Lenze 9400 Manual de usuario descargar pdf (Pagina 169)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 169

5 Motor interface

5.5 Sensorless vector control (SLVC)

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5.5.2.3 Mutual motor inductance

Adjustment at rated operation

This adjustment is executed at rated speed and a defined load (e.g. measuring brake) which serves

to define the rated torque. A condition for the adjustment is to know the real load torque. The motor

current is compared to the rated current. At rated load, these two values should be almost identical.

If an adjustment at rated operation is not possible, alternatively execute the adjustment at no-load

operation (see the following section "Adjustment at no-load operation").

 How to adjust the mutual motor inductance at rated operation:

1. Set the maximum current in C00022

to 110 % of the rated motor current (C00088).

2. Select setpoint speed 0 rpm

3. Enable controller.

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

speed constantly.

5. Apply rated load to the motor.

6. Compare the motor current displayed in C00054

with the rated motor current displayed in

C00088

.

7. If motor current > rated motor current:

• Reduce the mutual motor inductance stepwise and indirectly via the Lh adjustment in

C02861

until the following applies: motor current ≈ rated motor current.

If motor current < rated motor current:

• Increase the mutual motor inductance stepwise and indirectly via the Lh adjustment in

C02861

until the following applies: motor current ≈ rated motor current.

8. Unload the motor again and slowly reduce the setpoint speed to 0 rpm again.

9. Inhibit controller.

10. Save parameter set (C00002

= "11: Save start parameters").

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