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Winding diameter compensation
function
3.8.3
Setting at driving shaft (Pr. 762, Pr. 773, Pr. 774, X56 signal)
(1)
Winding/unwinding selection with parameter (Pr. 762)
Select whether driving roll is a winding shaft or unwinding shaft.
(Initial winding diameter of winding shaft is the minimum diameter, initial winding diameter of unwinding shaft is the
maximum diameter.)
Pr. 762 Winding/unwinding selection
0
1
(2)
Winding/unwinding selection by external terminal input (X56 signal)
When X56 is assigned to any input terminal (Pr. 178 to Pr. 189), the setting in Pr. 762 becomes disabled, and winding/
unwinding shaft is selected by the ON/OFF of input terminal.
X56 signal
ON
OFF
(3)
Gear ratio calculation (Pr. 773, Pr. 774)
Set a gear ratio when a reduction gear is installed between the driving shaft and motor shaft.
Parameter
Number
773
Gear ratio numerator (driver side)
Gear ratio denominator (follower
774
side)
Gear ratio calculation
Gear ratio Z =
POINT
Set the gear ratio accurately.
The gear ratio is recommended to be in the range of 1/50 to 1/20.
34
Name
Setting Range
Pr. 773
Pr. 774
Winding/unwinding
Winding
Unwinding
Winding/unwinding
Winding
Unwinding
Increments
1 to 65534
1
1 to 65534
1
Initial Value
1
1
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