SINAMICS S120 Cabinet Modules are components forming part of a modular cabinet system for multi-motor drives with a central line infeed and a common DC busbar of the type typically used in, for example, paper-making machines, roller mills, test stands, or hoisting gear. As standard, they are installed side by side in a row. Other installation types (e.g. back to back) are possible on request. They 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 unit series for single-motor drives.

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

The main components of the 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.
• Line Modules for the infeed in the following variations:
  • 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 Kit
  • Chassis
• Control Units
• Auxiliary Power Supply Modules

Standardized interfaces for both the power and the control connections facilitate configuration and installation. Communication between the power modules 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 table provides an overview of the voltage ranges and power ratings of the SINAMICS S120 Cabinet Modules that are available:

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