Friction Characteristic Technology Function - Siemens SINAMICS S120 Function Manual

4.8

Friction characteristic technology function

Description
The friction characteristic is used to compensate for the frictional torque of the mo-
tor and driven load. A friction characteristic allows the speed controller to be pre-
controlled and improves the control behavior.
10 points along the characteristic are used for the friction characteristic. The coor-
dinates of every point along the characteristic are defined by a speed parameter
(p382x) and a torque parameter (p383x) (point 1 = p3820 and p3830).
Features
S 10 interpolation points are available for mapping the friction characteristic curve.
S An automatic function supports the friction characteristic plot.
S A connector output (r3841) can be interconnected as friction torque (p1569).
S The friction characteristic can be activated and de-activated (p3842)
Integration
Important parameters (see List Manual)
S p3820
S ...
S p3839
S r3840
S r3841
S p3842
S p3845
Function diagram (see List Manual)
S 5610
S 6710
S 7010
© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition
Friction characteristic technology function
Friction characteristic curve value n0
Friction characteristic curve value M9
CO/BO: Friction characteristic, status
CO: Friction characteristic, output
Friction characteristic curve activation
Friction characteristic curve record activation
Torque limiting/reduction/interpolator
Current setpoint filter
Friction characteristic
Extended functions
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