User-Definable V/F Characteristic - Lenze i950 Commissioning Manual
Servo inverters
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Also See for i950:
- Manual (500 pages) ,
- Commissioning manual (496 pages) ,
- Mounting and switch-on instructions (188 pages)
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Configuring the motor control
V/f characteristic control for asynchronous motor (VFC open loop)
Define V/f characteristic shape
13.4.3.3
User-definable V/f characteristic
The "user-definable V/f characteristic" is provided for the individual adjustment of the motor
magnetisation to the actual application if linear and square-law characteristics are not suita-
ble.
The characteristic is defined by means of 11 parameterisable grid points (voltage/
•
frequency values).
In the Lenze setting the 11 grid points represent a linear characteristic:
•
P1
P2
-50
P1
P2
V
400 V
320 V
f
-50 Hz
-40 Hz
Parameter
Address
Name / setting range / [default setting]
0x2B02:001
Frequency grid points (x) user V/f characteristic: x1 =
f01
-5000 ... [-50] ... 5000 Hz
0x2B02:002
Frequency grid points (x) user V/f characteristic: x2 =
f02
-5000 ... [-40] ... 5000 Hz
0x2B02:003
Frequency grid points (x) user V/f characteristic: x3 =
f03
-5000 ... [-30] ... 5000 Hz
0x2B02:004
Frequency grid points (x) user V/f characteristic: x4 =
f04
-5000 ... [-20] ... 5000 Hz
0x2B02:005
Frequency grid points (x) user V/f characteristic: x5 =
f05
-5000 ... [-10] ... 5000 Hz
0x2B02:006
Frequency grid points (x) user V/f characteristic: x6 =
f06
-5000 ... [0] ... 5000 Hz
0x2B02:007
Frequency grid points (x) user V/f characteristic: x7 =
f07
-5000 ... [10] ... 5000 Hz
0x2B02:008
Frequency grid points (x) user V/f characteristic: x8 =
f08
-5000 ... [20] ... 5000 Hz
0x2B02:009
Frequency grid points (x) user V/f characteristic: x9 =
f09
-5000 ... [30] ... 5000 Hz
0x2B02:010
Frequency grid points (x) user V/f characteristic: x10 =
f10
-5000 ... [40] ... 5000 Hz
0x2B02:011
Frequency grid points (x) user V/f characteristic: x11 =
f11
-5000 ... [50] ... 5000 Hz
218
U [V]
400
320
240
P3
160
P4
80
P5
-40
-30
-20
-10
P3
P4
P5
240 V
160 V
80 V
-30 Hz
-20 Hz
-10 Hz
P9
P8
P7
P6
0
10
20
30
P6
P7
P8
0 V
80 V
160 V
0 Hz
10 Hz
20 Hz
Info
Freely parameterisable V/f characteristic (values for X axis).
P11
P10
f [Hz]
40
50
P9
P10
P11
240 V
320 V
400 V
30 Hz
40 Hz
50 Hz
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