Moeller DF51 - Fixed Frequencies

10/05 AWB8230-1541GB
Motor control
97
Fixed frequencies
Through digital input configured as CF1 to CF4 you can select up
to 16 user-definable fixed frequencies (including a reference
frequency) (a table 29).
The fixed frequencies have a higher priority than all other
reference values and can be accessed at any time through inputs
CF1 to CF4 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 29: Fixed frequencies
X Program one or more of the digital inputs 1 to 5 as CF1 to CF4,
by entering the values 02 (CF1) to 05 (CF4) under the
corresponding PNU (C001 to C005).
By default, CF1 is preassigned to digital input 3 (= A021) and CF2
to digital input 4 (= A022). When both inputs (3 and 4) are
activated, the value of A023 is selected.
The fixed frequencies can be configured in two ways:
• by entering the fixed frequencies under PNU A021 to A035;
• by entering the fixed frequencies under PNU F001.
Entering the fixed frequencies under PNU A021 to A035;
X Go to PNU A021 and press the PRG key.
X Use the arrow keys (Í and Ú) to enter the fixed frequency and
confirm with the ENTER key.
X Repeat these steps for PNU A022 to A035 to define the
remaining fixed frequencies.
Entering the fixed frequencies under PNU F001.
PNU F001 lets you set the fixed frequency of the active digital
input directly.
Example:
X Go to PNU F001.
X Activate digital input 3 (= CF1).
X Press the PRG key.
The default value 0.0 is displayed.
X With the arrow keys (Í and Ú), set the required frequency
value.
X Press the ENTER key to save the value in PNU A021.
You can also make this setting during operation in RUN mode.
X Disable digital input 3 and activate digital input 4 (= CF2).
X Repeat your input with the arrow keys.
X Press the ENTER key to save the value in PNU A022.
X Activate digital inputs 3 and 4 (= CF3).
Fixed
frequency
stage
PNU Input
CF4 CF3 CF2 CF1
0 = fs Frequency
reference
value
0 0 0 0
f
A21 0 0 0 1
f A22 0 0 1 0
f A23 0 0 1 1
f
A24 0 1 0 0
f A25 0 1 0 1
f A26 0 1 1 0
f A27 0 1 1 1
f A28 1 0 0 0
f A29 1 0 0 1
f A30 1 0 1 0
f A31 1 0 1 1
f A32 1 1 0 0
f A33 1 1 0 1
f
A34 1 1 1 0
f
A35 1 1 1 1
0 = input deactivated
1 = input activated
Figure 97: Digital inputs 2 to 5 configured as CF1 to CF4 (fixed
frequency)
P24123
CF3 CF2 CF1 FWD
4
CF4
5
Figure 98: Function chart for CF1 to CF3 (fixed frequency control)
FWD
CF3
CF2
CF1
f
1
f
2
f
3
f
5
f
7
f
6
f
4
f
s