Siemens Sinamics S120 Manual page 698

Cabinet design and EMC Booksize
12.5 Arrangement of components and equipment
Example 2:
Connection of several Motor Modules with different current carrying capacity of the DC link
busbar to a Line Module with center infeed
①
DC link busbar current carrying capacity
②
DC link busbar load: DC link current I
③
Increased load of the DC link busbar
④
Motor current = rated output current I
Figure 12-2 Center infeed - infeed from left and right to the DC link
A center infeed with Motor Modules to the right and left of the Line Module can be configured
for all Line Modules in compliance with current carrying capacity.
Exception: Smart Line Modules 5 kW and 10 kW
Note
For Smart Line Modules 5 kW and 10 kW, the arrangement of the drive line-up must be
made to the right!
698
at the rated current I of the Motor Module
d n
of the Motor Module
n
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6