Cleveland Motion Controls WebPro Intermediate Tension Controller MWP-12663 REV BA - Manual (Page 17)

AO-70174
17
Revision BA
WebPro Intermediate Tension Controller
Controller Tuning
It is essential that all motor drives are correctly set in accordance with the suppliers instructions BEFORE
the Controller is commissioned. The Controller will not compensate for incorrectly set drives.
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.
Access the Adjust PI stability menu from the Commissioning menu. Run the machine with the Controller
in Auto at a Tension Set Point of approximately 50%. Use the SCROLL keys to select the parameter to be
changed and adjust the parameter using the numeric keys or the +/- keys. Press the CONFIRM key to
implement and save the change. An asterisk alongside the Product Number indicates that a parameter
has been changed and that the CONFIRM key must be pressed to implement and save the change.
When the best performance is achieved stop the machine, remember to press CONFIRM and then press
SET UP to return to the Commissioning menu.
To simplify the tuning there are five factory set PI values. One of these values should be suitable for most
applications. If it is found necessary to apply different PI values, select Custom and starting from PI
values that gave stable but sluggish operation, reduce the P band % value and reduce the I time value
until the desired performance is achieved. Remember to press the CONFIRM key before exiting the
Product Parameter or the Adjust PI stability menus in order to implement and save any changes.
The five preset PI values are:
very slow slow medium fast very fast
Proportional band 2000% 1200% 800% 500% 200%
Integral time 20 sec 12 sec 8 sec 5 sec 2 sec
Maximum Trim
(For Output trim only - NO.)
The amount of trim may be selected in the Product parameter or Adjust PI stability menus, a rigid material
will require less trim than an extensible material.
Soft Start
The Controller is switched to automatic control immediately the Machine Start or Select Auto contacts are
operated or the Auto key is pressed. The Controller is switched off immediately these contacts are
released or the Tension OFF key is pressed.
PRODUCT NUMBER
PI STABILITY
MAX TRIM
PROPORTIONAL BAND
INTEGRAL REPEAT
1 *
MEDIUM
800%
8S
10%
% OUTPUT
TENSION S.P.
45 N