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Variable Frequency Drives (VFD)

High performance, cost effective VFDs, ideal for both machines & process control. Unitronics VFDs offer options for both single and three phase VFDs from 0.4 kW and up to 500 kW.

Use as stand-alone inverters—or optimize your applications with a complete All-in-One package with our controllers and free, Ready-made Motion code.

New! B7 Series support Ethernet and precise, integrated closed-loop control for torque, speed, and position.

VFD: Easy to Program. Simple to Use

  • STO, Built-in
  • Communication: Built-in RS485 Modbus RTU, Optional Ethernet cards
  • EMI Filters, Built-In
  • Braking units, Built-in
  • Heavy-duty overload capacity, up to 200%
  • Coated PCBs: minimize dust penetration damage
  • Sensorless control: Vector, Torque, volts per Hz
  • Closed-loop control (B7 series only)
  • Mounting options: Wall, Flange, Rail
  • Optional extension cards for communication and I/O
  • CE, UL, cUL, and TÜV-SÜD Functional Safety

Unitronics VFDs can be used as a stand-alone product, or within an end-to-end solution: VFD, controller, and HMI.

This simplifies workflow by enabling you to:

  • Obtain your VFDs, PLC + HMI controllers and related components, as well as technical support, from a single supplier.
  • Operate your VFD directly from the controller’s HMI panel
  • Use the same programming software as the PLC control and HMI application, to:
    • Set-up and configure multiple VFDs in a snap
    • Monitor and debug your VFD – either via UniLogic or Scope Trace
    • Remotely Access your VFD via UniLogic software environment
  • Effortless Communication- Simple communication based control . Ensuring your system provides robust operation & minimizing EMI effect.
  • Cost Effective –
    • Energy efficacy
    • Reduce IO modules and cabling costs
    • Short integration & development time

UniLogic – award winning software
now with VFD integration!

  • Dynamic configuration profile
  • Easy to use setup wizard
  • Multi-Motor control
  • Operate directly from UniStream
  • Monitor and debug the VFD via online watch or Scope Trace graph
Unilogic screens

Product Specifications

PowerInput Voltage200-240VAC, Single Phase
380-440VAC, Three Phase
380-480VAC, Three Phase (≤11kW/15HP)
200-240VAC, Three Phase
380-480VAC, Three Phase
200-240VAC, Three Phase
380-480VAC, Three Phase
520-600VAC, Three Phase

Input Frequency50/60Hz
Supported MotorsAsynchronous Induction MotorsAsynchronous Induction Motors,Permanent Magnet Synchronous
Output Frequency0-400Hz
Overload Capacity150%, 60 seconds, 180%, 10 seconds, 200%, 1 second
ControlControl MethodSVPWM (Space Vector PWM)
SVC (Sensorless Vector Control)
SVPWM (Space Vector PWM)
VC (Closed loop vector control)
SVC (Sensorless Vector Control)
Control SettingMODBUS, Analog, Digital, PID, PulseMODBUS, Analog, Digital, PID, Pulse,veriety of communication cards
CommunicationMODBUS RTU RS-485Build in MODBUS RTU RS-485 + optional communication cards (see catalog)
InputAnalog InputsTotal 2:
1 input 0-10V,
1 input 0-10V
Total 3:
2 inputs 0-10V, 0-20mA
1 input 0-10V
Total 2: AI1: 0-10V/0-20mA , AI2: -10->10V
Digital InputsTotal 5:
4 inputs 1kHz
1 input 50kHz
Total of 9:
8 regular inputs; max.frequency:1kHz;
internal impendence:3.3kOhm
1 high-speed inputs ; max frequency:50kHz
Total of 6:
4 regular inputs; max.frequency:1kHz;
internal impendence:3.3kOhm
2 high-speed inputs ; max frequency:50kHz
OutputAnalog OutputsUp to 2 outputs:
1 output 0-10V/0-20mA (≤2.2kW/3HP)
2nd output available for (>2.2kW/3HP)
2 outputs, 0-10V, 0-20mA1 output, 0-10V/0-20mA
Digital Outputs1 output sink/sourceTotal of 2:
1 output sink/source,
1 output 50kHz
Relay Outputs
Total 2 Programmable Multi-functional outputs
FeaturesDynamic Braking UnitBuilt-in (≤30kW/40HP)
Optional (>30kW/40HP)
Built-in for VFDs of 220V (≤15kW)
and 480V (≤30kW)
Optional for VFDs of 220V (18.5-55kW),
480V (≥37kW)
EMC FiltersBuilt-In C3, Comply with IEC/ 61800-3
Expansion cardsNoneYes, I/O cardsMax 3 Expansion cards: Communication cards, PG cards, I/O cards
GeneralOperating Temperature(-10)°C/14°F – 50°C/122°F
(de-rated by 1% for every 1°C/2°F above 40°C/104°F)
Enclosure RatingIP20
Mounting OptionsWall and RailWall, Flange and Floor
Safe Torque OffIntegratedNoIntegrated
ApprovalsCE, TÜV-SUD Safety Mark, UL
and cUL (≤11kW/15HP)
CE, UL and cUL


