Lenze 9400 Manual de usuario descargar pdf (Pagina 167)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 167

5 Motor interface

5.5 Sensorless vector control (SLVC)

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5.5.2.1 Motor power factor

Together with the rated motor current, the motor power factor (C00091) defines the motor

magnetising current (C00092

) and thus the current consumption of the controller in idle state.

For the adjustment of the motor power factor, first the motor current in idle state at rated speed is

determined in the control type "V/f control". Afterwards the motor power factor is set in the control

type "Sensorless vector control" so that the motor magnetising current corresponds to the

previously determined no-load current.

 How to adjust the motor power factor:

1. If the controller is enabled, inhibit the controller, e. g. with the device command

C00002

= "41: Inhibit controller".

2. Select the control type VFCplus: V/f control" in C00006

.

3. Select setpoint speed 0 rpm

4. Enable controller.

5. Slowly increase setpoint speed to rated speed (no field weakening) and then keep it at rated

speed constantly.

6. Take down the motor current displayed in C00054

.

7. Slowly reduce the setpoint speed to 0 rpm again.

8. Inhibit controller.

9. Go to C00006

and select the "SLVC: Sensorless vector control" again.

10. Set Lh adjustment in C02861

to 100 %.

11. Set the motor power factor (C00091

) so that the following applies:

motor magnetising current (C00092

) ≈ motor current taken down before.

12. Save parameter set (C00002

= "11: Save start parameters").

 Note!

The following adjustment of the motor power factor should be executed after the motor

parameters have been determined and when the value set in C00091

deviates more

than 10 % from the data on the motor nameplate.

If the setting of the motor power factor in C00091

is changed, the setting of the mutual

motor inductance also changes in C00079

.

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