Siemens SINAMICS S120 Equipment Manual page 125

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 frame size GD for 900 kW (400 V) or 1.500 kW (690 V) have a diode
jumper, and the DC link is pre-charged via a separate line-side pre-charging device.
Note
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.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Cabinet Modules
5.2 Basic Line Modules
125