Sinusoidal Filter - Siemens SINAMICS S120 Function Manual

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Basic functions

6.4 Sinusoidal filter

Sinusoidal filter

The sine-wave filter limits the voltage rate-of-rise and the capacitive charge/discharge

currents that usually occur with converter operation. It also prevents additional noise caused

by the pulse frequency. The service life of the motor is the same as that with direct line

Inactive sine-wave filters can be damaged during commissioning

If a sine-wave filter is connected to the Power Module or Motor Module, it must be activated

during commissioning (p0230 = 3) to prevent the filter from being destroyed.

If a sine-wave filter is connected to the Power Module or Motor Module, the Power Module

or Motor Module must not be operated without a connected motor because otherwise the

filter can be destroyed.

Usage restrictions for sine-wave filters

The following restrictions must be taken into account when a sine-wave filter is used:

● The output frequency is limited to a maximum of 150 Hz.

● The modulation type is permanently set to space vector modulation without overload.

● Maximum permissible motor cable lengths:

● Other restrictions: Refer to the manuals

If a filter cannot be parameterized (p0230 < 3), this means that a filter has not been provided

for the component. In this case, the drive converter must not be operated with a sine-wave

This reduces the maximum output voltage to approx. 85% of the rated output voltage.

– Unshielded cables: Max. 450 m

– Shielded cables: Max. 300 m

– SINAMICS S120 AC Drive

– SINAMICS S120 Chassis Power Units

– SINAMICS S120 Liquid Cooled Chassis Power Units

Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3

Drive functions