Efficient Networks Siemens Sinamics S120 - Manual (Page 142)

Vector control
4.12 Motor data identification and rotating measurement
Drive Functions
142
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

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Figure 4-19 Magnetization characteristic
Note
To set the new controller setting permanently, the data must be saved in a non-volatile
memory.
Carrying out motor identification
● Enter p1910 > 0. Alarm A07991 is displayed.
● Identification starts when the motor is switched on.
● p1910 resets itself to "0" (successful identification) or fault F07990 is output.
● r0047 displays the current status of the measurement.
Rotating measurement (p1960)
Rotating measurement can be activated via p1960 or p1900 = 1.
The main difference of rotating measurement is speed control optimization, with which the
drive's moment of inertia is ascertained and speed controller is set. In addition, the saturation
characteristic and rated magnetization current of induction motors are measured.
If the rotating measurement is not to be carried out using the speed set in p1965, this
parameter can be changed before the measurement is started. Higher speeds are
recommended.
The same applies to the speed in p1961 for which the saturation characteristic is determined
and the encoder test is carried out.