User manual

12 Functions and operations in the tension control mode
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Step 4 Setting the material inertial moment and core inertial
moment (high function mode II only)
In high function mode II, set a material inertial moment and core inertial moment under each of operation
data numbers from 0 to 7.
Select desired data from among the predefined settings, based on a combination of ON/OFF statuses of M0 to
M2 inputs.
As the material inertial moment, set the value of inertial moment corresponding to the maximum diameter.
(The maximum diameter is the final diameter in the case of winding operation, or initial diameter in the case
of unwinding operation.)
Do not include the core inertial moment in the material inertial moment.
Item Initial value Setting range Description
Core inertial
moment
0 0.00to 99999.99
[× 10
−4
kgm
2
]
Sets the inertial moment of the core.
Material inertial
moment
0 0.00 to 99999.99
[× 10
−4
kgm
2
]
Sets the inertial moment of the material at the
maximum material thickness.
Step 5 Setting the taper
The taper setting lowers the tension as the roll diameter increases, in order to prevent excessively tight
winding.
Set a tension (%) at the maximum diameter under each of operation data numbers from 0 to 7.
Select desired data from among the predefined settings, based on a combination of ON/OFF statuses of M0 to
M2 inputs.
When the taper is 100%, the tension remains constant during the operation.
Setting range: 0 to 100%
Initial value: 100%
Maximum roll diameter
Taper setting parameter = 100%
Ø
Taper setting parameter = 0%
Initial diameter
Tension command
value [%]
0
Winding operation point
When the roll diameter is “0,” the tension command value is used. Once the roll diameter reaches the
maximum diameter, the taper setting will be applied to the tension command value.
Example: When the tension command value is set to 80% and taper setting to 50%
When the roll diameter is “0,” the tension command value is 80%.
Once the roll diameter reaches the maximum diameter, the tension command value will be adjusted to 40%
(80% × 50%). The tension command value traces a straight line connecting these two values between the
point where the roll diameter is “0” and the point where it corresponds to the maximum diameter.
The roll diameter never becomes zero because the core diameter is always included as part of the roll
diameter. The tension controlled operation, practically, starts from the "initial diameter" position as shown in
the graph above.
If the taper setting is a value other than 100%, the taper is applied to the tension command value from the
beginning when the roll diameter is equal to the initial diameter.
If the taper setting is 100%, the tension command value remains the specified value throughout the operation.