Siemens Sinamics S120 Manual page 31

System components
● Line-side power components, such as fuses, contactors, reactors, and filters for switching
the power supply and meeting EMC requirements.
● 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
connected motors
To carry out the required functions, SINAMICS S120 is equipped with:
● Control Units that process the drive and technological functions across all axes
● Additional system components to expand the functionality and to implement various
interfaces for encoders and process signals.
SINAMICS S120 components are intended 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, side-by-side mounting
Note
Installation location in the cabinet
As a general rule, SINAMICS S120 components must be mounted vertically in the control
cabinet. If other mounting positions are permissible, these are specified in the descriptions
for the individual components.
Booksize C/D-type format
● C-type: Optimized for continuous load with an overload factor of up to 2 (continuous
motion)
● D-type: Optimized for highly dynamic intermittent duty cycles with an overload factor of up
to 3 (discontinuous motion)
Devices in booksize C/D-type format are optimized for multi-axis applications and are
mounted adjacent to one another. The connection for the shared voltage-source DC link is
an integral feature.
Booksize C/D-type modules are cooled by internal air cooling.
Documentation of required system components
Only components from the booksize C/D-type series plus the relevant connection
components are described in this manual. Additional documentation containing system
information and system component descriptions can be found in the SINAMICS S120
Manual "Booksize Power Units" (GH2).
Power Units in Booksize C/D-Type Format
Manual, 01/2017, 6SL3097-4AC20-0BP1
System overview
2.4 SINAMICS S120 components
31