ABB ACQ580 Firmware Manual page 129

No. Name/Value
12.11 AI1 actual value
0.000...20.000 mA
or 0.000...10.000 V
12.12 AI1 scaled value
-32768.000...
32767.000
12.13 AI1 forced value
0.000...20.000 mA
or 0.000...10.000 V
12.15 AI1 unit selection
V
mA
12.16 AI1 filter time
0.000...30.000 s
12.17 AI1 min
0.000...20.000 mA
or 0.000...10.000 V
Description
Displays the value of analog input AI1 in mA or V (depending
on whether the input is set to current or voltage by a hardware
setting).
This parameter is read-only.
Value of analog input AI1.
Displays the value of analog input AI1 after scaling. See
parameters 12.19 AI1 scaled at AI1 min
at AI1 max.
This parameter is read-only.
Scaled value of analog input AI1.
Forced value that can be used instead of the true reading of
the input. See parameter
Forced value of analog input AI1.
Selects the unit for readings and settings related to analog
input AI1.
Volts.
Milliamperes.
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 12.19 AI1 scaled at AI1
Minimum value of AI1.
and 12.20 AI1 scaled
12.02 AI force selection.
t
)
min.
Parameters 125
Def/FbEq16
-
1000 = 1 unit
-
1 = 1
-
1000 = 1 unit
V
2
10
0.100 s
1000 = 1 s
4.000 mA or
0.000 V
1000 = 1 unit