3.8.3 Terminal Modules
The Terminal Modules are the central interface for digital and analog inputs and outputs. You
can optionally expand the interface to include additional Terminal Modules.
3.8.4 Power cell
A power cell comprises the following mechanical units that can be separated:
● IGBT module
● Capacitor bank
① IGBT module
② Capacitor bank
Figure 3-5 Power cell
See also
Replacing a power cell (Page 109)
3.8.4.1 IGBT module
Every IGBT module comprises the following components:
● Cooling plate
● Two IGBTs
● Control electronics
● Discharge resistors
A branch reactor is located in each phase, between the branch connections and the phase
output. The IGBTs can limit and disconnect a short-circuit current. This means that the
converter is short-circuit proof, that is, a short-circuit will not damage the device but instead will
cause the converter to stop.
Description
3.8 Components
SINAMICS PERFECT HARMONY GH150 6SL3825
38 Operating Instructions 05/2020