ABB ACS880 - Page 383

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0.0 s / real32Defines the time constant of the 1-pole filter used to smooth
the derivative component of the process PID controller.
Unfiltered signal
Filtered signal
Time
T
100
63
%
O = I × (1 - e
-t/T
)
I = filter input (step)
O = filter output
t = time
T = filter time constant
Set 1 derivation filter
time
40.35
10 = 1 s / 10 = 1 sFilter time constant.0.0 ... 10.0 s
0.0 / real32Defines the minimum limit for the process PID controller
output. Using the minimum and maximum limits, it is
possible to restrict the operation range.
Set 1 output min40.36
1 = 1 / 10 = 1Minimum limit for process PID controller output.-32768.0 ... 32767.0
1500.0; 1800.0 (95.20
b0) / real32
Defines the maximum limit for the process PID controller
output. See parameter 40.36 Set 1 output min.
Set 1 output max40.37
1 = 1 / 10 = 1Maximum limit for process PID controller output.-32768.0 ... 32767.0
Not selected / uint32Freezes (or defines a source that can be used to freeze)
the output of the process PID controller, keeping the output
at the value it was before freeze was enabled. This feature
can be used when, for example, a sensor providing process
feedback must to be serviced without stopping the process.
1 = Process PID controller output frozen
See also parameter 40.30 Set 1 setpoint freeze enable.
Set 1 output freeze
enable
40.38
0Process PID controller output not frozen.Not selected
1Process PID controller output frozen.Selected
2
Digital input DI1 (10.2 DI delayed status, bit 0).
DI1
3
Digital input DI2 (10.2 DI delayed status, bit 1).
DI2
4
Digital input DI3 (10.2 DI delayed status, bit 2).
DI3
5
Digital input DI4 (10.2 DI delayed status, bit 3).
DI4
6
Digital input DI5 (10.2 DI delayed status, bit 4).
DI5
7
Digital input DI6 (10.2 DI delayed status, bit 5).
DI6
10
Digital input/output DIO1 (11.2 DIO delayed status, bit 0).
DIO1
Parameters 383