Siemens SINAMICS S120 Function Manual page 298

V/f control (vector control)
Several variations of the V/f characteristic exist, which are shown in the following table:
Table 6- 1 V/f characteristic (p1300)
Parameter Meaning
values
0 Linear characteristic
1 Linear characteristic
with flux current con-
trol (FCC)
2 Parabolic characteris-
tic
298
Standard (without voltage boost)
Characteristic that compensates for volt-
age losses in the stator resistance for
static/dynamic loads (flux current control
FCC).
This is particularly useful for small motors,
since they have a relatively high stator
resistance.
Characteristic that takes into account the
motor torque curve (e.g. fan/pump).
Quadratic characteristic (f
•
istic)
Energy saving because the low volt-
•
age also results in small currents and
losses
Application / property
character-
2
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions