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Winding diameter compensation
function
(3)
Minimum winding diameter/maximum diameter and material thickness selection by external
terminal input (X53 signal, X54 signal)
By switching ON/OFF X53 signal and X54 signal, minimum/maximum winding diameter can be selected.
For the X53/X54 signal, set "53(X53)/54(X54)" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the
function.
When X53/X54 are not assigned, maximum diameter is Pr. 720, and minimum diameter is Pr. 721.
Material thickness 1 to 4 can be selected with X53/X54 signals when the winding diameter calculation method based on
the material thickness is selected.
External input signal
X53
X54
OFF
OFF
Maximum winding diameter 1 Pr. 720/Minimum diameter 1 Pr. 721
ON
OFF
Maximum winding diameter 2 Pr. 722/Minimum diameter 2 Pr. 723
OFF
ON
Maximum winding diameter 3 Pr. 724/Minimum diameter 3 Pr. 725
ON
ON
Maximum winding diameter 4 Pr. 726/Minimum diameter 4 Pr. 727
POINT
Set the maximum diameter at unwinding and the minimum diameter at winding accurately.
3.8.5
Rotation speed at winding diameter calculated value activation (Pr. 797)
Parameter
Number
Rotation speed at winding diameter
797
calculated value activation
When rotation speed of motor reaches or becomes faster than Pr. 797 Rotation speed at winding diameter calculated value
activation, winding diameter calculation is performed, and result of winding diameter calculation is updated.
When rotation speed does not reach Pr. 797 Rotation speed at winding diameter calculated value activation, winding diameter
calculation is not performed and last winding diameter value is kept.
Change of winding diameter, which is caused by calculation error at low-speed operation, can be reduced.
Winding diameter calculation is performed when main rotation speed reaches or becomes faster than Pr. 797.
Result obtained from winding diameter calculation is kept when main rotation speed does not reach Pr. 797.
Speed
Pr. 797
Rotation speed at winding
diameter calculated value activation
Motor speed
Winding diameter
REMARKS
This function is disabled when initial diameter calculation function is valid.
36
Maximum winding diameter/minimum winding diameter
Name
Winding diameter is kept
Setting Range
Increments
0 to 400Hz
0.01Hz
Winding
diameter calculation
Material thickness
Material thickness d1 Pr. 752
Material thickness d2 Pr. 753
Material thickness d3 Pr. 754
Material thickness d4 Pr. 755
Initial Value
3Hz
Winding diameter is kept
Time
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