ABB ACS580 - Page 171

Parameters 167
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.
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 59). 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
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
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
ACS580 FW.book Page 167 Wednesday, September 21, 2016 9:48 PM