ABB ACS880 Firmware Manual page 36

36 Start-up guide for ACS880 winder control program
The Inertia compensation function is used to assist the acceleration and deceleration parts of
the process. For more information on Inertial compensation and parameter settings, see
parameter description in group
Set parameter 79.31 Inertia compensation
enable to TRUE for using the Inertia
compensation function.
Note: If fieldbus is used as line speed
reference source in parameter
speed reference
in parameter 75.05 Line ref source cycle
time for the function to work properly.
Select the method for calculating weight.
• Based on estimated weight - in this
method weight is calculated based on
material properties
• Proportional to full roll and actual
diameter.
Note: The latter method requires setting of
parameter 79.34 Full roll
Define the value for fixed inertia.
Fixed inertia includes sum of the inertia of
the motor shaft, couplings, gear-box and
inertia of an empty roll.
For correct values, see technical description
documentation of these components.
For more information, see
Motor rotor inertia, IEC
Inertia compensation settings
80 Turreting assistance
75.02 Line
src, then set correct value
weight.
Appendix A:
(page 671).
(page 446).
79.31 Inertia compensation enable
79.32 Inertia calculation method
79.34 Full roll weight
79.33 Fixed inertia