Siemens SINAMICS S120 Manual page 160

Cabinet Modules
5.2 Basic Line Modules
Configuration
In Basic Line Modules of frame sizes FB and GB, a fully-controlled thyristor bridge is used to
pre-charge the Basic Line Module and the connected DC link. The thyristors normally
operate with a trigger delay angle of 0 °.
Basic Line Modules of type GD for 900 kW (400 V) or 1500 kW (690 V) feature a diode
bridge. On these units, the DC link is precharged via a separate, line-side precharging
device.
Note
Additional information
The configuration examples of the individual Basic Line Modules are used to illustrate the
positioning of the factory-fitted components. They show the maximum possible configuration
of the modules, which contain all options that can be ordered.
Refer to the layout diagrams (AO) on the customer DVD for the precise order-specific
location of the components.
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Cabinet Modules
Manual, 03/2013, A5E03263538A