Motor Data Identification - Induction Motor - Siemens SINAMICS S120 Function Manual
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Servo control
3.12 Motor data identification
3.12.1
Motor data identification - induction motor
Induction motor
The data are identified in the gamma equivalent circuit diagram and displayed in r19xx. The
motor parameters p0350, p0354, p0356, p0358 and p0360 taken from the MotID refer to the
T equivalent circuit diagram of the induction machine and cannot be directly compared. This
is the reason that an r parameter is listed in the table, which displays the parameterized
motor parameters in the gamma equivalent circuit diagram.
Table 3- 12
Data determined using p1910 for induction motors (stationary measurement)
Determined data (gamma)
r1912 identified stator resistance
r1913 rotor time constant identified
r1915 stator inductance identified
r1925 threshold voltage identified
r1927 rotor resistance identified
r1932 d inductance
r1934 q inductance identified
r1936 magnetizing inductance identified
r1973 encoder pulse number identified
Note:
The encoder pulse number is only determined with a very high degree of inaccuracy (p0407/p0408) and is only suitable for
making rough checks. The sign is negative if inversion is required (p0410.0).
-
Note:
If the encoder inversion is changed using MotID, fault F07993 is output, which refers to a possible change in the direction
of rotation and can only be acknowledged by p1910 = -2.
98
Data that are accepted (p1910 = 1)
p0350 motor stator resistance, cold
+ p0352 cable resistance
r0384
motor rotor time constant/damping time constant, d axis
-
-
r0374 motor resistance cold (gamma)
p0354
r0377 motor leakage inductance, total (gamma)
p0353 motor series inductance
p0356 motor leakage inductance
p0358 motor leakage inductance
p1715 current controller P gain
p1717 current controller integral action time
-
r0382 motor main inductance, transformed (gamma)
p0360 motor main inductance
p1590 flux controller P gain
p1592 flux controller integral action time
-
p0410 encoder inversion actual value
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
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