ABB ACS280, Firmware Manual, Page: 174 / 430

174 Parameters
Min (ref1, ref2) The smaller of the reference sources is used as
frequency reference 1.
4
Max (ref1, ref2) The greater of the reference sources is used as
frequency reference 1.
5
28.21 Constant frequency
function
Determines how constant frequencies are selected,
and whether the rotation direction signal is
considered or not when applying a constant
frequency.
0b00001
0b0000...0b1111 Constant frequency configuration word. 1 = 1
28.22 Constant frequency
sel1
When bit 0 of parameter
28.21 Constant frequency
function
is 0 (Separate), selects a source that
activates constant frequency 1.
When bit 0 of parameter
28.21 Constant frequency
function is 1 (Packed), this parameter and parameters
28.23 Constant frequency sel2 and 28.24 Constant
frequency sel3 select three sources whose states
activate constant frequencies as follows:
Always off
Always off 0 (always off). 0
No. Name/Value Description Default
FbEq 16
Bit Name Information
0 Const freq
mode
1 = Packed: 7 constant frequencies are selectable using the three
sources defined by parameters
28.22
,
28.23
and
28.24
.
0 = Separate: Constant frequencies 1, 2 and 3 are separately
activated by the sources defined by parameters
28.22
,
28.23
and
28.24
respectively. In case of conflict, the constant frequency with
the smaller number takes priority.
1 Direction
enable
1 = Start dir: To determine running direction for a constant
frequency, the sign of the constant frequency setting (parameters
28.26 … 28.32 ) is multiplied by the direction signal (forward: +1,
reverse: -1). This effectively allows the drive to have 14 (7 forward, 7
reverse) constant frequencies if all values in 28.26 … 28.32 are
positive.
WARNING! If the direction signal is reverse and the active
constant frequency is negative, the drive will run in the
forward direction.
0 = According to Par: The running direction for the constant
frequency is determined by the sign of the constant speed setting
(parameters
28.26
…
28.32
).
2...15 Reserved
Source defined
by par. 28.22
Source defined
by par. 28.23
Source defined
by par. 28.24
Constant frequency
active
0 0 0 None
0 0 0 Constant frequency 1
0 0 0 Constant frequency 2
1 1 0 Constant frequency 3
0 0 1 Constant frequency 4
1 0 1 Constant frequency 5
0 1 1 Constant frequency 6
1 1 1 Constant frequency 7