Miscellaneous; Cable Duct In The Floor Below The Cabinet; Arc Welding; Air Inlet Through The Bottom Of The Cabinet (Option +C128) - ABB ACS880 Mechanical Installation Instructions

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.
50 (1.97")

Arc welding

￭
ABB does not recommend attaching the cabinet by arc welding. However, if arc welding
is the only option, connect the return conductor of the welding equipment to the
cabinet frame at the bottom within 0.5 meters (1'6") of the welding point.
Note: The cabinet frame is zinc-plated.
WARNING!
Make sure that the return wire is connected correctly. Welding current must
not return via any component or cabling of the drive. If the welding return wire
is connected improperly, the welding circuit can damage electronic circuits in
the cabinet.
WARNING!
Do not inhale the welding fumes.

Air inlet through the bottom of the cabinet (option +C128)

￭
Drives with air inlet through the bottom of the cabinet (option +C128) are intended
for installation on an air duct in the floor. Each cubicle (except top entry adapter and
joining cubicles) have an inlet through the bottom plate. The option also adds a 130 mm
deep inlet area at the back of the cubicle.
An example of the air inlets in the cabinet bottom plate is shown below. Refer also to
the dimension drawings delivered with the drive.
500 (19.68")
50 (1.97")
Mechanical installation 23
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