Unidrive HS70 High Speed AC Drives

Class leading open or closed loop control of high speed motors, with real-time Ethernet

Unidrive HS70 AC Drives

0 - 3,000 Hz Open-Loop
0 - 1,250 Hz Closed-Loop

1.0 - 4,200 hp (0.75 kW – 2.8 MW) Normal Duty
1.5 hp – 4,200 hp (1.0 kW – 2.8 MW) Heavy Duty

Unidrive HS70208 - 240 V | 380 - 480 V

Control Techniques’ Unidrive HS70 series high-speed variable frequency AC/Servo drives deliver enhanced control of high speed motors. Additionally, machine throughput is maximized through enhanced single axis control and multi-axis network synchronization. Onboard real-time Ethernet (IEEE 1588 V2), onboard Advanced Motion Controller, and high speed I/O for position capture enables machine builders to create more sophisticated and flexible machines.

The onboard Ethernet is also compatible with EtherNet/IP, Modbus TCP, and Real-Time Motion over Ethernet (RTMoE) for network flexibility.

To meet the needs of any application Unidrive M700 series is available in three variants:

  • Unidrive HS70: Onboard Ethernet and single STO input
  • Unidrive HS71: Onboard RS485 to upgrade from Unidrive SP, single STO input
  • Unidrive HS72: Onboard Ethernet, dual STO inputs

  • Features
    Maximize throughput with superior motor control
    • High bandwidth motor control algorithm for open and closed loop induction, synchronous permanent magnet, and servo motors with up to 3,000 Hz current-loop bandwidth and 250 Hz speed loop bandwidth for smooth, efficient motor control
    • Flexible speed and position feedback interface supports a wide range of feedback technologies from robust resolvers to high resolution encoders

    Optimize system performance with onboard Advanced Motor Controller
    • Unidrive HS70 series incorporates an Advanced Motion Controller capable of controlling 1.5 axes. The motion functions are carried out 'on the drive' so that system performance is maximized

    Design flexible centralized and decentralized control systems
    • MCi modules can be added to execute larger programs for advanced system control capability and can operate as network control masters
    • Onboard PLC for logic programs reduce or eliminate the need for external controllers
    • Machine Control Studiois an industry standard IEC61131-3 programming environment for efficient system design and configuration used to program the onboard PLC and the co-processor MCi module
      • 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)
    • Three System Integration module slots are available to fit additional fieldbus, Ethernet, position feedback, machine control, and expanded I/O options.

    Unidrive HS70 and Unidrive HS72 onboard communications

    • Integrated dual port Ethernet switch provides simple connectivity using standard connections
    • Onboard real-time Ethernet (IEEE 1588 V2) uses RTMoE (Real Time Motion over Ethernet) to provide fast communication and accurate axis synchronization
    • Onboard Ethernet supports EtherNet/IP and Modbus TCP communications

    Unidrive HS71 onboard communications

    • Integrated dual port RS485 provides Modbus RTU connectivity using standard connections

    Conform to safety standards, maximize uptime and reduce costs by integrating directly with safety systems
    • • Unidrive HS70 and Unidrive HS71 has an integrated Safe Torque Off (STO) input and can accommodate an SI-Safety module for safe motion functions; Unidrive HS72 variant has dual Safe Torque Off (2x STO)
  • Specifications
    Key data

    Single drive Heavy Duty ratings:

    • 230 V: 1.0 hp to 50 hp (0.75 kW to 37 kW)
    • 460 V: 1.0 hp to 125 hp (0.75 kW to 75 kW)

    Single drive Normal Duty ratings:

    • 230 V: 1.5 hp to 60 hp (1.1 kW to 45 kW)
    • 460 V: 1.0 hp to 150 hp (0.75 kW to 90 kW)

    Modular drive ratings:

    • 125 hp to 4,200 hp (1.0 kW to 2.8 MW)

    Control connections: Variant dependent

    • Unidrive HS70 and Unidrive HS71 models: 3 x Analog inputs, 3 x Digital inputs, 2 x Analog outputs, 3x Digital I/O, 1 STO, 1 x Relay
    • Unidrive HS72 model: 3 x Digital inputs, 3 x Digital output, 2 x STO, 1 x Relay

    Feedback: 2 x Encoder inputs, 1 x simulated encoder output

    Intelligence: Onboard PLC and Advanced Motion Controller (AMC)

    Onboard communications: Variant dependent

    • Unidrive HS70 and Unidrive HS70 models: Ethernet (EtherNet/IP, Modbus TCP, RTMoE)
    • Unidrive HS71 model: RS485 (Modbus RTU)

    Machine Safety: Variant dependent, SIL3/PLe compliant

    • Unidrive HS70 and Unidrive HS71 models: Single Safe Torque Off terminal
    • Unidrive HS72 model: Dual Safe Torque Off 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

    Functional Safety

    Safe Torque Off function.
    TÜV Rheinland Type Examination Certificates (includes HS70, HS71 and HS72):
    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 certificates: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 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









    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

    All dimensions include mounting brackets











    1108 x 310 x 290 43.62 x 12.21 x 11.4 66.5 146.6

    9E | 9T

    1069 x 310 x 290 42.1 x 12.2 x 11.4 46 | 60 101.4 | 132.3

    10E | 10T

    1069 x 310 x 290

    42.1 x 12.2 x 11.4

    46 | 60

    101.4 | 132.3 

    11E | 11T

    1242x 310 x 312 48.9 x 12.2 x 12.3 63 | 65 138.9 | 143.3



    773 x 310 x 290 30.4 x 12.2 x 11.4 34 75


    773 x 310 x 290 30.4 x 12.2 x 11.4 34 75


    863 x 310 x 312 34 x 12.2 x 12.3 42 92.6



    6 pulse

    355 x 310 x 290

    6 pulse

    15.8 x 12.2 x 11.4

    12 26.5

    11A | 11T

    6 pulse


    12 pulse


    6 pulse


    12 pulse


    21 | 23 46.3 | 50.7

    All dimensions include mounting brackets

  • Options
    Drive variants

     Unidrive HS70 Advanced Motion Controller

    Unidrive HS71 – Onboard Modbus RTU

    Unidrive HS71 has dual RS485 ports for onboard Modbus RTU communications.

     vfd with Advanced Motion Controller

    Unidrive HS72 – Onboard Ethernet, Dual Safe Torque Off

    Unidrive HS72 has dual STO inputs for applications that require onboard Ethernet and enhanced safety to comply with SIL3 or PLe.

    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.


    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.



    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 real-time 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



    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 


    Applications second processor module, which allows SyPTPro application programs to be re-compiled for Unidrive HS70.

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

    Drive interface units - Communications


    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 Modbus RTU RS485 connection for use with Unidrive HS’s PC tools.



    Operator Interfaces and HMI

    The powerful CTVue HMI (Human Machine Interface) line and integrated drivers for Control Techniques drives make it easy to integrate HMI with CT drives.

  • Software
    Commissioning and monitoring 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


    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
    CTVue HMI Software

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

    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