ABB ACQ80-04 Series, Firmware Manual

Page: 85 / 270

Parameters 85
12.12 AI1 scaled value Shows 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.
50.000
-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
0.000…11.000 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.
Note: In firmware ASCL2 and ASCL4), this setting must
match the corresponding hardware setting on the drive
control unit. See chapter
Electrical installation , section
Switches in the Hardware manual of the drive and the default
control connections for the macro in use in chapter Control
macros (page 55 ). Control board reboot (either by cycling the
power or through parameter 96.08 Control board boot ) is
required to validate any changes in the hardware settings.
V
V Volts. 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
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 .
0.000
0.000…11.000 V Minimum value of AI1. 1000 = 1
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
ACQ80 FW.book Page 85 Thursday, February 14, 2019 11:33 AM