Miscellaneous; Cable Duct In The Floor Below The Cabinet; Air Inlet Through The Bottom Of Cabinet (Option +C128+B055) - ABB ACS880-07 Hardware Manual

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 of cabinet (option +C128+B055)


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 below. Refer also to the
dimension drawings delivered with the drive.
Air inlet area
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
WARNING! Make sure that the incoming air is sufficiently clean. If not, dust goes
into the cabinet. The outlet filter on the cabinet roof prevents dust from going out.
The collected dust can cause drive malfunction and danger of fire.
50 (1.97")
500 (19.68")
Losses, cooling data and noise
Mechanical installation 73
50 (1.97")
on page 208.