Mechanical Losses Compensation - ABB ACS880 Firmware Manual

442 Parameters
No. Name/Value
79
79 Mechanical losses
compensation
79.11 Friction
compensation
enable
Not selected
Selected
Other
79.12 Static friction torque
0.00...100.00%
Description
Friction compensation control and setup.
See section Friction compensation
For proper adjustment of the friction compensation, use the
following procedure:
1. Place an empty core into the driven section.
2. Set parameter 79.11 Friction compensation enable
Selected.
3. Switch drive to local control mode (example, from a
control panel).
4. Set motor speed reference to 1% total speed range (RPM
ref = 0.01 • 75.61 Max motor speed at
5. Start the drive and make sure load is rotating. Observe
parameter 01.10 Motor torque
on the front page of the control panel.
6. Note the average value of parameter
and save it to parameter
7. Increase the speed to 5% of
core.
8. Save the average of parameter
value to parameter 79.13 Friction torque at 5%
9. Increase the speed to 10% of
core.
10.Save the average of parameter
value to parameter 79.14 Friction torque at 10%
11.Increase the speed to 20% of
core.
12.Save the average of parameter
value to parameter 79.15 Friction torque at 20%
13.Increase the speed to 40% of
core.
14.Save the average of parameter
value to parameter 79.16 Friction torque at 40%
15.Increase the speed to 60% of
core.
16.Save the average of parameter
value to parameter 79.17 Friction torque at 60%
17.Increase the speed to 80% of
core.
18.Save the average of parameter
value to parameter 79.18 Friction torque at 80%
19.Increase the speed to 100% of parameter
motor speed at core.
20.Save the average of parameter
value to parameter 79.19 Friction torque at 100%
Enables Friction compensation function or selects the
source for the activation signal.
Disables Friction compensation function.
Enables Friction compensation function.
Source selection (see Terms and abbreviations
152).
Defines the friction torque at 1% of the maximum speed
75.01 Max line speed.
Friction torque at 1% of the maximum speed.
on page 58.
core).
% signal is also displayed
01.10 Motor torque
79.12 Static friction torque.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max motor speed at
01.10 Motor torque
speed.
75.61 Max
01.10 Motor torque
on page
Def/FbEq16
=
%
%
%
%
%
%
%
speed.
Selected
0
1
-
0.00%
100 = 1%