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8.8.2
Options for the 24 V supply of the components
Line Modules, Motor Modules and DC link components are connected via the integrated 24 V
busbars. The current-carrying capacity of these busbars is 20 A.
You can use the following components for the 24 V supply:
• Control Supply Module
• External 24 V power supply (e.g. SITOP)
• SITOP-PSU400M
Note
Using the SITOP PSU400M
More information on the SITOP PSU400M is provided in Chapter SITOP PSU400M (Page 102).
Using a Control Supply Module
When a Control Supply Module is used, the 24 V supply is directly established via the busbars.
The electronic current limiting function integrated in the Control Supply Module protects the
busbar system when a fault occurs. Additional loads can be connected via the 24 V terminal
adapter.
Note
If you use cables with a cross-section of 2.5 mm
2
, no additional protection is required on the
24 V side for the following cable types:
• Cables of the XLPE type
• Cables of the EPR type
• Cable with a similar properties and which is thermally stable up to 90 °C
2,5 mm
2
Motor
Module
Motor
Module
Line
Module
Control
Supply
Module
+
M
M
M
M
M
+
+
X124
+ 24 V
CU320-2
F1
Figure 8-2
Example of a 24 V supply via a Control Supply Module
Control cabinet design and EMC booksize
8.8 24 V DC supply voltage
Booksize power units
126
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0