New servomotor modular design

Same shell, different motors

We have expanded our CM3... servomotor modular design for you. From 2025, two motor variants will now be available to you. Both motor types are characterised by high power density, compactness and precision. The difference lies in the load to be moved, for which the motors are optimized. Discover your optimum solution in the modular servomotor range.

The motor type CM3C.. (Medium Inertia) motor type has increased inertia and therefore enables high external loads to be moved safely, quickly and reliably. In combination with the optional BZ.. safety brake with increased working capacity, it is the ideal solution for hoist applications in particular.

New in the modular design is the motor type CM3P... (High Dynamic) with outstanding dynamics for the shortest cycle times. High power density and maximum acceleration values are the hallmarks of this type. Thanks to minimal inertia and high overload capacity, the shortest cycle times can be realised, thus increasing the efficiency of your machine.

Both motor variants can be combined modularly and individually with all gear unit designs from SEW-EURODRIVE. In addition, both motor types can be expanded with the same accessories and options from the modular design. This means that you also have a highly flexible modular design for synchronous servomotors, from which you can find the right servomotor in the required design for almost any dynamic application.

External consistency, internal revolution - motors with new technology!

The synchronous servomotors look the same on the outside, but a revolutionary change is hidden inside. Thanks to the latest winding and magnet technology, the dimensions remain identical, but two different motor variants are created. This allows you to choose the right drive with the same motor geometry, regardless of whether dynamics or high loads are required.

Detailed technical information on the two motor versions:

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The modular principle offers you these added values

  • The modular system enables customised adaptations. It offers modularly assembled synchronous servomotors customised to your application with matching gear units, accessories and options.
    • Direct gearbox mounting: direct mounting of standard or precision gear units for a compact and space-saving solution
    • Choice between two brake systems: Permanent magnet holding brake and spring-loaded brake with increased working capacity for maximum safety and power rating
    • Reduced commissioning times thanks to digital motoring operation and data integration (incl. single-cable technology).
  • A global network of production and assembly centres ensures optimum logistics conditions and the shortest possible delivery times.
  • end-to-end service concept with comprehensive service offers and tools from planning to maintenance

MOVIKIT® software modules

MOVIKIT® are ready-made software modules that are used to solve everything from simple drive functions to sophisticated motion control functions. Our objective - your added value: to significantly reduce start-up times by providing configurable automation and motion control functions.

  • MOVIKIT® Robotics includes MOVIKIT® software modules for robot controllers.
  • MOVIKIT® MultiAxisController comprises MOVIKIT® software modules for centralised open-loop control of any number of mechanically coupled drives.
Find out more about MOVIKIT®

Single-cable technology for power supply and data transmission with digital encoder for synchronous motors

Digital motoring operation and data integration is possible thanks to the MOVILINK® DDI digital interface. This is based on single-cable technology. Our motors and inverters from the MOVI-C® modular automation system actually only require one hybrid cable for power supply and data transmission. The hybrid cable supplies the motor with current and MOVILINK® DDI, a digital encoder, transmits all the necessary power, brake and diagnostic data between the inverter and motor. This saves you time and money during installation and startup.

Find out more about single-cable technology

Functional safety

The two motor versions in the CM3... series are also available with a safety brake and safety encoder on request. These can be integrated into the servomotor individually or in combination.

The following safety functions can be realised with the safety brake:

  • SBA (Safe Brake Actuation)
  • SBH (Safe Brake Hold)

The safety encoders can be used to realise safety functions relating to rotational speed, direction of rotation, idle state and relative position, e.g. SS1, SS2, SOS, SLA, SLS, SDI and SLI in accordance with IEC 61800 5-2.

International regulations

Depending on the country, the use of drive technology and drive electronics is subject to different functional and/or product-related requirements. When importing goods, for example, certain product labelling requirements must be met. Both "Medium Inertia" and "High Dynamic" synchronous servomotors have the required national product labelling.

Use in a wide range of ambient conditions

  • Degree of protection:
    • Standard IP65 according to EN 60529
    • optional IP66
  • Ambient temperature:
    • -20 °C to +40 °C (standard temperature range)
    • -20 °C to +60 °C (with derating for increased ambient temperature)
    • -40 °C to +10 °C (with measures for low temperature range)
  • Sustainability and high energy-saving potential:
    • Corresponds to energy efficiency class up to IE5 based on IEC TS 60034-30-2

Comprehensive accessories

  • Forced cooling fan for better thermal utilisation of the motor
  • Terminal box
  • Safety-rated design with brake and encoder
  • All current approvals
  • Optional encoder systems:
    • HIPERFACE® encoder with electronics nameplate
    • Two-cable technology
    • Scalable (128/1024 sin/cos)
    • Single and multi-turn
  • encoderless design with hybrid plug-in connection:
    • Single-cable technology
  • MOVILINK® DDI digital encoder interface:
    • Single-cable technology
    • Scalable (12 bit/18 bit)
    • Single and multi-turn
  • compatible external encoder systems:
    • DRIVE-CLiQ from for operation with common Sinumerik and Sinamics control systems from Siemens Aktiengesellschaft
    • EnDat 2.2 from DR. JOHANNES HEIDENHAIN GmbH
    • HIPERFACE DSL® from SICK AG