Siemens SINAMICS S120 Manual page 227
Cabinet modules liquid cooled
Hide thumbs
Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
Table of Contents
Advertisement
Auxiliary Power Supply Modules supply power to the auxiliary power supply system of the
SINAMICS S120 Cabinet Modules as well as to other external loads. The fans of the heat
exchangers installed in the Cabinet Modules are also connected to this auxiliary power
supply system. In addition, the auxiliary power supply system supplies the electronics
modules with external 24 V DC. This voltage is required when the DC link is not charged, for
example, to maintain PROFIBUS/PROFINET communication.
The 230 VAC supply can also be fed in externally via an uninterruptible power supply (UPS)
and terminal -X46.
Note
Supply infeed
The same rated voltage must be fed into the supply infeed of the Auxiliary Power Supply
Module as for the connected Cabinet Modules, as the voltage fed into the Auxiliary Power
Supply Module supplies the entire system with auxiliary voltage via the auxiliary power
supply system.
If a different voltage than that of the connected Cabinet Modules is connected, there is a risk
of an insufficient power supply for the fans or too high a voltage, which can cause damage to
the system.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Cabinet Modules
6.5 Auxiliary Power Supply Modules
225
Advertisement
Table of Contents
