Siemens SINAMICS S150 Operating Instructions Manual page 312

Functions, monitoring, and protective functions
9.3 Drive functions
might need to be reduced or Kp/Tn adaptation for the speed controller parameterized
accordingly.
When commissioning induction machines, you are advised to proceed as follows:
● Before connecting the load, a complete "rotating measurement" (without encoder: p1960
● When the load is connected, speed controller optimization should be repeated because
When permanent-magnet synchronous motors are commissioned, the speed controller
should be optimized (p1960 = 2/4) when the load is connected.
Rotating measurement sequence (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 to non-volatile memory on the CompactFlash card.
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= 1; with encoder: p1960 = 2) should be carried out. Since the induction machine is idling,
you can expect highly accurate results for the saturation characteristic and the rated
magnetization current.
the total moment of inertia has changed. This is realized by selecting parameter p1960
(without encoder: p1960 = 3; with encoder: p1960 = 4).
If a speed controller is in use, the direction of rotation and pulse number per revolution
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 leakage inductance saturation and setting of the current controller
adaptation (p0391...p0393)
This is activated automatically on 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
During speed controller optimization, the drive triggers movements in the motor that can
reach the maximum motor speed.
The EMERGENCY STOP functions must be fully operational during commissioning. To
protect machines and personnel, the relevant safety regulations must be observed.
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A