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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.
0
'&3
'&1
[
Connecting DC link busbars
The connection of a Line Module to a Motor Module is shown in the following.
24 V busbars
DC link busbars
Line Module
Motor Module
+
M
DCP
DCN
Figure 8-1
Line Module and Motor Module as delivered
Always connect the lower DC link busbars first and then the upper DC link busbars.
Control cabinet design and EMC booksize
8.7 Electrical connection
Booksize power units
120
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0