Speed Controller Adaptation - Siemens SINAMICS S120 Function Manual

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3.2.4

Speed controller adaptation

Description
Two adaptation methods are available, namely free Kp_n adaptation and speed-
dependent Kp_n/Tn_n adaptation.
Free Kp_n adaptation is also active in "operation without encoder" mode and is
used in "operation with encoder" mode as an additional factor for speed-dependent
Kp_n adaptation.
Speed-dependent Kp_n/Tn_n adaptation is only active in "operation with encoder"
mode and also affects the Tn_n value.
p 1459
Adaptation signal 1
p 1455
(0)
referred to p200X
or p205X
p 1458
Adaptation signal 2
p 1466
(1)
p 1460
0
Speed-dependent
p 1470
Kp
1
p 1461
p 1464
Sensorless
vector
control
active
p 1465
p 1463
p 1462
0
Speed-dependent
p 1472
Tn
1
Fig. 3-29
Free KP adaptation
Dynamic response reduction in the field-weakening range can be activated
(p1400.0) with sensorless operation. This is activated when the speed controller is
optimized in order to achieve a greater dynamic response in the basic speed
range.
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
1
y
x
x
p 1456
p 1457
_
n adaptation
Dynamic reduction
field weakening
sensorless vector
control only
_
n adaptation
p 1400 .6
p 1400 .5
1
0
0
1
1
p 1400. 5
0
1
p 1400 .0
1
,
0
1
p 1400 .5
1
0
Operating Modes
Vector control
_n_
adapt
Kp
To speed
controller
Tn _n_ adapt
3-129

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