ABB ACS880 - Page 307

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
8
Digital input DI6 (10.2 DI delayed status, bit 5).
DI6
See Terms and abbreviations (page 132).
Other [bit]
- / uint16Determines how constant frequencies are selected, and
whether the rotation direction signal is considered or not
when applying a constant frequency.
Constant frequency
function
28.21
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.
Constant freq modeb0
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).
Direction enableb1
Reservedb2…15
1 = 10000h…FFFFh
Parameters 307