System overview
1.6 Power Sections
Guide for the SINUMERIK 840D sl machine configuring
1-8 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
1.6 1.6 Power Sections
Line modules
Convert the three-phase supply into a DC voltage for the DC link.
● Smart line modules
The smart line modules generate a non-stabilized DC link voltage and are capable of
regenerative feedback.
● Active line modules
The active line modules generate a stabilized DC link voltage and are capable of
regenerative feedback.
Motor modules
● Convert energy from the DC link for the connected motors with variable voltage and
variable frequency.
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