Motor Data Identification - Siemens SINAMICS S120 Function Manual

Note
To set the new controller setting permanently, the data must be saved in a non-volatile
memory.
The measurement progress can be tracked using r0047.
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).
Dangerous motor motion through motor data identification
During motor data identification, the drive may cause the motor to move.
The Emergency Off functions must be fully operational during commissioning. To protect
the machines and personnel, the relevant safety regulations must be observed.
5.14.2

Motor data identification

Motor data identification (p1900, p1910)
The motor data identification can be activated via p1900 = 2 or p1910 = 1. It is used to
determine the motor parameters (equivalent circuit diagram) at standstill.
For control engineering reasons, you are strongly advised to carry out motor data
identification because the equivalent circuit diagram data and motor cable resistance can
only be estimated if the data on the type plate is used. For this reason, the stator resistance
is a very important for the stability of sensorless vector control or for the voltage boost in the
V/f curve. Motor data identification is essential if long supply cables or third-party motors are
used. When motor data identification is started, the following data is determined with p1910
on the basis of the data on the rating plate:
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
WARNING
5.14 Motor data identification and rotating measurement
Vector control
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