Unidrive M600 AC Drives

High performance drive for induction and sensorless permanent magnet motors

Unidrive M600 VFD

1 hp – 4,200 hp (0.75 kW – 2.8 MW) NormalDuty
1.5 hp – 450 hp (1 kW – 2.8 MW) Heavy Duty

208 - 240 V | 380 - 480 V | 575 V | 690 V

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 Drives
    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 Safety
    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.

  • Specifications
    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.

  • Features
    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.

  • Options



    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, plus a battery operated real-time clock. This allows accurate time stamping of events, aiding diagnostics.

    Control Techniques Remote Keypad

    Remote keypad

    Remote mountable, three line, plain text, multi-language LCD keypad for rapid setup and helpful diagnostics maximizes machine up-time. This allows flexible mounting on the outside of a panel and meets IP66 (NEMA 4); requires RS485 connection.

    Remote Keypad-RTC

    The keypad is remote mountable, allowing flexible mounting on the outside of a panel (meets IP54/ NEMA 12). Three line multi-language plus custom text LCD keypad for rapid setup and helpful diagnostics. Battery operated real-time clock allows accurate time stamping of events, aiding diagnostics.

    System Integration Modules - Feedback
    SI-Encoder Feedback System Integration Module 

    Quadrature encoder input interface module; required for closed loop induction motor control on Unidrive M600.

    SI-Universal Encoder Feedback System Integration Modules 

    Universal encoder input and output interface supporting Quadrature, SinCos, EnDat, and SSI encoders; required for closed loop induction motor control on Unidrive M600.

    System Integration Modules - Communications
    SI-Profibus Communication System Integration Modules 

    PROFIBUS interface module

    SI-Devicenet Communications System Integration Module 

    DeviceNet interface module

    SI-CANopen Communication System Integration Module 

    CANopen interface module supporting various profiles, including several drive profiles.

    SI-Ethernet Communication System Integration Module 

    Ethernet module that supports EtherNet/IP, RMToE and Modbus TCP/IP

    SI-Profinet Communications System Integration Module

    PROFINET RT interface module

    SI-EtherCAT Communications System Integration Module 

    EtherCAT 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 Analog inputs (default) / digital inputs, 1 x Analog output (default) / Digital input, 2 x Relays

    System Integration Modules - Safety

    SI 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 - Backup



    Smartcard 8k memory device to backup and copy parameter sets and basic PLC programs. SMARTCARD-64 has 64k of memory.


    SD Card Adaptor

    Allows an SD card to be inserted into the Smartcard slot, for parameter backup cloning and application programs (SD card not included)

    Drive Communication Adaptor


    KI-485 Adaptor

    This allows the drive to communicate Modbus RTU via RS485 connections. This adaptor is commonly used for connecting Connect to configure the drive if no keypad is present.

    Control Techniques USB Cable
    CT USB Comms cable

    The USB Communications cable allows the drive to connect to a PC via a Modbus RTU RS485 connection for use with Unidrive M's PC tools.

  • Software
    Commissioning and monitoring software

     Control Techniques Unidrive M Connect Software

    Connect - Commissioning tool

    Based on Control Techniques’ 25 years experience, Unidrive M Connect is our latest drive configuration tool for commissioning, optimizing and monitoring drive/system performance

    Learn More
    Automation and motion programming software

    Control Techniques Machine Control Studio Software

    Machine Control Studio - Programming Tool

    Control Techniques Machine Control Studio provides a flexible and intuitive environment for programming Unidrive M’s new automation and motion control features

    Learn More
    HMI software
    Control Techniques HMI Software
    CTVue HMI Software

    Control Techniques CTVue human interface software tool enables the operator to easily configure drive-related control variables.

    Learn More



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