01/02 AWB8230-1415GB
Programmable digital inputs
1 to 8
69
Fixed frequency selection (FF1 to FF4)
With the digital inputs configured as FF1 to FF4, you can select up
to 16 user-definable fixed frequencies (including frequency
setpoints), depending on which of the inputs is active or inactive
(
a
Table 13). It is not necessary to use all the fixed frequency
selection inputs at the same time. Using only three inputs, for
example, allows you to choose between eight fixed frequencies;
with two fixed frequency selection inputs, four fixed frequencies
are available for selection.
The fixed frequencies have a higher priority than all other setpoint
values and can be accessed at any time through inputs FF1 to FF4
without needing to be enabled separately. Jog mode, to which the
highest priority is assigned, is the only operation with a higher
priority than the fixed frequencies.
Table 13:
Fixed frequencies
X
Under PNU A019, enter the value 00 to activate the fixed
frequencies FF1 to FF4.
X
Program one or more of the digital inputs 1 to 8 as FF1 to FF4,
by entering the values 02 (FF1) to 05 (FF4) under the correspon-
ding PNU (C001 to C008).
By default, FF1 is preassigned to digital input 7 and FF2 to digital
input 6.
The fixed frequencies can be programmed in two ways:
• by entering the fixed frequencies under PNU A021 to A035,
• by entering the fixed frequencies under PNU F001.
With PNU F001, you can change parameters even when the para-
meter protection (PNU b031) has been set (
a
Page 83).
Entering the fixed frequencies under PNU A021 to A035
X
Go to PNU A021 and press the PRG key.
X
Use the arrow keys to enter the fixed frequency and confirm
with the ENTER key.
X
Enter the remaining fixed frequencies by repeating these steps
for PNU A022 to A035.
Fixed frequency input under PNU F001
Before you can enter the frequencies under PNU F001, you must
enter the value 02 in PNU A001.
X
To select a fixed frequency stage, activate the digital inputs as
listed in Table 13.
X
Go to PNU F001.
The current frequency appears on the display.
X
Use the arrow keys to enter the fixed frequency and confirm
with the ENTER key.
The entered value is saved under the parameter which you have
selected with the digital inputs (
a
Table 13).
X
Repeat these steps for your additional fixed frequencies.
Fixed
frequency
stage
PNU
Input
FF4
FF3
FF2
FF1
0 =
f
s
Frequency
setpoint
value
0
0
0
0
f
1
a021
0
0
0
1
f
2
a022
0
0
1
0
f
3
a023
0
0
1
1
f
4
a024
0
1
0
0
f
5
a025
0
1
0
1
f
6
a026
0
1
1
0
f
7
a027
0
1
1
1
f
8
a028
1
0
0
0
f
9
a029
1
0
0
1
f
10
a030
1
0
1
0
f
11
a031
1
0
1
1
f
12
a032
1
1
0
0
f
13
a033
1
1
0
1
f
14
a034
1
1
1
0
f
15
a035
1
1
1
1
0 = input deactivated
1 = input activated
Figure 55:
Digital inputs 1 to 4 configured as FF1 to FF4
(fixed frequency)
P24
1
2
3
FF4
FF3
FF2
FF1
4
Figure 56:
Function chart for FF1 to FF3 (fixed frequency control)
FWD
FF3
FF2
FF1
f
1
f
2
f
3
f
5
f
7
f
6
f
4
f
s
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