Unidrive M600 AC Drive
Unidrive M600 VFD
High performance drive for induction and sensorless permanent magnet motors
1 hp – 4,200 hp (0.75 kW – 2.8 MW) Normal Duty
1.5 hp – 450 hp (1 kW – 2.8 MW) Heavy Duty
208 - 240 V | 380 - 480 V | 575 V | 690 V
  • Overview
  • Specifications
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Control Techniques’ Unidrive M600 variable speed AC drive (VFD) delivers increased machine performance with sensorless induction and sensorless permanent magnet motor control for dynamic and efficient machine operation. An optional encoder port can be used for precise closed loop velocity applications and digital lock/frequency following for induction motors.

Additional I/O, encoder feedback options, industry standard fieldbuses and Ethernet communications maximize system connectivity and flexibility


High power modular drives

Unidrive M’s modular offering gives you never before seen flexibility in building compact, reliable high-power solutions. Paralleled together, Unidrive M can control asynchronous and synchronous motors up to 2.8 MW (4,200 hp). At the top of the modular drives range, the Frame 12 is a 500 kW (700 hp) single module that delivers unmatched power density, while keeping both footprint and system costs to a minimum. The Unidrive M modules can be paralleled together into a wide range of flexible solutions to solve all system needs, including Active Front End and multi-pulse rectifier configurations.

Efficient system build

Designing and building a high power drive cubicle takes immense engineering knowhow. Most people don’t have that expertise in-house, but we do. And we’ve put it all into our DFS freestanding drives. The cubicle system is designed to make the most of our high power modular drives, benefiting the applications that need them the most. The results are maximum energy efficiency in an ingress protected package. Our cubicle drives come pre-assembled, easy to set up, with all necessary system components included. Furthermore, we can ship your Freestanding drive to you with a very short lead time, saving weeks on typical industry standards.


Functional Safetyfunctional-safety

All Unidrive M drives have integrated dual Safe Torque Off (STO) inputs, certified to SIL3 / PLe, providing an elegant and reliable safety solution. 
The addition of an MiS210 safety option extends the built-in STO with the ability to safely monitor and/or restrict the scope of motion. 
Safety functions include: STO, SBC, SOS, SS1, SS2, SLS, SSM, SLA, SDI, SLP & SES
For maximum flexibility in the safety system architecture, the modules support both wired and network safety connections: CIP-Safety on EtherNet/IP and Safety over EtherCAT (FSoE).
To find out more, visit our Functional Safety page.



Enhanced throughput with high performance open-loop control of induction and permanent magnet motors

  • Advanced Rotor Flux Control (RFC) algorithm gives maximum stability and control of induction and permanent magnet motors.
  • High bandwidth motor control algorithm with 62.5µs current loop update rates for accurate motor control.
  • 200% motor overload suitable for heavy industrial machinery applications.

Reduce system costs by directly integrating with applications

  • Unidrive M600 incorporates an onboard PLC which can execute Machine Control Studio programs for logic control, sequencing, speed following and digital lock - removing the need for additional PLCs.
    • Complete IEC 61131-3 programming environment. Structured text (ST), function block (FBD), sequential function chart (SFC), ladder diagram (LD), instruction list (IL), and continuous function chart (CFC)
  • Fit up to three SI modules to add safe motion, speed feedback, additional I/O, fieldbus, and Ethernet communications.


Conform to safety standards, maximize uptime and reduce costs by integrating directly with safety systems

Unidrive M600 has an integrated Safe Torque Off (STO) input and can accommodate an SI-Safety module for safe motion functions.



  Connect - intuitive commissioning software
Connect is our latest drive configuration tool for commissioning, optimising and monitoring drive/system performance.
Learn More
machine-control-studio-icon  Machine Control Studio - programming tool
Control Techniques' Machine Control Studio provides a flexible and intuitive environment for programming new automation and motion control features.
Learn More

Key data

  • Single drive Heavy Duty ratings:
    • 230 V: 1.0 hp to 125 hp (0.75 kW to 90 kW)
    • 460 V: 1.0 hp to 400 hp (0.75 kW to 250 kW)
    • 575 V: 2.0 hp to 300 hp (1.5 kW to 225 kW)
    • 690 V: 20 hp to 300 hp (15 kW to 250 kW)

  • Single drive Normal Duty ratings:
    • 230 V: 1.5 hp to 150 hp (1.1 kW to 110 kW)
    • 460 V: 1.0 hp to 450 hp (0.75 kW to 280 kW)
    • 575 V: 3.0 hp to 350 hp (2.2 kW to 250 kW)
    • 690 V: 25 hp to 400 hp (18.5 kW to 280 kW)

