Lenze E84AVHC Series - Page 163

Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010 L 163
8400 HighLine | Parameter setting & configuration
Motor control (MCTRL)
Servo control (SC)
Field controller
The field controller is designed as a PI controller.
The gain Vp (C00077
) of the field controller can be calculated using the motor rotor time
constant and the equivalent time constant of the current-controlled motor:
If the rated data of the motor and the mass inertia of the drive system are known, we
recommend the following setting:
[5-19] Recommendation for the setting of the gain and the time constant of the field controller
 Tip!
The motor rotor time constant depends on the motor rotor resistance, the
magnetising inductance, and the leakage inductance.
• For an optimal calculation, we recommend to select the motor from the motor
catalogue of the »Engineer« first if a Lenze motor is used. Selecting a motor
from the motor catalogue in the »Engineer« ( 100)
• If a third party manufacturer's motor is used, motor parameter identification
must be carried out previously. Automatic motor data identification
( 102)
Parameter Info Lenze setting
Value Unit
C00077 SC: Vp field controller 12.80
C00078
SC: Tn field controller 256.0 ms
V
PField
: Gain of the field controller (C00077)
T
R
: Motor rotor time constant (C00083)
T
Equi
: Motor equivalent time constant
V
PField
: Gain of the field controller (C00077)
T
R
: Motor rotor time constant (C00083)
T
Equi
: Motor equivalent time constant
T
NField
: Time constant of the field controller (C00078)
V
PFeld
T
R
s[]
T
Ersatz
ms[]
------------------------------ -
%[]=
V
PFeld
T
R
s[]
4T
Ersatz
ms[]⋅
--------------------------------------
T
R
s[]
001s[],
--------------------=≈
T
NFeld
ms[]T
R
ms[]=
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