Two-Row / Multi-Row Construction - Siemens SINUMERIK 840D sl Manual

Structure of the drive group
2.1 Structure
2.1.3

Two-row / multi-row construction

The components of the SINAMICS system can also be constructed as two or more rows. As
previously described above, the limit is the maximum DC link length and the current carrying
capacity of the DC link busbar. For the stacked construction, the appropriate ventilation
clearances must be observed in accordance with the Equipment Manual for Booksize Power
Units.
Note
Observe the installation and ventilation clearances; refer to the "Note for Connection Cable
Installation Clearance" section
Figure 2-3
Note
For the layout of the NCU 7x0 or NX1x, see "Layout of the Components"
2-4
Two-row construction
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0