Rotating Measurement And Speed Controller Optimization - Siemens SINAMICS S150 Operating Instructions Manual

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
● r0047 displays the current status of the measurement.
The following parameters are determined by means of motor identification:
● p1910 = 1 and induction motor:
● p1910 = 3 and induction motor:
● p1910 = 1 and permanent-magnet synchronous motor:
9.3.1.2

Rotating measurement and speed controller optimization

Description
"Rotating measurement" can be activated via p1960 or p1900 = 1.
The main difference affecting rotating measurement is speed controller optimization for
determining the drive moment of inertia and setting of the speed controller. On induction
motors, the saturation characteristic and rated magnetization current are also measured.
If rotating measurement is not to be carried out at 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, at which the saturation characteristic is determined and
the encoder test is carried out.
The speed controller is set to the symmetrical optimum in accordance with dynamic factor
p1967. p1967 must be set before the optimization run and only affects the calculation of the
controller parameters.
If, during the measurement, it becomes clear that the the drive cannot operate in a stable
manner with the specified dynamic factor or that the torque ripples are too great, the
dynamic response is reduced automatically and the result displayed in r1968. The drive must
also be checked to ensure that it is stable across the entire range. The dynamic response
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
fault F07990 is output.
Note
To set the new controller setting permanently, the data must be saved with p0977 or
p0971 on the non-volatile CompactFlash card.
WARNING
During motor identification, the drive might set the motor in motion.
The EMERGENCY STOP functions must be fully operational during commissioning. To
protect machines and personnel, the relevant safety regulations must be observed.
p0350, p0354, p0356, p0358, p0360, p1825, p1828, p1829, p1830
p0362 ... p0366
p0350, p0356, p0357, p1825, p1828, p1829, p1830
Functions, monitoring, and protective functions
9.3 Drive functions
311