UMI-B1 Series – UL

Save IO by using your PLC to directly control your Unitronics VFDs / Inverters (UMI)

This series of inverters is CE marked and is available from 0.4 kW to 2.2 kW.

These inverters can be used as stand alone variable speed drives or they can be controlled by other third party equipment by traditional analogue and digital IO.  A Modbus serial communication option  is also available.  Real cost savings can be made when it comes to integration with a Unitronics PLC/HMI as in built functions, in both VisiLogic and UniLogic, allow fast configuration of motor axes.  Control and configuration parameters can be readily transferred to and from Samba, Vision and UniStream controllers.


Simplified workflow allows 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

Monitor & debug your VFD either via UniLogic/Scope Trace

Remotely Access your VFD via UniLogic

Unitronics Variable Frequency Drives (VFD)

Variable Frequency Drives (VFDs)—also called inverters—optimize machine performance, save energy, and lower machine life cycle costs across a range of applications.


Unitronics VFDs offer options for both single and three phase VFDs from from 0.4 kW and up to 110 kW.


Inverter Manual Description User Manual
UMI-B1-UL Series B1-UL Series User Manual PDF Link
UMI Inverter setup Series Setup Guide to UMI’s PDF Link

UMI-B1-UL [UL] (Single Phase 200-240 V)

Article Number Rated Output Power Rated Input Current Rated Output Current Dimensions W x H x D
kW HP A A mm mm mm
UMI-0004BU-B1 0.4 0.5 6.5 2.5 80 160 124
UMI-0007BU-B1 0.75 1 9.3 4.2 80 160 124
UMI-0015BU-B1 1.5 2 15.7 7.5 80 185 141
UMI-0022BU-B1 2.2 3 20 10 80 185 141

UMI-B1-UL [UL] (Three Phase 200-240 V)

Article Number Rated Output Power Rated Input Current Rated Output Current Dimensions W x H x D
kW HP A A mm mm mm
UMI-0004CU-B1 0.4 0.5 3.7 2.5 80 185 141
UMI-0007CU-B1 0.75 1 5 4.2 80 185 141

UMI-B1-UL [UL] (Three Phase 380 - 480 V)

Article Number Rated Output Power Rated Input Current Rated Output Current Dimensions W x H x D
kW HP A A mm mm mm
UMI-0007EU-B1 0.75 1 3.4 2.5 80 185 141
UMI-0015EU-B1 1.5 2 5 4.2 80 185 141
UMI-0022EU-B1 2.2 3 5.8 5.5 80 185 141

EMC Filters

The Manual for the below Filters can be downloaded HERE

This manual will also help select the correct filter for you inverter/ environment but if you need any further assistance feel free to contact us at i4 Automation for support on any Unitronics product.

Filter Line Voltage Current A Side IEC/EN 61800-3 Environment
UMI-S0020 1Ph 220VAC 10  Input C2
UMI-S0021 1Ph 220VAC 25  Input C2
UMI-S0022 3Ph 380VAC 6  Input C2
UMI-S0023 3Ph 380VAC 16  Input C2
UMI-S0024 3Ph 380VAC 32  Input C2
UMI-S0025 3Ph 380VAC 45  Input C2
UMI-S0026 3Ph 380VAC 65  Input C2
UMI-S0027 3Ph 380VAC 100  Input C2
UMI-S0028 3Ph 380VAC 150  Input C2
UMI-S0029 3Ph 380VAC 240  Input C2
UMI-S0030 1Ph 220VAC 4  Input C3
UMI-S0031 3Ph 380VAC 7  Input C3
UMI-S0032 3Ph 380VAC 6 Output C2
UMI-S0033 3Ph 380VAC 16 Output C2
UMI-S0036 3Ph 380VAC 32 Output C2
UMI-S0037 3Ph 380VAC 45 Output C2
UMI-S0038 3Ph 380VAC 65 Output C2
UMI-S0039 3Ph 380VAC 100 Output C2
UMI-S0040 3Ph 380VAC 150 Output C2
UMI-S0041 3Ph 380VAC 240 Output C2
UMI-S0250 3Ph 380VAC 400  Input C2
UMI-S0251 3Ph 380VAC 600  Input C2
UMI-S0300 3Ph 380VAC 400 Output C2
UMI-S0301 3Ph 380VAC 600 Output C2



Input Voltage 200-240VAC, Single Phase
200-240VAC, Three Phase
380-440VAC, Three Phase
Input Frequency 50/60Hz
Supported Motors Asynchronous Induction Motors, Three Phase Input
Overload Capacity 150%, 60 seconds
180%, 10 seconds
200%, 1 second



Control Method SVPWM (Space Vector PWM)
SVC (Sensorless Vector Control)
Control Setting MODBUS, Analog, Digital, PID, Pulse
Communication MODBUS RTU RS-485
Keypad Film Keypad: <4kW (5HP)
Removable: ≥4kW (5HP)



Analogue Inputs Total 2:

1x 0-10V/0-20mA Input

1x 0-10V Input

Digital Inputs Total 5:

4x 1kHz inputs

1x 50kHz input



Analogue Outputs 2 Outputs 0-10V, 0-20mA
Digital Outputs 1 output sink/source
Relay Outputs Total 2 Programmable Multi-functional outputs



Dynamic Braking Unit Built-in(≤37kW/50HP)
Optional (>37kW/50HP)
Built-in C3 (≥4kW/5HP), Comply with IEC/EN 61800-3
Optional C3 (<4kW/5HP), Comply with IEC/EN 61800-3
Optional C2, Comply with IEC/EN 61800-3



Operating Temperature (-10)°C/14°F – 50°C/122°F (de-rated by 1% for every 1°C/2°F above 40°C/104°F)
Altitude 2000m/6600 ft (de-rated by 1% for every additional 100m/330ft above 1000m/3300ft)
Enclosure Rating IP 20
Mounting Options Wall and Rail (≤2.2kW/3HP)
Wall and Flange (>2.2kW/3HP)
Cooling Air-Cooling
Safe Torque Off No
Compliance CE, UL and cUL

Optional Parts

Below is a list of optional parts that can be added to the VFD / Inverter to give extra functionality
External Keypads, Filters, Braking resistors, Flange Mounting Pole etc.

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