Siemens SINAMICS S120 Manual page 128

Cabinet Modules
5.1 Line Connection Modules
Figure 5-8
If Basic Line Modules that are fed via a common Line Connection Module are connected in
parallel, line reactors are generally incorporated in the Line Connection Module.
Figure 5-9
Note
The 24 V DC and 230 V AC connections to the auxiliary power supply must be established in
accordance with the circuit diagram.
A fan is incorporated in the Line Connection Module for degree of protection IP23, IP43, and
IP54. The power is supplied using a connecting cable that must be connected to the auxiliary
power module on the plant side.
128
-X1
U1/L1
V1/L2
W1/L3
Connection example: Line Connection Module >1800 A, <2000 A for connection to Basic
Line Modules, option L43
-Q10
-X1
U1/L1
V1/L2
W1/L3
Connection example: Line Connection Module ≥2000 A for connection to Basic Line
Modules, option L43
-Q10
Pre-charging
3WL1
-Q1
Pre-charging
3WL1
-Q1
-X2
-R1
U1/L1
V1/L2
W1/L3
-X2
-R1
U1_1
V1_1
W1_1
-X3
-R1.1
U1_2
V1_2
W1_2
Cabinet Modules
Manual, (GH5), 05/2010, A5E03263538A