Unidrive M Modular

Highly reliable drive modules, flexible system design, and rapid global support

Unidrive M High Power Modular AC Drives

125 hp – 4,200 hp (0.75 kW – 2.8 MW)
208 - 240 V | 380 - 480 V | 575 V | 690 V

Unidrive M’s modular AC drive offering provides a flexible method of building compact, reliable high-power solutions. Paralleled together, Unidrive M can control induction and permanent magnet motors in systems up to 2.8 MW (4,200 hp).

Unidrive M differentiates itself on performance with extremely fast current control algorithms and high switching frequencies. Active Front End (AFE) solutions deliver unparalleled high performance regenerative control and ultra-low harmonic power quality.

The Unidrive M power modules can be paralleled into a wide range of flexible solutions to solve all system needs including Active Front End and multi-pulse rectifier configurations. They can be controlled by M600, M700, M701 and M702 controllers.

  • Features
    Minimize downtime for critical operations
    • Unidrive M high power modules have exceptional build quality based on over 40 years' of AC drive knowledge, expertise and development
    • Nidec Automation Centers are situated in all global regions to provide local design consultation and rapid specialist technical support
    • The modular design provides easy and rapid change out in the event of an emergency situation

    Reliability assured
    • Every Unidrive M high power module has been thoroughly tested in environmental chambers that cycle a wide range of load and thermal conditions
    • PCBs have conformal coating to further increase resilience to harsh environmental conditions
    • Trip avoidance features take intelligent action instead of interrupting critical processes
    • Protection alarms safeguard the wider system
    • Intelligent variable speed fans ensure operating temperature stays within limits
    • Wide supply voltage tolerance keeps drive operation smooth in areas where supplies are variable

    Create flexible systems easily
    • The modular approach to building high power systems provides machine builders with flexibility while keeping complexity low
    • Modules with integrated rectifiers and/or line chokes can be easily paralleled
    • Separate inverter and rectifier modules (D, RECT..A and RECT..T) can be paralleled into common DC bus and regenerative configurations

    Flexible and easy system design
    • Unidrive M high power modules are designed to fit in standard 600 mm deep x 400 mm wide (23.6 x 15.7 in) enclosures
    • 6,12,18 and 24 pulse input and Active Front End configurations are easy to achieve
    • Integrated cooling fan power supply means no additional power supplies are required
    • Output current ratings have been increased to use fewer modules per system
    • A common control interface ensures a consistent programming method and feature set across the whole Unidrive M range

    Make compact, easily maintainable systems
    • Overall system size and footprint is kept to a minimum
    • Manageable small and light modules are maintained and replaced rapidly and easily

    Reduce spares inventory

    Unidrive M’s modular approach gives customers the opportunity to standardize their solutions in order to keep spares holding to a minimum as different systems can be serviced using one common spare. Large volumes of standard product modules are stocked at local distribution hubs in convenient locations around the world meaning that rapid delivery is always available to all customers.

    Upgrade Unidrive SP modular systems painlessly

    Migration of Unidrive SP modular systems to Unidrive M is fast and easy:

    • Parameter porting tools such as Connect and Smartcard are available
    • SyptPro can recompile SM-Applications programs for SI-Applications, and can connect to existing CTNet networks
    • Identical width and depth dimensions, along with retrofit kits, mean that Unidrive M modules can easily fit into SP modular locations using existing fittings

    Environmental safety and electrical conformance
    • UL listed
    • Electromagnetic immunity complies with EN 61800-3 and EN 61000-6-2
    • Electromagnetic emissions comply with EN 61800-3:
      • Onboard EMC filter, category C3
      • Optional external EMC filter, category C2 depending on power rating
      • Compliance with EN 61000-3-12 with external line reactor

