Arc Welding - ABB ACS880-37 Hardware Manual

74 Mechanical installation

Arc welding

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Fastening the cabinet by arc welding is not recommended. However, if arc welding is the
only mounting 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 thickness of the zinc coating of the cabinet frame is 100 to 200 micrometers (4
to 8 mil).
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.