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Moving your Control Forward – VFD / Inverters from Unitronics


Unitronics launch a range of Variable Frequency Drives / Inverters

VFD Site Diagram VFD

This major release from Unitronics enables an all in one solution for motor and motion control using the same programming environment as your Unitronics PLCs.


Unitronics VFDs / Inverters can be used as a stand-alone product, or as part of a complete All-in-One package which seamlessly integrates with the PLC+HMI controllers: UniStream®, Vision™ and Samba™.



What is a VFD?

A Variable Frequency Drive (VFD) is a type of motor controller that drives a squirrel cage electric motor (most common standard electric motor) by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are Variable Speed Drive, Adjustable Frequency Drive, Adjustable Speed Drive, AC drive, Microdrive, and Inverter. The most common terms being VFD and Inverter (in the UK).

Frequency (or hertz) is directly related to the motor’s shaft speed and is measured in revolutions per minute (RPMs). In other words, the faster the frequency, the higher the RPM.
If an application does not require the electric motor to run at full speed, the VFD can be used to ramp down the frequency and voltage to meet the requirements of the application also giving a saving on power usage and increasing motor life (reduces heat). As the application’s motor speed requirements change, the VFD can simply turn up or down the motor speed to meet the speed requirement. For example, with a water pump- as the tank fills up the speed can be reduced.

How does a Variable Frequency Drive work?

Firstly, it is very complicated to alter a 50Hz alternating current frequency so we convert the AC in to DC using 6 diodes. This allows current to flow in one direction and providing a Direct Current (DC) power supply.
This current can then be switched (very quickly) to form a coarse AC current that we can control by the switching frequency. Capacitors are added to add some smoothing but in basic terms this is all an Inverter drive is doing. As the motor speed is directly proportional to the voltage and frequency applied it all becomes very simple. Then the Inverter drive manufacturers add lots of features to automate acceleration, declaration and ‘motor over current protection’ and it gets more complicated with lots of parameters to set up. I guess this is where we come in, guiding you through the process and integrating the VFD with the PLC & HMI to get all the information back to a central control place – the PLC.
For example, the UniStream PLC can be pre-programmed to configure all the required parameters on power up as well as being ready to monitor the drive parameters live - speeding up installation and reducing the cost of ownership.



UMI-B5 Series - UL

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Article Number

Input Voltage

Rated Output Power

Rated Input Current (A)

Rated Output Current (A)

Dimensions
(W x H X D mm)

kW

HP

UMI-0007CU-B5

Three phase 200-240V

0.75

1

5

4.5

126

193

175

UMI-0015CU-B5

1.5

2

7.7

7

146

263

181

UMI-0022CU-B5

2.2

3

11

10

146

263

181

UMI-0040CU-B5

4

5

17

16

170

332

216

UMI-0055CU-B5

5.5

7.5

21

20

170

332

216

UMI-0075CU-B5

7.5

10

31

30

230

342

216

UMI-0110CU-B5

11

15

43

42

255

407

384

UMI-0150CU-B5

15

20

56

55

255

407

384

UMI-0185CU-B5

18.5

25

71

70

270

555

325

UMI-0220CU-B5

22

30

81

80

270

555

325

UMI-0300CU-B5

30

40

112

110

270

555

325

UMI-0370CU-B5

37

50

132

130

325

680

365

UMI-0450CU-B5

45

60

163

160

325

680

365

UMI-0550CU-B5

55

75

200

200

325

680

365

UMI-0015EU-B5

Three Phase 380-480V

1.5

2

5

3.7

126

193

175

UMI-0022EU-B5

2.2

3

5.8

5

126

193

175

UMI-0040EU-B5

4

5

13.5

9.5

146

263

181

UMI-0055EU-B5

5.5

7.5

19.5

14

146

263

181

UMI-0075EU-B5

7.5

10

15

18.5

170

332

216

UMI-0110EU-B5

11

15

32

25

170

332

216

UMI-0150EU-B5

15

20

40

32

230

342

216

UMI-0185EU-B5

18.5

25

47

38

230

342

216

UMI-0220EU-B5

22

30

56

45

255

407

384

UMI-0300EU-B5

30

40

70

60

255

407

384

UMI-0370EU-B5

37

50

80

75

270

555

325

UMI-0450EU-B5

45

60

94

92

270

555

325

UMI-0550EU-B5

55

75

128

115

270

555

325

UMI-0750EU-B5

75

100

160

150

325

680

365

UMI-0900EU-B5

90

120

190

180

325

680

365

UMI-1100EU-B5

110

150

225

215

325

680

365



UMI-B1 Series - UL

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Article Number

Input Voltage

Rated Output Power

Rated Input Current (A)

Rated Output Current (A)

Dimensions
(W x H X D mm)

kW

HP

UMI-0004BU-B1

Single phase 200-240V

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-0004CU-B1

Three phase 200-240V

0.4

0.5

3.7

2.5

80

185

141

UMI-0007CU-B1

0.75

1

5

4.2

80

185

141

UMI-0007EU-B1

Three phase 380-480V

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



UMI-B1 Series - STO

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Open

Article Number

Input Voltage

Rated Output Power

Rated Input Current (A)

Rated Output Current (A)

Dimensions
(W x H X D mm)

