ABB ACS880-17 - Page 172

172 Parameters
Last speed Drive generates a warning (A8A0 AI supervision) and freezes
the speed (or frequency) to the level the drive was operating
at. The speed/frequency is determined on the basis of actual
speed using 850 ms low-pass filtering.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
3
Speed ref safe Drive generates a warning (A8A0 AI supervision) and sets the
speed to the speed defined by parameter 22.41 Speed ref
safe (or 28.41 Frequency ref safe when frequency reference
is being used).
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
4
14.20 AI supervision
selection
(Visible when 14.01 Module 1 type = FIO-11 or FAIO-01)
Specifies the analog input limits to be supervised. See
parameter 14.19 AI supervision function.
Note: The number of active bits in this parameter depends on
the number of inputs on the extension module.
0000 0000b
0000 0000b …
0011 1111b
Activation of analog input supervision. 1 = 1
14.21 DIO3 output source (Visible when 14.01 Module 1 type = FIO-01)
Selects a drive signal to be connected to digital input/output
DIO3 when parameter 14.19 DIO3 function is set to Output.
For the available selections, see parameter 14.11 DIO1 output
source.
Not
energized
14.21 AI tune (Visible when 14.01 Module 1 type = FIO-11 or FAIO-01)
Triggers the analog input tuning function, which enables the
use of actual measurements as the minimum and maximum
input values instead of potentially inaccurate estimates.
Apply the minimum or maximum signal to the input and select
the appropriate tuning function.
See also the drawing at parameter 14.35 AI1 scaled at AI1
min.
No action
No action Tuning action completed or no action has been requested.
The parameter automatically reverts to this value after any
tuning action.
0
AI1 min tune The measured value of AI1 is set as the minimum value of AI1
into parameter 14.33 AI1 min.
1
AI1 max tune The measured value of AI1 is set as the maximum value of
AI1 into parameter 14.34 AI1 max.
2
AI2 min tune The measured value of AI2 is set as the minimum value of AI2
into parameter 14.48 AI2 min.
3
No. Name/Value Description Def/FbEq16
Bit Name Description
0 AI1 < MIN 1 = Minimum limit supervision of AI1 active.
1 AI1 > MAX 1 = Maximum limit supervision of AI1 active.
2 AI2 < MIN 1 = Minimum limit supervision of AI2 active.
3 AI2 > MAX 1 = Maximum limit supervision of AI2 active.
4 AI3 < MIN 1 = Minimum limit supervision of AI3 active (FIO-11 only).
5 AI3 > MAX 1 = Maximum limit supervision of AI3 active (FIO-11 only).
6…15 Reserved