Advanced Settings - Siemens Sinamics G110M Operating Instructions Manual

Advanced commissioning
6.17 Motor control
Mastering critical applications
The drive control can become unstable for drives with a high load moment of inertia and
gearbox backlash or a coupling between the motor and load that can possibly oscillate. In
this case, we recommend the following settings:
● Increase p1452 (smoothing the speed actual value).
● Increase p1472 (integral time T
● If, after these measures, the speed controller does not operate with an adequate dynamic
performance, then increase p1470 (gain K
The most important parameters
Table 6- 41
Parameter
p0342
p1496
p1452
p1470
p1472
6.17.2.3

Advanced settings

K - and T adaptation
P I
K and T
p
measurement" of the motor data identification optimizes the speed controller. If you have
performed the rotating measurement, then the K
You can find additional information in the List Manual:
● Vector control with speed controller: Function diagram 6050
● Vector control after presetting the application class Dynamic Drive Control Function
diagram 6824
Droop
For mechanically coupled drives, there is the risk that the drives oppose one another: Small
deviations in the speed setpoint or actual value of the coupled drives can mean that the
drives are operated with significantly different torques.
The droop function ensures even torque distribution between several mechanically coupled
drives.
The droop function reduces the speed setpoint as a function of the torque setpoint.
242
Encoderless speed control
Description
Moment of inertia ratio, total to motor (factory setting: 1.0)
Acceleration precontrol scaling (factory setting: 0 %)
For the rotating measurement of the motor data identification the inverter sets the
parameters to 100 %.
Speed controller speed actual value smoothing time (without encoder) (factory setting:
10 ms)
Speed controller operation without encoder P gain (factory setting: 0.3)
Speed controller operation without encoder integral action time (factory setting: 20 ms)
adaptation suppress speed control oscillations that may occur. The "rotating
I
): T ≥ 4 · p1452
I I
) step-by-step.
P
- and T adaptation has been set.
p n
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 09/2017, FW V4.7.9, A5E31298649B AH