Safety Class

kW

HP

UMI-0004BE-B1

Single phase 200-240V

0.4

0.5

6.5

2.5

80

160

124

Class PLd, SIL2 CAT.3

UMI-0007BE-B1

0.75

1

9.3

4.2

80

160

124

UMI-0015BE-B1

1.5

2

15.7

7.5

80

185

141

UMI-0022BE-B1

2.2

3

24

10

80

185

141

UMI-0007EE-B1

Three phase 380-440V

0.75

1

3.4

2.5

80

185

141

Class PLd, SIL2 CAT.3

UMI-0015EE-B1

1.5

2

5

4.2

80

185

141

UMI-0022EE-B1

2.2

3

5.8

5.5

80

185

141

UMI-0040EE-B1

4

5

13.5

9.5

146

256

167

Class PLe, SIL3 CAT.3

UMI-0055EE-B1

5.5

7.5

19.5

14

146

256

167

UMI-0075EE-B1

7.5

10

25

18.5

170

320

197

UMI-0110EE-B1

11

15

32

25

170

320

197

UMI-0150EE-B1

15

20

40

32

170

320

197

UMI-0185EE-B1

18.5

25

47

38

200

341

185

UMI-0220EE-B1

22

30

51

45

200

341

185

UMI-0300EE-B1

30

40

70

60

250

400

202

UMI-0370EE-B1

37

50

80

75

250

400

202

UMI-0450EE-B1

45

60

98

92

282

560

238

UMI-0550EE-B1

55

75

128

115

282

560

238

UMI-0750EE-B1

75

100

139

150

282

560

238

UMI-0900EE-B1

90

120

168

180

338

554

330

UMI-1100EE-B1

110

150

201

215

338

554

330



Specification Table

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UMI-B1 EU

UMI-B1 UL

UMI-B5 UL

Power

Input
Voltage

200-240VAC, Single Phase
-
380-440VAC, Three Phase

200-240VAC, Single Phase
-
200-240VAC, Three Phase
-
380-440VAC, Three Phase

200-240VAC, Three Phase
-
380-440VAC, Three Phase

Input
Frequency

50/60Hz

Supported Motors

Asynchronous Induction Motors, Three Phase Input

Asynchronous Induction Motors, Three Phase Input
-
Permanent Magnet Synchronous Motors, Three Phase Input

0-400Hz

Overload
Capacity

150%, 60 seconds

180%, 10 seconds

200%, 1 second

Control

Control
Method

SVPWM (Space Vector PWM)
-
SVC (Sensorless Vector Control)

Control Setting

MODBUS, Analog, Digital, PID, Pulse

Comms

MODBUS RTU RS-485

Input

Analogue
Inputs

Total 2:
1 input = 0-10V / 0-20mA
-
1 input = 0-10V

Total 3:
2 inputs = 0-10V / 0-20mA
-
1 input = 0-10V

Digital
inputs

Total 5:
4 inputs = 1kHz
-
1 input = 50kHz

Total 9:
8 inputs = 1kHz
-
1 input = 50kHz

Output

Analogue
Outputs

Up to 2:
1st Output = 0-10V / 0-20mA ≤ 2.2kW/3HP
-
2nd Output available from > 2.2kW/3HP

Total 2:
Both Outputs = 0-10V / 0-20mA

Digital
Outputs

1 Output Sink / Source

Total 2:
1 Output = Sink / Source
-
1 Output = 50kHz

Relay
Outputs

Up to 2:
1 Programmable Multi-functional Output
2nd Output available from > 2.2kW / 3HP

Total 2:
Both = Programmable Multi-Functional Outputs

Features

Dynamic
Braking
Unit

Built-in(≤37kW/50HP)

Built-in(≤30kW40HP)

Optional (>37kW/50HP)

Optional (>30kW/40HP)

EMC

Built-in C3 (≥4kW/5HP), Comply with IEC/EN 61800-3

Built-in C3, Comply with IEC/EN 61800-3

Optional C3 (<4kW/5HP), Comply with IEC/EN 61800-3

Optional C2, Comply with IEC/EN 61800-3

General

Operating
Temp

(-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

IP20

Mounting Options

Wall and Rail (≤2.2kW/3HP)

Wall, Flange

Wall and Flange (>2.2kW/3HP)

Cooling

Air-cooling

Safe Torque Off

YES NO

Compliance

CE, TÜV-SUD Safety Mark CE, UL and cUL


Simplified workflow allows you 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.



Unitronics VFD/ Inverter range (UMI-BX-EU/UL-XXX)
Part Number Description

Installation Manual Tech Spec Manual

UMI-B1-EU-V1.2



Unitronics UMI-B1 EU Series VFD / Inverter

Installation manual


UMI-B1-UL-V1.0



Unitronics UMI-B1 UL Series VFD / Inverter

Installation manual


UMI-B5-UL-V1.0



Unitronics UMI-B5 UL Series VFD / Inverter

Installation manual

Unitronics VFD Additions
Description

Data Sheet

VFD Optional Parts



Optional Parts that can be added to the VFD / Inverter to give extra functionality
External Keypads, Filters, Braking resistors, Flange Mounting Pole etc.

Installation manual




Product Images

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VFD Family
Side
Front
DIN Mounted
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Need more Information?

Please feel free to pick up the phone or use the contact us page for a free no obligation demonstration, quotation or just a chat about your application and how it all works.