Mains Cable Connection; Low Power Supply - ABB ACA 6 Series Hardware Manual

Chapter 3 – Electrical Installation
Mains Cable
Connection

Low Power Supply

L1
L3
L2
L1 N
L3 L2
3-10
This section describes the mains cable connections of the ACx 600.
The following Motor Cable Connection section provides some basic
instructions for the routing and mechanical connection of cables. The
mechanical cable connections are basically the same, whether for the
incoming supply or an inverter; different are the cabinet dimensions
and the location of the terminals for the cables. The cabling direction
may also vary (top or bottom).
The N conductor is not normally used with ACx 600 frequency
converters although it is visible in the following diagrams.
A low current ( < 300 A) cable connection when one cable is sufficient is
represented below.
Transformer
L1
L2
L3
N
1)
PE
Factory main earthing bus
ACA 6xx Sections and ACS/ACC 6x7 (132 to 3000 kW) Frequency Converters
Converter
L1
L2
L3
1)
1) as short as possible (low
PE
inductance)
2)
2) not used if the supply
cable screen operates
as a protective
conductor