2 optimisation of v/ f-characteristic control, 2 optimisation of v/f-characteristic control, Commissioning – Lenze 8200 series User Manual

Page 45: Codes required

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Commissioning

UOMu_^MVMO

5-13

5.4.1.2 Optimisation of V/f-characteristic control

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).

D

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.

D

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

`MNRxeòz =

OPMs

s

к~нЙЗ гзнзк

xsz ⋅

к~нЙЗ гзнзк СкЙимЙеЕу xeòz

C014 = -2-

Linear characteristic

C014 = -3-

Square-law characteristic (e. g. for pumps, fans)

hPRKMMSR

1 0 0 %

0

0

1

f d

f d N

V m i n

0

0

1

f d

f d N

V m i n

V o u t

1 0 0 %

V o u t

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