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Control cabinet design and EMC booksize
8.8 24 V DC supply voltage
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
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
Figure 8-2
126
F1
2
+
M
CU320-2
Line
Motor
Module
Module
Example of a 24 V supply via a Control Supply Module
, no additional protection is required on the
2
Motor
Control
Module
Supply
Module
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
Booksize power units
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