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

Motor-side power components

6.1

Sine-wave filter

6.1.1

Description

If a sine-wave filter is connected to the output of the Motor Module, 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 Motor Modules must be set to 4 kHz for the sine-wave filters.
This reduces the output current of the Motor Module.
When a sine-wave filter is used, the available output voltage decreases by 15 %.
Figure 6-1
Chassis power units
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
Sine-wave filter
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