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3.8.6
Storage and clear of winding diameter calculation result (Pr. 781 to Pr. 783, X55
signal)
Results of winding diameter calculation can be stored in inverter.
Parameter
Number
781
Winding diameter storage selection
782
Stored winding diameter
Operation time with stored winding
783
diameter
(1)
Winding diameter storage selection (Pr. 781)
Select whether to store winding diameter or not when main power or winding diameter compensation function turns
OFF by setting Pr. 781 Winding diameter storage selection.
Pr. 781 Setting
Winding diameter storage
Does not store winding
0
1
Stores winding diameter
Winding diameter is kept independently of Pr. 781 setting when start commands (STF, STR) are OFF.
The winding diameter compensation function can be turned ON/OFF by X83 signal, Pr. 771 setting, and a prioritized
operation such as JOG operation.
If the calculated winding diameter is no greater than
compensation function is OFF, the calculated winding diameter is not stored.
The values are rounded to the nearest integer.
Stored winding diameter can be cleared with X55 signal.
REMARKS
If the power supply is disconnected, the winding diameter may be lost. To make sure that the winding diameter is stored, use X83 signal
to turn OFF the winding diameter compensation function.
(2)
Stored winding diameter (Pr. 782)
Winding diameter presently stored can be monitored with Pr. 782.
Stored winding diameter can be changed by overwriting desired value in Pr. 782.
(3)
Operation time with stored winding diameter (Pr. 783)
Winding diameter is kept for the duration set in Pr. 783 after start command is given.
Set any value other than "0" (0.01s increments) when using winding diameter storage (Pr. 781 = "1").
(4)
Stored winding diameter clear (X55)
Stored winding diameter is cleared when X55 turns ON from OFF. After the clear, winding diameter is decided by
setting of Pr. 762 Winding/unwinding selection and ON/OFF of X53 to X56 signals. (Refer to page 35)
For the X55 signal, set "55" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.
Winding/unwinding selection
X55 signal
(Pr. 762 ="0" or X56 signal ON)
OFF ON
(Pr. 762 ="1" or X56 signal OFF)
When exchanging a spool in a winding (unwinding) shaft, always perform stored winding diameter clear (turn ON X55)
and set to the initial value.
Name
Maximum winding diameter (Pr. 720, Pr. 722, Pr. 724, Pr. 726) or minimum
winding diameter (Pr. 721, Pr. 723, Pr. 725, Pr. 727) are used as the initial winding
diameter
diameter.
Stored winding diameter in an inverter are used as the initial winding diameter.
Winding diameter is stored when power or winding diameter compensation
function turns OFF.
The last stored winding diameter are used as the initial winding diameter when
the power or winding diameter compensation function turns ON.
(Pr. 762 , X56)
Winding
Unwinding
Winding diameter compensation
Setting Range
Increments
0, 1
1 to 6553
0.00 to 100.00s
Initial winding diameter when power or winding diameter
compensation function turns ON.
10mm of last stored diameter when winding diameter
Value after stored winding diameter clear
(X53/X54)
Minimum value (Pr. 721, Pr. 723, Pr. 725, Pr. 727)
Maximum value (Pr. 720, Pr. 722, Pr. 724, Pr. 726)
function
Initial Value
1
0
1mm
1mm
0.01s
0s
3
37
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