispatch to any location in the Kingdom. We offer competitive SAR pricing, 12-month warranty, and complete commissioning and training services. Our technical team can prepare drive parameter files matched to your specific motor nameplate data, reducing site commissioning time and risk.