ABB ACS880 Series Firmware Manual page 154

154 Parameters
No. Name/Value
12.16 AI1 filter time
0.000 ... 30.000 s
12.17 AI1 min
-22.000 ... 22.000
mA or V
12.18 AI1 max
-22.000 ... 22.000
mA or V
Description
Defines the filter time constant for analog input AI1.
%
Unfiltered signal
100
63
Filtered signal
T
-t/T
O = I × (1 - e
I = filter input (step)
O = filter output
t = time
T = filter time constant
Note: The signal is also filtered due to the signal interface
hardware (approximately 0.25 ms time constant). This cannot
be changed by any parameter.
Filter time constant.
Defines the minimum site value for analog input AI1.
Set the value actually sent to the drive when the analog signal
from plant is wound to its minimum setting.
See also parameter 12.01 AI
Minimum value of AI1.
Defines the maximum site value for analog input AI1.
Set the value actually sent to the drive when the analog signal
from plant is wound to its maximum setting.
See also parameter 12.01 AI
Maximum value of AI1.
t
)
tune.
tune.
Def/FbEq16
0.100 s
1000 = 1 s
0.000 mA or
V
1000 = 1 mA
or V
20.000 mA or
10.000 V
1000 = 1 mA
or V