Power Sections - Siemens SINAMICS S120 Equipment Manual

1.6

Power sections

Line modules
Convert the three-phase supply into a DC voltage for the DC link.
• Smart line modules
• Active line modules
Motor modules
• Convert energy from the DC link for the connected motors with variable voltage and
Equipment Manual for Control Units and Additional System Components
Equipment Manual, (GH1), 04.2004 Edition, 6SL3097-2AH00-0BP0
The smart line modules generate a non-stabilized DC link voltage and are capable of
regenerative feedback.
The active line modules generate a stabilized DC link voltage and are capable of
regenerative feedback.
variable frequency.
System Overview
1.6 Power sections
1-9