Connection Example - Siemens SINAMICS S120 Combi Equipment Manual

DC link components
7.1 Control Supply Module CSM
7.1.4

Connection example

The control supply module (CSM) is connected to the line supply (3-ph. 380 V AC –10 % to
480 V AC +10 %) via interface X1 (screw terminals 0.2 to 4 mm
preferably be made without using an isolating device (e.g. contactor).
The CSM has an internal line filter (Class A for TN line supplies), and the pre-charging circuit
for the DC link inside the unit is electrically isolated from the 24 V supply.
The CSM also features a current limitation function. When using cables with a cross-section
of 2.5 mm
cable, or a cable with a similar quality and with a minimum thermal stability of up to 90 °C is
used.
Note
If a selectively tripping, AC/DC-sensitive RCCB is used for the drive line-up, the Control
Supply Module must always be connected to the line supply downstream of this circuit
breaker.
Note
Connecting to the line supply
When configuring the line supply for the Control Supply Module, it should be noted that the
CSM must not be connected to the line supply after the S120 Combi has been connected to
the line supply. When charging, this prevents the DC link from being immediately loaded by
the CSM.
The DIP switch must be set to "single operation" to connect the Control Supply Module to the
S120 Combi drive line-up. The connection can be established as shown below.
The CSM must be connected to the S120 Combi Power Module and the expansion axes via
the DC link busbars as well as also via the 24 V busbars. The red 24 V connector from the
accessories pack provided must be inserted under all circumstances.
168
, no additional protection is required on the 24 V side if a type XLPE or EPR
2
) This connection should
2
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5