Setting Parameters
01/02 AWB8230-1413GB
110
Linear
U
/
f
characteristic
For a constant torque, enter the value 00 under PNU A044
(default). The DF6 frequency inverter then increases the output
voltage
U
2
on a linear ramp up to the base frequency in
PNU A003.
Quadratic
U
/
f
characteristic
For a reduced torque, enter the value 01 under PNU A044. The
DF6 frequency inverter then increases the output voltage
U
2
on a
linear ramp up to ten percent of the base frequency in PNU A003.
Then, the DF6 increases
U
2
on a quadratic ramp (reduced) to the
transition frequency in PNU A003.
Adjustable
U
/
f
characteristic
For a freely programmable torque, enter the value 02 under
PNU A044. Under PNU b100 to b113, you can assign seven
different frequency-voltage pairs to the DF6. However, frequencies
f
1
to
f
7
must have ascending values:
f
1
F
f
2
F
f
3
F
...
F
f
7
. The
voltages
U
1o
to
U
7o
are freely adjustable.
f
7
can have values up to the maximum frequency of the DF6.
U
7o
can be up to the input voltage
U
1
or the voltage set under
PNU A082.
If you use the adjustable
U
/
f
characteristic, the following
parameters are no longer valid:
• PNU A003: Base frequency
• PNU A004: Maximum end frequency
• PNU A041: Boost characteristics
Figure 106: Linear
U
/
f
characteristic
U
2
: Output voltage
f
o
: Output frequency
Figure 107: Quadratic
U
/
f
characteristic
U
2
:Output voltage
f
o
: Output frequency
PNU A003
PNU A004
100
[%]
U
2
f
o
PNU A003
0.1
x
PNU A003
PNU A004
100
[%]
U
2
f
o
Figure 108: Adjustable
U
/
f
characteristic
U
2
:Output voltage
f
o
: Output frequency
Figure 109: Limits of the freely adjustable
U
/
f
characteristic
U
2
: Output voltage
f
o
: Output frequency
PNU b113
U
7o
PNU b111
U
6o
PNU b109
U
5o
PNU b107
U
4o
PNU b101
U
1o
PNU b103
U
2o
PNU b105
U
3o
f
1
f
2
f
3
f
4
f
5
f
6
f
7
PNU b100 b102
b104
b106
b108 b110 b112
U
2
f
o
B
1
B
6
B
7
.
.
.
.
.
.
.
.
.
.
400
7
1
, PNU A082
7
7o
7
6o
7
1o
7
2
B
o
[Hz]
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