Siemens SINAMICS S120 Function Manual page 294

U/f control (vector control)
Figure 7-1
The following table gives an overview of the various versions of the U/f characteristic:
Table 7-1 U/f characteristic (p1300)
Parame‐ Meaning
ter values
0 Linear characteristic
1 Linear characteristic
with flux current con‐
trol (FCC)
292
Operating areas and characteristic curves for the induction motor with converter supply
Standard (without voltage boost)
Characteristic that compensates for volt‐
age losses in the stator resistance for stat‐
ic/dynamic loads (Flux Current Control
FCC).
This is particularly useful for small motors,
since they have a relatively high stator re‐
sistance.
Application / property
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions