Discover Unitronics’ innovative VSDs (Variable Speed Drives) premium, integrated motor and motion-control solutions from LED Controls. Available in both B1 and advanced B7 series, these VSDs offer seamless compatibility with Unitronics PLCs (UniStream, Vision, Samba), combining control, HMI, and drive in one powerful package. Whether you're managing pumps, conveyors, fans, or precision motion systems, Unitronics drives deliver reliability, flexibility, and top-tier performance.
Built with versatility in mind, Unitronics variable speed drives not only simplify installation and commissioning but also provide substantial energy savings and reduce maintenance costs. Designed for demanding industrial environments, these drives ensure optimum motor performance while enhancing safety and productivity through advanced diagnostics, integrated communications, and easy configuration via intuitive software tools.
Unitronics VSDs redefine efficiency and simplicity in motor control. Choose from B1 series for reliable stand-alone inverter functionality up to 110 kW, or the cutting-edge B7 line featuring Ethernet support, STO functional safety, and precision closed-loop control for speed, torque, and position
Key Features:
These drives are ideal for industrial automation environments — offering energy savings, reduced hardware complexity, enhanced motor protection, and synergy with the broader Unitronics ecosystem.
The B1 series provides cost-effective V/F or sensorless vector control up to 110 kW, ideal for general-purpose applications. The B7 series adds advanced features: closed-loop control, Ethernet, STO safety, LCD keypad with wizard, and broader power range (up to 500 kW) .
Yes — using UniLogic you can configure and monitor up to 32 VFDs, enabling synchronised motion and complex multi-drive applications.
B1 supports induction motors; B7 supports both induction and permanent-magnet synchronous motors in both open-loop and closed-loop modes.
Yes — B7 includes SIL2-rated Safe Torque Off functionality, and the series is TÜV‑SÜD, CE, UL, and cUL certified.
All models include Modbus RTU over RS‑485. B7 supports Ethernet communication via optional cards, including Modbus‑TCP, EtherNet/IP, EtherCAT, and CANopen.
Yes — you can control and debug drives in real-time using UniStream HMIs or UniLogic software, including the Scope Trace graphical tool for troubleshooting.
VFDs precisely adjust motor speed to the operational demand, minimising energy waste. The closed-loop control in B7 series also reduces overshoot, improving process efficiency and cutting lifecycle costs.
Units offer wall, flange, or rail mounting. Many models include built-in EMC filtering and braking units. Operating temperature ranges from –10 °C to +50 °C, with IP20 protection.
Their robust design allows overloads up to 200% of rated current for 1 second, 180% for 10 seconds, or 150% for 60 seconds — perfect for handling transient loads.
LED Controls stocks a range of Unitronics VSDs, including popular models like UMI‑1100EU‑B7 and UMI‑0007CU‑B1 — contact our technical team for advice, quotes, and next-day delivery in the UK.
