Danfoss VLT Center Winder MCO 352 Operating Instructions Manual page 22

4 How to Install
19-28 Tapered Tension Accel Rate
Range:
1* [1 – 10]
19-29 Diameter Calculator Minimum Speed
4
Range:
500* [500 – 200000]
19-30 Line Acceleration Feed-Forward
Range:
0* [ -20000 – 20000]
19-31 Velocity Sampling Time (ms)
Range:
50* [50 – 500]
19-40 Tension PID Limit
Range:
0* [0 – 200000]
19-41 PID Profiles
Range:
0* [0 – 10000]
22
Function:
A value of 1 means a maximum taper tension set point change of 0.1 % of full scale is possible
each program scan time.
Sets the amount the Taper and Tension Set-Points can vary each scan period. This function ramps
the tapered tension set-point to the preset value when the user changes either the tension or taper
set-points. This ensures stability during step changes in set-points.
Function:
100,000 = 100 % line speed
Sets minimum line speed to be achieved before the diameter calculator will be activated. At low line
speeds, the resolution of the line and winder speed will be too low to accurately calculate the di-
ameter.
Function:
The tension PID output is summed with the change per scan of line speed multiplied by this
factor.
( ) × (
Line speed
PID output +
1000
Helps compensate for tension changes caused by line speed acceleration and deceleration.
Function:
The speed values are averaged over the sampling time.
Sets sampling time for both line speed and winder speed.
Function:
16,384 = 100 %
Sets maximum Tension PID loop output that can be added to the open loop speed reference. The
value is normally set to limit the contribution of the tension PID loop to 10 % of the maximum
reference speed.
Function:
A value of 10,000 = fully profiled.
Allows scaling the tension loop PID output to compensate for roll diameter. Ideally, the output from
the tension loop PID amplifier is halved each time the diameter doubles, this is considered fully
profiled. In some cases it might be desirable to be less than fully profiled which would give over
compensation as the diameter increases.
®
MG.33.T1.02 - VLT is a registered Danfoss trademark
®
VLT Center Winder MCO 352
. 19 − 30 )
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