Electrical Connection; Connecting The Dc Link Busbars And The 24 V Busbars - Siemens SINAMICS S220 Equipment Manual

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8.7 Electrical connection

8.7 Electrical connection
Before commissioning, you must have completed the connection of the DC link busbars and 24
V busbars between all of the components.
Releasing the DC link protective flap and connecting the DC link busbars is identical for S220 and
S120 components. The procedure for S120 components is described in the next sections.
8.7.1

Connecting the DC link busbars and the 24 V busbars

Releasing the DC link protective flap
The protective flaps for the component DC links have an interlock mechanism.
Required tool:
• Flat bladed screwdriver (1 x 5.5)
To open the protective flap, use a screwdriver (1 x 5.5) to slightly turn the interlock screw in the
counter-clockwise direction.
Connecting DC link busbars
The connection of a Line Module to a Motor Module is shown in the following.
DCP
DCN
Figure 8-1
Always connect the lower DC link busbars first and then the upper DC link busbars.
120
+
M
Line Module
Line Module and Motor Module as delivered
24 V busbars
DC link busbars
Motor Module
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
Booksize power units