Current Derating As A Function Of The Pulse Frequency - Siemens Sinamics S120 Manual

Motor Modules
6.6 Technical specifications
Figure 6-18
Note
Rated voltage
Refer to the maximum line voltage under "Connection voltages" in the technical data for
details of the rated voltage.
Note
Input voltage range that can be actually used
The dashed line represents a theoretical characteristic of the correction factor. The devices
have an undervoltage threshold, which leads to shutdown when the voltage drops below it.
Consequently, the input voltage range that is actually usable has a lower limit.
6.6.2.4

Current derating as a function of the pulse frequency

When the pulse frequency is increased, the derating factor of the output current must be
taken into account. This derating factor must be applied to the currents specified beforehand
in the technical data.
238
Voltage correction factor K as a function of the installation altitude
T
Manual, (GH7), 11/2016, 6SL3097-4AM00-0BP7
Liquid-cooled chassis power units