Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 82)

9400 HighLine | Parameter setting & configuration
Motor interface
Initial commissioning | Optimise current controller
82 Firmware 1.37 - 09/2006
L
8. After the optimisation has been completed with C00398 = "0", deactivate the test
mode for the current controller again.
9. Save parameter set ( C00002 = "11").
5.1.11.1 Correction of the leakage inductance via saturation characteristic
The current controller must be adjusted to the electrical characteristics of the motor –
stator resistance and stator leakage inductance:
In case of modern motors, however, the stator leakage inductance changes ( C00085 ) as a
function of the magnitude of current so that each current value requires a new current
controller setting.
When the motor is operated with very low and very high currents (e.g. in Pick and place
applications), it is not always possible to achieve a satisfactory current controller setting
for all operating points. For this purpose, the correction of the leakage inductance and
current controller parameters is possible via a saturation characteristic that can be set in
C02853 (17 base points).
Gain Vp
Leakage inductance of stator
240 μs
-------------------------------------------------------------------------- =
Reset time Tn
Stator leakage inductance
Stator resistance
------------------------------------------------------------------- =