SINAMICS S120 Cabinet Modules, air-cooled and liquid-cooled

SINAMICS S120 Cabinet Modules are the components of a modular cabinet system for multi-motor drives with a central supply infeed and a common DC link busbar, as used, for example, in the process industry, automotive industry, metal processing industry as well as in the crane and mining domains. They are available in air-cooled or liquid-cooled versions. As standard, they are installed side by side in a row. Other installation types (e.g. back to back) are possible on request. SINAMICS S120 Cabinet Modules include the chassis units from the SINAMICS S120 series in booksize format (Motor Modules) and chassis format, thus making the range an ideal supplement to the SINAMICS G150 and SINAMICS S150 cabinet converter series for single-motor drives.

All drive components, from the supply infeed to the motor-side converters, are configured in a clear, compact layout in the individual Cabinet Modules. They can be flexibly combined and optimally adapted to customer-specific requirements thanks to a comprehensive array of options.

The main components of the air-cooled system are as follows:

• Line Connection Modules with line-side components such as contactors, fuses and circuit breakers, as well as line reactors for Basic Line Modules
• The following types of infeed Line Modules:
  • Basic Line Modules for two-quadrant operation
  • Smart Line Modules for four-quadrant operation
  • Active Line Modules for four-quadrant operation with negligible line harmonics
• Central Braking Modules for braking operation
• The following types of Motor Modules:
  • Booksize Cabinet Kit
  • Chassis
• Control Units
• Auxiliary Power Supply Modules to supply the auxiliary power supply system

The main components of the liquid-cooled system are as follows:

• Active Line Connection Modules as a combination of Line Connection Module and Active Line Module with an Active Interface Module
• Basic Line Connection Modules as a combination of Line Connection Module and Basic Line Module
• Motor Modules
• Control Units
• Auxiliary Power Supply Modules to supply the auxiliary power supply system
• Heat Exchanger Modules with pumps, closed-loop control and a heat exchanger between the deionized water and raw water circuits

Standardized interfaces for both the power and the control connections facilitate engineering and installation. Communication between the power units and the central Control Unit takes place via DRIVE‑CLiQ, the internal drive serial interface.

Example of a drive line-up with SINAMICS S120 Cabinet Modules for a multi-motor drive

The following tables provide an overview of the voltage ranges and power ratings of the available SINAMICS S120 Cabinet Modules.

Voltage ranges and powers for air-cooled SINAMICS S120 Cabinet Modules

¹⁾ The power can be increased by connecting up to four identical modules in parallel.

Voltage ranges and power ratings for liquid-cooled SINAMICS S120 Cabinet Modules

¹⁾ The power can be increased by connecting up to four identical modules in parallel.