Commissioning
820XBA1097 5-11
5.4.1.1 Optimisation of V/f-characteristic control with
auto boost
Codes required
Code Name Possible settings IMPORTANT
Lenze Selection Info
C015
V/f-rated
frequency
50.0 30.0 {0.1Hz} 960.0
C016
V
min
setting * 0{1%}40 * type dependent
C021
Slip
compensation
0 0{1%}12
Setting sequence
1.If necessary, select V/f
characteristic (C014).
2.Select V/f-rated
frequency (C015).
-
The V/f-rated frequency determines the slope of the V/f characteristic and has
considerable influence on the current, torque and power performance of the motor.
-
An internal mains voltage compensation compensates deviations in the mains
during operation. They therefore do not have to be considered for the setting of
C015.
Adjustment
Calculate the frequency to be set under C015
C015[Hz]
230V
V
rated motor
[V]
ô
rated motor frequency[Hz]
C014 = -0-
Linear characteristic
C014 = -1-
Square-law characteristic (e. g. for pumps,
fans)
K35.0064
100%
0
01
f
d
f
dN
V
min
0
01
f
d
f
dN
V
min
Vout
100%
Vout
A u to b o o s t
A u to b o o s t
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