Lenze 8400 - Manual (Page 213)

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
213
5 Motor control (MCTRL)
5.8 Sensorless control for synchronous motors (SLPSM)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Distribution of the interpolation 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
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