Servo control
4.13 Motor data identification
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
153
Motor data identification induction motor
The data are identified in the inverse gamma equivalent circuit diagram and displayed in
r19xx. The motor parameters p0350, p0354, p0356, p0358 and p0360 taken from the motor
data identification 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 inverse gamma equivalent circuit
diagram.
Table 4- 12 Data determined using p1910 for induction motors (stationary measurement)
Data that is accepted (p1910 = 1)
r1912 identified stator resistance p0350 motor stator resistance, cold+ p0352 cable
r1913 rotor time constant identified r0384 motor rotor time constant / damping time con-
stant, d axis
r1915 stator inductance identified
r1925 threshold voltage identified
r1927 rotor resistance identified r0374 motor resistance cold (gamma)
r1932 d inductance r0377 motor leakage inductance total (gamma)
p0353 motor series inductance
p0356 motor leakage inductance
p0358 motor rotor leakage inductance
p1715 current controller P gain
p1717 current controller integral time
r1934 q inductance identified
r1936 magnetizing inductance identified r0382 motor magnetizing inductance transformed
(gamma)
p0360 motor magnetizing inductance
p1590 flux controller P gain
p1592 flux controller integral time
r1973 encoder pulse number identified -
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).
p0410 Encoder inversion actual value
If the encoder inversion is changed using motor data identification, fault F07993 is output, which
refers to a possible change in the direction of rotation and can only be acknowledged by p1910 = -2.
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