Siemens Answers with SINAMICS S120 Combi Drive Designed for Milling and Turning Applications


SINAMICS S120 Combi offers the tried-and-tested SINAMICS functionality with an integrated drive concept specifically matched to compact turning and milling machines. With a multitude of technical highlights, SINAMICS S120 Combi sets new standards in this drive class. SINAMICS S120 Combi combines regenerative power supply as well as 3 or 4 motor modules for spindle and feed motors in one power module. In addition, SINAMICS S120 Combi features a connection terminal for a TTL encoder. This facilitates the spindle encoder’s direct and cost-efficient connection without additional hardware.

Note that the SINAMICS S120 Combi is available only when paired with Siemens SINUMERIK 828D and in some instances SINUMERIK 840D sl.


  • Optimum dynamics and precision in a compact and integrated drive design
- with valuable features such as Dynamic Servo Control (DSC), 80-bit NANOFP accuracy and a high speed DRIVE-CLiQ communication interface

  • Maximum performance in minimum space

  • Uncompromising ruggedness
- caused by optimum protection against condensation, insensibility against weak power supply, and protection against short circuit, overvoltage, and ground faults.

  • Perfectly expandibility
- by easy connection of up to two additional SINAMICS S120 motor modules and by arbitrarily interpolation of the additional axes with the axes of SINAMICS S120 Combi.

Safety Integrated Technology

Safety is a primary issue in applications employing high performance drives.

Technical Information

Voltage ranges

3AC 380 - 480 V*

Current ranges

With 3 motor modules (spindle / servo 1 / ...):

18 / 5 / 5 A,  24 / 9 / 9 A,  30 / 9 / 9 A

With 4 motor modules:

18 / 5 / 5 / 5 A,  24 / 9 / 9 / 9 A,  30 / 9 / 9 / 9 A

Detailed ratings depend on specific design.


SINAMICS S120 Combi is specifically matched to compact turning and milling CNC machines

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