5motor control (mctrl) – Lenze 8400 motec User Manual
Page 140
5
Motor control (MCTRL)
5.9
Sensorless control for synchronous motors (SLPSM)
140
Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
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Distribution of the interpolation points
• The saturation characteristic is represented by 17 interpolation points linearly distributed on
the X axis (
).
• Interpolation point 17 represents 100 % of the maximum motor current in the process (
).
• The following diagram shows the saturation characteristic stored in the »Engineer« motor
catalogue for the Lenze motor "MCS12H15" as an example:
[5-7]
Saturation characteristic: Inductance referring to the inductance for rated current
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/I
max
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
[%]
1
0
20
40
60
80
100
120
140
160
180
200
L/L [%]
n
C02853/1
C02853/2
C02853/3
C02853/4
C02853/17