9400 highline | parameter setting & configuration – Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) User Manual
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Firmware 1.37 - 09/2006
83
9400 HighLine | Parameter setting & configuration
Motor interface
Initial commissioning | Optimise current controller
The following picture shows a typical saturation characteristic of an MCS motor:
[5-1]
Saturation characteristic: Inductance referring to the inductance for rated current
r
By optimising different current setpoints such a characteristic can be detected per
r
The correction by means of this saturation characteristic can be switched off or on via
Distribution of the grid points
r
The saturation characteristic is displayed by 17 points which are distributed linearly on
the X axis.
r
The point 17 represents 100 % of the maximum motor current in the process (
).
[5-2]
Saturation characteristic: Distribution of the grid points
O
Tip!
The following chapter provides an example for determining the saturation
Example for determining the saturation characteristic
0 %
10 %
20 %
30 %
40 %
50 %
60 %
70 %
80 %
90 %
100 %
0 %
20 %
40 %
60 %
80 %
100 %
120 %
I/I
max
L/L
n
Note!
The saturation characteristic is not only used for the correction of the current
controller but also influences the current controller feedforward control
0
6.25
12.5
18.75
25
31.25
37.5
43.75
50
56.25
62.5
68.75
75
81.25
87.5
93.75
100
I
max
Vp
Tn
[V/A]
[ms]
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
[%]
1