•
Weld only the flat bar under the cabinet, never the cabinet frame itself.
•
Clamp the welding electrode onto the flat bar about to be welded or to the next flat bar
of the cabinet (within 0.5 meters (1’6”) of the welding point).
WARNING!
If the welding return wire is connected improperly, the welding circuit may damage
electronic circuits in the cabinet. The thickness of the zinc coating of the cabinet
frame is 100…200 micrometers; on the flat bars the coating is approximately
20 micrometers. Ensure that the welding fumes are not inhaled.
48 Mechanical installation
4
Summary of Contents for ACS880-77CC
Page 1: ...ABB WIND TURBINE CONVERTERS ACS880 77CC wind turbine converters Hardware manual...
Page 2: ......
Page 4: ......
Page 10: ...10...
Page 17: ...5 1 3 4 6 8 7 2 Safety instructions 17...
Page 22: ...22...
Page 40: ...40...
Page 60: ...60...
Page 73: ...2a 3b 4c 5 Air flow direction is towards the converter module Maintenance 73...
Page 104: ...104...
Page 108: ...Description CAN bus connection XCAN XCAN 108 BCU x5 control unit...
Page 112: ...112 Dimension drawings...
Page 113: ...Dimension drawings 113...
Page 114: ...114 Dimension drawings...
Page 126: ...126...