Dc Busbar; General Information; Connection For Side-By-Side Installation Of Cabinet Units - Siemens SINAMICS S120 Manual

Electrical installation
4.6 Connections
4.6.4

DC busbar

4.6.4.1

General information

Availability
The DC busbar is always integrated in the following S120 Cabinet Modules and must be
ordered as option M80 to M87:
● Basic Line Modules
● Smart Line Modules
● Active Line Modules
● Booksize Base Cabinets
● Chassis format Motor Modules
● Central Braking Modules
Description
The DC busbar is used to connect Line Modules with Motor Modules; the connection is
made using prefabricated busbar sets with different current-conducting capacities.
The DC busbar can be optionally included in the following Cabinet Modules:
● Line Connection Module
● Auxiliary Power Supply Module
4.6.4.2

Connection for side-by-side installation of cabinet units

Note
DC busbar
The procedure described below uses a DC busbar 1 x 60 x 10 mm (option M80) as an
example, but applies to all other DC busbar versions as well.
For the other available versions, the number of jumpers used on each busbar for connecting
the DC busbar is as follows:
 1 jumper for each DC busbar for 1 x nn x 10 busbars (options M80 to M82)
 2 jumpers for a DC busbar comprising 2 x nn x 10 busbars (options M83 to M85)
 3 jumpers for a DC busbar comprising 3 x nn x 10 busbars (options M86 and M87)
A connection jumper (
cabinet is used to connect the DC busbar across several Cabinet Modules. This connection
jumper is already integrated in every DC busbar of the Cabinet Modules.
78
①
in the diagram below) on the right side of the DC busbar in the
Cabinet Modules
Manual, 03/2013, A5E03263538A