UMI-B1 Series - STO- TÜV SÜD certified

Article NumberRated Output Power kWRated Output Power HPInput Voltage
UMI-0004BE-B10.40.5200-240V Single Phase
UMI-0007BE-B10.751200-240V Single Phase
UMI-0015BE-B11.52200-240V Single Phase
UMI-0022BE-B12.23200-240V Single Phase
UMI-0007EE-B10.751380-440V Three Phase
UMI-0015EE-B11.52380-440V Three Phase
UMI-0022EE-B12.23380-440V Three Phase
UMI-0040EE-B145380-440V Three Phase
UMI-0055EE-B15.57.5380-440V Three Phase
UMI-0075EE-B17.510380-440V Three Phase
UMI-0110EE-B11115380-440V Three Phase
UMI-0150EE-B11520380-440V Three Phase
UMI-0185EE-B118.525380-440V Three Phase
UMI-0220EE-B12230380-440V Three Phase
UMI-0300EE-B13040380-440V Three Phase
UMI-0370EE-B13750380-440V Three Phase
UMI-0450EE-B14560380-440V Three Phase
UMI-0550EE-B15575380-440V Three Phase
UMI-0750EE-B175100380-440V Three Phase
UMI-0900EE-B190120380-440V Three Phase
UMI-1100EE-B1110150380-440V Three Phase


UMI- B1 Series - UL Certified

Article NumberRated Output Power kWRated Output Power HPInput Voltage
UMI-0004BU-B10.40.5200-240V Single Phase
UMI-0007BU-B10.751200-240V Single Phase
UMI-0015BU-B11.52200-240V Single Phase
UMI-0022BU-B12.23200-240V Single Phase
UMI-0004CU-B10.40.5200-240V Three Phase
UMI-0007CU-B10.751200-240V Three Phase
UMI-0007EU-B10.751380-480V Three Phase
UMI-0015EU-B11.52380-480V Three Phase
UMI-0022EU-B12.23380-480V Three Phase


UMI-B5 Series - UL Certified

Article NumberRated Output Power kWRated Output Power HPInput Voltage
UMI-0007CU-B50.751200-240V Three Phase
UMI-0015CU-B51.52200-240V Three Phase
UMI-0022CU-B52.23200-240V Three Phase
UMI-0040CU-B545200-240V Three Phase
UMI-0055CU-B55.57.5200-240V Three Phase
UMI-0075CU-B57.510200-240V Three Phase
UMI-0110CU-B51115200-240V Three Phase
UMI-0150CU-B51520200-240V Three Phase
UMI-0185CU-B518.525200-240V Three Phase
UMI-0220CU-B52230200-240V Three Phase
UMI-0300CU-B53040200-240V Three Phase
UMI-0370CU-B53750200-240V Three Phase
UMI-0450CU-B54560200-240V Three Phase
UMI-0550CU-B55575200-240V Three Phase
UMI-0015EU-B51.52380-480V Three Phase
UMI-0022EU-B52.23380-480V Three Phase
UMI-0040EU-B545380-480V Three Phase
UMI-0055EU-B55.57.5380-480V Three Phase
UMI-0075EU-B57.510380-480V Three Phase
UMI-0110EU-B51115380-480V Three Phase
UMI-0150EU-B51520380-480V Three Phase
UMI-0185EU-B518.525380-480V Three Phase
UMI-0220EU-B52230380-480V Three Phase
UMI-0300EU-B53040380-480V Three Phase
UMI-0370EU-B53750380-480V Three Phase
UMI-0450EU-B54560380-480V Three Phase
UMI-0550EU-B55575380-480V Three Phase
UMI-0750EU-B575100380-480V Three Phase
UMI-0900EU-B590120380-480V Three Phase
UMI-1100EU-B5110150380-480V Three Phase


Document Downloads

VFD filters: Installation Guide & Technical Specification

File NameDownload File

User Manuals

File NameDownload File
UMI-B5 operation manualDownload


File NameDownload File
B7 VFDs Optional PartsDownload
B1/B5 series VFDs optional partsDownload