ABB ACS880 - Feedback Selection

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Motor and load feedback configuration.Feedback selection90
See also section Encoder support (page 54), and the
diagram on page 627.
- / real32Displays the estimated or measured motor speed that is
used for speed control, ie. final motor speed feedback
Motor speed for
control
90.1
selected by parameter 90.41 Motor feedback selection and
filtered by 90.42 Motor speed filter time.
In case measured feedback is selected, it is also scaled
by the motor gear function (90.43 Motor gear numerator
and 90.44 Motor gear denominator).
Estimated speed is always used in scalar control.
Note: This parameter is read-only.
- / -Motor speed used for control.
For scaling, see parameter 46.1.
-32768.00 ...
32767.00 rpm
- / real32Displays the motor position (within one revolution) received
from the source selected by parameter 90.41 Motor
feedback selection.
Motor position90.2
In case measured feedback is selected, it is also scaled
by the motor gear function (90.43 Motor gear numerator
and 90.44 Motor gear denominator).
Note: This parameter is read-only.
32767 = 1 rev /
100000000 = 1 rev
Motor position.0.00000000 ...
1.00000000 rev
- / real32Displays the estimated or measured load speed that is
used for motor control, ie. final load speed feedback
Load speed90.3
selected by parameter 90.51 Load feedback selection and
filtered by 90.52 Load speed filter time.
In case measured feedback is selected, it is also scaled
by the load gear function (90.53 Load gear numerator and
90.54 Load gear denominator).
In case motor feedback or estimated feedback is used, it
is inversely scaled by 90.61 Gear numerator and 90.62
Gear denominator (ie. 90.62 divided by 90.61).
Note: This parameter is read-only.
- / -Load speed.
For scaling, see parameter 46.1.
-32768.00 ...
32767.00 rpm
- / int32Displays the load position received from the source
selected by parameter 90.51 Load feedback selection. The
Load position90.4
value is multiplied as specified by parameter 90.57 Load
position resolution.
In case measured feedback is selected, it is also scaled
by the load gear function (90.53 Load gear numerator and
90.54 Load gear denominator).
In case motor feedback or estimated feedback is used, it
is inversely scaled by 90.61 Gear numerator and 90.62
Gear denominator (ie. 90.62 divided by 90.61).
An offset can be defined by 90.56 Load position offset.
Note: This parameter is read-only.
- / -Load position.-2147483648...2147483647
472 Parameters