ABB ACS880 - Page 325

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0All three terms (parameters 25.2, 25.3 and 25.4) are
observed by the speed controller.
Normal speed
control
1Only the proportional term (25.2) is observed by the
speed controller. The integral and derivative terms are
internally forced to zero.
P-control
0.00 rpm / real32Defines the upper boundary of the speed error window.
See parameter 24.41 Speed error window control
enable.
Speed error window
high
24.43
- / -Upper boundary of speed error window. For scaling,
see parameter 46.1.
0.00 ... 3000.00 rpm
0.00 rpm / real32Defines the lower boundary of the speed error window.
See parameter 24.41 Speed error window control
enable.
Speed error window
low
24.44
- / -Lower boundary of speed error window. For scaling,
see parameter 46.1.
0.00 ... 3000.00 rpm
0.00 rpm / real32Defines an additional speed error step given to the
input of the speed controller (and added to the speed
error value). This can be used in large drive systems for
dynamic speed normalizing.
WARNING!
Make sure the error step value is removed when
a stop command is given.
Speed error step24.46
- / -Speed error step. For scaling, see parameter 46.1.-3000.00 ... 3000.00
rpm
Parameters 325