Siemens SINAMICS G150 Operating Instructions Manual page 427

Carrying out the rotating measurement (p1960 > 0)
The following measurements are carried out when the enable signals are set and a switch-
on command is issued in accordance with the settings in p1959 and p1960.
● Encoder test
● Only for induction motors:
● Speed controller optimization
● Acceleration pre-control setting (p1496)
● Setting for ratio between the total moment of inertia and that of the motor (p0342)
Note
To set the new controller setting permanently, the data must be saved with p0977 or p0971
in a non-volatile memory.
During speed controller optimization, the drive triggers movements in the motor that can
reach the maximum motor speed.
The EMERGENCY OFF functions must be fully operational during commissioning. To
protect the machines and personnel, the relevant safety regulations must be observed.
Note
If speed controller optimization is carried out for operation with an encoder, the control mode
will be temporarily changed over to encoderless speed control automatically, in order to be
able to carry out the encoder test.
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
If a speed encoder is used, the direction of rotation and the pulse number are checked.
– Measurement of the magnetization characteristic (p0362 to p0369)
– Measurement of the magnetization current (p0320) and determination of the offset
voltage of the converter for offset compensation
– Measurement of the saturation of the leakage inductance and setting of the current
controller adaptation (p0391 to p0393)
This is automatically activated with 1LA1 and 1LA8 motors (p0300 = 11, 18) (see
p1959.5).
– p1470 and p1472, if p1960 = 1 (encoderless operation)
– p1460 and p1462, if p1960 = 2 (operation with encoder)
– Kp adaptation switch-off
DANGER
Functions, Monitoring, and Protective Functions
9.2 Drive Functions
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