ABB ACA 6 Series, Hardware Manual

Page: 67 / 102

Chapter 3 – Electrical Installation
ACA 6xx Sections and ACS/ACC 6x7 (132 to 3000 kW) Frequency Converters 3-25
External Control
Cable Connections Connect the control cables to the appropriate terminals on the NIOC
board (or optional terminal block X2, or other options on the DIN rail on
the left-hand side of the cabinet). External control cables and options
for ACx 6x7 units (630 to 3000 kW) are connected in the Auxiliary
Control Unit (see subsection below). Connect the twisted screen (as
short as possible) to the earthing terminal
.
Auxiliary Control Unit of
ACx 6x7
External control cables and options for ACx 6x7 units (630 to 3000 kW)
are connected in a 400 mm or 600 mm wide Auxiliary Control Unit.
NIOC board and X2/2TB terminal block are located on the DIN rail on
the left-hand side of the cabinet.
Assembly Door Wire the door options as shown below.
Ensure that the cables are long
enough for the assembly door to
open.
Connect the twisted inner screens (max
2 cm) of double shielded cables to the
earthing rail.
Assembly door viewed from back