Motor Data Identification And Rotating Measurement - Siemens Sinamics S120 Function Manual

Vector control

4.14 Motor data identification and rotating measurement

4.14 Motor data identification and rotating measurement
Description
There are two motor data identification options, which are based on each other:
● Motor data identification with p1910 (standstill measurement)
● Rotating measurement with p1960
Note
For both types of motor data identification the following applies:
If there is a motor brake, then this must be open (p1215 = 2).
These can be selected more easily via p1900. p1900 = 2 selects the standstill measurement
(motor not rotating). The setting p1900 = 1 also activates the rotating measurement, i.e. with
the setting of p1900 = 1 and p1960 depending on the current control mode (p1300).
If a permanent-magnet synchronous motor is being used (p0300 = 2), then with p1900 > 1,
the encoder adjustment (p1990 = 1) is automatically activated. The technique used can be
set in p1980.
Parameter p1960 is set depending on p1300:
● p1960 = 1, when p1300 = 20 or 22 (without encoder)
● p1960 = 2, when p1300 = 21 or 23 (with encoder)
The measurements, parameterized using p1900 are started in the following sequence after
the drive has been enabled:
● Standstill (static) measurement - after the measurement has been completed, the pulses
● Encoder adjustment - after the measurement has been completed, the pulses are
● Rotating measurement - after the measurement has been completed, the pulses are
● After all of the measurements, activated using p1900 have been successfully completed,
Note
To set the new controller setting permanently, the data must be saved in a non-volatile
memory (see also "Parameters").
Completion of the individual motor data identification runs can be read via parameters r3925
to r3928.
The motor data identification runs influence only the currently valid motor data set (MDS).
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are inhibited and parameter p1910 is reset to 0.
inhibited and parameter p1990 is reset to 0.
inhibited and parameter p1960 is reset to 0.
then this is set to 0.
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions