37
Winding diameter compensation
function
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.
(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
.
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
10mm of last stored diameter when winding diameter
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.
(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.
When exchanging a spool in a winding (unwinding) shaft, always perform stored winding diameter clear (turn ON X55)
and set to the initial value.
Parameter
Number
Name
Setting Range
Increments
Initial Value
781
Winding diameter storage selection
0, 1
1
0
782
Stored winding diameter
1 to 6553
1mm
1mm
783
Operation time with stored winding
diameter
0.00 to 100.00s
0.01s
0s
Pr. 781
Setting
Winding diameter storage
Initial winding diameter when power or winding diameter
compensation function turns ON.
0
Does not store winding
diameter
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.
1
Stores winding 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.
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.
X55 signal
Winding/unwinding selection
(
Pr. 762
, X56)
Value after stored winding diameter clear
(X53/X54)
OFF
ON
Winding
(
Pr. 762
="0" or X56 signal ON)
Minimum value (
Pr. 721, Pr. 723, Pr. 725, Pr. 727
)
Unwinding
(
Pr. 762
="1" or X56 signal OFF)
Maximum value (
Pr. 720, Pr. 722, Pr. 724, Pr. 726
)
