UMI-0220EU-B7 Unitronics | 22 kW 3 Phase 380-480VAC | VSD

Why Choose the Unitronics UMI-0220EU-B7 Variable Frequency Drive?

The Unitronics UMI-0220EU-B7 is a high-performance 22 kW variable frequency drive (VFD) designed to control the speed and torque of three-phase AC motors in industrial automation systems. Operating on a 380–480 V three-phase supply, this inverter provides reliable and efficient motor control for applications such as pumps, fans, conveyors and process machinery.

Part of the advanced UMI-B7 drive series, this model combines modern control algorithms, flexible communication capabilities and built-in safety features. The drive supports multiple motor control methods including sensorless vector control, closed-loop vector control and SVPWM, allowing engineers to optimise performance, precision and energy efficiency across a wide range of industrial applications.

Designed for machine builders and automation engineers, the drive integrates easily with PLC and HMI systems and supports modern industrial communication methods such as Modbus RTU via RS-485 with optional expansion communication cards. This flexibility allows seamless integration into new automation systems or upgrades of existing equipment.

Key Advantages

• 22 kW (30 HP) motor control for demanding industrial applications.
• 380–480 V three-phase input suitable for global industrial power systems.
• Advanced vector and SVPWM control methods for precise speed and torque regulation.
• Built-in Safe Torque Off (STO) for enhanced functional safety.
• Modbus RTU communication with optional expansion cards for industrial networks.
• Integrated dynamic braking unit for improved motor stopping control.

Key Features

• Variable frequency drive (VFD) for AC motor speed control.
• Rated motor power: 22 kW / 30 HP.
• Input voltage: 380–480 V AC three-phase.
• Built-in Modbus RTU RS-485 communication.
• Removable keypad for configuration and diagnostics.
• Integrated dynamic braking unit.
• Multiple analogue and digital I/O for flexible control integration.
• Expandable architecture supporting optional communication and encoder cards.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B7 Variable Frequency Drives
• Model: UMI-0220EU-B7
• Rated motor power: 22 kW (30 HP)
• Input voltage: 380–480 V AC, three-phase
• Input frequency: 50 / 60 Hz
• Rated output current: approx. 45 A
• Output frequency range: up to 400 Hz
• Control methods: SVPWM, sensorless vector control (SVC), closed-loop vector control (VC)
• Communication: Modbus RTU (RS-485) + optional communication cards
• Digital inputs: 6 inputs including high-speed inputs
• Analogue inputs: 0–10 V / 0–20 mA options
• Protection rating: IP20
• Cooling method: Forced air cooling
• Dimensions: approx. 400 mm × 255 mm × 242 mm

Industrial Motor Control and Energy Efficiency

Variable frequency drives are widely used in modern automation systems because they allow motors to operate only at the required speed and torque for a given process. By adjusting motor frequency and voltage, VFDs improve system efficiency, reduce mechanical wear and provide smoother control of industrial machinery.

The UMI-B7 drive range supports both asynchronous induction motors and permanent-magnet synchronous motors, providing flexible integration across manufacturing, process control and machine-building environments.

Typical Applications

• Pumps and water management systems.
• HVAC fans and ventilation systems.
• Industrial conveyors and material handling equipment.
• Packaging and process machinery.
• General industrial motor speed control.

Trusted by Automation Engineers

Unitronics UMI-B7 drives are widely used by machine builders and system integrators for reliable, high-performance motor control in industrial automation environments.