UMI-0900EU-B7 Unitronics | 90kW 3 Phase 380-480VAC | VSD

Why Choose the Unitronics UMI-0900EU-B7 Variable Frequency Drive?

The Unitronics UMI-0900EU-B7 is a high-power 90 kW variable frequency drive (VFD) designed to deliver precise speed and torque control for large industrial three-phase AC motors. Built for operation on a 380–480 V AC three-phase supply, this inverter enables reliable and energy-efficient motor control in demanding automation environments such as pumps, conveyors, compressors and heavy production machinery.

Part of the advanced Unitronics UMI-B7 drive series, the drive integrates modern motor control technology and flexible communication capabilities. The platform supports advanced control modes including SVPWM, sensorless vector control and closed-loop vector control, enabling stable torque output, smooth acceleration and precise motor performance across industrial processes.

Designed for seamless automation integration, the drive includes built-in Modbus RTU communication via RS-485 and supports optional expansion cards for Ethernet and other industrial networks. This flexible architecture allows the drive to operate as a standalone inverter or as part of a fully integrated PLC-based automation system.

Key Advantages

• 90 kW (approx. 120–125 HP) motor control for demanding industrial equipment.
• 380–480 V three-phase input compatible with global industrial power systems.
• Advanced vector motor control algorithms for precise speed and torque regulation.
• Built-in Safe Torque Off (STO) functional safety capability.
• Integrated Modbus RTU communication for PLC and automation system integration.
• Expandable architecture supporting communication, encoder and additional I/O modules.

Key Features

• Variable frequency drive (VFD) for industrial AC motor speed control.
• Rated motor power: 90 kW / approx. 125 HP.
• Input voltage: 380–480 V AC three-phase.
• Output frequency range: 0–400 Hz.
• Integrated Modbus RTU RS-485 communication.
• Optional Ethernet and fieldbus communication cards.
• Removable keypad interface for configuration and diagnostics.
• Supports asynchronous induction motors and permanent-magnet synchronous motors.

Technical Specifications

• Manufacturer: Unitronics
• Series: UMI-B7 Variable Frequency Drives
• Model: UMI-0900EU-B7
• Rated motor power: 90 kW (approx. 120–125 HP)
• Input voltage: 380–480 V AC, three-phase
• Input frequency: 50 / 60 Hz
• Output frequency range: 0–400 Hz
• Control methods: SVPWM, sensorless vector control (SVC), closed-loop vector control
• Supported motors: Three-phase asynchronous induction motors and PMSM motors
• Overload capacity: 150% for 60 s, 180% for 10 s, 200% for 1 s
• Communication: Modbus RTU RS-485 with optional communication cards
• Protection rating: IP20
• Cooling method: Forced air cooling

Industrial Motor Control and Energy Efficiency

Variable frequency drives regulate the voltage and frequency supplied to electric motors in order to control speed and torque. This enables improved process control, reduced mechanical wear and significant energy savings compared with fixed-speed motor systems. Modern VFD platforms such as the UMI-B7 series also support advanced closed-loop control and communication with industrial automation networks.

Typical Applications

• Industrial pumps and water treatment systems.
• HVAC fans and ventilation equipment.
• Heavy conveyor and material handling systems.
• Industrial compressors and process machinery.
• Large-scale manufacturing automation.

Trusted by Automation Engineers

Unitronics UMI-B7 drives are widely used by machine builders and automation engineers to deliver reliable, energy-efficient motor control across modern industrial systems.