Motor-Side Power Components; Sine-Wave Filter; Description - Siemens SINAMICS S120 Equipment Manual

Motor-side power components

7.1

Sine-wave filter

7.1.1

Description

If a sine-wave filter is connected to the output of the Power Modules or Motor Modules, the
voltage between the motor terminals is virtually sinusoidal. This reduces the voltage load on
the motor windings and prevents motor noise that would be induced by the pulse frequency.
Sine-wave filters are available up to a converter type power rating of 250 kW (without
consideration for derating).
The pulse frequency of the Power Modules or Motor Modules must be set to 4 kHz for the
sine-wave filters. This reduces the output current of the Power Modules or Motor Modules.
When a sine-wave filter is used, the available output voltage decreases by 15%.
Figure 7-1
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
Sine-wave filter
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