Active Line Modules; Description - Siemens SINAMICS S120 Manual

Air-cooled chassis power units

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Line Modules

5.4 Active Line Modules

Active Line Modules

The self-commutating infeed / regenerative feedback units act as step-up converters and

generate a stabilized DC link voltage that is 1.5x greater (factory setting) than the rated line

supply voltage. In this way, the connected Motor Modules are isolated from the line voltage.

This improves the dynamic response and control quality because line tolerances and

fluctuations do not affect the motor voltage.

If required, the Active Line Modules can also provide reactive power compensation.

Overview of Active Line Modules

Frame size FX

Frame size GX

Frame size HX

Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3

Frame size JX

Air-cooled chassis power units