User manual

12 Functions and operations in the tension control mode
−105−
Item Description
OPX-2A screen
display
Reference
Analog torque monitor
maximum value
Sets the maximum value of monitored analog torque. This setting
determines the slope of output of monitored analog torque.
[APP-2-10]
Analog torque monitor
maximum voltage
Sets the monitored output voltage corresponding to the
maximum value of monitored analog torque.
[APP-2-11]
Analog torque monitor
offset voltage
Sets the offset voltage for monitored analog torque.
[APP-2-12]
p.125
Acceleration/deceleration
correction filter
Sets the correction filter time constant for acceleration/
deceleration. Increase the value if vibration occurs when the
motor accelerates/decelerates during winding operation.
[APP-4-03] p.115
Friction torque correction Sets the friction torque correction. This parameter corrects the
torque load based on the friction of mechanical parts. The value
is based on the torque detected during idle operation.
[APP-4-04] p.115
 System parameters
Item Description
OPX-2A screen
display
Reference
Encoder output electronic
gear A
Sets the denominator of the electronic gear for encoder output.
[SyS-0-02]
Encoder output electronic
gear B
Sets the numerator of the electronic gear for encoder output.
[SyS-0-03]
p.123
Tension control mode
selection
Sets the operation mode.
[SyS-1-03] p.105
Tension control gear ratio Sets the gear ratio between the motor shaft and winding shaft. [SyS-1-04] p.115
Analog input signals Changes the setting to enable/disable the analog input signals.
[SyS-1-05]
p.107
p.111
Motor rotation direction Set the direction in which motor torque generates. [SyS-1-06] p.109
12.3 Selecting the operation mode
Three operation modes are available in the tension control mode. Set a desired operation mode in the system
parameter for tension control mode [SyS-1-03].
Mode type Description
Simple
(initial value)
The tension is controlled at a constant level when the feed rate is constant during
winding operation, etc. The motor speed is inversely proportional to the torque.
High function I The current winding (unwinding) diameter is calculated automatically based on the
initial diameter, material thickness and final diameter. The tension is controlled at a
constant level regardless of the operating speed.
High function II In addition to the control in high function mode I, the load inertial moment is
calculated internally by the driver based on the material inertial moment and core
inertial moment. The tension is controlled at a constant level even during
acceleration/deceleration.
Note
When a system parameter has been changed, the new parameter will become effective
after the power is cycled. If a 24 VDC power supply is used, also cycle the 24 VDC power
supply.
The operation data items that can be set vary depending on the selected mode.
Tension mode
Setting item
Simple High function I High function II
Tension command value Available Available Available
Material thickness Not available Available Available
Initial diameter Not available Available Available
Final diameter Not available Available Available
Material inertial moment Not available Not available Available
Core inertial moment Not available Not available Available
Taper setting Not available Available Available
Speed limit Available Available Available