ABB ACS280 Firmware Manual page 226

226 Parameters
No. Name/Value
In1+In2
In1-In2
In1*In2
In1/In2
MIN(In1,In2)
MAX(In1,In2)
AVE(In1,In2)
sqrt(In1)
sqrt(In1-In2)
sqrt(In1+In2)
sqrt(In1)+sqrt(In2)
40.11 Set 1 feedback filter
time
0.000...30.000 s
40.14 Set 1 setpoint scaling
-20000.00...200000.00
40.15 Set 1 output scaling
-20000.00...200000.00
40.16 Set 1 setpoint 1 source
not used
Internal setpoint
AI1 scaled
AI2 scaled
Motor potentiometer
Description
Sum of sources 1 and 2.
Source 2 subtracted from source 1.
Source 1 multiplied by source 2.
Source 1 divided by source 2.
Smaller of the two sources.
Greater of the two sources.
Average of the two sources.
Square root of source 1.
Square root of (source 1 - source 2).
Square root of (source 1 + source 2).
Square root of source 1 + square root of source 2.
Defines the filter time constant for process feedback.
Feedback filter time.
Defines, together with parameter
scaling
, a general scaling factor for the process PID
control chain.
The scaling can be utilized when, for example, the
process setpoint is input in Hz, and the output of the
PID controller is used as an rpm value in speed
control. In this case, this parameter might be set to
40.15
50, and parameter
at 50 Hz.
In effect, the output of the PID controller = [
when
deviation (setpoint - feedback) = [
1.
Note: The scaling is based on the ratio between
40.15
and . For example, the values 50 and 1500 would
produce the same scaling as 1 and 30.
Process setpoint base.
40.14 Set 1 setpoint scaling
See parameter
Operation mode
19.01
(see par. )
Speed control
Frequency control
Process PID controller output base.
Selects the primary source of process PID setpoint.
See the control chain diagram on page
None.
Internal setpoint. See parameter
setpoint sel1
.
12.12 AI1 scaled value
12.22 AI2 scaled value
22.80 Motor potentiometer ref act
motor potentiometer).
40.15 Set 1 output
to the nominal motor speed
40.15
40.14 40.32
] and [
.
Scaling
46.01 Speed scaling
46.02 Frequency scaling
427
.
40.19 Set 1 internal
(output of the
Default
FbEq 16
1
2
3
4
5
6
7
8
9
10
11
0.000 s
1 = 1 s
0.00
]
] =
40.14
1 = 1
1500.00;
1800.00
95.20
( b0)
1 = 1
not used
0
2
3
4
8