Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
2-1
Structure of the drive group
2
2.1 2.1 Structure
2.1.1 Drive group structure
The individual components, such as Control Unit and power units, can be attached directly to
each other without any separation. The specified safety clearance and ventilation space
above, below and in front of the associated components must be observed. The maximum
configuration of the drive group depends on the rated power of the Line Module or on the
current load of the DC link busbar of the individual components.
The components can be assembled in a single line or as several lines. The stacked
installation is possible for the multi-line layout; the installation next to each other in various
cabinet sections is also possible for the cabinet string.
Note
For the layout of the components, ensure that the maximum cable lengths are not exceeded.
See "Cable Lengths" section.
Note
Higher-power Motor Modules must be placed directly next to the Line Module. The lower-
power components then follow. This prevents an overloading of the DC link busbar of the
associated component.
Also refer to the "Current Carrying Capacity of the DC Link Busbar“ section
Note
The appropriate measures must be adopted to satisfy the EMC requirement (see below).
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