ABB ACQ580 - Page 129

Parameters 125
12.11 AI1 actual value 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.
-
0.000…20.000 mA
or 0.000…10.000 V
Value of analog input AI1. 1000 = 1 unit
12.12 AI1 scaled value Displays the value of analog input AI1 after scaling. See
parameters 12.19 AI1 scaled at AI1 min and 12.20 AI1 scaled
at AI1 max.
This parameter is read-only.
-
-32768.000…
32767.000
Scaled value of analog input AI1. 1 = 1
12.13 AI1 forced value Forced value that can be used instead of the true reading of
the input. See parameter 12.02 AI force selection.
-
0.000…20.000 mA
or 0.000…10.000 V
Forced value of analog input AI1. 1000 = 1 unit
12.15 AI1 unit selection Selects the unit for readings and settings related to analog
input AI1.
V
VVolts. 2
mA Milliamperes. 10
12.16 AI1 filter time Defines the filter time constant for analog input AI1.
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.
0.100 s
0.000…30.000 s Filter time constant. 1000 = 1 s
12.17 AI1 min 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 min.
4.000 mA or
0.000 V
0.000…20.000 mA
or 0.000…10.000 V
Minimum value of AI1. 1000 = 1 unit
No. Name/Value Description Def/FbEq16
63
%
100
T
t
O = I × (1 - e
-t/T
)
I = filter input (step)
O = filter output
t = time
T = filter time constant
Unfiltered signal
Filtered signal