Siemens SINAMICS S120 Equipment Manual page 24

System Overview
1.5 SINAMICS S120 components
The following power components are available:
• Line-side power components, such as fuses, contactors, reactors, and filters for switching
• Line modules, which supply power centrally to the DC link
• DC link components (optional), which stabilize the DC link voltage
• Motor modules, which act as inverters, receive power from the DC link, and supply the
To carry out the required functions, SINAMICS S120 is equipped with
• A control unit that carries out all drive and technological functions across all axes.
• Additional system components that enhance functionality and offer different interfaces for
The SINAMICS S120 components were developed for installation in cabinets. They have the
following features and characteristics:
• Easy to handle, simple installation and wiring
• Practical connection system, cable routing in accordance with EMC requirements
• Standardized design, seamless integration
• Internal ventilators (other cooling methods available on request).
1-8
the power supply and meeting EMC requirements
connected motors.
encoders and process signals.
Equipment Manual for Control Units and Additional System Components
Equipment Manual, (GH1), 04.2004 Edition, 6SL3097-2AH00-0BP0