SCREEN DEFINITIONS
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CYGNUS
MI 850A316 1 B
Page 48 of 66
Screen Function
Definition
Error lim ___%
Enter a value for the error limit between 10% and 100%.
The error limit aids the tuning process by setting a
boundary for the actual tension error that CYGNUS will
recognize during control corrections. Smaller values for
the error limit will lengthen the amount of time necessary
for CYGNUS to correct large tension transients. See
also PRESS UNTIL STABLE and MANUALLY ADJUST
ERROR LIMIT
Fieldbus
Select to enter Fieldbus configuration screen. This is
necessary only if your CYGNUS is equipped with the
optional Fieldbus communication card and you wish to
use its serial communication capabilities.
Full roll diameter ___
Enter a value in the units specified for the diameter of
your roll when it is full
Gain scheduling
Select to access the gain scheduling options. Gain
scheduling allows the operator to specify different tuning
parameters from full roll to core based upon the
changing inertia of a roll. This feature requires a
diameter sensor. See also USE GAIN SCHEDULING
Gain scheduling parameters
Select to access the gain scheduling parameters. The
operator must store tuning parameters for full roll and
core; CYGNUS will then create the values for all points
in between. See also USE GAIN SCHEDULING,
STORE VALUES and RECOVER VALUES
Hold
Display indicates the present mode of operation is
"machine stopped"; this is activated when TB3.1 and
TB3.2 are closed and the STOP TIME expires. See also
HOLD LEVEL___% , HOLD MULT___ , and HOLD
LEVEL CHANGES WITH:
Hold and Splice features
Select to access the menu of HOLD and SPLICE
features
Hold level ___%
Enter a value from 0 - 100% that will dictate the control
output while CYGNUS is in HOLD mode. The tension
display will function normally during this time
Hold level changes with: diameter
Toggle to change the HOLD LEVEL output according to
the present diameter of the roll. This feature provides
accurate hold levels that compensate for the changing
weight of an unwinding roll and requires the DIAMETER
SENSOR TYPE to be properly configured
Hold level changes with: diameter & tension
Toggle to use both HOLD LEVEL CHANGES WITH
TENSION and HOLD LEVEL CHANGES WITH
DIAMETER
Hold level changes with: none
Toggle to set output during HOLD mode using the
HOLD LEVEL ___% parameter
Hold level changes with: output
Toggle to set output during HOLD mode by multiplying
the HOLD MULT___ with the last output before the
STOP signal was received. This will compensate for the
changing weight of an unwinding roll without requiring a
diameter input
Summary of Contents for Cygnus MAGPOWR
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