Programming the Control
Signal Terminals
01/02 AWB8230-1413GB
70
Bitwise fixed frequency selection (SF1
to SF7)
With the digital inputs configured as SF1 to SF7, you can directly
access up to seven fixed frequencies. To do this, enter the value 01
under PNU A019 (fixed frequency drive method) and directly
assign a fixed frequency to each of the digital inputs.
X
Under PNU A019, enter the value 01 to activate the fixed
frequencies SF1 to SF5.
X
Program one or more of the digital inputs 1 to 5 as SF1 to SF5
by entering the following values under the corresponding PNU
(C001 to C005).
– SF1: 32
– SF2: 33
– SF3: 34
– SF4: 35
– SF5: 36
– SF6: 37
– SF7: 38
The fixed frequencies can be programmed in two ways:
• entering the fixed frequencies under PNU A021 to A027
(see below),
• entering the fixed frequencies under PNU F001 (see below).
With PNU F001, you can change parameters even when the
parameter protection (
a
page 81
Entering the fixed frequencies under PNU A021 to A027
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 A027.
Entering the fixed frequencies under PNU F001
Before you can enter the frequencies under PNU F001, you must
set the value 02 in PNU A001.
X
To select a fixed frequency stage, activate the digital input as
listed in figure 56.
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 in the parameter which you have
selected with the digital input. If you have wired the inputs as
shown in figure 56, the value is saved under PNU A021 when
digital input 1 is activated.
X
Repeat these steps for your additional fixed frequencies.
Specifying frequency setpoints
The setpoint frequency can be assigned in one of three ways,
depending on PNU A001:
• through the installed potentiometer on the keypad,
PNU A001 = 00;
• through analog input O (0 to 10 V), O2 (–10 V to +10 V) or OI
(4 to 20 mA), PNU A001 = 01 (default);
• through PNU F001 or PNU A020, PNU A001 = 02.
Selecting fixed frequencies
X
Select the defined fixed frequencies by activating the respective
digital inputs (
a
fig. 57).
You do not have to use all five inputs. You can, for example, set
only one fixed frequency. The priority of the fixed frequencies is
specified through the digital input.
Fixed frequency SF1 has the highest, and SF5 die lowest priority
(
a
fig. 57).
Figure 56:
Digital inputs 1 to 5 configured as SF1 to SF5 (bitwise fixed
frequency selection).
SF3
SF4
SF2
SF1
FWD
P24
FW
1
2
3
4
SF5
5
Figure 57:
Function chart for bitwise fixed frequency selection (SF1 to
SF5)
f
s
: Setpoint frequency
FWD
SF3
SF4
SF5
SF2
SF1
B
1
B
1
B
2
B
3
B
5
B
4
B
s
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