  • Modular drive ratings:
    • 1.5 hp to 4,200 hp (1.0 kW to 2.8 MW)

  • Supply phases:
    • 230 V – 3Ø: Frame size 3 to 10
    • 460 V – 3Ø: Frame size 3 to 11
    • 575 V – 3Ø: Frame size 5 to 11
    • 690 V – 3Ø: Frame size 7 to 11

Control connections: 3 x Analog inputs, 4 x Digital inputs, 2 x Analog outputs, 3 x Digital I/O, 1 x Digital output, 1 x Relay

Intelligence: Onboard PLC

Onboard communications: Modbus RTU via dual RS485 ports

Machine Safety: Single Safe Torque Off - SIL3/PLe compliant

Keypad: No keypad (standard)

  • KI-KEYPAD-LCD: Plain-text, multi-language LCD keypad for in-depth parameter and data descriptions for enhanced user experience
  • KI-KEYPAD-RTC: All the features of KI-Keypad-LCD, plus a battery operated real-time clock which allows accurate time stamping of events, aiding diagnostics
  • REMOTE-KEYPAD: Remote mountable, plain-text, multi-language LCD keypad allows flexible mounting outside of a panel and meets IP66 (NEMA 4)
  • REMOTE-KEYPAD-RTC: The keypad is remote mountable, enabling flexible mounting on the outside of a panel (meets IP54/ NEMA 12). Three line plain text, multi-language LCD keypad for rapid set-up and helpful diagnostics. Battery operated real-time clock allows accurate time stamping of events, aiding diagnostics.

System Integration options slots: 3

Parameter cloning: PC tools, Smartcard, SD card


100 V (100 V - 120 V ± 10%)

200 V (200 V - 240 V ± 10%)

400 V (380 V - 480 V ± 10%)

575 V (500 V - 575 V ± 10%)

690 V (500 V - 690 V ± 10%)


Open-loop vector or V/Hz induction motor control

Open-loop Rotor Flux Control for induction motors (RFC-A)

Open-loop permanent magnet motor control (RFC-S)

Closed-loop Rotor Flux Control for induction motors (RFC-A)


Closed-loop permanent magnet motor control (RFC-S)

Active Front End (AFE) power quality convertor

*Requires SI-ENCODER or SI-UNI-ENCODER option module

Approval & Listings


USA and Canada (cUL Listed). UL File number: E171230


European Union
All applicable directives and regulations LVD, EMD, RoHS, REACH, Energy related products


United Kingdom (all applicable regulations)


Australia and New Zealand (Responsible Supplier Registration No. E6934)


Russian Customs Union. All Unidrive-M models

DNV Marine approval 400 V and 690 V models only. Type approval certificate No.TAE00001U5

Functional Safety

Safe Torque Off function.
TÜV Rheinland Type Examination Certificates: 
01/205/5270.02/17 (Unidrive-M and derivative products)
01/205/5409.02/21 (SI-Safety  option module)
01/205/5720.00/19 (MiS210, MiS250 option modules)

The safety function "Safe Torque Off" can be used in applications up to Cat 4. PL e according to EN ISO 13849-1, SIL 3 according to EN 61800-5-2/ EN 62061/ IEC 61508, and in lift applications according to EN 81-1 and EN81-2.
UL Functional Safety Unidrive-M all products

File E171230     Vol. 11  Sec. 1 Issued:  2015-01-22
Compliance with specific requirements of NFPA 79 

Functional Safety
for Elevators

TÜV Nord certificate: 44 799 17002402 (Frequency converters with Safe Torque Off function for lift drives)


Quality system: ISO 9001 (Certificate Nos. FM 739405)
Environmental management system: ISO 14001 (Certificate No. EMS 739789)
Occupational health and safety: ISO 45001 (Certificate No. 5430)

China RoHS

Chinese Order No. 32, 2016; Administrative Measures for the Restriction of Hazardous Substances in Electrical and Electronic Equipment (China RoHS 2)

EPA TSCA regulations

All Commander and Uni-M products
U.S. Environmental Protection Agency (“EPA”) recently promulgated regulations under the Toxic Substances Control Act (“TSCA”)

IHM, Basel convention,

MEPC 68/21 / Add.1, Annex 17, Resolution MEPC.269(68) 2015 Guidelines for the development of the inventory of hazardous materials.

