Auxiliary Power Supply System - Siemens SINAMICS S120 Manual
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- Function manual (1094 pages) ,
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Cabinet Modules
5.8 Auxiliary Power Supply Modules
5.8.5
Auxiliary power supply system
Description
The auxiliary power supply system is used to distribute the available voltages (line voltage
for device fans, 230 V AC, 2-phase 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 V DC voltage is only available via the auxiliary power supply system.
The assignment of the auxiliary power module is described in the chapter "Electrical
installation", section "Connections/auxiliary power supply system".
Table 5- 55
Order no. 6SL3700-
Fuse protection in A
380 to 690 V 2 AC (depending
on the rated device voltage)
230 V 1 AC
24 V DC
262
Overview of the fuses for the auxiliary power supply system in the Auxiliary Power
Supply Module
0MX14-0AA3
0MX16-3AA3
63
80
6
10
20
40
0MX21-0AA3
0MX21-4AA3
100
100
10
20
80
80
Cabinet Modules
Manual, 03/2013, A5E03263538A
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