Siemens SINAMICS S120 Function Manual page 227

The inductance value is then subtracted from the total measured value of the leakage. With
sine-wave filters, only the stator resistance, valve threshold voltage, and valve interlocking
time are measured.
Note
With diffusion of more than 35% to 40% of the motor nominal impedance, the dynamic
response of the speed and current control is restricted to the area of the voltage limit and to
field weakening mode.
Note
The standstill measurement must be carried out when the motor is cold. In p0625, enter the
estimated ambient temperature of the motor during the measurement (with KTY sensor: Set
p0600, p0601 and read r0035). This is the reference point for the thermal motor model and
thermal R
The rated magnetization current and the magnetization characteristic should, if possible, be
determined during the rotating measurement (p1900 = 3) (without encoder: p1960 = 1; with
encoder: p1960 = 2). The magnetization characteristic can be used to calculate the field-
generating current in the field-weakening range more accurately, thereby increasing torque
accuracy.
Note
In comparison with standstill measurement (p1910) for induction motors, rotating
measurement (p1960) allows the rated magnetizing current and saturation characteristic to
be determined much more accurately.
Figure 5-20
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
/R adaptation.
S R
Magnetization characteristic
5.14 Motor data identification and rotating measurement
Vector control
227