Lenze 8400 - Page 225

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 225
5 Motor control (MCTRL)
5.8 Sensorless control for synchronous motors (SLPSM)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Distribution of the grid points
• The saturation characteristic is represented by 17 interpolation points linearly distributed on
the X axis (C02853/1...17
).
• Interpolation point 17 represents 100 % of the maximum motor current in the process (C02855
).
• The following diagram shows the saturation characteristic stored in the »Engineer« motor
catalogue for the Lenze motor "MCS12H15" as an example:
[5-16] 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
234567891011121314151617
[%]
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