6 v/ f characteristic, 1 v/ f-rated frequency fdr, V/f characteristic – Lenze 8200 Frequency inverters User Manual

Page 159: V/f-rated frequency fdr, Configuration

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Configuration

8200SHB0199

7-22

7.5.6

V/f characteristic

7.5.6.1

V/f-rated frequency f

dr

Code

Name

Possible settings

IMPORTANT

Lenze

Choice

Info

C015 V/f-rated frequency

C015

820X

50.00

30.00

{0.05 Hz}

960.00

821X/822X/

824X

50.00

7.50

{0.02 Hz}

960.00

Function when
C014 = -0-, -1-, -2-, -3-

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.

Adjustment

Calculate the frequency to be set under C015
820X:

C015 [Hz]

230 V

V

rmotor

[V]

ô rated motor frequency [Hz]

821X/822X/824X:

C015 [Hz]

400 V

V

rmotor

[V]

ô rated motor frequency [Hz]

C014 = -2-
Linear characteristic

C014 = -3-
Square characteristic
(e.g. for pumps, fans)

o u t
r m o t o r

V

V

1

V

m i n

0

0

1

C 0 1 5

f

d r m o t o r

o u t
r m o t o r

V

V

V

m i n

0

0

1

C 0 1 5

f

d r m o t o r

K 3 5 . 0 0 6 6 G B

Important

An internal mains voltage compensation compensates deviation in the mains during operation.
Therefore, they do not have to be considered for the setting of C015.

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