66 Mechanical installation
Miscellaneous
Cable duct in the floor below the cabinet
A cable duct can be constructed below the 500 mm wide middle part of the cabinet. The
cabinet weight lies on the two 50 mm wide transverse sections which the floor must carry.
Prevent the cooling air flow from the cable duct to the cabinet by bottom plates. To ensure
the degree of protection for the cabinet, use the original bottom plates delivered with the
unit. With user-defined cable entries, take care of the degree of protection, fire protection
and EMC compliance.
Air inlet through the bottom (option +C128)
Drives with air intake through the bottom of the cabinet (option +C128) are intended for
installation on an air duct in the floor. Option +C128 requires also option +B055. An
example of the required air inlets in the floor is shown in the dimension drawing on page
187. Refer also to the dimension drawings delivered with the drive.
Support the plinth of the cabinet all round.
The air duct must be able to supply a sufficient volume of cooling air. The minimum air flow
values are given in section Cooling data, noise on page 170.
500 (19.68”)
50 (1.97”)
500 (19.68”)
50 (1.97”)
Air inlet are
Air
inlet
are
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