Siemens SINAMICS S120 Function Manual page 102

Operating Modes
Servo control
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 equiva-
lent circuit diagram.
Table 3-11 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.
3-102
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 stator leakage inductance
p0358 motor rotor leakage inductance
p1715 current controller P gain
p1717 current controller integral action time
–
r0382 motor magnetizing inductance transformed
(gamma)
p0360 motor magnetizing inductance
p1590 flux controller P gain
p1592 flux controller integral action time
–
p0410 encoder inversion actual value
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition