Cleveland Motion Controls WebPro Unwind Brake Tension Controller MWP – 12662 - 0 REV BA - Manual (Page 18)

AO-70173
18
Revision BA
WebPro Unwind Brake Tension Controller
Product Parameters
The default is Product Number 1.
Product # Parameters (SET UP = cancel)
Minimum diameter Enter a value
Full scale diameter Enter a value
Length outputs Disabled, Enabled
Preceding length ( if a line encoder is available )
Full length ( if a line encoder is available )
PI stability setting *
Inertia time constant
( if a line tacho or encoder is available )
Inertia coefficient ( if a line tacho or encoder is available )
Maximum trim ( Speed and Torque control modes only )
Current tension set point ( The last tension value used )
An asterisk * indicates that a further menu will open if this item is selected.
Enter a value for the Minimum Diameter (core) using the selected units.
Enter a value for the Full Scale Diameter (maximum) using the selected units.
If an encoder is available enable the Length Outputs and set the Preceding Length and Full Length.
The procedure for the PI stability settings is explained in Controller Tuning, below.
The Maximum Trim setting is used only for motor powered unwind systems.
Controller Tuning - Unwind Brake Mode
Ensure that all motor drives are correctly set. The Controller will not compensate for incorrectly set drives.
Output Level Bias
Thread up and run the machine slowly with a reel at minimum diameter (core). Select MANUAL and
adjust the output level using the +/- keys until the measured tension digital display and bar graph shows
the minimum desired tension as previously set in the Machine Parameter menu. Record the output %
value.
Stop the machine and enter this % value as the Output Level Bias in the Machine Parameter menu.
Output Level Limit
Thread up and run the machine slowly with a reel of maximum diameter. Select high tension and select
MANUAL from the keypad and increase the output level using the +/- keys until the measured tension
digital display and bar graph shows 100%, maximum. Record the output % value.
Stop the machine and enter this % value as the Output Level Limit in the Machine Parameter menu.
PI Stability Settings
There are two methods of setting the PI stability; through the Product Parameter menu with the machine
at rest or through the Adjust PI stability menu with the machine running.
PRODUCT NUMBER
PI STABILITY
INERTIA TIME CONSTANT
INERTIA COEFFICIENT 2S
0.0%
PROPORTIONAL BAND
INTEGRAL REPEAT
1 *
MEDIUM
800%
8S
OUTPUT %
TENSION S.P.
45 N