Connection For Side-By-Side Installation Of Cabinet Units - Siemens SINAMICS S120 Manual
Cabinet modules liquid-cooled
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Electrical installation
4.5 Connections
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.
Note
Remove the heat exchanger for degree of protection IP55
For degree of protection IP55, to facilitate better access to the DC busbars, you must
remove the additional heat exchanger, see Replacing the heat exchanger fan (Page 212).
4.5.4.2
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 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 (
the cabinet connects the DC busbar across several Cabinet Modules. This connection
jumper is already integrated in every DC busbar of the Cabinet Modules.
Preparatory steps
● Install and secure the cabinet units properly.
● Verify that the cabinet units to be connected have been isolated from the supply.
● Allow unimpeded access to the DC busbar (if necessary, remove the protective covers
during installation work).
Note
Better accessibility from the top
In some cases, it is far simpler to connect the DC busbar from the top (with the top covers
removed) than from the front.
78
①
in the diagram below) on the right-hand side of the DC busbar in
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
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