SCREEN DEFINITIONS
www.maxcessintl.com
CYGNUS
MI 850A316 1 B
Page 49 of 66
Screen Function
Definition
Hold level changes with: tension
Toggle to change the HOLD LEVEL output by a scaled
amount identical to changes made in the TENSION
SETPOINT. This feature accommodates changing hold
level requirements for different tension setpoints
Hold mult ___
Enter a value to manipulate the control output in HOLD
mode when the HOLD LEVEL CHANGES WITH
OUTPUT option is selected
Home
Selecting this returns you to the home screen
I only
Toggle to design a control loop with INTEGRATOR only
If stable and the above optimization has
been done…
Display prompts the operator to perform manual
optimization while the roll is near core
If stable, optimize first at full roll
Display prompts the operator to perform manual
optimization while the roll is full
Inertia comp
Select to enter Inertia compensation options. Inertia
compensation allows CYGNUS to account for the
different characteristics of roll behavior with the weight
of a full roll versus the weight of the roll at core to
provide improved tension control while accelerating and
stopping.
Integrator ___sec
Enter a value for the integrator time, which is the amount
of time elapsed between control corrections. A value
that is too high will make the system less responsive to
tension errors, while a value that is too low will make the
system quick but unstable. Factory default setting is 2
seconds.
Is accel comp used?
Toggle YES or NO to activate the acceleration
compensation feature. This feature uses the parameters
CORE WK2, ROLL WGT ___, CORE DIA ___, ROLL
DIA ___, WIDTH ___, VELOCITY ___, and
THRESHOLD ___% to adjust the control loop to provide
improved tension control during the special conditions of
acceleration and deceleration. A velocity sensor is
required.
Is inertia comp used?
Toggle YES or NO to activate the inertia compensation
feature. This feature uses the operator entered values
for CORE WK2, ROLL WGT, CORE DIA ___, ROLL DIA
___, DECEL TIME___ SEC, and ACCEL TIME ___SEC
to adjust the applied stopping torque to fit the changing
requirements of a roll as its weight decreases during the
unwind operation. The effect is improved control of
tension during stops throughout the unwind process.
Diameter must be calibrated.
Isolated out modes (4-20 ma, 10v, +/- 10v)
Toggle the control output mode. Verify which is correct
by checking the specifications for the device that the
CYGNUS control output is connected to.
Isolated out use
Toggle to select which output, torque or 1/D, is isolated.
For more information on 1/D, see also Section 8.9
Language
Toggle preferred language to view all screens in:
English, French, German, Spanish, or Italian
Содержание Cygnus MAGPOWR
Страница 2: ......