This illustration shows an example of a 500 mm wide cubicle with four R5i modules.
ExplanationItem
Main DC switch for all units in the cubicle (option-
al) and main DC fuses
1
DC fuse disconnectors for each individual module2
R5i inverter modules (with ZCU-12 control units)3
Output connections4
Output cable entries5
Control cable entry6
Air outlet compartment with cabinet cooling fan
(not shown)
7
Layout of cubicle with frame R5i modules in their own compartments (option +C204)
If option +C204 is selected, two frame R5i inverter modules are installed into their
own compartments in a 500 mm wide cubicle. At the top of the cubicle, there is another
compartment which contains the common DC switch-disconnector and fuses for all
the modules in the cubicle.
The inverter modules are installed in an upright position. The cooling air is guided
from the cool area at the front of the cubicle through the modules into the hot area
at the back. The hot air is exhausted through the roof of the cubicle.
24 Operation principle and hardware description