    Create high performance solutions
    • Switching frequencies of up to 16 kHz in systems up to 250 hp (160 kW) and 8 kHz in systems up to 400 hp (250 kW) allow Unidrive M to provide precision torque control
    • Highly accurate thermal model ensures:
      • High overload capability – 150% Heavy Duty
      • Impressive low derating requirement in applications that demand high torque at low speeds. Power device temperature is intelligently managed meaning smaller lower priced systems can be specified and product life is extended
    • Dynamic Active Front End configurations provide:
      • Precision torque linearity across quadrants
      • Corrective power factor operation (lagging, unity or leading) for high quality power
      • Harmonic mitigation
  • Specifications
    Key data

    Heavy Duty rating: 125 hp – 4,200 hp (90 kW – 2.8 MW)

    Supply phases: 3 phase

    Control connections: Drive control module dependent

    • M700 and M701 control modules: 3 x Analog inputs, 3 x Digital inputs, 2 x Analog outputs, 3x Digital I/O, 1 STO, 1 x Relay
    • M702 control module: 3 x Digital inputs, 3 x Digital output, 2 x STO, 1 x Relay
    • M600 control module: 3 x Analog inputs, 4 x Digital inputs, 2 x Analog outputs, 3 x Digital I/O, 1 x Digital output, 1 x Relay

    Feedback: Drive control module dependent

    • M700, M701 & M702 control modules: 2 x Encoder inputs, 1 x simulated encoder output
    • M600 control module: SI-UNI-ENCODER or SI-ENCODER module required for closed loop induction motor control

    Intelligence: Onboard PLC and Advanced Motion Controller Drive control module dependent (AMC only applicable to M700, M701 & M702 control modules)

    Onboard communications: Drive control module dependent

    • M700 and M702 control modules: Ethernet (EtherNet/IP, Modbus TCP, RTMoE)
    • M600 and M701 control modules: RS485 (Modbus RTU)

    Machine safety: Drive control module dependent, SIL3/PLe compliant

    • M600, M700 & M701 control modules: Single Safe Torque Off (STO) terminal
    • M702 control modules: Dual Safe Torque Off (STO) terminals

    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, and 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


    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 Type approval certificate No. TAE00001U5. M700 400 V and 690 V models

    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


    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 Unidrive-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







    1108 x 310 x 290 43.62 x 12.21 x 11.4
    9E | 9T 1069 x 310 x 290 42.1 x 12.2 x 11.4

    10E | 10T

    1069 x 310 x 290 42.1 x 12.2 x 11.4

    11E | 11T

    1242x 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 312 34 x 12.2 x 12.3


    6 pulse

    355 x 310 x 290

    6 pulse

    15.8 x 12.2 x 11.4

    11A | 11T

    6 pulse

    415 x 310 x 290

    12 pulse

    415 x 310 x 290

    6 pulse

    16.3 x 12.2 x 11.4

    12 pulse

    16.3 x 12.2 x 11.4


    Dimensions include mounting brackets.

  • 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

    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).

    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

    Quadrature encoder input interface module.

    SI-Universal Encoder

    Universal encoder input and output interface supporting Quadrature, SinCos, EnDat and SSI encoders

    System Integration Modules - Communications

    PROFIBUS interface module


    DeviceNet interface module


    CANopen interface module supporting various profiles, including several drive profiles


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


    PROFINET RT interface module


    EtherCAT interface module

    System Integration Modules - Applications
    SI-Application Plus Module

    Second processor module, which allows SyPTPro application programs to be re-compiled for Unidrive M700.

    MCi200 Machine Control

    Second processor, providing advanced machine control using Machine Control Studio.

    MCi210 Machine Control

    Adds to the MCi200 with a dual port Ethernet interface directly on the processor and additional I/O

    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 memory device to backup and copy parameter sets and basic PLC programs.

    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 interface units - Communications
    KI-485 Adaptor

    This allows the drive to communicate via RS485. This is commonly used to connect to a PC via Modbus RTU RS485 connection for use with Unidrive M's PC tools.

    Control Techniques USB Cable
    CT-USB Comms cable

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

  • 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
  • Downloads
    Did you find what you wanted? If not submit a support request using our technical support ticketing system.

This website uses cookies to ensure you get the best experience on our website. Learn More