ABB ACS880 Firmware Manual page 428

428 Parameters
No. Name / Range /
Selection
40.35 Set 1 derivation filter
time
0.0 ... 10.0 s
40.36 Set 1 output min
-32768.0 ... 32767.0
40.37 Set 1 output max
-32768.0 ... 32767.0
40.38 Set 1 output freeze
enable
Not selected
Selected
DI1
DI2
DI3
DI4
DI5
DI6
Description
Defines the time constant of the 1-pole filter used to
smooth the derivative component of the process PID
controller.
%
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
Filter time constant.
Defines the minimum limit for the process PID
controller output. Using the minimum and maximum
limits, it is possible to restrict the operation range.
Minimum limit for process PID controller output.
Defines the maximum limit for the process PID
controller output. See parameter
min.
Maximum limit for process PID controller output.
Freezes (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
Process PID controller output not frozen.
Process PID controller output frozen.
Digital input DI1 (10.2 DI delayed
Digital input DI2 (10.2 DI delayed
Digital input DI3 (10.2 DI delayed
Digital input DI4 (10.2 DI delayed
Digital input DI5 (10.2 DI delayed
Digital input DI6 (10.2 DI delayed
Time
40.36 Set 1 output
enable.
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
Def / Type
FbEq 16b / 32b
0.0 s / real32
10 = 1 s / 10 = 1 s
0.0 / real32
1 = 1 / 10 = 1
1500.0; 1800.0 (95.20
b0) / real32
1 = 1 / 10 = 1
Not selected / uint32
0
1
2
3
4
5
6
7