Optimisation Of V/F-Characteristic Control - Lenze 8201 Operating Instructions Manual

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5.4.1.2 Optimisation of V/f-characteristic control

Code Name
C015 V/f-rated
frequency
C016 V
min
C021 Slip
compensation
Setting sequence
1. If necessary, select V/f
characteristic (C014).
2. Select V/f-rated
frequency (C015).
Codes required
Possible settings
Lenze Selection
50.0 30.0
setting * 0
0 0
-
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

230V
C015[Hz]
V
rated motor
C014 = -2-
Linear characteristic
V o u t
1 0 0 %
V m i n
0
0 1
Commissioning
Info
{0.1Hz} 960.0
{1 %} 40
{1 %} 12
ô
rated motor frequency [Hz]
[V]
C014 = -3-
Square-law characteristic (e. g. for
pumps, fans)
V o u t
1 0 0 %
V m i n
0
f d
0
f d N
IMPORTANT
* type dependent
f d
1
f d N
K35.0065
820XBA1097
5-13