Siemens SINAMICS S120 Function Manual page 264

U/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
control (FCC)
2 Parabolic
characteristic
264
Standard (without voltage boost)
Characteristic that compensates for
voltage 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
•
characteristic)
Energy saving because the low
•
voltage also results in small currents
and losses
Application / property
2
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions