Dv/Dt Filter Compact Plus Voltage Peak Limiter; Description - Siemens Sinamics S120 Manual

Motor-side power components

7.4 dv/dt filter compact plus Voltage Peak Limiter

7.4 dv/dt filter compact plus Voltage Peak Limiter
7.4.1

Description

The dv/dt filter compact plus voltage peak limiter comprises two components: the dv/dt
reactor and the voltage-limiting network (voltage peak limiter), which cuts off the voltage
peaks and feeds back the energy into the DC link. The dv/dt filter compact plus voltage peak
limiter is designed for use with motors for which the voltage strength of the insulation system
is unknown or insufficient.
dv/dt filters compact plus Voltage Peak Limiters limit the voltage rate of rise dv/dt to
values < 1600 V/µs - and the typical voltage peaks to the following values according to
limit value curve A acc. to IEC 60034-25:2007:
● < 1150 V at U
● < 1400 V at 660 V < U
Note
Setting range for pulse frequencies
It is permissible to set pulse frequencies in the range between the rated pulse frequency and
the relevant maximum pulse frequency when a dv/dt filter compact plus voltage peak limiter
is used.
Note
Current derating at increased pulse frequency
Current derating at an increased pulse frequency depends on the derating of the associated
Power Module or Motor Module.
Note
Components of the dv/dt filter
The dv/dt filters compact plus voltage peak limiter of Types 1 to 3 consist of one single
component. Type 4 consists of two separate components, the dv/dt reactor and the voltage
peak limiter.
274
< 575 V
line
< 690 V.
line
Liquid-cooled chassis power units
Manual, (GH7), 11/2016, 6SL3097-4AM00-0BP7