Siemens SINAMICS S120 - Page 155

Cabinet Modules
5.2 Basic Line Modules
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
155
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 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
positioning of the components.