ABB ACS880 Firmware Manual page 349

No. Name / Range /
Selection
DI4
DI5
DI6
Other [bit]
28.21 Constant frequency
function
b0 Constant freq mode
b1 Direction enable
b2...15 Reserved
0000h...FFFFh
Description
Digital input DI4 (10.2 DI delayed
Digital input DI5 (10.2 DI delayed
Digital input DI6 (10.2 DI delayed
See Terms and abbreviations (page
Determines how constant frequencies are selected,
and whether the rotation direction signal is considered
or not when applying a constant frequency.
1 = Packed: 7 constant frequencies are selectable using
the three sources defined by parameters 28.22,
and 28.24.
0 = Separate: Constant frequencies 1, 2 and 3 are
separately activated by the sources defined by
parameters 28.22, 28.23
of conflict, the constant frequency with the smaller
number takes priority.
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
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).
status, bit 3).
status, bit 4).
status, bit 5).
169).
and 28.24 respectively. In case
28.26...28.32
Parameters 349
Def / Type
FbEq 16b / 32b
6
7
8
- / uint16
28.23
are
1 = 1