Active Interface Modules; Description - Siemens SINAMICS S120 Equipment Manual

Line-side power components

2.5 Active Interface Modules

2.5 Active Interface Modules
2.5.1

Description

Active Interface Modules are used in conjunction with the Active Line Modules in chassis
format. The Active Interface Modules contain a Clean Power Filter with basic RI suppression,
the pre-charging circuit for the Active Line Module, the line voltage sensing circuit and
monitoring sensors.
The bypass contactor is an integral component in frame sizes FI and GI, which ensures a
highly compact design. The bypass contactor must be provided separately for frame sizes HI
and JI.
The vast majority of line harmonics are suppressed by the Clean Power Filter.
The Active Interface Module contains:
● Clean Power Filter
● Line reactor
● Pre-charging circuit
● Bypass contactor (frame sizes FI/GI)
● Voltage Sensing Module (VSM)
● Fan
Table 2- 14 Active Interface Module
Frame size FI
52
Frame size GI Frame size HI
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
Frame size JI
Chassis power units