Power Units - Siemens SINAMICS S120 Manual

System overview

3.5 Power units

Booksize Compact format
The Booksize Compact format combines all benefits of the Booksize format and provides the
same performance with an even smaller overall height. The Booksize Compact format is thus
particularly well suited for integration into machines with high dynamic requirements and
confined installation conditions.
The Booksize Compact format offers various air cooling options:
• Internal air cooling
• Cold plate cooling (see note)
Note
Devices with external air cooling or cold plate cooling
The ongoing development of the S120 Booksize drive system concentrates on internal air
cooling.
Modules with external air cooling and cold plate will no longer be innovated.
The technical documentation SINAMICS S120 "Booksize power units" Edition 06/2019
(6SL3097-5AC00-0AP2) is still valid for these modules.
3.5 Power units
Line Modules
Line Modules generate a DC voltage for the DC link from the 3-phase line voltage.
• Basic Line Modules
Basic Line Modules generate an uncontrolled DC link voltage and are not capable of energy
recovery.
• Smart Line Modules
Smart Line Modules generate an uncontrolled DC link voltage and are capable of energy
recovery.
• Active Line Modules
Active Line Modules generate a controlled DC link voltage and are capable of energy recovery.
Motor Modules
Motor Modules convert energy from the DC link for the connected motors with variable voltage
and variable frequency.
38
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2