ABB ACS2000 AFE 2MVA User Manual page 43

43 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV. H
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2.5 Cabinet design
The riveted and folded cabinet construction of the drive ensures a
strong, flexible and self-supporting framework. The construction
avoids the need for additional skeletal support and provides effective
protection against electromagnetic emissions.
EMC has been achieved by applying a cabinet
design consisting of folded, galvanized sheet
metal plates (approximately 2 mm thick) and mini-
mizing the space between the rivets. The inside
walls of the cabinet are not painted, because paint
tends to reduce the effectiveness of metallic bond-
ing which is important for successful EMC.
Accordingly, only the front of the cabinet is painted
while all other walls are galvanized. However, the
cabinet can be ordered optionally with the whole
of the outside painted. EMC performance is further
enhanced by the use of metal cable ducts.