Supply Line Cable Connection For Low Power Supply; Supply Line Cable Connection For High Power Supply; Busbar Connection - ABB ACS800 Series Hardware Manual

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Note: The N conductor is not normally used with ACS800-67 converters although it
is visible in the following diagrams.

Supply line cable connection for low power supply

A low current (< 300 A) single cable connection is represented below.
L1
L3
L1 N
L3 L2

Supply line cable connection for high power supply

Busbar connection

A high current (> 300 A) busbar connection is represented below.
L1 L2 L3 N
Planning the electrical installation
Line coupling
transformer
L1
L2
L3
L2
N
PE
Line coupling
transformer
L1
L2
L3
N
PE
Site main earthing bus
Note: Paint should be removed to allow a good connection to the cabinet frames
throughout the whole perimeter of the metal conduit (or a bus duct). The metal conduit (or
the bus duct metal) should be electrically continuous throughout its complete length.
Converter
L1
L2
L3
1) 1)
PE
Site main earthing bus
Metal conduit (shield)
Converter
L1
L2
L3
1)
PE
1) As short as possible for
low inductance
2)
2) Not used if the supply
cable screen operates
as a protective
conductor.
1) Connect the metal
conduit of the busbar
system (or the metal of
the bus duct) to PE at
either one end or both
ends.