Siemens SINAMICS S120 Manual page 81

Preparatory steps
● Verify that the cabinet units to be connected have been isolated from the supply.
● Install and secure the cabinet units properly.
● Observe the "five safety rules".
● Allow unimpeded access to the DC busbar
Note
Better accessibility from the top
In some cases, it is far simpler to connect the DC busbar from the top (with the hood or top
cover removed) than from the front.
Figure 4-4
Figure 4-5
Cabinet Modules
Manual, 03/2013, A5E03263538A
(if necessary, remove the protective covers during installation work).
Delivery state of the DC busbar
Connecting the DC busbar when cabinet units are installed side-by-side
Electrical installation
4.6 Connections
1
2
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