Siemens SINAMICS S150 NEMA, Operating Instructions Manual

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Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without an encoder
Enclosed Drives
486
Operating Instructions, 12/2018, A5E36652151A
7.4.8 Current controller adaptation
Current controller adaptation can be used to adapt the P gain of the current controller and
the dynamic precontrol of the I
q
current controller depending on the current.
The current controller adaptation is directly activated with setting p1402.2 = 1 or deactivated
with p1402.2 = 0.
Using p1959.5, it is automatically activated (p1959.5 = 1) or deactivated (p1959.5 = 0).
Figure 7-23 Current controller adaptation for p0393 < 1, with p0391 < p0392
When swapping the I
q
interpolation points (e.g. for induction motors), the current controller
adaptation appears as follows:
Figure 7-24 Current controller adaptation with swapped I
q
interpolation points for p0393 > 1, with
p0392 < p0391
Function diagram
FP 6714 Vector control - Iq and Id controller
Parameters
•
p0391
Current controller adaptation, starting point KP
•
p0392
Current controller adaptation, starting point KP adapted
•
p0393
Current controller adaptation P gain scaling
•
p1402
Current control and motor model configuration
•
p1703
Isq current controller precontrol scaling
•
p1715
Current controller P gain
•
p1717
Current controller integral time
•
p1959
Rotating measurement configuration