C00015 | vfc: v/f base frequency, C00016 | vfc: vmin boost, C00018 | switching frequency – Lenze 8400 BaseLine C User Manual
Page 240: C015, C016, C018, Apting the v/f base frequency, Applies to all permitted, Is set to, Influe

Lenze · 8400 BaseLine C · Reference manual · DMS 1.6 EN · 01/2014 · TD05
240
10
Parameter reference
10.2
Parameter list | C00015
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C00015
C00016
C00018
Parameter | Name:
C00015 | VFC: V/f base frequency
Data type: UNSIGNED_16
Index: 24560
d
= 5FF0
h
V/f base frequency for V/f characteristic control (
)
• The motor voltage increases linearly with the frequency until the base frequency is reached. From this value on,
the motor voltage remains constant, the speed increases and the maximum torque decreases.
• After the motor to be used has been selected from the motor catalogue, the suitable value can be entered auto-
matically. An automatic detection via the motor parameter identification is possible as well.
Setting range
(min. value | unit | max. value)
Lenze setting
7.5
Hz
999.9 50.0 Hz
Read access Write access CINH PLC STOP No transfer COM MOT
Scaling factor: 10
Parameter | Name:
C00016 | VFC: Vmin boost
Data type: UNSIGNED_16
Index: 24559
d
= 5FEF
h
Boost of the V/f voltage characteristic within the range of low speed or frequency values for the (
) V/f cha-
racteristic control.
• This may increase the starting torque.
• After the motor to be used has been selected from the motor catalogue, the suitable value can be entered auto-
matically. An automatic detection via the motor parameter identification is possible as well.
:
Setting range
(min. value | unit | max. value)
Lenze setting
0.0
%
100.0 0.0 %
Read access Write access CINH PLC STOP No transfer COM MOT
Scaling factor: 100
Parameter | Name:
C00018 | Switching frequency
Data type: UNSIGNED_8
Index: 24557
d
= 5FED
h
Selection of the pulse width modulated switching frequency transferred from the inverter to the motor
• When a variable switching frequency is selected, the switching frequency may change as a function of the load
and rotational frequency.
Selection of the switching frequency
Selection list
(Lenze setting printed in bold)
1 4 kHz var./drive-optimised
2 8 kHz var./drive-optimised
3 16 kHz var./drive-optimised
5 2 kHz constant/drive-optimised
6 4 kHz constant/drive-optimised
7 8 kHz constant/drive-optimised
8 16 kHz constant/drive-optimised
21 8 kHz var/4 kHz min.
22 16 kHz var/4 kHz min.
23 16 kHz var/8 kHz min
Read access Write access CINH PLC STOP No transfer COM MOT
Scaling factor: 1