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

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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 (

VFCplus

)

• 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 (

VFCplus

) 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.

Motor control (MCTRL)

:

Setting Vmin boost

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

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