Connection Examples; General Information; Single Operation - Siemens SINAMICS S120 System Manual

Control Supply Module (CSM)

8.4 Connection examples

8.4 Connection examples
8.4.1

General information

The Control Supply Module 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 Control Supply Module has an internal line filter (Class A for TN systems), and the pre-
charging circuit for the DC link inside the device is electrically isolated from the 24 V supply.
The Control Supply Module also features a current limitation function.
Note
If you use cables with a cross-section of 2.5 mm
24 V side for the following cable types:
• Cables of the XLPE type
• Cables of the EPR type
• Cable with a similar properties and which is thermally stable up to 90 °C
Note
Observe the connection sequence
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. Otherwise, the residual current operated circuit breaker will trip erroneously if the
direct-current component is asymmetrically drawn in certain operating states.
8.4.2

Single operation

Within the drive line-up, the Control Supply Module must be connected to the drive line-up
via the DC link busbars as well as the 24 V busbars. The red 24 V connector from the
accessories pack provided must be inserted under all circumstances. The DIP switch on the
Control supply Module must be set to "single mode" The connection can be established as
shown below.
The supply for other 24 V loads outside the drive line-up using additional Control Supply
Modules, whose outputs are not connected in parallel, must be realized using the 24 V
terminal adapter (do not insert the red 24 V connector).
134
). This connection should
2
, no additional protection is required on the
2
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
High Frequency Drive