Parameter setting procedure for dancer feedback speed control
56
Manual adjustment
1
Installation of the minimum-diameter roll
Install the minimum-diameter roll.
2
Speed control integral time setting
Set "0" in
Pr.821 Speed control integral time 1
. (The initial value is 0.333 s.)
3
Adjustment with the minimum-diameter roll
Increase
Pr.820 Speed control P gain 1
by 10%, and adjust the gain to a 80 to 90 % value of the setting
immediately before vibration/noise starts in the range from the minimum number of rotations to the maximum
number of rotations.
Then, set the
Pr.820
value in
Pr.641
.
4
Installation of the maximum-diameter roll
Install the maximum-diameter roll.
NOTE
• If the maximum-diameter roll is not available, perform the "PID gain adjustment" (refer to
), and wind the material up
to the maximum diameter while adjusting
Pr.820 Speed control P gain 1
.
5
Adjustment with the maximum-diameter roll
Adjust the
Pr.820
setting in the same way used for the tuning with the minimum-diameter roll. Then, set the
Pr.820
value in
Pr.644
.
6
Calculation of the medium diameter gain
With medium-diameter roll
No medium-diameter roll
1
Tuning with the medium-diameter roll 1
Adjust the
Pr.820
setting in the same way used for the tuning with
the minimum-diameter roll.
Then, set the
Pr.820
value in
Pr.642
.
Set the result of the following calculation in
Pr.642 Speed control
proportional gain 2
.
2
Tuning with the medium-diameter roll 2
Adjust the
Pr.820
setting in the same way used for the tuning with
the minimum-diameter roll.
Then, set the
Pr.820
value in
Pr.643
.
Set the result of the following calculation in
Pr.643 Speed control
proportional gain 3
.
3
Set the diameters of the medium-diameter rolls.
Medium-diameter roll 1
Pr.639 Speed control proportional term applied diameter 1
= (Medium diameter 1 - Minimum diameter)/(Maximum diameter -
Minimum diameter)
×
100 (%)
Medium-diameter roll 2
Pr.640 Speed control proportional term applied diameter 2
= (Medium diameter 2 - Minimum diameter)/(Maximum diameter -
Minimum diameter)
×
100 (%)
Set "9999" (initial value) in
Pr.639 and Pr.640
.
+
5
Pr.644
−
Pr.641
Pr.642
=
Pr.641
+
15
Pr.644
−
Pr.641
Pr.643
= 8
Pr.641
Summary of Contents for A800 Plus Series
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