ABB ACS880 Firmware Manual page 533

No. Name / Range /
Selection
76.19 Auto mode motor
ramp time
0.0 ... 30000.0 s
76.29 Invert PI error sign
Off
Invert both
Invert process 1
Invert process 2
76.31 Process 1 control
feedback src
NULL
AI1 scaled
AI1 scaled
FB A1 ref
FB A2 ref
EFB ref1
EFB ref2
Estimated current
Motor current %
Estimated flowrate
Estimated head
Other [bit]
76.33 Process 1 control set
point
0.00 ... 3000000.00
76.35 Process 1 max scale
Description
Defines safe motor speed ramp setting used when
automatic process control mode is active.
In order to prevent undesired speed steps due to
process feedback signal errors or any other reason, it
is recommended to set this parameter value as high
as it seems reasonable it terms of expected speed
change dynamics.
Auto mode motor ramp time.
Selects the source to invert process PI controller error
sign.
Invert process controller error sign is inactive.
Inverts both Process1 and Process 2.
Invert process 1 control error sign.
Invert process 2 control error sign.
Defines the source for the process 1 feedback signal.
None
12.12 AI1 scaled value (page
12.22 AI2 scaled value (page
3.5 FB A reference 1 (page
3.6 FB A reference 2 (page
3.9 EFB reference 1 (page
3.10 EFB reference 2 (page
Parameter 9.13 Motor current
Estimated motor current in % of nominal motor current.
Signal 85.91 Flowrate actual is used as the process
feedback source.
Signal 85.92 Head actual is used as the process
feedback source.
See Terms and abbreviations (page
Defines the value for the process 1 reference set point.
Process 1 control set point.
Defines the value for the process 1 feedback and
reference unit scaling.
It is assumed that the process signal might change in
range from 0 to a value set in this parameter. This
setting only serves for rendering process unit to the
percent scale and does not limit the input in any way.
Note: When this parameter is set to 0, the process 1
feedback and set point reference scaling is bypassed.
The values are then taken to the process PI controller
input.
226).
228).
179).
179).
179).
179).
estimated.
169).
Parameters 533
Def / Type
FbEq 16b / 32b
5.0 s / real32
10 = 1 s / 1 = 1 s
Off / unit32
0
1
2
3
Estimated flowrate /
unit16
0
1
2
4
5
8
9
7
8
9
10
0.00 / real32
100 = 1 / 10 = 1
1000.0 / real32