Responsible Minerals Initiative (RMI)

CMRT compliance

Weights & Dimensions




WEIGHT kg / (lb)






382 x 83 x 200 15.0 x 3.3 x 7.9 4.5 Max 9.9 Max


391 x 124 x 200 15.4 x 4.9 x 7.9 6.5 14.3


391 x 143 x 200

15.4 x 5.6 x 7.6




391 x 210 x 227 15.4 x 8.3 x 8.9 14 30.9


557 x 270 x 280 21.9 x 10.6 x 11.0 28 61.7


803 x 310 x 290 31.6 x 12.2 x 11.4 52 114.6


1108 x 310 x 290 43.6 x 12.2 x 11.4 66.5 146.6


1069 x 310 x 288 42.1 x 12.2 x 11.3 46 101.4


1069 x 310 x 288 42.1 x 12.2 x 11.3 46 101.4


1410 x 310 x 310 55.5 x 12.2 x 12.2 63 138.9

 All dimensions include mounting brackets








1108 x 310 x 290 43.62 x 12.21 x 11.4

9E | 9T

1069 x 310 x 290 42.1 x 12.21 x 11.4
10E | 10T 1069 x 310 x 290 42.1 x 12.21 x 11.4

11E | 11T

1242 x 310 x 312 48.9 x 12.2 x 12.3


773 x 310 x 290 30.4 x 12.2 x 11.4


773 x 310 x 290 30.4 x 12.2 x 11.4


863 x 310 x 290 34 x 12.2 x 12.3


6 pulse
355 x 310 x 290
6 pulse
13.9 x 12.2 x 11.4

11A | 11T

6 pulse
415 x 310 x 290
415 x 310 x 290
6 pulse
16.3 x 12.2 x 11.4
12 pulse
16.3 x 12.2 x 12.211.4

Dimensions include mounting brackets

Contact a sales representative for details.



Remote Keypad RTC

The keypad is remote mountable, allowing flexible mounting on the outside of a panel (meets IP54/NEMA 12). Three line plain text, multi-language LCD keypad for rapid set-up and helpful diagnostics. Battery operated real-time clock allows accurate time stamping of events, aiding diagnostics
*For M700 and M702 variants the KI-485 Adaptor is also required for connection purposes.


Remote Keypad

All the features of the CI-Keypad LCD, but remote mountable. This allows flexible mounting on the outside of a panel and meets IP66 (NEMA 4)

*For M700 and M702 variants the KI-485 Adaptor is also required for connection purposes.


Plain text, multi-language LCD keypad with up to 4 lines of text for in depth parameter and data descriptions, for enhanced user experience


KI-Keypad RTC
All the features of the KI-Keypad, but with battery operated realtime clock. This allows accurate time stamping of events, aiding diagnostics

System integration modules - feedback

Quadrature encoder input interface module

SI-Universal Encoder
Encoder input and output interface supporting Quadrature, SinCos, EnDat and SSI encoders

System integration modules - communications

Connects Unidrive, Commander, Digitax and the Pump Drive families to all POWERLINK networks. SI-POWERLINK serves applications ranging from simple open-loop systems through to those demanding precise motion control. The protocol is based upon standard Ethernet and provides a solution for real-time Industrial Ethernet to satisfy the requirements of industrial automation and process control
PROFIBUS interface module
DeviceNet interface module
CANopen interface module.

External Ethernet module that supports EtherNet/IP and Modbus TCP/IP
EtherCAT interface module

PROFINET interface module

Interbus interface modules.

System integration modules - additional I/O

Extended I/O interface module to increase the number of I/O points on a drive. Provides additional: 4 x Digital I/O, 3 x Analogue inputs (default)/Digital inputs, 1 x Analogue output (default)/Digital input, 2 x Relays


System integration modules - safety

An intelligent, programmable module to meet the IEC 61800-5-2/ISO 13849-1 functional safety standard up to SIL3/PLe


Drive interface units - back-up

The optional Smartcard memory device can be used to back-up parameter sets, as well as copying them from one drive to another
  SD Card Adaptor
Conversion device that allows an SD card to be inserted into the Smartcard slot, for parameter cloning and application programs


Drive interface units - communications

KI-485 Adaptor
This allows the drive to communicate via RS485. This is commonly used for programming if the drive has no keypad
CT USB Comms Cable
The USB Comms cable allows the drive to connect to a PC for use with Unidrive M's PC tools*

* Also requires an adaptor.


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