Static friction, Dynamic friction, Output level bias – Cleveland Motion Controls WebPro Winder Tension ControllerMWP-12664 REV BA User Manual

Page 16: Output level limit, Diameter adjustment, Set point ramp rate, Soft stop time, Display damping time, Display precision, Right transducer

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AO-70171

15

Revision BA

WebPro Winder Tension Controller

Static friction

(For Torque control mode only)

The procedure for establishing this value is explained in Controller Tuning, below.


Dynamic friction

(For Torque control mode only)

The procedure for establishing this value is explained in Controller Tuning, below.


Output level bias

The procedure for establishing this value is explained in Controller Tuning, below.


Output level limit

The procedure for establishing this value is explained in Controller Tuning, below.


Diameter adjustment

(Clutch Winder only)

In Clutch Winder mode, the Controller will self calculate the reel diameter without additional
inputs. This self calculated diameter is used to adjust the PI stability settings in proportion to the
reel diameter for optimum performance. The self-calculation is approximately 20% accurate and
this is usually sufficient for the Clutch Winder mode. The Diameter % bar graph can be set more
accurately by changing the Diameter Adjustment value.


Set point ramp rate

It may cause an unacceptable disturbance and be unsafe if the tension is changed too quickly.
Enter a value which is slightly slower than the PI stability rate so that the system can maintain the
desired tension value as the set point is changed.


Soft stop time

(Clutch Winder only)

Enter a value of time in seconds such that the Controller remains active after the Machine Start or
Select OFF contact is opened. This will maintain control as the machine slows to rest. The
Controller is de-activated immediately the Tension Off key is pressed.


Display damping time

If the tension is fluctuating enter a value between 0.1 and 3 seconds so that the display is steady.
The Display Damping operates on the analog bar graph and the digital display.


Display precision

(1, 5, 10 ( 0.1, 0.5 and 1 for percent units ))

Enter a value so the display can be read easily and the tension set point easily entered. This item
also sets the resolution of the tension set point value.


Right transducer

(Disabled, Enabled)

Select "Disabled" when a single transducer is used, for example in wire and cable or narrow web
applications. The single transducer must be connected to the "Left" terminals using TB3.

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