ABB ACS880 Firmware Manual page 433

No. Name/Value
77.13 Taper starting point
-32767.00...
32767.00
77.14 Taper end point
-32767.00...
32767.00
77.15 Max taper tension
trim %
-100.00...100.00%
77.21 Stall function enable
Not selected
Selected
Other
77.22 Stall speed
threshold %
77.03 Tension reference Src
77.23 Stall tension set point %
Description
Defines the taper function starting point at the reference axis
defined with parameter 77.12 Tapering reference
When parameter 09.12 Actual diameter %
defined with this parameter, tapering starts according to
parameter 77.11 Taper mode.
Diameter.
Defines the taper function end point at the reference axis
defined with parameter 77.12 Tapering reference
When parameter 09.12 Actual diameter %
defined with this parameter, tapering ends according to
parameter 77.11 Taper mode.
Diameter.
Defines the magnitude of tension reference change in
percent of the target tension reference (parameter
Tension reference In). Resulting tension reference changes
according to the chosen taper profile (parameter
mode).
Note: When this parameter is positive, the tension reference
gets lower as the diameter increases. To make the tension
reference increase when the roll diameter builds up, set this
parameter to negative value.
Maximum allowed taper.
Enables Stall function or selects the source for the activation
signal.
Stall function is disabled.
Stall function is enabled.
Source selection (see Terms and abbreviations
page 152).
Defines the line speed reference in percent of
line speed. When the stall function is enabled and the line
speed reference is below the value set with this parameter,
tension controller takes the tension reference set in
parameter 77.23 Stall tension set point
reference approaches the value defined with this parameter,
the tension reference linearly changes towards the
reference value given in parameter
Src as shown in the diagram below:
75.51 Line reference In
0
77.22 Stall speed threshold %
Parameters 433
signal.
reaches the value
signal.
reaches the value
77.51
77.11 Taper
on
75.01 Max
%. As the line speed
77.03 Tension reference
Def/FbEq16
0.00
100 = 1
100.00
100 = 1
0.00%
100 = 1%
Not selected
0
1
-
5.00%