5motor interface – Lenze 9400 User Manual

Page 146

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5

Motor interface

5.4

Servo control (SC)

146

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

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6. Evaluate the step response:

7. Change the gain Vp under

C00075

and the reset time Tn under

C00076

.

8. Repeat steps 4 ... 6 until the optimum step response of the motor current is reached.

• In the optimised state the current rise time typically is 0.5 ... 1 ms.
• If the adjustment results are not satisfactory, the decoupling network can be

additionally activated via the setting

C00074

= "1". After this, repeat the steps 2 ... 6.

• In case of MCS, satisfying results may only be achieved with a current-dependent

correction of the current controller parameters based on the saturation behaviour of the

motor stator leakage inductance. For this purpose, it is required to use a motor with an

electronic nameplate (ENP) or to set the saturation characteristic manually.

Correction

of the stator leakage inductance...

( 201)

9. After the optimisation has been completed, deactivate the test mode again (

C00398

= "0:

Test mode deactivated").

10. Save parameter set (

C00002

= "11: Save start parameters").

I

t

I

t

I

t

I

t

I

t

I

t

I

t

I

t

I

t

Vp < Vp opt.

Vp = Vp opt.

Vp > Vp opt.

Tn

<

T

n

opt.

Tn

=

T

n

opt.

Tn

>

T

n

opt.

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