Siemens SINAMICS S120 Manual De Listas página 2438

Actual speed < motor model changeover speed
r0063 n_act < p1752 MotMod n_chgov enc
r0063 n_act < p1755 MotMod n_chgSnsorl
1.5 r0334 Mot kT act
0.5 r0334 Mot kT act
kT estimated
Motor temperature
r0035
Prerequisites:
n_act smooth
- The motor parameters are precisely determined using the motor data identification (p1909, p1910).
r0063
- The motor temperature is detected (p0600).
I_phase act value
- The characteristic of the compensation of the voltage emulation errors is identified (p1952, p1953).
r0069[0...8] - The compensation of the voltage emulation errors is activated (p1780.8 = 1).
U_phase act value
r0089[0...2]
1 2
DO: SERVO
Technology functions - kT estimator
MotMod kT T_smth
1...10000 [ms]
p1795[D] (100)
0
0
1
p1780[D].3 = 1 Select motor model PMSM kT adaptation
p1780[D].8 = 1 Compensation of voltage emulation errors in the drive converter
kT estimator
r0334[M]
p0350[M]
Mot kT act
Mot R_stator cold
3 4
–
+
r0334[M]
Mot kT act
p0356[M]
Mot L_stator leak
5 6
Function diagram
fp_7008_01_eng.vsd
SINAMICS S120
10.08.16 V05.02.03
Is internally used to calculate
the torque.
r1797
MotMod kT corr
PMSM: Permanent-magnet synchronous motor
7 8
- 7008 -