● Display of converter faults and alarms
● Fault memory, can be read out via USB
3.8.9 Control Unit
The CU320-2 PN Control Unit is the central control module of the drive's open-loop and closed-
loop control system. The connections are wired internally to the customer terminal block.
3.8.10 Terminal Modules
The Terminal Modules are the central interface for digital and analog inputs and outputs. You
can optionally expand the interface to include additional Terminal Modules.
3.8.11 DC/DC converter
DC/DC converters are used to provide a stable and safe 24 V power supply of the external
customer connections.
Detailed information about connecting the DC/DC converter is provided in the circuit manual.
The mounting location is provided in the layout diagram.
3.8.12 Line filter
Line filters are used to suppress interference in the auxiliary power supplies. Information about
the connection of the line filters is contained in the circuit manual. The mounting location is
provided in the layout diagram.
Figure 3-8 Line filter
Description
3.8 Components
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
Operating Instructions Rev.201910281231 EXAMPLE 45
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