Auxiliary Power Supply System; Customer Interfaces For Supplying Power To An Additional Auxiliary Power Supply System - Siemens SINAMICS S120 Manual

Cabinet Modules
6.5 Auxiliary Power Supply Modules
6.5.4

Auxiliary power supply system

Description
The auxiliary power supply system is used to distribute the available voltages (230 V 2 AC
and 24 V DC). The table below shows an overview of the connected voltages and associated
fuses for the auxiliary power supply system in the Auxiliary Power Supply Module. The
24 V DC voltage is provided directly from the SITOP power supply and is not protected
separately by a fuse. The 24 V DC power supply itself is current-limited and short-circuit-
proof at the output.
Note
The 24 VDC voltage is available only via the auxiliary power supply system.
The assignment of the auxiliary power module is described in Chapter "Electrical
installation", Section "Connections / auxiliary power supply system".
Table 6- 40
Article No.
Fuse protection in A
230 V 2 AC
24 VDC
6.5.5 Customer interfaces for supplying power to an additional auxiliary power supply
system
This chapter describes only those interfaces in the cabinet that require additional connection
work by the customer. All other interfaces are pre-wired at the factory and are not designed
for customer connections. The table below provides an overview of the most important
technical data of the customer terminals in the cabinet.
Note
Additional information
All connections to be established on the plant side as well as the interfaces for integration
into the plant control system are described in the circuit and terminal diagrams on the
customer DVD supplied.
230
Overview of the fuses for the auxiliary power supply system in the Auxiliary Power Sup-
ply Module
6SL3705-0MX22-0AA3
10
20
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A