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Continued from the last page.
Adjustment at medium diameter roll 1
Increase Pr. 820 Speed control P gain 1 by 10% increments, and
adjust the gain to "the setting before vibration/noise is produced"
"0.8 to 0.9" throughout minimum speed to maximum speed.
Make a memo of the setting (C) in Pr. 820 Speed control P gain 1 at
this time.
Adjustment at medium diameter roll 2
Increase Pr. 820 Speed control P gain 1 by 10% increments, and
adjust the gain to "the value of setting before vibration/noise is
produced" "0.8 to 0.9" throughout minimum speed to maximum
speed.
Make a memo of the setting (D) in Pr. 820 Speed control P gain 1 at
this time.
Set medium diameters.
Medium diameter roll 1
Pr. 775 Speed control proportion term applied diameter 1
= (Medium diameter roll 1 - minimum diameter)
/(Maximum diameter - minimum diameter) 100 (%)
Medium diameter roll 2
Pr. 776 Speed control proportion term applied diameter 2
= (Medium diameter roll 2 - minimum diameter)
/(Maximum diameter - minimum diameter) 100 (%)
Refer to the memos you made, and set "A" to Pr. 777 Speed control
proportional gain 1, "C" to Pr. 778 Speed control proportional gain 2,
"D" to Pr. 779 Speed control proportional gain 3, and "B" to Pr. 780
Speed control proportional gain 4.
Speed control P/I gain adjustment
completed
Continue to dancer control PID gain
adjustment (page 24)
Medium diameter roll is
available.
Gain adjustment in actual operation
Obtain the setting(C) for Pr. 778 from the formula below.
Obtain the setting(D) for Pr. 779 from the formula below.
Calculation to obtain Pr. 778 and Pr. 779
Pr. 780
Pr. 779
Pr. 778
Pr. 777
Min. diameter
Pr. 778 = /5 + Pr. 777
Pr.779 = 8 /15 + Pr. 777
However,
= Pr. 780 - Pr. 777
Medium diameter roll is not
available.
X
X
Max. diameter
1
2
23
3
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